Ddr-Sdram Dimms; Memory Module Installation - Compaq Evo w4000 CMT Hardware Reference Manual

Hardware Upgrades

DDR-SDRAM DIMMs

Memory Module Installation

Ä
Ä
Ä
Å
2–8
For proper system operation, if your system supports DDR-SDRAM
DIMMs, the DIMMs must be industry-standard 184-pin, unbuffered
PC 1600 200 Mhz- or PC2100 266 Mhz-compliant DDR-SDRAM
DIMMs. The DDR-SDRAM DIMMs must support CAS Latency 2
or 2.5 (CL = 2 or CL = 2.5). They must also contain the mandatory
JEDEC SPD information. Also, x16 (double-sided) and x4 DIMMs
are not supported. The system will not start using unsupported
DIMMs. The largest memory supported is 1 GB using 512-MB
memory modules. After 1 GB memory modules are available, then
the largest memory supported will be 2 GB.
CAUTION: Your memory module sockets have gold metal contacts.
When upgrading your memory, it is important to use memory modules
with gold metal contacts to prevent corrosion and/or oxidation resulting
from having incompatible metals in contact with each other.
CAUTION: Static electricity can damage the electronic components of
the computer or optional cards. Before beginning these procedures,
ensure that you are discharged of static electricity by briefly touching a
grounded metal object. See Appendix E, "Electrostatic Discharge," for
more information.
CAUTION: When handling a memory module, be careful not to touch
any of the contacts. Doing so may damage the module.
1. If you have locked the Smart Cover Lock, use Computer Setup to
unlock the lock.
2. Shut down the operating system properly, then turn off the
computer and any external devices, then disconnect the power
cord from the power outlet.
3. Remove the access panel and locate the memory module sockets.
WARNING: To reduce risk of personal injury from hot surfaces, allow
the internal system components to cool before touching.
Hardware Reference Guide