IBM PC Series 300: Difference between revisions

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| type = Corporate / SMB desktop personal computer family — ISA + PCI / AGP

| release date = October 1994 (PC Series announced); 1995 (PC 300 Series Model 330 launch)

| discontinued = October 2000 (PC Series brand withdrawn; replaced by [[IBM NetVista]])

| discontinued = October 2000 (PC Series brand withdrawn; replaced by IBM NetVista)

| cpu = Intel i486 25–100 MHz; Pentium 60–200 MHz; Pentium MMX 166–233 MHz; Pentium Pro 150/180/200 MHz (single on PC 360, dual on PC 365); Pentium II Klamath / Deschutes 233–450 MHz; Pentium III Katmai / Coppermine 450–866+ MHz; Celeron 266–533 MHz (PPGA / FC-PGA)

| memory = 4 × 72-pin SIMM (early); transitional 1 × DIMM-168 + 4 × 72-pin SIMM (6577 / 6587); 168-pin EDO DIMM (6588 / 6589); PC100 SDRAM DIMM (300GL / 300PL Pentium II+, 384 MB official / 512 MB unofficial)

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| os = IBM PC DOS 7.0; Microsoft Windows 3.1 / Windows 95 / Windows 98 / Windows NT 4.0 / Windows 2000; IBM OS/2 Warp 3 / Warp 4

| predecessor = [[IBM PS/ValuePoint]]

| successor = [[IBM NetVista]] (most of the line); [[IBM IntelliStation]] (replaced PC 360 / 365 Pentium Pro workstations)

| successor = IBM NetVista (most of the line); [[IBM IntelliStation]] (replaced PC 360 / 365 Pentium Pro workstations)

| model = 6560, 6571, 6573, 6575, 6576, 6577, 6581, 6583, 6585, 6586, 6587, 6588, 6589, 6598; 6561, 6562, 6563, 6564, 6565, 6574, 6591, 6592, 6862, 6872, 6892; 6263, 6265, 6268, 6272, 6275, 6277, 6278, 6282, 6284, 6285, 6287, 6288

}}

The '''IBM PC Series 300''' (also known as the '''IBM PC 300''' family, sometimes written '''PC 300''') is IBM's corporate / SMB desktop personal computer family, '''announced as part of the IBM PC Series in October 1994''' and discontinued in '''October 2000''' when the PC Series brand was withdrawn and replaced by '''[[IBM NetVista]]'''.<ref>https://en.wikipedia.org/wiki/IBM_PC_Series</ref> The PC Series 300 was IBM's successor to the '''[[IBM PS/ValuePoint]]''' and ran in parallel with the high-end '''[[IBM IntelliStation]]''' (which replaced the Pentium Pro PC 360 / 365 workstations) and the consumer '''[[IBM Aptiva]]'''.

The '''IBM PC Series 300''' (also known as the '''IBM PC 300''' family, sometimes written '''PC 300''') is IBM's corporate / SMB desktop personal computer family, '''announced as part of the IBM PC Series in October 1994''' and discontinued in '''October 2000''' when the PC Series brand was withdrawn and replaced by '''IBM NetVista'''.<ref name="s1f0306">[https://en.wikipedia.org/wiki/IBM_PC_Series Wikipedia — IBM PC Series] Tertiary source.</ref> The PC Series 300 was IBM's successor to the '''[[IBM PS/ValuePoint]]''' and ran in parallel with the high-end '''[[IBM IntelliStation]]''' (which replaced the Pentium Pro PC 360 / 365 workstations) and the consumer '''IBM Aptiva'''.

The PC Series 300 spans '''two distinct hardware generations''' separated by a model-naming reorganisation in 1997:

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== Note on Sub-Brand Boundaries ==

The same numeric MTs were occasionally reused across generations as IBM transitioned naming. For example, MTs '''6584 / 6585 / 6586 / 6587''' are '''first-generation PC 350''' machine types; '''6588''' is the '''PC 300XL''' Pentium MMX / Pentium II Klamath board (Intel 440FX);<ref>https://ancientelectronics.wordpress.com/2021/12/16/ibm-pc-300xl-model-6588/</ref> '''6589''' is the dual-Pentium Pro '''PC 365''' (Intel 440FX with PIIX3).<ref>https://theretroweb.com/motherboards/s/ibm-pc-365-type-6589</ref> Verify your machine's sub-brand against the rear-panel label rather than against the MT alone.

The same numeric MTs were occasionally reused across generations as IBM transitioned naming. For example, MTs '''6584 / 6585 / 6586 / 6587''' are '''first-generation PC 350''' machine types; '''6588''' is the '''PC 300XL''' Pentium MMX / Pentium II Klamath board (Intel 440FX);<ref name="s649b81">[https://ancientelectronics.wordpress.com/2021/12/16/ibm-pc-300xl-model-6588/ Ancient Electronics — ibm pc 300xl model 6588]</ref> '''6589''' is the dual-Pentium Pro '''PC 365''' (Intel 440FX with PIIX3).<ref name="sfedbb8">[https://theretroweb.com/motherboards/s/ibm-pc-365-type-6589 TheRetroWeb — ibm pc 365 type 6589] Community board database.</ref> Verify your machine's sub-brand against the rear-panel label rather than against the MT alone.

== First-Generation: PC 300 Series Models 330 / 340 / 350 / 360 / 365 (1995–1996) ==

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! MT !! Model !! CPU !! Chipset !! Notes

|-

| '''6571 / 6573''' || '''PC 300 Model 330''' || Intel i486 25–100 MHz || OPTi || ISA / VLB or ISA / PCI '''SelectaBus''' riser<ref~~>https:~~/~~/en.wikipedia.org/wiki/IBM_PC_Series</ref~~>

| '''6571 / 6573''' || '''PC 300 Model 330''' || Intel i486 25–100 MHz || OPTi || ISA / VLB or ISA / PCI '''SelectaBus''' riser<ref name="s1f0306" />

|-

| '''6575''' || PC 300 Model 330 || Pentium 60/66 MHz (Socket 4) || Intel 430LX || P5 → Pentium OverDrive to 133 MHz

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| '''6576''' || PC 300 Model 330 || Pentium P54C 75–100 MHz (Socket 7) || Intel 430FX || OverDrive to 200 MHz

|-

| '''6577''' || PC 300 Model 330 || Pentium P54C 75–166 MHz || Intel 430FX || '''Transitional memory''': 1 × DIMM-168 (5 V EDO only — '''do not''' fit 3.3 V SDRAM) + 4 × 72-pin SIMM; supports Pentium MMX 233 at 75 MHz BCLK<ref~~>https:~~/~~/en.wikipedia.org/wiki/IBM_PC_Series</ref~~>

| '''6577''' || PC 300 Model 330 || Pentium P54C 75–166 MHz || Intel 430FX || '''Transitional memory''': 1 × DIMM-168 (5 V EDO only — '''do not''' fit 3.3 V SDRAM) + 4 × 72-pin SIMM; supports Pentium MMX 233 at 75 MHz BCLK<ref name="s1f0306" />

|-

| '''6560''' || '''PC 300 Model 340''' || Pentium 100/133/166 MHz || Intel 430HX/VX || Budget Pentium, 4 ISA + 3 PCI, 4 × 72-pin SIMM<ref~~>https:~~/~~/en.wikipedia.org/wiki/IBM_PC_Series</ref~~>

| '''6560''' || '''PC 300 Model 340''' || Pentium 100/133/166 MHz || Intel 430HX/VX || Budget Pentium, 4 ISA + 3 PCI, 4 × 72-pin SIMM<ref name="s1f0306" />

|-

| '''6581 / 6583''' || '''PC 350''' || Intel i486 25–100 MHz || OPTi || Larger case than 330; ISA / VLB or ISA / PCI riser

