IBM PS/ValuePoint
The IBM PS/ValuePoint is a family of IBM desktop and mini-tower computers built on the ISA bus, announced on 20 October 1992. The models used IDE disks and SVGA on the system board, and from April 1993 a VESA local bus video controller; the 1993 P60/D and the 1994 Performance Series added PCI. The last models were withdrawn in August 1995.[1]
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 | |
| PS/ValuePoint 325T desktop | |
| Specifications | |
|---|---|
| Manufacturer | IBM |
| Type | Desktop and mini-tower personal computers (ISA, VESA local bus, PCI) |
| Released | 20 October 1992 |
| Discontinued | Last models withdrawn August 1995 |
| CPU | IBM 386SLC-25; Intel 486SX-25/33, 486DX-33, 486DX2-50/66, DX4-100; Pentium 60 |
| Memory | 2 MB to 16 MB (325T); up to 32 MB on 30-pin SIMMs (1992 486 models); up to 64 MB or 128 MB on 72-pin parity SIMMs (later models) |
| Storage | 3.5-inch 1.44 MB diskette; IDE fixed disk (Enhanced IDE on the 1994 Performance Series) |
| Display | SVGA on the system board: Cirrus Logic CL-GD5422 or GD5428, Tseng ET4000 or ET4000/W32, S3 86C805 or Vision864, ATI 68800AX |
| Sound | Beeper or speaker |
| OS / Firmware | Preloaded IBM DOS 5.02, 6.1 or 6.3 with Windows 3.1 or 3.11, or OS/2 2.0, 2.1 or 2.11 |
| Model no. | 6381, 6382, 6384, 6387; Performance Series 6472, 6482, 6484, 6492, 6494 |
Models
IBM's reference sheets group the ValuePoint models by announcement:[1]
| Group | Types | Processors | Video | Memory | Announced | Withdrawn |
|---|---|---|---|---|---|---|
| 1992 models (325T, 425SX, 433DX, 466DX2) | 6384 | 386SLC-25; 486SX-25, 486DX-33, 486DX2-66 | CL-GD5422 (325T); ET4000 (486 models), ISA | 325T 2-16 MB on 72-pin SIMMs; 486 models 4-32 MB on 30-pin SIMMs | October 1992, January 1993 | July 1993 |
| Spring 1993 (/S, /D, /T) | 6382, 6384, 6387 | 486SX-25/33, 486DX-33, 486DX2-66 | S3 86C805, VESA local bus | 4-64 MB, 72-pin | April and May 1993 | December 1993 |
| Si | 6381 | 486SX-25, 486DX-33, 486DX2-66 | CL-GD5428 (425SX/Si); ET4000/W32 (others), VESA local bus | 4-64 MB, 72-pin | July and October 1993 | November 1994 |
| Fall 1993 (/D, /T) | 6384, 6387 | 486SX-25/33, 486DX-33, 486DX2-50/66 | S3 86C805, VESA local bus | 4-64 MB, 72-pin | October 1993 | December 1994 |
| P60/D | 6384 (models 189, 193, 199, 1A3, 1A9) | Pentium 60 | ATI 68800AX, PCI | 8-128 MB, 72-pin, in pairs | October 1993, July 1994 | April 1995 |
| Performance Series (/Sp, /Dp, /Tp) | 6472, 6482, 6484, 6492, 6494 | 486SX-33, 486DX-33, 486DX2-50/66, DX4-100 | S3 Vision864, VESA local bus 2.0 | 4-128 MB, 72-pin | May 1994 to April 1995 | December 1994 and August 1995 |
The suffix gives the case: Si for the 6381 SpaceSaver Introductory and /S for the 6382 SpaceSaver (both three slots and three bays), /D for the 6384 desktop (five slots, five bays) and /T for the 6387 mini-tower (eight slots, six bays). The 1992 models used the 6384 desktop case.[1][2]
Processor upgrades
The 1992 425SX took a 486DX2-50 upgrade in an open 169-pin socket, and the 433DX a 486DX2-66 in place of the processor. The Spring and Fall 1993 486 models have a 238-pin ZIF socket that takes faster 486 processors and Intel's P24T Pentium OverDrive; the P60/D has a 273-pin ZIF socket that IBM listed for "future Intel Pentium OverDrive processors"; and the Performance Series has a 237-pin socket (Intel Socket 3). IBM notes that the Performance Series does not support the IntelDX4 OverDrive because of cache and IDE timing incompatibilities.[1] IBM's system information for the 466DX2/D says the P24T-83 OverDrive needs BIOS level 68 or later, with the processor jumpers moved to the OD position: J10 and J11 on Type 1 system boards, J17 and J18 on Type 2 boards.[3]
System boards
The 486 system boards of the /S, /D and /T models exist in two versions. Type 1 boards have a write-through L2 cache and Type 2 boards a write-back cache. With the ports facing away from you, the SIMM sockets of a Type 1 board run from left to right and those of a Type 2 board from front to back.[3] IBM's parts list gives separate FRUs for each, for example 92F0394 (Type 1) and 61G3215 (Type 2) for the 425SX/S and /D.[2]
