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RamCity guarantees 100% that all modules below are compatible with the HP/Compaq Integrity rx4640

Part #. 4xAGE • DDR-266 / PC2100 • CL2.5 • ECC • Registered • 2.5V • more info

Buy new: $451.99 $352.99

We guarantee your memory upgrade will be 100% compatible, or return it within 1 Whole Year for a full refund.

Need some help installing your upgrade? See our guides and videos.

System Specifications

Standard Memory:

Maximum Memory:

Expansion:

16 Sockets (4 banks of 4) using HP p/n: A9738A 32 Sockets (8 banks of 4) using HP p/n: A9739A

CPU/Chipset:

Bus Architecture:

Mfr's System P/N's:

Upgrade Path:

Any combination of 2 and 8GB kits can be installed to reach configurations up to 64GB.