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| '''6585''' || PC 350 || Pentium 60/66 MHz || Intel 430LX ||

|-

| '''6586''' || PC 350 || Pentium P54C 75–100 MHz || Intel 430FX (Triton) || '''Intel-designed planar''', Intel/AMI BIOS (not IBM SurePath)<ref~~>https:~~/~~/en.wikipedia.org/wiki/IBM_PC_Series</ref~~>; up to 128 MB

| '''6586''' || PC 350 || Pentium P54C 75–100 MHz || Intel 430FX (Triton) || '''Intel-designed planar''', Intel/AMI BIOS (not IBM SurePath)<ref name="s1f0306" />; up to 128 MB

|-

| '''6587''' || PC 350 || Pentium P54C 75–200 MHz || Intel 430HX || Up to 192 MB; supports Pentium MMX 233 at 75 MHz BCLK

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| '''6598''' || '''PC 360 Model 360''' || Single Pentium Pro 150 / 200 MHz (Socket 8) || Intel 440FX || 6 expansion slots, 6 bays, 4 × 72-pin SIMM up to 128 MB, IBM SurePath BIOS

|-

| '''6589''' || '''PC 365''' || '''Dual Pentium Pro 180 / 200 MHz''' (Socket 8) || Intel 82440FX (82441FX PMC + 82442FX DBX + 82371SB PIIX3) || 4 × DIMM-168 EDO unbuffered/registered up to 512 MB, ISA / PCI<ref~~>https:~~/~~/theretroweb.com/motherboards/s/ibm-pc-365-type-6589</ref~~>

| '''6589''' || '''PC 365''' || '''Dual Pentium Pro 180 / 200 MHz''' (Socket 8) || Intel 82440FX (82441FX PMC + 82442FX DBX + 82371SB PIIX3) || 4 × DIMM-168 EDO unbuffered/registered up to 512 MB, ISA / PCI<ref name="sfedbb8" />

|}

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! MT !! CPU !! Chipset !! Notes

|-

| 6561 / 6591 / 6872 || Pentium II Slot 1 || Intel '''440LX''' (Balboa), 66 MHz FSB ||<ref>https://theretroweb.com/motherboards/s/ibm-pc-300-type-6561,-6591,-6872</ref>

| 6561 / 6591 / 6872 || Pentium II Slot 1 || Intel '''440LX''' (Balboa), 66 MHz FSB ||<ref name="sa99af5">[https://theretroweb.com/motherboards/s/ibm-pc-300-type-6561,-6591,-6872 TheRetroWeb — ibm pc 300 type 6561, 6591, 6872] Community board database.</ref>

|-

| 6563 / 6564 / 6574 || Pentium MMX / early P II || Intel 430HX or 440LX || Grouped with PC 300PL 6565 in TIM

|-

| 6272 / 6282 / 6284 || Pentium II / III Slot 1 || Intel 440BX || NLX form factor<ref>https://theretroweb.com/motherboards/s/ibm-pc-300gl-type-6272,-6282,-6284</ref>

| 6272 / 6282 / 6284 || Pentium II / III Slot 1 || Intel 440BX || NLX form factor<ref name="s6355f7">[https://theretroweb.com/motherboards/s/ibm-pc-300gl-type-6272,-6282,-6284 TheRetroWeb — ibm pc 300gl type 6272, 6282, 6284] Community board database.</ref>

|-

| 6268 / 6278 / 6288 || Pentium II / Celeron || Intel 440BX or 440LX || 1999 datasheet

|-

| '''6275 / 6285''' || '''Celeron 333 / 366 / 433 (PPGA)''' || Intel '''440BX''' AGP || 66 MHz FSB only, '''non-parity SDRAM only''', 2 DIMM slots up to 256 MB, S3 Trio3D 2 / 4 MB SGRAM AGP integrated, Ultra ATA, 10/100 Ethernet, 2 × USB<ref>http://ps-2.kev009.com/pccbbs/commercial_desktop/glcel323.pdf</ref>

| '''6275 / 6285''' || '''Celeron 333 / 366 / 433 (PPGA)''' || Intel '''440BX''' AGP || 66 MHz FSB only, '''non-parity SDRAM only''', 2 DIMM slots up to 256 MB, S3 Trio3D 2 / 4 MB SGRAM AGP integrated, Ultra ATA, 10/100 Ethernet, 2 × USB<ref name="s9c5552">[http://ps-2.kev009.com/pccbbs/commercial_desktop/glcel323.pdf kev009.com — IBM PS/2 and PC document mirror — glcel323]</ref>

|-

| 6263 / 6265 || PC 300 Celeron / Pentium II || ||<ref>https://theretroweb.com/motherboards/s/ibm-pc300-type-6263,-6265,-6275,-6285</ref>

| 6263 / 6265 || PC 300 Celeron / Pentium II || ||<ref name="s03600c">[https://theretroweb.com/motherboards/s/ibm-pc300-type-6263,-6265,-6275,-6285 TheRetroWeb — ibm pc300 type 6263, 6265, 6275, 6285] Community board database.</ref>

|-

| 6277 / 6287 || Pentium II / III || Intel 440LX / BX ||<ref>https://theretroweb.com/motherboards/s/ibm-pc-300-type-6277,-6287-pentium-ii-penti</ref>

| 6277 / 6287 || Pentium II / III || Intel 440LX / BX ||<ref name="s13c09d">[https://theretroweb.com/motherboards/s/ibm-pc-300-type-6277,-6287-pentium-ii-penti TheRetroWeb — ibm pc 300 type 6277, 6287 pentium ii penti] Community board database.</ref>

|}

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! MT !! CPU !! Chipset !! Notes

|-

| '''6862 / 6892''' || Pentium II 233–450 MHz, Pentium III 450–866 MHz (officially up to 550 MHz, up to 800 / Coppermine confirmed with BIOS update; Tualatin 1.3 GHz reported via PowerLeap adapter) || Intel '''440LX''' family || '''NLX form factor''', AGP 2× at offset position (requires NLX-compatible video card), 3 × PCI + 2 × ISA via riser, '''384 MB official / 512 MB unofficial PC100 SDRAM''', S3 Trio3D 2 MB SGRAM AGP integrated, Crystal CS4235-KQ audio, '''Alert on LAN''', Wake on LAN, '''10/100 PCI Ethernet'''<ref>https://ancientelectronics.wordpress.com/2020/11/21/ibm-pl300-type-6862/</ref><ref>http://ps-2.kev009.com/pccbbs/commercial_desktop/glpiii32.pdf</ref>

