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System Memory: Dell OptiPlex GX300 System User's Guide
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System Memory: Dell OptiPlex GX300 System User's Guide
Before you install
new memory modules, download the most recent BIOS for your computer from the
Dell Support website at http://support.dell.com.
You can increase system memory up to 1 gigabyte (GB) by using Rambus
dynamic random-access memory (RDRAM) Rambus in-line memory modules (RIMMs).
Figure 3 in
"Inside Your Computer" shows the location of the RIMM sockets on the system
board.
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NOTES: To reach the maximum 1-GB memory
total, you must install two 512-megabyte (MB) RIMMs (when available) that each have a
maximum of 16 memory devices. The system supports no more than a total of 32 memory
devices on all installed RIMMs. See Figure 1
for the location of a label on the RIMM that identifies the number of memory devices
it contains. You can also determine the number of memory devices installed through
the System Memory option
in System Setup.
The system does not support RIMMs with
six memory devices.
All RIMM sockets must be occupied either by a RIMM or a
continuity card. |
Figure 1. RIMM Label Showing
Number of Memory Devices
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| 1 |
Number of memory devices in RIMM |
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For optimum operation, Dell recommends that you install a RIMM in
socket A first (closest to the processor) before installing a RIMM in socket B.
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NOTE: Before disconnecting a peripheral from
the system or removing a component from the system board, verify that the standby power
light-emitting diode (LED) on the system board has turned off. For the location of this
LED, see Figure 3 in
"Inside Your Computer." |
To upgrade memory, perform the following steps.
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CAUTION: To avoid the possibility of
electric shock, turn off the computer and any peripherals, disconnect them from their
electrical outlets, and then wait at least 5 seconds before you remove the computer cover.
Also, before you upgrade memory, see the other precautions in "Safety FirstFor You and Your Computer.
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- Remove the computer cover according to the instructions in
"Removing and Replacing the Computer
Cover."
- Rotate the power supply as described in
"Rotating
the Power Supply Away From the System Board."
- If necessary, remove any RIMMs that occupy sockets in which you plan to install the
upgrade RIMMs.
- Install the upgrade RIMMs.
- Locate the plastic securing clips at each end of the socket
(see Figure 2).
- Press the clips outward until they snap open.
- Press the RIMM straight into the slot running down the center of the socket until the
securing tabs snap into place around the ends of the RIMM.
Figure 2. Installing a
RIMM
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| 1 |
Securing clips (2) |
| 2 |
Slot |
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- Rotate the power supply back into position, making sure that the
securing tab snaps into place.
- Replace the computer cover, and reconnect your computer and
peripherals to their electrical outlets and turn them on.
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NOTE: After you remove and replace
the cover, the chassis intrusion detector causes the following message to appear on the
screen at the next system start-up:
ALERT! Cover was previously removed. |
The system detects that the new memory does not match the existing
system configuration information and generates the following message:
The amount of system memory has changed.
Strike the F1 key to continue, F2 to run the setup utility
- Press <F2> to enter System Setup,
and check the value for System Memory.
The system should have already changed the value of System
Memory to reflect the newly installed memory. Verify the new total. If it is correct,
skip to step 9.
- If the memory total is incorrect, turn off and disconnect your
computer and peripherals from their electrical outlets. Remove the computer cover, rotate
the power supply, and check the installed RIMMs to make sure that they are seated properly
in their sockets. Then repeat steps 4, 5, 6, and 7.
- Reset the chassis intrusion detector by
changing Chassis Intrusion
to Enabled or Enabled-Silent.
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NOTE: If a setup password has been assigned
by someone else, contact your network administrator for information on resetting
the chassis intrusion detector. |
- When the System Memory total is correct, press
<Esc> to exit System Setup.
- Run the Dell Diagnostics
to verify that the RIMMs are operating properly.
To remove a RIMM, press the securing clips outward simultaneously
until the RIMM disengages and pops out slightly from the socket (see Figure 3).
Figure 3. Removing a RIMM
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