Dell Dimension 8200 - Manual (Page 14)

The only two valid memory configurations are:
l A pair of matched memory modules installed in connectors RIMM1 and RIMM2 with continuity modules installed in connectors RIMM3 and RIMM4
or
l A pair of matched memory modules installed in connectors RIMM1 and RIMM2 and another matched pair installed in connectors RIMM3 and RIMM4
To install memory modules:
1. Shut down the computer .
2. Turn off any attached devices and disconnect them from their electrical outlets.
3. Disconnect the computer power cable from the wall outlet, and then press the power button to ground the system board.
4. Open the computer cover .
5. Remove a memory or a continuity module.
a. Press out the securing clip at each end of the memory module connector.
b. Grasp the module and pull up.
If the module is difficult to remove, gently ease the module back and forth to remove it from the connector.
6. To insert a module, press out the securing clip at each end of the memory module connector.
HINT: Memory purchased from Dell is covered under your computer warranty.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
NOTICE: If you upgrade the memory, the memory modules must be upgraded in matched pairs of identical MB capacity in both memory connectors
RIMM1 and RIMM2 or memory connectors RIMM3 and RIMM4 .
NOTICE: Be sure to install memory modules in the first two memory connectors ( RIMM1 and RIMM2 ) nearest the processor before installing memory
modules in the outer two memory connectors ( RIMM3 and RIMM4 ).
NOTICE: All memory connectors must be populated with either a memory module or a continuity module. The computer will not operate if a memory
connector is unpopulated.
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 the new modules were purchased from Dell. Your original memory modules must be installed as a pair in either connectors RIMM1
and RIMM 2 or RIMM 3 and RIMM4. Do not pair one original memory module with one new memory module in connectors RIMM1 and RIMM2 or RIMM3 and
RIMM4. Otherwise, your computer may not start properly.