Dell T8243, DHP manual Addressing Memory With 4-GB Configurations, Installing Memory

w w w . d e l l . c o m s u p p o r t . d e l l . c o m

matched pair of memory modules in DIMM connectors 1 and 2 (white securing clips)

matched pair of memory modules in DIMM connectors 3 and 4 (black securing clips)

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 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® 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

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located 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.

1Follow the procedures in "Before You Begin" on page 53.

2Lay the computer on its side so that the system board is on the bottom of the inside of the computer.

3Press out the securing clip at each end of the memory module connector.

64

Removing and Installing Parts