| Board | Cache | Memory | Video memory |
|---|---|---|---|
| 6384 325T | None | 2 MB soldered and two 72-pin sockets, 70-85 ns, 16 MB maximum | 1 MB soldered |
| 6384 425SX, 433DX, 466DX2 (1992) | 128 KB on the 433DX and 466DX2, not upgradeable; none on the 425SX | Two banks of four 30-pin sockets, 70 or 80 ns, 1 MB or 4 MB modules, 32 MB maximum | 1 MB soldered |
| 6381 SX | None | Four 72-pin sockets, 70 ns parity, 64 MB maximum | 512 KB, sockets for 1 MB |
| 6381 DX and DX2 | Upgradeable to 128 KB or 256 KB | Four 72-pin sockets, 70 ns parity, 64 MB maximum | 512 KB, sockets for 1 MB |
| 6382 /S, 6384 /D, 6387 /T | 128 KB or 256 KB; standard on the 466DX2 | Four 72-pin sockets, 70-85 ns, 64 MB maximum | 1 MB soldered, sockets for 2 MB |
| 6384 P60/D | 256 KB | Four 72-pin sockets, 70 ns, 128 MB maximum | 1 MB soldered, sockets for 2 MB |
[2] The 1992 486 models need four identical 30-pin SIMMs as a group, so the only possible memory sizes are 4, 8, 16, 20 and 32 MB.[1] The Si and P60/D boards accept only industry-standard parity SIMMs, not IBM-type parity, and the P60/D needs its SIMMs in matched pairs for its 64-bit memory path.[1]
There is no reference diskette. The configuration utility is in the BIOS and is started by pressing F1 while the machine counts memory at power-on.[1][4]
Power supplies
IBM fitted a 100 W supply to the three-slot 6381 and 6382 models, 145 W to the 1992 6384 models and 200 W to the /D, /T and P60/D models; the Performance Series mini-towers have 250 W. All are universal-voltage supplies with a manual voltage selector switch.[1][2] IBM's troubleshooting guide for the 1992 models gives 10 W as the maximum per adapter slot on the 145 W supply.[4] The HMM parts list gives FRUs 92F0415 (100 W), 52G8741 (145 W) and 92F0411 (200 W).[2]
IBM's supply check, made with the supply connected to the system board: +5 V must read 4.75 to 5.25 V, +12 V 11.4 to 12.6 V, −12 V −10.8 to −13.2 V, and −5 V −4.5 to −5.5 V. If the power light is off or the fan is not turning, check the power cord and the voltage selector first.[2] As an ISA machine the ValuePoint has a −5 V rail, unlike the Micro Channel PS/2 models.
Battery
The clock battery is a CR2032 lithium coin cell, FRU 33F8354; the P60/D has its own lithium battery, FRU 71G6630.[2] It sits at B1 on the 325T board and BT1 on the 486 boards. The 1992 6384 425SX board also has a J2 "External Battery" connector and a JP8 "Battery Select" jumper, and a capacitor C17 used with JP8 to erase the password.[5] David Hall reports a CR2032 that had leaked in one of his 425SX/Si machines.[6]
Storage
The system board has an IDE interface for two drives; the Performance Series has Enhanced IDE on the local bus for four devices, including an IDE CD-ROM.[1] The diskette drive is a 3.5-inch 1.44 MB unit. IBM's troubleshooting guide says 2.88 MB drives do not work on the 1992 6384 models; the P60/D and the Performance Series support a 2.88 MB drive.[4][7][1] IBM's optional SCSI adapters were the 8-bit TMC-850IBM and a 16-bit adapter, both made for IBM by Future Domain.[4] IBM fitted IDE disks of 80, 120, 170, 212, 245, 340, 424 and 527 MB to the 638x models, and 270, 364 and 540 MB to the Performance Series.[1]
Software notes
- IBM's troubleshooting guide records a production change in the video clock chip beside the Tseng video controller, from an ICS part to a Chrontel part. The OS/2 2.00.1 drivers were written for the ICS chip and fail when changing video modes on Chrontel boards; a revised driver fixes it.[4]
- IBM issued a keyboard fix, IBMKBFIX, for keyboard lockups under Windows 3.1 and Windows for Workgroups.[3]
Specifications
| Type | Width × depth × height | Weight |
|---|---|---|
| 6381 and 6382 | 360 × 420 × 122 mm | 8.1 kg |
| 6384 | 404 × 420 × 147 mm | 9.7 kg |
