Ardent Tool of Capitalism

The go-to place for all PS/2 and Micro Channel addicts. MAD Edition!
Reference
Material		 Software
& Drivers		 IBM
Systems		 Non-IBM
Systems		 MCA
Adapters		 Parts &
Technology		 Setup &
Config

Processor Complex Identification

Type 0 | Type 1 | Type 2 | Type 3 | Type 4

Base 0 / Type 0 Refdisk + Diags
-x0x "0 Minus" 386DX 20 MHz, FRU P/N 64F0782, FCC ID ANO386201A [P]
No L2 cache
Supports 1, 2 MB 85 ns (80 ns?)
8 MB FPM max (?), 24-bit DMA
-x0x 386DX 20 MHz, FRU P/N 04G3884, FCC ID ANO38620C1A [P]
64 KB 25 ns L2 cache
Supports 1, 2 MB 85 ns (80 ns?)
8 MB FPM max (?), 24-bit DMA

Base 1 / Type 1 Refdisk | Diags | BIOS
-xGx 486SX 20 MHz, FRU P/N 92F0049, FCC ID ANOIBM486A20 [P]
No L2 cache connector
2, 4, 8 MB 70 ns FPM matched pairs
64 MB FPM max, 24-bit DMA
Some with bad DMA controller
-xJx 486DX 25 MHz, FRU P/N 64F0201, 84F8036, FCC ID ANOIBM486A25
-xKx 486DX 33 MHz, FRU P/N 64F0198, 84F9356, FCC ID ANOIBM486A33 [P] [P]
2, 4, 8 MB FPM matched pairs
64 MB FPM max, 24-bit DMA
Some with bad DMA controller
Optional 256 KB 17 ns WT L2 cache
(L2 board FRU P/N 6451095, 64F0199)
Upgrade DX-50 486DX 50 MHz, FRU P/N 92F0048, FCC ID ANOIBM486A50
2, 4, 8 MB FPM matched pairs
64 MB FPM max, 24-bit DMA
Some with bad DMA controller
Standard 256 KB 15 ns WT L2 cache
(L2 board FRU P/N 92F0050)
Upgrade DX2-66 486DX2 66 MHz, FRU P/N 92F0145, FCC ID ANOIBM486B33
2, 4, 8 MB FPM matched pairs
64 MB FPM max
Optional 256 KB 17 ns WT L2 cache
(L2 board FRU P/N 6451095, 64F0199)
Flash based, supports >1 GB IML
Base 2 / Type 2 Refdisk | Diags | BIOS
-xHx 486SX 25 MHz, FRU P/N 92F0079, FCC ID ANOIBM486SXB25 (same as xLx) [P] [P]
No L2 cache
2, 4, 8 MB 70 ns FPM SIMMs
FPM single, matched, mixed pairs
64 MB FPM max, 24-bit DMA
Some with bad DMA controller
-xLx 486DX2 50 MHz, FRU P/N 92F0161, FCC ID ANOIBM486SXB25 (same as xHx) [P]
No L2 cache
2, 4, 8 MB 70 ns FPM SIMMs
FPM single, matched, mixed pairs
64 MB FPM max, 24-bit DMA
Some with bad DMA controller
Base 3 / Type 3 Refdisk | Diags | BIOS
-xMx 486DX 50 MHz, FRU P/N 82G2484, 57F1597, FCC ID ANOIBM486B50 [P]
Two board construction
256 KB L2 WT cache
SIMMs in matched pairs
64 MB ECC -or- FPM max
32-bit DMA
Some with bad streamer support
Base 4 / Type 4 Refdisk | Diags | BIOS
-xNx 486DX2 66 MHz, FRU P/N 61G2343, FCC ID ANOIBM486C33 [P] [P]
128 KB L2 WB cache
169-pin Socket (LIF, 5 V)
SIMMs matched pairs
64 MB FPM -or- 256 MB ECC max
32-bit DMA
SynchroStream Controller
-xPx Pentium 60 MHz, FRU P/N 52G9362, 06H7324, FCC ID ANOIBM586A60 [P] [P]
-xQx Pentium 66 MHz, FRU P/N 92F0120, 06H7317, FCC ID ANOIBM586A66 [P] [P]

Revised board layout (xQx only?) [P] [P]

256 KB L2 WB cache
Socket 4 (LIF, 5 V)
SIMMs in matched pairs
64 MB FPM -or- 256 MB ECC max
32-bit DMA
SynchroStream Controller
-xYx Pentium 90 MHz, FRU P/N 06H3739, 06H7095, FCC ID ANO6H3729 [P] [P]
256 KB L2 WB cache
Socket 5 (LIF, 3.3 V)
SIMMs in matched pairs
64 MB FPM -or- 256 MB ECC max
32-bit DMA
SynchroStream Controller
None of the above? Also see Japanese PS/55 Processor Complexes.

Content created and/or collected by:
Louis Ohland, Peter Wendt, David Beem, William Walsh, Tatsuo Sunagawa, Jim Shorney, Tim Clarke, Kevin Bowling, Tomáš Slavotínek, and many others.

Ardent Tool of Capitalism - MAD Edition! is maintained by Tomáš Slavotínek.
Last update: 03 Jun 2023 - Changelog | Legal Info & Contact