Failing Memory Modules on Mod. 90 / 95

Looted from the MCA Enthusiast's Page. The original is here.

Assumed you get a memory error in the Format 0002XXSY you could find out the failing module with this chart below.
The -X- in the error-code can be any number, -S- marks the position of the memory socket, -Y- determines the module type, size and access-speed.
 


S: Values for the Module Location
S
90 (Riser)
85 / 95
0
Configuration Mismatch. Run setup
1 J1 (J11) A1
2 J2 B1
3 J3 A2
4 J4 B2
5 J1 (J14) A3
6 J2 B3
7 J3 A4
8 J4 B4
C Any
U Unknown
*) If the value for Y=Z there might be no valid module or no module at all installed.
For details see Here !

Y: Values for Memory Type, Size and Speed
Y Type Size Speed
0 Parity 4 MB 80 ns
1 Parity 2 MB 100 ns
2 Parity 1 MB 100 ns
4 Parity 4 MB 70 ns
5 Parity 2 MB 85 ns
6 Parity 1 MB 85 ns
8 Parity 8 MB 80 ns
9 Parity 2 MB 80 ns
A Parity 16 MB 70 ns
B Parity 8 MB 70 ns
C Parity 2 MB 70 ns
D Parity 2 MB 120 ns
E Parity 1 MB 120 ns
K ECC 16 MB 70 ns
Q ECC 4 MB 70 ns
R ECC 32 MB 70 ns
S ECC 8 MB 70 ns
T ECC 2 MB 70 ns
Z Unknown

Feel free to contact me to report errors, experiences,
missing adapters and their ADFs.
I'm collecting any ADF or entire option disks I can get.

© 1998 by Peter H. Wendt / pw-software production