IBM eServer 240 xSeries, Руководство пользователя

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Diagnostic LED panel
The following illustration shows the LEDs on the diagnostic LED panel inside the
server. See “Light path diagnostics” for information on identifying problems using
these LEDs.
CPU
VRM
MEMORY
HDD
PCI BUS
NMI
SMI
SERVICE PROCESSOR
BUS
NON REDUNDANT
POWER SUPPLY
1 2 3
A B
1 2 3
FAN
TEMPERATURE
Light path diagnostics
You can use the light path diagnostics built into your server to quickly identify the
type of system error that occurred. Your server is designed so that any LEDs that
are illuminated remain illuminated when the server shuts down as long as the ac
power source is good and the power supplies can supply
+
5 V dc current to the
server. This feature helps you isolate the problem if an error causes the server to
shut down. See Table 15 on page 154.
Chapter 6. Solving problems
153