Compaq ProLiant 2500 Maintenance And Service Manual page 40

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The following guidelines MUST be followed when installing or replacing memory:
The following table shows typical memory configurations for Compaq ProLiant 2500 and
2500R Servers with the Pentium Pro processor.
Use only 32-, 64-, 128-, or 256-megabyte; EDO- or FASTPAGE-buffered; 4-K
refreshed DIMMs.
DIMMs must be 60-ns or faster.
CAUTION: Use only Fast-Page/EDO Mode 72-Bit Wide JEDEC
standard DIMMs
using 3.3 volts and ECC capability. Use EDO-buffered DIMMs.
Non-compatible DIMMs may adversely affect data integrity.
NOTE: The specific DIMM bit pattern required to support error
checking and correcting (ECC) memory is based on the
parity scheme; one byte data, one bit parity. The data byte
and parity are constructed of DRAMs that are "n" locations
deep by 4-bits wide or 1-bit wide and "n" can be any
number. (That is, "n" locations deep x 4-bits wide or "n"
locations deep x 1-bit wide.) Use only Compaq DIMMs or
JEDEC-compliant DIMMs that conform to this parity scheme.
Examples of DIMM Upgrade Combinations
Total Memory Slot 1
32 MB 32 MB
64 MB 32 MB
64 MB 64 MB
96 MB 64 MB
96 MB 32 MB
256 MB 128 MB
256 MB 64 MB
512 MB 128 MB
512 MB 256 MB
768 MB 256 MB
1.024 GB 256 MB
Table 2-2
Slot 2
32 MB
32 MB
32 MB
128 MB
64 MB
128 MB
256 MB
256 MB
256 MB
Compaq ProLiant 2500 Family of Servers Maintenance and Service Guide
Slot 3 Slot 4
32 MB
64 MB 64 MB
128 MB 128 MB
128 MB 128 MB
256 MB 256 MB
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