A6969A HP 4-GB DDR Memory Quad (4 x 1GB DIMMs)

A6969A is a 4-GB DDR memory quad of four 1GB DIMMs for the HP Integrity rx4640. HP calls it a 4.0GB DDR-SDRAM memory upgrade kit that includes four 1.0GB, 266MHz, PC2100 DDR-SDRAM DIMM memory modules. The spare module is A6969-69001, a 1.0GB, 266MHz, PC2100 DDR-SDRAM DIMM.

A quad is four DIMMs of equal density, and the rx4640 takes memory only in quads, loaded in the order depicted on the memory carrier board. When quads of different sizes are mixed, the quads with the largest capacity belong in the lowest-numbered slots. Carrier board A9738A holds 4 to 16 DIMMs (1 to 64 GB) and A9739A holds 4 to 32 DIMMs (1 to 128 GB); both deliver 12.8-GB/s memory bandwidth.

For the same server, the 1-GB quad is A6967A, the 2-GB quad is A6968A, the 8-GB quad is A6970A and the 16-GB quad is AB475A. The rx4640 supports up to 128 GB with eight 16-GB quads in A9739A.