NEC Express 5800 120Eg, Руководство пользователя

Страница: 189 / 292

120Eg User Guide - Problem Solving
5 - 21
Solving Problems
When the server fails to operate as expected, see the following to find out your problem
and follow the instruction given before asking for repair.
If the server still fails to operate successfully after solving your problem, take a note on
the on-screen message and contact your sales agent.
Problems with Express Server
No screen display appears with beep:
■
Are DIMMs installed securely?
- Check whether DIMMs are connected to the mating connectors firmly.
- Check whether DIMMs of different specifications are installed in the specific
bank. See
“Installing or Removing a DIMM” on page 4-38
for the specifications of
DIMMs.
- DIMMs must be populated in pairs and in the following order:
#1A and #1B, and then #2A and #2B.
- Installed DIMMs must be the same speed and must all be registered.
When two pairs of the DIMMs are installed, the largest pair of the DIMMs must
be installed to slots #2A and #2B.
- Installed DIMMs starting from the one having largest memory.
- Take a note of beep code pattern, and take appropriate action according to the
table listed in
“Beep Codes” on page 5-45
.
Fail to power on the server:
■
Is the server properly supplied with power?
- Check if the power cord is connected to a power outlet (or UPS) that meets the
power specifications for the server.
- Make sure to use the power cord provided with the server. Check the power
cord for broken shield or bent plugs.
- Make sure the power breaker for the connected power outlet is on.
- If the power cord is plugged to a UPS, make sure the UPS is powered and it out-
puts power. See the manual that comes with the UPS for details.
Power supply to the server may be linked with the connected UPS using the
BIOS SETUP utility of the server.
<Menu to check: [Server] - [Resume on AC Power Loss]>
■
Did you press the POWER switch?
- Press the POWER switch on the front of the server to turn of the power (the
POWER/SLEEP lamp lights).