A-Tech 4GB DDR3 1333 PC3-10600 ECC RDIMM 2Rx4 server RAM

4GB DDR3 ECC RDIMM for HP servers

This A-Tech module delivers four gigabytes of registered DDR3 memory at 1333 MHz with CL9 latency. It is built for HP server and workstation platforms that require ECC error correction and registered signalling. The single 240-pin DIMM operates at the standard 1.50 V DDR3 voltage. Buyers upgrading compatible HP systems gain a direct replacement for several factory part numbers.

DDR3 1333 registered limits

The DDR3 1333 standard tops out at 10600 MB/s theoretical bandwidth per module. Registered DIMMs add a clock cycle of buffering, which stabilises heavy loads but prevents use in consumer desktop boards that expect unbuffered memory. ECC capability only functions when the platform chipset and BIOS support it; otherwise the module runs as non-ECC registered memory. Mixing registered and unregistered DIMMs in the same system is not supported by the DDR3 specification.

Check HP part list and slot count

Verify that your server or workstation lists one of the HP part numbers shown in the compatibility table before ordering. Confirm the motherboard provides 240-pin DDR3 DIMM slots and accepts registered ECC modules. Ensure the total installed memory does not exceed the platform's maximum supported capacity per channel or per system. Systems requiring unbuffered or non-ECC memory cannot use this module.