AB223A HP 2-GB DDR-SDRAM Memory Pair (2 x 1GB DIMMs)

AB223A is a 2-GB DDR-SDRAM memory pair made up of two 1GB DIMMs, for the HP Integrity rx1600 and the HP Integrity rx1620. The modules are PC2100 ECC registered DDR266A SDRAM. HP calls the option the rx1600 2GB 2x1GB DIMMs SDRAM memory, and the spare for it is A6969-69001, a 1.0GB, 266MHz, PC2100, ECC DDR-SDRAM DIMM memory module.

Both servers have eight DIMM slots and take 16 GB at most, using 2-GB DIMMs. Memory goes in as pairs of equal-density DIMMs, and each pair is loaded across both memory buses with one DIMM on each bus. To support chip sparing, identically sized DIMMs have to be loaded in sets of four, called quads. Total memory bandwidth is 8.5 GB/s, split across two 4.25-GB/s memory buses.

The other pair options for these two servers are AB221A (512 MB, two 256MB DIMMs), AB222A (1 GB, two 512MB DIMMs) and AB224A (4 GB, two 2GB DIMMs). The smallest memory configuration for the servers is 512 MB.