Dell OptiPlex GXi Reference and Installation Guide ( - Page 71

Performing a Memory Upgrade, Table 6-1., Sample DIMM Configuration Options

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Table 6-1. Sample DIMM Configuration Options Total DIMM Socket Desired Memory A B C D 16 MB 16 MB 24 MB 16 MB 8 MB 32 MB 32 MB 40 MB 32 MB 8 MB 48 MB 32 MB 16 MB 56 MB 32 MB 16 MB 8 MB 64 MB 64 MB 64 MB 32 MB 32 MB 72 MB 32 MB 32 MB 8 MB 80 MB 32 MB 32 MB 16 MB 88 MB 32 MB 32 MB 16 MB 8 MB 96 MB 32 MB 32 MB 32 MB 104 MB 32 MB 32 MB 32 MB 8 MB 112 MB 32 MB 32 MB 32 MB 16 MB 128 MB 128 MB 128 MB 32 MB 32 MB 32 MB 32 MB 192 MB 128 MB 64 MB 256 MB 128 MB 128 MB 320 MB 128 MB 128 MB 64 MB 384 MB 128 MB 128 MB 128 MB 448 MB 128 MB 128 MB 128 MB 64 MB 512 MB 128 MB 128 MB 128 MB 128 MB NOTES: For optimum performance, install DIMMs in consecutive sockets starting with socket A. Table 6-1 is not a complete list of all valid DIMM configurations. Performing a Memory Upgrade Follow this procedure to perform a memory upgrade: 1. Remove the computer cover according to the instructions in "Removing the Computer Cover" in Chapter 5. CAUTION: See "Protecting Against Electrostatic Discharge" in the safety instructions at the front of this guide. 2. Rotate the power supply out of the way according to the instructions in "Rotating the Power Supply Away From the System Board" in Chapter 5. 3. Determine the DIMM sockets into which you will install SIMMs or replace existing DIMMs. See Figure 6-1 and Table 6-1. 4. Install or replace DIMMs as necessary to reach the desired memory total. Follow the instructions in "Installing a DIMM" or Removing a DIMM," as appropriate, found later in this section. 5. Rotate the power supply back into the computer chassis. 6. Replace the computer cover, reconnect your computer and peripherals to their power sources, and turn them on. After the system completes the power-on self-test (POST) routine, the system runs a memory test that displays the total memory of all installed DIMMs, including those you just installed. NOTE: If the memory total is incorrect, turn off your computer and peripherals and disconnect them from their power sources, remove the computer cover, and make sure that the installed DIMMs are seated properly in their sockets. Then repeat this step. Installing System Board Options 6-5

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Installing System Board Options
6-5
Performing a Memory Upgrade
Follow this procedure to perform a memory upgrade:
1.
Remove the computer cover according to the
instructions in “Removing the Computer Cover”
in Chapter 5.
2.
Rotate the power supply out of the way according
to the instructions in “Rotating the Power Supply
Away From the System Board” in Chapter 5.
3.
Determine the DIMM sockets into which you will
install SIMMs or replace existing DIMMs.
See Figure 6-1 and Table 6-1.
4.
Install or replace DIMMs as necessary to reach
the desired memory total.
Follow the instructions in “Installing a DIMM” or
Removing a DIMM,” as appropriate, found later in
this section.
5.
Rotate the power supply back into the computer
chassis.
6.
Replace the computer cover, reconnect your com-
puter and peripherals to their power sources, and
turn them on.
After the system completes the power-on self-test
(POST) routine, the system runs a memory test that
displays the total memory of all installed DIMMs,
including those you just installed.
NOTE:
If the memory total is incorrect, turn off your
computer and peripherals and disconnect them from
their power sources, remove the computer cover, and
make sure that the installed DIMMs are seated prop-
erly in their sockets. Then repeat this step.
Table 6-1.
Sample DIMM Configuration Options
Total
Desired
Memory
DIMM Socket
A
B
C
D
16 MB
16 MB
24 MB
16 MB
8 MB
32 MB
32 MB
40 MB
32 MB
8 MB
48 MB
32 MB
16 MB
56 MB
32 MB
16 MB
8 MB
64 MB
64 MB
64 MB
32 MB
32 MB
72 MB
32 MB
32 MB
8 MB
80 MB
32 MB
32 MB
16 MB
88 MB
32 MB
32 MB
16 MB
8 MB
96 MB
32 MB
32 MB
32 MB
104 MB
32 MB
32 MB
32 MB
8 MB
112 MB
32 MB
32 MB
32 MB
16 MB
128 MB
128 MB
128 MB
32 MB
32 MB
32 MB
32 MB
192 MB
128 MB
64 MB
256 MB
128 MB
128 MB
320 MB
128 MB
128 MB
64 MB
384 MB
128 MB
128 MB
128 MB
448 MB
128 MB
128 MB
128 MB
64 MB
512 MB
128 MB
128 MB
128 MB
128 MB
NOTES:
For optimum performance, install DIMMs in
consecutive sockets starting with socket A.
Table 6-1 is not a complete list of all valid DIMM configura-
tions.
CAUTION:
See “Protecting Against Electro-
static Discharge” in the safety instructions at
the front of this guide.