User Guide
223
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- DIMMs must be populated in pairs and in the following order:
11 and 21, 31 and 41, 12 and 22, 32 and 42, 13 and 23, and 33 and 43.
- Installed DIMMs must be the same speed and must all be registered.
- Take a note of beep code pattern, and take appropriate action according to the
table listed in
“Beep Codes” on page 247.
- Make sure the jumper switches have been returned to their original positions
after CMOS clearing. See "Configuring motherboard Jumpers" in Chapter 4 for
the positions of the jumper switches.
POST fails to complete:
■
Is the DIMM board installed?
- At least two DIMM boards are required for operation.
- DIMMs must be populated in pairs and in the following order:
11 and 21, 31 and 41, 12 and 22, 32 and 42, 13 and 23, and 33 and 43.
- Installed DIMMs must be the same speed and must all be registered.
■ Is the memory size large?
- The memory check may take a few seconds if the memory size is large. Wait for
a while.
■ Did you perform any keyboard or mouse operation immediately after you started
the server?
- If you perform any keyboard or mouse operation immediately after start-up,
POST may accidentally detect a keyboard controller error and stops proceeding.
In such a case, restart the server once again. Do not perform any keyboard or
mouse operation until the BIOS start-up message appears when you restart the
server.
■ Does the server contain appropriate memory boards or PCI devices?
- Operation of the server with unauthorized devices is not guaranteed.
Fail to access to internal or external devices (or such devices fail to operate):
■ Are cables properly connected?
- Make sure that the interface cables and power cord are properly connected. Also
make sure that the cables are connected in the correct order.
■ Is the power-on order correct?
- When the server has any external devices connected, power on the external
devices first, then the server.
■ Did you install drivers for connected optional devices?
- Some optional devices require specific device drivers. Refer to the manual that
comes with the device to install its driver.
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