| '''6862 / 6892''' || Pentium II 233–450 MHz, Pentium III 450–866 MHz (officially up to 550 MHz, up to 800 / Coppermine confirmed with BIOS update; Tualatin 1.3 GHz reported via PowerLeap adapter) || Intel '''440LX''' family || '''NLX form factor''', AGP 2× at offset position (requires NLX-compatible video card), 3 × PCI + 2 × ISA via riser, '''384 MB official / 512 MB unofficial PC100 SDRAM''', S3 Trio3D 2 MB SGRAM AGP integrated, Crystal CS4235-KQ audio, '''Alert on LAN''', Wake on LAN, '''10/100 PCI Ethernet'''<ref name="s383b0b">[https://ancientelectronics.wordpress.com/2020/11/21/ibm-pl300-type-6862/ Ancient Electronics — ibm pl300 type 6862]</ref><ref name="s891989">[http://ps-2.kev009.com/pccbbs/commercial_desktop/glpiii32.pdf kev009.com — IBM PS/2 and PC document mirror — glpiii32]</ref>

|-

| 6562 / 6592 || Pentium MMX || Intel 430HX (Triton II) || Socket 7<ref>https://theretroweb.com/motherboards/s/ibm-pc-300pl-type-6562,-6592</ref>

| 6562 / 6592 || Pentium MMX || Intel 430HX (Triton II) || Socket 7<ref name="sb14be0">[https://theretroweb.com/motherboards/s/ibm-pc-300pl-type-6562,-6592 TheRetroWeb — ibm pc 300pl type 6562, 6592] Community board database.</ref>

|-

| 6565 || Pentium II Slot 1 || ||

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! MT !! CPU !! Chipset !! Notes

|-

| '''6588''' || Pentium MMX 233 MHz '''or''' Pentium II Klamath 233 / 266 / 300 MHz '''only''' || Intel '''440FX''' || No 100 MHz FSB; Klamath 2.8 V only, '''no Deschutes''' due to VRM; 4 × 168-pin '''unbuffered 3.3 V EDO DIMM''' 60 ns (SDRAM physically fits but does not work); S3 Trio64V2/DX 2 MB integrated, PCI-only (no AGP)<ref~~>https:~~/~~/ancientelectronics.wordpress.com/2021/12/16/ibm-pc-300xl-model-6588/</ref~~>

| '''6588''' || Pentium MMX 233 MHz '''or''' Pentium II Klamath 233 / 266 / 300 MHz '''only''' || Intel '''440FX''' || No 100 MHz FSB; Klamath 2.8 V only, '''no Deschutes''' due to VRM; 4 × 168-pin '''unbuffered 3.3 V EDO DIMM''' 60 ns (SDRAM physically fits but does not work); S3 Trio64V2/DX 2 MB integrated, PCI-only (no AGP)<ref name="s649b81" />

|}

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# '''Pentium II / III NLX era''' (6862, 6892, 6275, 6285, 6272, 6282, 6284) — Intel 440LX / 440BX, AGP.

The '''SurePath BIOS''' (IBM's Phoenix-derived BIOS brand) runs across the bulk of the family except the '''6586''', which uses an Intel-designed planar with '''Intel / AMI BIOS''' instead.<ref~~>https:~~/~~/en.wikipedia.org/wiki/IBM_PC_Series</ref~~>

The '''SurePath BIOS''' (IBM's Phoenix-derived BIOS brand) runs across the bulk of the family except the '''6586''', which uses an Intel-designed planar with '''Intel / AMI BIOS''' instead.<ref name="s1f0306" />

== Memory Topology ==

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|}

'''The DIMM keying notch on the 6577 / 6587 / 6588 boards is for EDO, not SDRAM.''' Physically possible to insert a modern SDRAM DIMM in a 3.3 V EDO slot (won't work, low risk of damage) or to force a 5 V EDO module in a 3.3 V slot (potentially damaging).<ref~~>https:~~/~~/ancientelectronics.wordpress.com/2021/12/16/ibm-pc-300xl-model-6588/</ref~~>

'''The DIMM keying notch on the 6577 / 6587 / 6588 boards is for EDO, not SDRAM.''' Physically possible to insert a modern SDRAM DIMM in a 3.3 V EDO slot (won't work, low risk of damage) or to force a 5 V EDO module in a 3.3 V slot (potentially damaging).<ref name="s649b81" />

== Storage ==

All PC 300 family planars use '''on-planar IDE / ATA''' (primary IDE channel; later boards add a secondary channel for the CD-ROM). The 6275 / 6285 / 6862 / 6892 generation supports '''Ultra ATA (UDMA-33)'''.<ref~~>http://ps-2.kev009.com/pccbbs/commercial_desktop/glcel323.pdf<~~/~~ref~~> Optional IBM PCI SCSI adapters were available for PC 300PL and PC 365 (with 1.2–30 GB IBM SCSI drives).<ref~~>https://en.wikipedia.org~~/~~wiki/IBM_PC_Series</ref~~>

All PC 300 family planars use '''on-planar IDE / ATA''' (primary IDE channel; later boards add a secondary channel for the CD-ROM). The 6275 / 6285 / 6862 / 6892 generation supports '''Ultra ATA (UDMA-33)'''.<ref name="s9c5552" /> Optional IBM PCI SCSI adapters were available for PC 300PL and PC 365 (with 1.2–30 GB IBM SCSI drives).<ref name="s1f0306" />

== Graphics ==

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* '''PC 300XL 6588''' — integrated S3 Trio64V2/DX 2 MB only.

* '''PC 300GL Celeron 6275 / 6285''' — integrated S3 Trio3D 2 / 4 MB SGRAM AGP.

* '''PC 300PL 6862 / 6892''' — integrated S3 Trio3D 2 MB SGRAM AGP; '''NLX-offset AGP slot''' requires NLX-compatible video card with high-mounted output connector.<ref~~>https:~~/~~/ancientelectronics.wordpress.com/2020/11/21/ibm-pl300-type-6862/</ref~~>

* '''PC 300PL 6862 / 6892''' — integrated S3 Trio3D 2 MB SGRAM AGP; '''NLX-offset AGP slot''' requires NLX-compatible video card with high-mounted output connector.<ref name="s383b0b" />

* '''Late PC 300PL Pentium III''' — options included S3 Savage4, Matrox MGA-G200 / G400, ATI Rage IIC / Pro, NVIDIA TNT2 M64 32 MB.

