Processor Board Matrix (90, 95)
8590/9590 The ID sticker is on the lower right front corner of the case.
8595/9585/9595 The ID sticker is right below the power switch on the front of the case.
Using the System Programs
(Refdisk or System Partition)
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.
Complex Type links take you to the page for that type.
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 128KB L2 cache
9 Type 4 Pentium have 256KB L2 cache
10 71G6197 586-66 Transitional Q [Suzie Q]
* The Type 4 486DX2-66 ["N"] Sub Models are 43  / 42  / 44 [95A]
** All Type 4 Pentiums share the same Sub Models, 45  / 46  / 47 [95A].
WBST fixed some errata.
0Ku Type 1 486DX2-33/66 [Flash based, probably for RAID