Memory DIMM Present Detect Bits (PD-Bits)The following table expands on the Memory Error Notes found on page 126, whereyyis the PD value in the table below andxxx 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 63 unless otherwise indicated in thetables.Table 4. Memory DIMM PD bitsPD value Size Clock Cycle (nsecs) Parity/ ECC28 512 MB 10 ECC2A 512 MB 8 ECC38 128 MB 10 ECC3A 128 MB 8 ECC48 64 MB 10 ECC4A 64 MB 8 ECC58 32 MB 10 ECC5A 32 MB 8 ECC68 256 MB 10 ECC6A 256 MB 8 ECCNote: Memory DIMMs must be installed in pairs.176 Service Guide