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== System Management (PC 300PL) ==

The PC 300PL 6862 / 6892 supports IBM's '''Alert on LAN''' (monitors voltage, fan, temperature), '''Wake on LAN''', and DMI. The 10/100 PCI Ethernet adapter supports Wake-on-LAN via a small auxiliary cable from the Ethernet card to the planar AOL header. The PSU has a '''standby rail''' that powers the Ethernet adapter when the system is otherwise off.<ref~~>http:~~/~~/ps-2.kev009.com/pccbbs/commercial_desktop/glpiii32.pdf</ref~~>

The PC 300PL 6862 / 6892 supports IBM's '''Alert on LAN''' (monitors voltage, fan, temperature), '''Wake on LAN''', and DMI. The 10/100 PCI Ethernet adapter supports Wake-on-LAN via a small auxiliary cable from the Ethernet card to the planar AOL header. The PSU has a '''standby rail''' that powers the Ethernet adapter when the system is otherwise off.<ref name="s891989" />

== Power Supplies ==

* '''6862 / 6892''' — NLX-style PSU with '''20-pin main connector''' landing on the riser card.<ref>https://www.ibm.com/support/pages/20-pin-main-power-supply-connection-ibm-intellistation</ref>

* '''6862 / 6892''' — NLX-style PSU with '''20-pin main connector''' landing on the riser card.<ref name="s145c43">[https://www.ibm.com/support/pages/20-pin-main-power-supply-connection-ibm-intellistation IBM Support — 20 pin main power supply connection ibm intellistation]</ref>

* '''6588''' — AT form-factor PSU with auxiliary connectors to motherboard and riser.<ref~~>https:~~/~~/ancientelectronics.wordpress.com/2021/12/16/ibm-pc-300xl-model-6588/</ref~~>

* '''6588''' — AT form-factor PSU with auxiliary connectors to motherboard and riser.<ref name="s649b81" />

Specific per-MT wattages are in the per-machine HMM PDF.

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'''IBM SurePath BIOS''' (Phoenix-derived) on most of the family. Exceptions:

* '''6586''' — Intel-designed planar uses '''Intel / AMI BIOS''' (not SurePath).<ref~~>https:~~/~~/en.wikipedia.org/wiki/IBM_PC_Series</ref~~>

* '''6586''' — Intel-designed planar uses '''Intel / AMI BIOS''' (not SurePath).<ref name="s1f0306" />

[[File:IBM PC 300PL 6892 BIOS startup.jpg|right|thumb|320px|IBM PC 300PL Type 6892 BIOS startup screen (IBM SurePath BIOS). (Image: Wikimedia Commons, Public domain)]]

A BIOS update to the latest IBM image is required to enable '''Pentium III Coppermine 800 MHz''' on the 6862 / 6892 — the original sticker only certifies up to 550 MHz.<ref~~>https:~~/~~/ancientelectronics.wordpress.com/2020/11/21/ibm-pl300-type-6862/</ref~~> '''PowerLeap adapter''' field reports document Tualatin 1.3 GHz support on 6862 with an updated BIOS.

A BIOS update to the latest IBM image is required to enable '''Pentium III Coppermine 800 MHz''' on the 6862 / 6892 — the original sticker only certifies up to 550 MHz.<ref name="s383b0b" /> '''PowerLeap adapter''' field reports document Tualatin 1.3 GHz support on 6862 with an updated BIOS.

== Common Faults ==

* '''CHHSI capacitor plague on PC 300PL 6862 / 6892''' — '''560 µF 25 V CHHSI-branded electrolytics''', date codes 1998–1999 (typically WG(M) series), around the VRM and CPU power filtering, are documented as failing. Community recommendation is to replace every CHHSI on the board even if visually fine.<ref>https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-desktop-motherboards-graphics-cards-and-pc-peripherals/86515-ibm-300pl</ref>

* '''CHHSI capacitor plague on PC 300PL 6862 / 6892''' — '''560 µF 25 V CHHSI-branded electrolytics''', date codes 1998–1999 (typically WG(M) series), around the VRM and CPU power filtering, are documented as failing. Community recommendation is to replace every CHHSI on the board even if visually fine.<ref name="s4729cd">[https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-desktop-motherboards-graphics-cards-and-pc-peripherals/86515-ibm-300pl Badcaps forum — 86515 ibm 300pl] Community forum thread; a first-hand report, not a manufacturer document.</ref>

* '''CR2032 RTC battery''' — all PC 300 generations use a socketed CR2032 (no soldered NiCd).

* '''CMOS auto-prompt on settings change''' on PC 350 / 300XL — '''any''' configuration change including unplugging the mouse triggers a "press F1 for setup" prompt.<ref~~>https:~~/~~/ancientelectronics.wordpress.com/2021/12/16/ibm-pc-300xl-model-6588/</ref~~>

* '''CMOS auto-prompt on settings change''' on PC 350 / 300XL — '''any''' configuration change including unplugging the mouse triggers a "press F1 for setup" prompt.<ref name="s649b81" />

* '''EDO vs SDRAM DIMM keying confusion''' on 6577 / 6587 / 6588 / 6589.

* '''Bundled IBM G51 CRT monitor overheating''' (MT 6541-Q0E/G/N/S, 6541-02E/N/S) — '''US CPSC recall''' documented.<ref>http://web.archive.org/web/20030803071351/https:/www.cpsc.gov/cpscpub/prerel/prhtml03/03088.html</ref>

* '''Bundled IBM G51 CRT monitor overheating''' (MT 6541-Q0E/G/N/S, 6541-02E/N/S) — '''US CPSC recall''' documented.<ref name="sb36999">[http://web.archive.org/web/20030803071351/https:/www.cpsc.gov/cpscpub/prerel/prhtml03/03088.html Internet Archive Wayback Machine — 03088] Archived copy; the original page is gone.</ref>

* '''Coppermine boot blocker''' on 6862 / 6892 without BIOS update.

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* [[IBM PC Series 300 Capacitor Replacement Guide]]

* [[IBM PS/ValuePoint]] — predecessor

* [[IBM NetVista]] — successor (PC Series brand replacement)

* IBM NetVista — successor (PC Series brand replacement)

* [[IBM IntelliStation]] — Pentium Pro / Xeon workstation sibling

* [[Capacitor Failure Symptoms]]

* '''IBM documentation hosted here:''' [[IBM Hardware Maintenance Manual Types 6826 8317 8318 8319 (Aptiva)]] — the hardware maintenance manual for IBM's next generation of desktops, types 6826, 8317, 8318 and 8319 (December 2002).

== References ==

=== Further reading ===

* [https://en.wikipedia.org/wiki/IBM_PC_Series IBM PC Series — Wikipedia]. Family overview, launch / discontinuation dates, model-number era to suffix-brand era transition.

