Complex Sub-Model Matrix

Location of Type-Model Sticker

8590/9590/5560 - The ID sticker is on the lower right front corner of the case.
8595/9595 - The ID sticker is right below the power switch on the front of the case.

Using the System Programs (Refdisk or System Partition)

Go to the System Programs Main Menu and select Display revision levels (you might have to select More utilities first). Note the submodel code displayed on the screen.

Read the FRU number printed near the card-edge of the processor board. Look for a second label (marked P1 - PC) to the right of the front serial number of the system. The second label indicates that the processor board has been upgraded.

Mod.
Suffix
Submodel (per-planar) Processor Board
FRU and Description
2nd
Label
90 8595 9595 5560
Base 0 / Type 0
n0n 15 1A N/A N/A 64F0782 386DX-20 0KB L2
40x 17 12 N/A N/A 04G3884 386DX-20 64KB L2
Base 1 / Type 1
0Gx 2D 2C N/A N/A 92F0049 486SX-20 [Pins 2-3] 1
0Gx 2F 2E N/A N/A 92F0049 487SX-20 [Pins 1-2] 2 P4
0Jx 11 14 N/A N/A 64F0201 486DX-25 P1
0Kx 13 16 N/A N/A 64F0198 486DX-33 P2
0Mu 2B 2A N/A N/A 92F0048 Upgrade 486DX-50 3 P3
0Ku 37 36 N/A N/A 92F0145 Upgrade 486DX2-33/66 4
60-W0x N/A 14 N/A 93? 79F0087 (Jap) 486DX-25
80-Yxx N/A 16 N/A 94? 79F2458 (Jap) 486DX-33
Base 2 / Type 2
0Hx 57 58 N/A 9F 92F0079 / 95F4299 (Jap) 486SX-25 5 P5
0Hx 59 5A N/A 90 92F0079 / 95F4299 (Jap) 487SX-25 6 P6
0Hx 5B 5C N/A 92 92F0079 / 95F4299 (Jap) 486DX2-25/50 7 P8
0Lx 3F 40 N/A N/A 92F0161 486DX2-25/50 P7
60-Nxx N/A N/A N/A A6? 35G2765 (Jap) 486DX2-33/60
Base 3 / Type 3
0Mx 29 28 N/A N/A 82G2484/57F1597 486DX-50 P8
Base 4 / Type 4
0Nx * 43 42 44 N/A 61G2343 486DX2-33/66 8 PB
0Px ** 45 46 47 N/A 52G9362 586-60 9 PC
0Qx ** 45 46 47 N/A 92F0120/71G6197 586-66 9, 10 PE
0Yx ** 45 46 47 N/A 06H3739 586-90 9

Notes and Comments

N/A - "Not Applicable" - complex not supported on the planar

1) 92F0049 486SX-20 [Pins 2-3]. 486SX-20 processor
2) 92F0049 487SX-20 [Pins 1-2]. 487SX-20 processor
3) 92F0048 Upgrade straight 486DX-50
4) 92F0145 Upgrade 486DX2-33/66
5) 92F0079 486SX-25
6) 92F0079 487SX-25
7) 92F0079 486DX2-25/50
8) Type 4 DX2-66 has 128 KB L2 cache
9) Type 4 Pentium have 256 KB L2 cache
10) 71G6197 586-66 Transitional Q [Suzie Q]

* The Type 4 486DX2-66 ["N"] Sub Models are 43 [90] / 42 [95] / 44 [95A]
** All Type 4 Pentium boards share the same Sub Models, 45 [90] / 46 [95] / 47 [95A].

0Ku Type 1 486DX2-33/66 (Flash based, probably for RAID systems)
0Mu Type 1 straight 486DX-50 that supports ECC (single board 486DX-50)

Sources

PS/2 HMM, Third Edition (Oct 1994) (page 141 phys.)
System ROM images

Content created and/or collected by:
Louis Ohland, Peter Wendt, William Walsh, David Beem, 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: 19 Nov 2021 - Changes & Credits | Legal Info & Contact