HP dc7700 manual Installing Additional Memory, DDR2-SDRAM DIMMs

Installing Additional Memory

The computer comes with double data rate 2 synchronous dynamic random access memory (DDR2- SDRAM) dual inline memory modules (DIMMs).

DIMMs

The memory sockets on the system board can be populated with up to three industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM. To achieve the maximum memory support, you can populate the system board with up to 3 GB of memory configured in a high- performing dual-channel mode.

DDR2-SDRAM DIMMs

For proper system operation, the DIMMs must be:

●industry-standard 240-pin

●unbuffered PC2-5300 667 MHz-compliant or PC2-6400 800 MHz-compliant

●1.8 volt DDR2-SDRAM DIMMs

The DDR2-SDRAM DIMMs must also:

●support CAS latency 4 (CL = 4) for DDR2/667 MHz or CAS latency 5 (CL = 5) for DDR2/800 MHz

●contain the mandatory Joint Electronic Device Engineering Council (JEDEC) DDR2 DIMM specification

In addition, the computer supports:

●256Mbit, 512Mbit, and 1Gbit non-ECC memory technologies

●single-sided and double-sided DIMMS

●DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not supported

NOTE The system will not start if you install unsupported DIMMs.

Refer to the Computer Setup (F10) Utility Guide on the Documentation and Diagnostics CD for information on how to determine the processor bus frequency of a specific computer.

16 Chapter 2 Hardware Upgrades ENWW