@@ Line 8: / Line 8: @@
 | type          = Corporate / SMB desktop personal computer family — ISA + PCI / AGP
 | release date  = October 1994 (PC Series announced); 1995 (PC 300 Series Model 330 launch)
-| discontinued  = October 2000 (PC Series brand withdrawn; replaced by [[IBM NetVista]])
+| discontinued  = October 2000 (PC Series brand withdrawn; replaced by IBM NetVista)
 | cpu           = Intel i486 25–100 MHz; Pentium 60–200 MHz; Pentium MMX 166–233 MHz; Pentium Pro 150/180/200 MHz (single on PC 360, dual on PC 365); Pentium II Klamath / Deschutes 233–450 MHz; Pentium III Katmai / Coppermine 450–866+ MHz; Celeron 266–533 MHz (PPGA / FC-PGA)
 | memory        = 4 × 72-pin SIMM (early); transitional 1 × DIMM-168 + 4 × 72-pin SIMM (6577 / 6587); 168-pin EDO DIMM (6588 / 6589); PC100 SDRAM DIMM (300GL / 300PL Pentium II+, 384 MB official / 512 MB unofficial)
@@ Line 16: / Line 16: @@
 | os            = IBM PC DOS 7.0; Microsoft Windows 3.1 / Windows 95 / Windows 98 / Windows NT 4.0 / Windows 2000; IBM OS/2 Warp 3 / Warp 4
 | predecessor   = [[IBM PS/ValuePoint]]
-| successor     = [[IBM NetVista]] (most of the line); [[IBM IntelliStation]] (replaced PC 360 / 365 Pentium Pro workstations)
+| successor     = IBM NetVista (most of the line); [[IBM IntelliStation]] (replaced PC 360 / 365 Pentium Pro workstations)
 | model         = 6560, 6571, 6573, 6575, 6576, 6577, 6581, 6583, 6585, 6586, 6587, 6588, 6589, 6598; 6561, 6562, 6563, 6564, 6565, 6574, 6591, 6592, 6862, 6872, 6892; 6263, 6265, 6268, 6272, 6275, 6277, 6278, 6282, 6284, 6285, 6287, 6288
 }}
-The '''IBM PC Series 300''' (also known as the '''IBM PC 300''' family, sometimes written '''PC 300''') is IBM's corporate / SMB desktop personal computer family, '''announced as part of the IBM PC Series in October 1994''' and discontinued in '''October 2000''' when the PC Series brand was withdrawn and replaced by '''[[IBM NetVista]]'''.<ref>https://en.wikipedia.org/wiki/IBM_PC_Series</ref> The PC Series 300 was IBM's successor to the '''[[IBM PS/ValuePoint]]''' and ran in parallel with the high-end '''[[IBM IntelliStation]]''' (which replaced the Pentium Pro PC 360 / 365 workstations) and the consumer '''[[IBM Aptiva]]'''.
+The '''IBM PC Series 300''' (also known as the '''IBM PC 300''' family, sometimes written '''PC 300''') is IBM's corporate / SMB desktop personal computer family, '''announced as part of the IBM PC Series in October 1994''' and discontinued in '''October 2000''' when the PC Series brand was withdrawn and replaced by '''IBM NetVista'''.<ref name="s1f0306">[https://en.wikipedia.org/wiki/IBM_PC_Series Wikipedia &mdash; IBM PC Series] Tertiary source.</ref> The PC Series 300 was IBM's successor to the '''[[IBM PS/ValuePoint]]''' and ran in parallel with the high-end '''[[IBM IntelliStation]]''' (which replaced the Pentium Pro PC 360 / 365 workstations) and the consumer '''IBM Aptiva'''.
 The PC Series 300 spans '''two distinct hardware generations''' separated by a model-naming reorganisation in 1997:
@@ Line 29: / Line 29: @@
 == Note on Sub-Brand Boundaries ==
-The same numeric MTs were occasionally reused across generations as IBM transitioned naming. For example, MTs '''6584 / 6585 / 6586 / 6587''' are '''first-generation PC 350''' machine types; '''6588''' is the '''PC 300XL''' Pentium MMX / Pentium II Klamath board (Intel 440FX);<ref>https://ancientelectronics.wordpress.com/2021/12/16/ibm-pc-300xl-model-6588/</ref> '''6589''' is the dual-Pentium Pro '''PC 365''' (Intel 440FX with PIIX3).<ref>https://theretroweb.com/motherboards/s/ibm-pc-365-type-6589</ref> Verify your machine's sub-brand against the rear-panel label rather than against the MT alone.
+The same numeric MTs were occasionally reused across generations as IBM transitioned naming. For example, MTs '''6584 / 6585 / 6586 / 6587''' are '''first-generation PC 350''' machine types; '''6588''' is the '''PC 300XL''' Pentium MMX / Pentium II Klamath board (Intel 440FX);<ref name="s649b81">[https://ancientelectronics.wordpress.com/2021/12/16/ibm-pc-300xl-model-6588/ Ancient Electronics &mdash; ibm pc 300xl model 6588]</ref> '''6589''' is the dual-Pentium Pro '''PC 365''' (Intel 440FX with PIIX3).<ref name="sfedbb8">[https://theretroweb.com/motherboards/s/ibm-pc-365-type-6589 TheRetroWeb &mdash; ibm pc 365 type 6589] Community board database.</ref> Verify your machine's sub-brand against the rear-panel label rather than against the MT alone.
 == First-Generation: PC 300 Series Models 330 / 340 / 350 / 360 / 365 (1995–1996) ==
@@ Line 37: / Line 37: @@
 ! MT !! Model !! CPU !! Chipset !! Notes
 |-
-| '''6571 / 6573''' || '''PC 300 Model 330''' || Intel i486 25–100 MHz || OPTi || ISA / VLB or ISA / PCI '''SelectaBus''' riser<ref>https://en.wikipedia.org/wiki/IBM_PC_Series</ref>
+| '''6571 / 6573''' || '''PC 300 Model 330''' || Intel i486 25–100 MHz || OPTi || ISA / VLB or ISA / PCI '''SelectaBus''' riser<ref name="s1f0306" />
 |-
 | '''6575''' || PC 300 Model 330 || Pentium 60/66 MHz (Socket 4) || Intel 430LX || P5 → Pentium OverDrive to 133 MHz
@@ Line 43: / Line 43: @@
 | '''6576''' || PC 300 Model 330 || Pentium P54C 75–100 MHz (Socket 7) || Intel 430FX || OverDrive to 200 MHz
 |-
-| '''6577''' || PC 300 Model 330 || Pentium P54C 75–166 MHz || Intel 430FX || '''Transitional memory''': 1 × DIMM-168 (5 V EDO only — '''do not''' fit 3.3 V SDRAM) + 4 × 72-pin SIMM; supports Pentium MMX 233 at 75 MHz BCLK<ref>https://en.wikipedia.org/wiki/IBM_PC_Series</ref>
