HP Compaq dx2000 ST, Reference Manual

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Service Reference Guide, dx2000 ST 371411-001 F–1
F
Memory
AMD-Based Systems
Computers equipped with AMD-based processors come with Double Data Rate-Synchronous
Dynamic Random Access Memory (DDR-SDRAM) Dual Inline Memory Modules (DIMMs).
The memory sockets on the system board can be populated with industry-standard DIMMs.
These memory module slots are populated with at least one pre installed memory module. To
achieve the maximum memory support, you may be required to replace the pre installed DIMM
with a higher capacity DIMM.
If you are adding a second DIMM, it is recommended that you add a DIMM identical to the
preinstalled DIMM in order to achieve a higher performing dual channel mode. The system
board must be populated with DIMMs of identical type and speed for the system to operate in
dual channel mode.
For proper system operation, if the system supports DDR-SDRAM DIMMs, the DIMMs must be
industry-standard 184-pin, unbuffered PC 1600 200 MHz- or PC 2100 266 MHz-compliant CAS
Latency 2 or 2.5 (CL = 2 or CL = 2.5), or PC 2700 333 MHz-compliant CAS Latency 2.5 (CL =
2.5) 2.5 volt DDR-SDRAM DIMMs. They must also contain the mandatory Joint Electronic
Device Engineering Council (JEDEC) Serial Presence Detect (SPD) information. DIMMs
constructed with x4 SDRAM are not supported; the system will not start using unsupported
DIMMs.
Intel-Based Systems
Computers equipped with Intel-based processors come with double data rate synchronous
dynamic random access memory (DDR-SDRAM) dual inline memory modules (DIMMs).
The memory sockets on the system board can be populated with up to four industry-standard
DIMMs. These memory module slots are populated with at least one preinstalled memory
module. 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.
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, 2.5, or 3 (CL = 2, CL = 2.5, CL=3)
■
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