Addressing Memory With 4-Gb Configurations; Installing Memory - Dell Dimension T8243 Owner's Manual

matched pair of memory modules in DIMM
connectors 1 and 2 (white securing clips)
NOTE:
Memory purchased from Dell is covered under your computer warranty.
NOTICE:
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 in pairs either in DIMM
connectors 1 and 2 or DIMM connectors 3 and 4.

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
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

CAUTION:
located in the Product Information Guide.
NOTICE:
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.
1 Follow the procedures in "Before You Begin" on page 53.
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.
64
Removing and Installing Parts
matched pair of memory modules in DIMM
connectors 3 and 4 (black securing clips)
If you remove your original memory modules from the computer during a memory upgrade,
®
Before you begin any of the procedures in this section, follow the safety instructions
To prevent static damage to components inside your computer, discharge static electricity
®
Windows XP, can only use a maximum of 4 GB of address