+| '''6577''' || PC 300 Model 330 || Pentium P54C 75–166 MHz || Intel 430FX || '''Transitional memory''': 1 × DIMM-168 (5 V EDO only — '''do not''' fit 3.3 V SDRAM) + 4 × 72-pin SIMM; supports Pentium MMX 233 at 75 MHz BCLK<ref name="s1f0306" />
 |-
-| '''6560''' || '''PC 300 Model 340''' || Pentium 100/133/166 MHz || Intel 430HX/VX || Budget Pentium, 4 ISA + 3 PCI, 4 × 72-pin SIMM<ref>https://en.wikipedia.org/wiki/IBM_PC_Series</ref>
+| '''6560''' || '''PC 300 Model 340''' || Pentium 100/133/166 MHz || Intel 430HX/VX || Budget Pentium, 4 ISA + 3 PCI, 4 × 72-pin SIMM<ref name="s1f0306" />
 |-
 | '''6581 / 6583''' || '''PC 350''' || Intel i486 25–100 MHz || OPTi || Larger case than 330; ISA / VLB or ISA / PCI riser
@@ Line 51: / Line 51: @@
 | '''6585''' || PC 350 || Pentium 60/66 MHz || Intel 430LX ||
 |-
-| '''6586''' || PC 350 || Pentium P54C 75–100 MHz || Intel 430FX (Triton) || '''Intel-designed planar''', Intel/AMI BIOS (not IBM SurePath)<ref>https://en.wikipedia.org/wiki/IBM_PC_Series</ref>; up to 128 MB
+| '''6586''' || PC 350 || Pentium P54C 75–100 MHz || Intel 430FX (Triton) || '''Intel-designed planar''', Intel/AMI BIOS (not IBM SurePath)<ref name="s1f0306" />; up to 128 MB
 |-
 | '''6587''' || PC 350 || Pentium P54C 75–200 MHz || Intel 430HX || Up to 192 MB; supports Pentium MMX 233 at 75 MHz BCLK
@@ Line 57: / Line 57: @@
 | '''6598''' || '''PC 360 Model 360''' || Single Pentium Pro 150 / 200 MHz (Socket 8) || Intel 440FX || 6 expansion slots, 6 bays, 4 × 72-pin SIMM up to 128 MB, IBM SurePath BIOS
 |-
-| '''6589''' || '''PC 365''' || '''Dual Pentium Pro 180 / 200 MHz''' (Socket 8) || Intel 82440FX (82441FX PMC + 82442FX DBX + 82371SB PIIX3) || 4 × DIMM-168 EDO unbuffered/registered up to 512 MB, ISA / PCI<ref>https://theretroweb.com/motherboards/s/ibm-pc-365-type-6589</ref>
+| '''6589''' || '''PC 365''' || '''Dual Pentium Pro 180 / 200 MHz''' (Socket 8) || Intel 82440FX (82441FX PMC + 82442FX DBX + 82371SB PIIX3) || 4 × DIMM-168 EDO unbuffered/registered up to 512 MB, ISA / PCI<ref name="sfedbb8" />
 |}
@@ Line 72: / Line 72: @@
 ! MT !! CPU !! Chipset !! Notes
 |-
-| 6561 / 6591 / 6872 || Pentium II Slot 1 || Intel '''440LX''' (Balboa), 66 MHz FSB ||<ref>https://theretroweb.com/motherboards/s/ibm-pc-300-type-6561,-6591,-6872</ref>
+| 6561 / 6591 / 6872 || Pentium II Slot 1 || Intel '''440LX''' (Balboa), 66 MHz FSB ||<ref name="sa99af5">[https://theretroweb.com/motherboards/s/ibm-pc-300-type-6561,-6591,-6872 TheRetroWeb &mdash; ibm pc 300 type 6561, 6591, 6872] Community board database.</ref>
 |-
 | 6563 / 6564 / 6574 || Pentium MMX / early P II || Intel 430HX or 440LX || Grouped with PC 300PL 6565 in TIM
 |-
-| 6272 / 6282 / 6284 || Pentium II / III Slot 1 || Intel 440BX || NLX form factor<ref>https://theretroweb.com/motherboards/s/ibm-pc-300gl-type-6272,-6282,-6284</ref>
+| 6272 / 6282 / 6284 || Pentium II / III Slot 1 || Intel 440BX || NLX form factor<ref name="s6355f7">[https://theretroweb.com/motherboards/s/ibm-pc-300gl-type-6272,-6282,-6284 TheRetroWeb &mdash; ibm pc 300gl type 6272, 6282, 6284] Community board database.</ref>
 |-
 | 6268 / 6278 / 6288 || Pentium II / Celeron || Intel 440BX or 440LX || 1999 datasheet
 |-
-| '''6275 / 6285''' || '''Celeron 333 / 366 / 433 (PPGA)''' || Intel '''440BX''' AGP || 66 MHz FSB only, '''non-parity SDRAM only''', 2 DIMM slots up to 256 MB, S3 Trio3D 2 / 4 MB SGRAM AGP integrated, Ultra ATA, 10/100 Ethernet, 2 × USB<ref>http://ps-2.kev009.com/pccbbs/commercial_desktop/glcel323.pdf</ref>
+| '''6275 / 6285''' || '''Celeron 333 / 366 / 433 (PPGA)''' || Intel '''440BX''' AGP || 66 MHz FSB only, '''non-parity SDRAM only''', 2 DIMM slots up to 256 MB, S3 Trio3D 2 / 4 MB SGRAM AGP integrated, Ultra ATA, 10/100 Ethernet, 2 × USB<ref name="s9c5552">[http://ps-2.kev009.com/pccbbs/commercial_desktop/glcel323.pdf kev009.com — IBM PS/2 and PC document mirror &mdash; glcel323]</ref>
 |-
-| 6263 / 6265 || PC 300 Celeron / Pentium II ||  ||<ref>https://theretroweb.com/motherboards/s/ibm-pc300-type-6263,-6265,-6275,-6285</ref>
+| 6263 / 6265 || PC 300 Celeron / Pentium II ||  ||<ref name="s03600c">[https://theretroweb.com/motherboards/s/ibm-pc300-type-6263,-6265,-6275,-6285 TheRetroWeb &mdash; ibm pc300 type 6263, 6265, 6275, 6285] Community board database.</ref>
 |-
-| 6277 / 6287 || Pentium II / III || Intel 440LX / BX ||<ref>https://theretroweb.com/motherboards/s/ibm-pc-300-type-6277,-6287-pentium-ii-penti</ref>
+| 6277 / 6287 || Pentium II / III || Intel 440LX / BX ||<ref name="s13c09d">[https://theretroweb.com/motherboards/s/ibm-pc-300-type-6277,-6287-pentium-ii-penti TheRetroWeb &mdash; ibm pc 300 type 6277, 6287 pentium ii penti] Community board database.</ref>
 |}
@@ Line 95: / Line 95: @@
 ! MT !! CPU !! Chipset !! Notes
 |-
-| '''6862 / 6892''' || Pentium II 233–450 MHz, Pentium III 450–866 MHz (officially up to 550 MHz, up to 800 / Coppermine confirmed with BIOS update; Tualatin 1.3 GHz reported via PowerLeap adapter) || Intel '''440LX''' family || '''NLX form factor''', AGP 2× at offset position (requires NLX-compatible video card), 3 × PCI + 2 × ISA via riser, '''384 MB official / 512 MB unofficial PC100 SDRAM''', S3 Trio3D 2 MB SGRAM AGP integrated, Crystal CS4235-KQ audio, '''Alert on LAN''', Wake on LAN, '''10/100 PCI Ethernet'''<ref>https://ancientelectronics.wordpress.com/2020/11/21/ibm-pl300-type-6862/</ref><ref>http://ps-2.kev009.com/pccbbs/commercial_desktop/glpiii32.pdf</ref>