| 6387 | 187 × 429 × 413 mm | 11.4 kg |
Documentation
- PS/ValuePoint Hardware Maintenance Manual, S61G-1423-01, September 1993: IBM PS/ValuePoint Hardware Maintenance Manual (September 1993)
- Type 63XX, 64XX IBM PS/ValuePoint HMM, S61G-1423-02, August 1996: IBM PS/ValuePoint Hardware Maintenance Manual (August 1996)
- PS/ValuePoint Type 6387 Supplement, S71G-1875-00, May 1993: IBM PS/ValuePoint Type 6387 HMM Supplement
- Personal Systems Reference: IBM ValuePoint, 1992 to 1995 – withdrawn: IBM Personal Systems Reference: IBM ValuePoint 1992 to 1995 (withdrawn)
- IBM PS/2 and PS/ValuePoint Subsystems, GG24-4002-00, December 1992: IBM PS2 and PS ValuePoint Subsystems (December 1992)
Gallery
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PS/ValuePoint 325T -
PS/ValuePoint 325T -
System board of a PS/ValuePoint with an Intel 486SX -
PS/ValuePoint logo
Related pages
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 IBM, Personal Systems Reference: IBM ValuePoint, 1992 to 1995 – withdrawn, sheets compiled by Roger Dodson, IBM, October 1993 to December 1995. Hosted on this wiki as File:IBM PSREF IBM ValuePoint 1992 to 1995 Withdrawn.pdf. Model lists, processors and upgrades, cache, memory, video, slots, bays, power supplies, preloaded software, announcement and withdrawal dates for the 1992, Spring 1993, Si, Fall 1993, P60/D and Performance Series models, and the configuration utility "invoked by pressing the F1 key during memory POST".
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 IBM, PS/ValuePoint Hardware Maintenance Manual, S61G-1423-01, third edition, September 1993. Hosted on this wiki as File:IBM PS ValuePoint Hardware Maintenance Manual S61G-1423-01 (September 1993).pdf. Power supply voltage check, p. 6; parts listing (system boards by type, riser cards, CR2032 battery 33F8354 and P60/D battery 71G6630, L2 cache and video memory, 100 W, 145 W and 200 W power supplies, memory modules), pp. 20-22; product description by system board, pp. 32-36; specifications for the 6381, 6382, 6384 and 6387, pp. 37-40.
- ↑ 3.0 3.1 3.2 IBM, "IBM ValuePoint (Type 6384 466DX2/D) – System information", document SWIS-3YSW4U, mirrored at ps-2.kev009.com. Type 1 (write-through) and Type 2 (write-back) system boards and how to tell them apart; L2 cache FRUs 92F0398 and 92F0400; 200 W supply with manual voltage selection, 90-137 V and 180-265 V, 0.08 to 0.52 kVA; P24T-83 OverDrive with BIOS level 68 or later and jumpers J10/J11 or J17/J18; video memory upgrade FRU 60G2951; downloadable files including the keyboard fix for Windows 3.1 and Windows for Workgroups.
- ↑ 4.0 4.1 4.2 4.3 4.4 IBM National Support Center, "IBM ValuePoint – Troubleshooting guide", document JBAR-3QJS5D, version 1.13A.1, March 1993, for the 6384 C, F, M and W models, mirrored at ps-2.kev009.com. Setup with F1 and no reference diskette; lithium battery; 2.88 MB drives do not work; 145 W supply with 10 W maximum per adapter slot; the Future Domain 8-bit TMC-850IBM and 16-bit SCSI adapters; the ICS and Chrontel video clock chips and the OS/2 2.00.1 video driver problem.
- ↑ IBM, "IBM ValuePoint – Type 6384 system board", document GSMH-3CGEGA, mirrored at ps-2.kev009.com. System board component lists for the 6384 325T, 425SX, 433DX and 466DX2 and the 6384 /D Type 1 and Type 2 boards: battery B1 or BT1, external battery connector J2, battery select jumper JP8, password capacitor C17, memory sockets.
- ↑ David Hall, "IBM PS/ValuePoint 425SX/Si", zx.net.nz. Owner's notes on the 6381 425SX/Si: CR2032 battery, one that had leaked, and a leaking capacitor near the power connector on a diskette drive.
- ↑ IBM, "IBM ValuePoint (Type 6384 – P60/D) – System information", document SWIS-3YG25F, mirrored at ps-2.kev009.com. Pentium 60, 256 KB external cache, PCI, 128 MB with four 32 MB SIMMs, 1.44 MB diskette drive that "will support 2.88 drive", ATI 68800AX with 1-2 MB, slot and bay layout, 200 W supply, models 189, 193, 199, 1A3 and 1A9.