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v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See Chapter 7, “Parts listing, ThinkServer RD220 Type 3729, 3779, 3797, and 3798,” on page 231 to
determine which components are customer replaceable units (CRU) and which components are field
replaceable units (FRU).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Error code Description Action
303 Keyboard controller error.
1. Reseat the keyboard cable in the USB connector.
2. Replace the following components one at a time,
in the order shown, restarting the server each
time:
a. Keyboard
b. (Trained service technician only) System
board
1600 Service processor not functioning.
1. (Trained service technician only) Replace the
system board.
178x Fixed disk error.
Note: x is the drive that has the error
1. Run the hard disk drive diagnostics tests on drive
x.
2. Reseat the following components:
a. Hard disk drive
b. Cable from the system board to the backplane
3. Replace the following components one at a time,
in the order shown, restarting the server each
time:
a. Hard disk drive
b. Cable from the system board to the backplane
c. Hard disk drive backplane
d. (Trained service technician only) System
board
1800 Unavailable PCI hardware interrupt.
1. Run the Server Configuration and Boot
Management program and adjust the adapter
settings.
2. Remove each adapter one at a time, restarting
the server each time, until the problem is isolated.
Chapter 5. Diagnostics 35