HP Compaq d338 MT, Hardware Reference Manual, Page: 15 / 66

Hardware Reference Guide www.hp.com 2–5
Hardware Upgrades
Installing Additional Memory
The computer comes with double data rate synchronous dynamic
random access memory (DDR-SDRAM) dual inline memory
modules (DIMMs).
DIMMs
The memory sockets on the system board can be populated with up to
four 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 4GB
of memory configured in a high-performing dual channel mode.
DDR-SDRAM DIMMs
For proper system operation, if the computer supports DDR-SDRAM
DIMMs, the DIMMs must be:
■
industry-standard 184-pin
■
unbuffered PC2100 266 MHz-, PC2700 333 MHz-, or PC3200
400 MHz-compliant
■
2.5 volt DDR-SDRAM DIMMs.
The DDR-SDRAM DIMMs must also:
■
support CAS latency 2 or 2.5 (CL = 2 or CL = 2.5)
■
contain the mandatory JEDEC SPD information
In addition, the computer supports:
■
128Mbit, 256Mbit, and 512Mbit 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
The following processor bus frequencies are required for the system
to run at the supported memory frequencies.