HP ProLiant 4500 Compaq ProLiant 4500R Rack-Mountable Servers Maintenance and - Page 24

2-12 Removal and Replacement Procedures NOTE: The Compaq ProLiant 4500R requires that RAM be installed in increments of four SIMMs at a time. The SIMMs must be the same size and speed. The specific SIMM 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 Compaq SIMMs or JEDEC-compliant SIMMs that conform to this parity scheme only. The following table shows typical memory configurations for the Compaq ProLiant 4500R Server. Table 2-2 Example of SIMM Upgrade Combinations Total Memory 16 MB 32 MB 64 MB 64 MB 128 MB 128 MB 128 MB 192 MB 192 MB 256 MB 512 MB 512 MB 1024 MB System Board Bank 1 Bank 2 4x4 MB 4x8 MB 4x8 MB 4x16 MB 4x16 MB 4x8 MB 4x32 MB 4x32 MB 4x16 MB 4x64 MB 4x64 MB 4x32 MB 4x64 MB 4x8 MB 4x16 MB 4x8 MB 4x16 MB 4x16 MB 4x64 MB 4x32 MB 4x64 MB Expansion Board Bank 3 Bank 4 4x8 MB 4x16 MB 4x32 MB 4x64 MB 4x8 MB 4x32 MB 4x64 MB Maintenance and Service Guide