If you are installing two DDR2 memory modules, you should install the modules as a pair,
with matched memory size and speed.
If the DDR2 memory modules
are not installed in a matched pair, the computer will continue to operate, but with a slight reduction in performance. If you install a mixed pair of DDR2 400-
MHz (PC2-3200) and DDR2 533-MHz (PC2-4300) memory, the modules function at the slowest speed installed. See the label on the module to determine the
module's capacity.
The recommended memory configuration is a pair of matched memory modules installed in DIMM connectors 1 and 2.
Addressing Memory With 4-GB Configurations
Your computer supports a maximum of 4 GB of memory when you use two 2-GB DIMMs. Current operating systems, such as Microsoft
®
Windows
®
XP, can only
use a maximum of 4 GB of address space; however, the amount of memory available to the operating system is less than 4 GB. Certain components within the
computer require address space in the 4-GB range. Any address space reserved for these components cannot be used by computer memory.
Installing Memory
1.
Follow the procedures in "
Before You Begin
."
2.
Lay the computer on its side so that the system board is on the bottom of the inside of the computer.
3.
Press out the securing clip at each end of the memory module connector.
NOTE:
Always install DDR2 memory modules in the order indicated on the system board.
NOTICE:
Do not install ECC memory modules.
NOTE:
Memory purchased from Dell is covered under your computer warranty.
NOTICE:
If you remove your original memory modules from the computer during a memory upgrade, keep them separate from any new modules that
you may have, even if you purchased the new modules from Dell. If possible,
do not
pair an original memory module with a new memory module.
Otherwise, your computer may not start properly. You should install your original memory modules as a pair in DIMM connectors 1 and 2.
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the
Product Information Guide
.
NOTICE:
To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your
computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
