Dell E521 - Dimension Motherboard UW457 0UW457, Owner'S Manual

Page: 72 / 164

72
Removing and Installing Parts
Addressing Memory With 4-GB Configurations
Your computer supports a maximum of 4 GB of memory when you use four 1-GB DIMMs. Current
32-bit operating systems, such as Microsoft
®
Windows
®
XP, can use a maximum of 4 GB of address
space; however, the amount of memory available to the operating system is less than that installed.
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 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.
1
Follow the procedures in "Before You Begin" on page 65.
2
Press the securing clip at each end of the memory module connector.
1 memory connector farthest
from processor (DIMM_1) 2 securing clips (2) 3 connector
2
3
1