+| '''6862 / 6892''' || Pentium II 233–450 MHz, Pentium III 450–866 MHz (officially up to 550 MHz, up to 800 / Coppermine confirmed with BIOS update; Tualatin 1.3 GHz reported via PowerLeap adapter) || Intel '''440LX''' family || '''NLX form factor''', AGP 2× at offset position (requires NLX-compatible video card), 3 × PCI + 2 × ISA via riser, '''384 MB official / 512 MB unofficial PC100 SDRAM''', S3 Trio3D 2 MB SGRAM AGP integrated, Crystal CS4235-KQ audio, '''Alert on LAN''', Wake on LAN, '''10/100 PCI Ethernet'''<ref name="s383b0b">[https://ancientelectronics.wordpress.com/2020/11/21/ibm-pl300-type-6862/ Ancient Electronics &mdash; ibm pl300 type 6862]</ref><ref name="s891989">[http://ps-2.kev009.com/pccbbs/commercial_desktop/glpiii32.pdf kev009.com — IBM PS/2 and PC document mirror &mdash; glpiii32]</ref>
 |-
-| 6562 / 6592 || Pentium MMX || Intel 430HX (Triton II) || Socket 7<ref>https://theretroweb.com/motherboards/s/ibm-pc-300pl-type-6562,-6592</ref>
+| 6562 / 6592 || Pentium MMX || Intel 430HX (Triton II) || Socket 7<ref name="sb14be0">[https://theretroweb.com/motherboards/s/ibm-pc-300pl-type-6562,-6592 TheRetroWeb &mdash; ibm pc 300pl type 6562, 6592] Community board database.</ref>
 |-
 | 6565 || Pentium II Slot 1 || ||
@@ Line 110: / Line 110: @@
 ! MT !! CPU !! Chipset !! Notes
 |-
-| '''6588''' || Pentium MMX 233 MHz '''or''' Pentium II Klamath 233 / 266 / 300 MHz '''only''' || Intel '''440FX''' || No 100 MHz FSB; Klamath 2.8 V only, '''no Deschutes''' due to VRM; 4 × 168-pin '''unbuffered 3.3 V EDO DIMM''' 60 ns (SDRAM physically fits but does not work); S3 Trio64V2/DX 2 MB integrated, PCI-only (no AGP)<ref>https://ancientelectronics.wordpress.com/2021/12/16/ibm-pc-300xl-model-6588/</ref>
+| '''6588''' || Pentium MMX 233 MHz '''or''' Pentium II Klamath 233 / 266 / 300 MHz '''only''' || Intel '''440FX''' || No 100 MHz FSB; Klamath 2.8 V only, '''no Deschutes''' due to VRM; 4 × 168-pin '''unbuffered 3.3 V EDO DIMM''' 60 ns (SDRAM physically fits but does not work); S3 Trio64V2/DX 2 MB integrated, PCI-only (no AGP)<ref name="s649b81" />
 |}
@@ Line 120: / Line 120: @@
 # '''Pentium II / III NLX era''' (6862, 6892, 6275, 6285, 6272, 6282, 6284) — Intel 440LX / 440BX, AGP.
-The '''SurePath BIOS''' (IBM's Phoenix-derived BIOS brand) runs across the bulk of the family except the '''6586''', which uses an Intel-designed planar with '''Intel / AMI BIOS''' instead.<ref>https://en.wikipedia.org/wiki/IBM_PC_Series</ref>
+The '''SurePath BIOS''' (IBM's Phoenix-derived BIOS brand) runs across the bulk of the family except the '''6586''', which uses an Intel-designed planar with '''Intel / AMI BIOS''' instead.<ref name="s1f0306" />
 == Memory Topology ==
@@ Line 141: / Line 141: @@
 |}
-'''The DIMM keying notch on the 6577 / 6587 / 6588 boards is for EDO, not SDRAM.''' Physically possible to insert a modern SDRAM DIMM in a 3.3 V EDO slot (won't work, low risk of damage) or to force a 5 V EDO module in a 3.3 V slot (potentially damaging).<ref>https://ancientelectronics.wordpress.com/2021/12/16/ibm-pc-300xl-model-6588/</ref>
+'''The DIMM keying notch on the 6577 / 6587 / 6588 boards is for EDO, not SDRAM.''' Physically possible to insert a modern SDRAM DIMM in a 3.3 V EDO slot (won't work, low risk of damage) or to force a 5 V EDO module in a 3.3 V slot (potentially damaging).<ref name="s649b81" />
 == Storage ==
-All PC 300 family planars use '''on-planar IDE / ATA''' (primary IDE channel; later boards add a secondary channel for the CD-ROM). The 6275 / 6285 / 6862 / 6892 generation supports '''Ultra ATA (UDMA-33)'''.<ref>http://ps-2.kev009.com/pccbbs/commercial_desktop/glcel323.pdf</ref> Optional IBM PCI SCSI adapters were available for PC 300PL and PC 365 (with 1.2–30 GB IBM SCSI drives).<ref>https://en.wikipedia.org/wiki/IBM_PC_Series</ref>
+All PC 300 family planars use '''on-planar IDE / ATA''' (primary IDE channel; later boards add a secondary channel for the CD-ROM). The 6275 / 6285 / 6862 / 6892 generation supports '''Ultra ATA (UDMA-33)'''.<ref name="s9c5552" /> Optional IBM PCI SCSI adapters were available for PC 300PL and PC 365 (with 1.2–30 GB IBM SCSI drives).<ref name="s1f0306" />
 == Graphics ==
@@ Line 151: / Line 151: @@
 * '''PC 300XL 6588''' — integrated S3 Trio64V2/DX 2 MB only.
 * '''PC 300GL Celeron 6275 / 6285''' — integrated S3 Trio3D 2 / 4 MB SGRAM AGP.
-* '''PC 300PL 6862 / 6892''' — integrated S3 Trio3D 2 MB SGRAM AGP; '''NLX-offset AGP slot''' requires NLX-compatible video card with high-mounted output connector.<ref>https://ancientelectronics.wordpress.com/2020/11/21/ibm-pl300-type-6862/</ref>
+* '''PC 300PL 6862 / 6892''' — integrated S3 Trio3D 2 MB SGRAM AGP; '''NLX-offset AGP slot''' requires NLX-compatible video card with high-mounted output connector.<ref name="s383b0b" />
 * '''Late PC 300PL Pentium III''' — options included S3 Savage4, Matrox MGA-G200 / G400, ATI Rage IIC / Pro, NVIDIA TNT2 M64 32 MB.
@@ Line 158: / Line 158: @@
 == System Management (PC 300PL) ==
-The PC 300PL 6862 / 6892 supports IBM's '''Alert on LAN''' (monitors voltage, fan, temperature), '''Wake on LAN''', and DMI. The 10/100 PCI Ethernet adapter supports Wake-on-LAN via a small auxiliary cable from the Ethernet card to the planar AOL header. The PSU has a '''standby rail''' that powers the Ethernet adapter when the system is otherwise off.<ref>http://ps-2.kev009.com/pccbbs/commercial_desktop/glpiii32.pdf</ref>
