Memory Dimm Present Detect Bits (Pd-Bits) - IBM 265 Service Manual

Memory DIMM Present Detect Bits (PD-Bits)

The following table expands on the Memory Error Notes found on page 120, where yy
is the PD value in the table below and xxx are the last three digits of the error code.
Use these values to identify the type of memory that generated the error.
If you replace FRUs or perform an action, and the problem is still not corrected, go to
"MAP 1540: Minimum Configuration" on page 59 unless otherwise indicated in the
tables.
Table 4. Memory DIMM PD bits
PD value
28
2A
38
3A
48
4A
58
5A
68
6A
Note: Memory DIMMs must be installed in pairs.
Size Clock Cycle (nsecs)
512 MB
512 MB
128 MB
128 MB
64 MB
64 MB
32 MB
32 MB
256 MB
256 MB
Parity/ ECC
10
8
10
8
10
8
10
8
10
8
Chapter 5. Error Code to FRU Index
ECC
ECC
ECC
ECC
ECC
ECC
ECC
ECC
ECC
ECC
169