System board led codes – Dell PowerVault 770N (Deskside NAS Appliance) User Manual
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4-2-2
Shutdown test failure.
4-2-3
Gate A20 failure.
4-2-4
Unexpected interrupt in
protected mode.
Ensure that the expansion cards are properly installed. If the problem persists, replace
the faulty expansion card(s) (see "
").
4-3-1
Improperly installed or
faulty memory
modules.
Ensure that the memory modules are properly installed. If the problem persists, replace
the faulty memory module(s) (see "
").
4-3-2
No memory modules
installed in bank 1.
Install memory modules in bank 1 of the same type and size (see "
4-3-3
Faulty system board.
Replace the system board (see "
4-3-4
Time-of-day clock
stopped.
Ensure that the system battery is properly installed. If the problem persists, replace the
battery (see "
").
4-4-1
Super I/O chip failure;
faulty system board.
Replace the system board (see "
4-4-2
BIOS-shadowing
failure.
Ensure that the system cooling fans are properly installed. If the problem persists,
replace the faulty fan(s) (see "
"). If the problem persists, replace the
system board (see "
4-4-3
Microprocessor speed
control sequence
failure.
Ensure that the microprocessors are properly installed. If the problem persists, replace
the faulty microprocessor(s) (see "
"). If the problem persists, replace the
system board (see "
4-4-4
Cache test failure;
faulty microprocessor.
System Board LED Codes
CAUTION:
The power supplies in this system produce high voltages and energy hazards, which can cause
bodily harm. Only trained service technicians are authorized to remove the system cover and access any of
the components inside the system.
Errors that cannot be reported on the monitor during the boot routine can appear on the system board as a series of five lit or
flashing LEDs. The LEDs can only be seen when the system cover is removed (see
defines these LED
codes.
Figure 3-9. System Board LEDs