Editing IBM PC Series 300 (section)

== Second-Generation: PC 300GL / 300PL / 300XL (1997–2001) ==

=== PC 300GL (Greenline — entry corporate) ===

{| class="wikitable styled-table" style="width:100%; text-align:center;"
|+'''PC 300GL submodels'''
! 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>
|-
| 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>
|-
| 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>
|-
| 6263 / 6265 || PC 300 Celeron / Pentium II ||  ||<ref>https://theretroweb.com/motherboards/s/ibm-pc300-type-6263,-6265,-6275,-6285</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>
|}

[[File:IBM PC 300GL 6282 front.jpg|center|thumb|320px|IBM PC 300GL Type 6282-81J front view. (Image: Wikimedia Commons, Public domain)]]

=== PC 300PL (Professional — midrange) ===

{| class="wikitable styled-table" style="width:100%; text-align:center;"
|+'''PC 300PL submodels'''
! 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>
|-
| 6562 / 6592 || Pentium MMX || Intel 430HX (Triton II) || Socket 7<ref>https://theretroweb.com/motherboards/s/ibm-pc-300pl-type-6562,-6592</ref>
|-
| 6565 || Pentium II Slot 1 || ||
|}

[[File:IBM PC 300PL 6892 motherboard.jpg|center|thumb|580px|IBM PC 300PL Type 6892-5BJ NLX motherboard. Slot 1, Intel 440LX, integrated S3 Trio3D AGP, Crystal CS4235 audio. (Image: Wikimedia Commons, Public domain)]]

=== PC 300XL (Extended — first Pentium II) ===

{| class="wikitable styled-table" style="width:100%; text-align:center;"
|+'''PC 300XL submodels'''
! 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>
|}