Dell PowerVault 770N (Deskside NAS Appliance) - Manual (Page 19)

1-2-2 DMA initialization
failure.
Ensure that the memory modules are properly installed. If the problem persists, replace
the faulty memory module(s) (see " Memory Modules ").
1-2-3 DMA page register
write/read failure.
1-3-1 Main-memory refresh
verification failure.
1-3-2 No memory installed.
1-3-3 Chip or data line failure
in the first 64 KB of
main memory.
1-3-4 Odd/even logic failure
in the first 64 KB of
main memory.
1-4-1 Address line failure in
the first 64 KB of main
memory.
1-4-2 Parity failure in the first
64 KB of main memory.
1-4-3 Fail-safe timer test
failure.
1-4-4 Software NMI port test
failure.
2-1-1
through
2-4-4
Bit failure in the first
64 KB of main memory.
3-1-1 Slave DMA-register
failure.
Replace the system board (see " System Board ").
3-1-2 Master DMA-register
failure.
3-1-3 Master interrupt-mask
register failure.
3-1-4 Slave interrupt-mask
register failure.
3-2-2 Interrupt vector loading
failure.
3-2-4 Keyboard-controller
test failure.
Check the keyboard cable and connector. If the problem persists, replace the keyboard.
If the problem persists, replace the system board (see " System Board ").
3-3-1 CMOS failure. Replace the system board (see " System Board ").
3-3-2 System configuration
check failure.
3-3-3 Keyboard controller not
detected.
3-3-4 Video memory test
failure.
3-4-1 Screen initialization
failure.
3-4-2 Screen-retrace test
failure.
3-4-3 Video ROM search
failure.
4-2-1 No timer tick.