+The PC 300PL 6862 / 6892 supports IBM's '''Alert on LAN''' (monitors voltage, fan, temperature), '''Wake on LAN''', and DMI. The 10/100 PCI Ethernet adapter supports Wake-on-LAN via a small auxiliary cable from the Ethernet card to the planar AOL header. The PSU has a '''standby rail''' that powers the Ethernet adapter when the system is otherwise off.<ref name="s891989" />
 == Power Supplies ==
-* '''6862 / 6892''' — NLX-style PSU with '''20-pin main connector''' landing on the riser card.<ref>https://www.ibm.com/support/pages/20-pin-main-power-supply-connection-ibm-intellistation</ref>
+* '''6862 / 6892''' — NLX-style PSU with '''20-pin main connector''' landing on the riser card.<ref name="s145c43">[https://www.ibm.com/support/pages/20-pin-main-power-supply-connection-ibm-intellistation IBM Support &mdash; 20 pin main power supply connection ibm intellistation]</ref>
-* '''6588''' — AT form-factor PSU with auxiliary connectors to motherboard and riser.<ref>https://ancientelectronics.wordpress.com/2021/12/16/ibm-pc-300xl-model-6588/</ref>
+* '''6588''' — AT form-factor PSU with auxiliary connectors to motherboard and riser.<ref name="s649b81" />
 Specific per-MT wattages are in the per-machine HMM PDF.
@@ Line 171: / Line 171: @@
 '''IBM SurePath BIOS''' (Phoenix-derived) on most of the family. Exceptions:
-* '''6586''' — Intel-designed planar uses '''Intel / AMI BIOS''' (not SurePath).<ref>https://en.wikipedia.org/wiki/IBM_PC_Series</ref>
+* '''6586''' — Intel-designed planar uses '''Intel / AMI BIOS''' (not SurePath).<ref name="s1f0306" />
 [[File:IBM PC 300PL 6892 BIOS startup.jpg|right|thumb|320px|IBM PC 300PL Type 6892 BIOS startup screen (IBM SurePath BIOS). (Image: Wikimedia Commons, Public domain)]]
-A BIOS update to the latest IBM image is required to enable '''Pentium III Coppermine 800 MHz''' on the 6862 / 6892 — the original sticker only certifies up to 550 MHz.<ref>https://ancientelectronics.wordpress.com/2020/11/21/ibm-pl300-type-6862/</ref> '''PowerLeap adapter''' field reports document Tualatin 1.3 GHz support on 6862 with an updated BIOS.
+A BIOS update to the latest IBM image is required to enable '''Pentium III Coppermine 800 MHz''' on the 6862 / 6892 — the original sticker only certifies up to 550 MHz.<ref name="s383b0b" /> '''PowerLeap adapter''' field reports document Tualatin 1.3 GHz support on 6862 with an updated BIOS.
 == Common Faults ==
-* '''CHHSI capacitor plague on PC 300PL 6862 / 6892''' — '''560 µF 25 V CHHSI-branded electrolytics''', date codes 1998–1999 (typically WG(M) series), around the VRM and CPU power filtering, are documented as failing. Community recommendation is to replace every CHHSI on the board even if visually fine.<ref>https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-desktop-motherboards-graphics-cards-and-pc-peripherals/86515-ibm-300pl</ref>
+* '''CHHSI capacitor plague on PC 300PL 6862 / 6892''' — '''560 µF 25 V CHHSI-branded electrolytics''', date codes 1998–1999 (typically WG(M) series), around the VRM and CPU power filtering, are documented as failing. Community recommendation is to replace every CHHSI on the board even if visually fine.<ref name="s4729cd">[https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-desktop-motherboards-graphics-cards-and-pc-peripherals/86515-ibm-300pl Badcaps forum &mdash; 86515 ibm 300pl] Community forum thread; a first-hand report, not a manufacturer document.</ref>
 * '''CR2032 RTC battery''' — all PC 300 generations use a socketed CR2032 (no soldered NiCd).
-* '''CMOS auto-prompt on settings change''' on PC 350 / 300XL — '''any''' configuration change including unplugging the mouse triggers a "press F1 for setup" prompt.<ref>https://ancientelectronics.wordpress.com/2021/12/16/ibm-pc-300xl-model-6588/</ref>
+* '''CMOS auto-prompt on settings change''' on PC 350 / 300XL — '''any''' configuration change including unplugging the mouse triggers a "press F1 for setup" prompt.<ref name="s649b81" />
 * '''EDO vs SDRAM DIMM keying confusion''' on 6577 / 6587 / 6588 / 6589.
-* '''Bundled IBM G51 CRT monitor overheating''' (MT 6541-Q0E/G/N/S, 6541-02E/N/S) — '''US CPSC recall''' documented.<ref>http://web.archive.org/web/20030803071351/https:/www.cpsc.gov/cpscpub/prerel/prhtml03/03088.html</ref>
+* '''Bundled IBM G51 CRT monitor overheating''' (MT 6541-Q0E/G/N/S, 6541-02E/N/S) — '''US CPSC recall''' documented.<ref name="sb36999">[http://web.archive.org/web/20030803071351/https:/www.cpsc.gov/cpscpub/prerel/prhtml03/03088.html Internet Archive Wayback Machine &mdash; 03088] Archived copy; the original page is gone.</ref>
 * '''Coppermine boot blocker''' on 6862 / 6892 without BIOS update.
@@ Line 223: / Line 223: @@
 * [[IBM PC Series 300 Capacitor Replacement Guide]]
 * [[IBM PS/ValuePoint]] — predecessor
-* [[IBM NetVista]] — successor (PC Series brand replacement)
+* IBM NetVista — successor (PC Series brand replacement)
 * [[IBM IntelliStation]] — Pentium Pro / Xeon workstation sibling
 * [[Capacitor Failure Symptoms]]
+* '''IBM documentation hosted here:''' [[IBM Hardware Maintenance Manual Types 6826 8317 8318 8319 (Aptiva)]] &mdash; the hardware maintenance manual for IBM's next generation of desktops, types 6826, 8317, 8318 and 8319 (December 2002).
 == References ==
+<references />
+=== Further reading ===
 * [https://en.wikipedia.org/wiki/IBM_PC_Series IBM PC Series — Wikipedia]. Family overview, launch / discontinuation dates, model-number era to suffix-brand era transition.

IBM PC Series 300: Difference between revisions

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