IBM System x3690 X5, Service Manual, Page: 77 / 464

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 4, “Parts listing, System x3690 X5 Types 7147, 7148, 7149, and 7192,” on page 249 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.
Symptom Action
The screen is blank.
1. If the server is attached to a KVM switch, bypass the KVM switch to eliminate
it as a possible cause of the problem: connect the monitor cable directly to the
correct connector on the rear of the server.
2. Make sure that:
v
The server is turned on. If there is no power to the server, see “Power
problems” on page 62.
v
The monitor cables are connected correctly.
v
The monitor is turned on and the brightness and contrast controls are
adjusted correctly.
3. Make sure that the correct server is controlling the monitor, if applicable.
4. Make sure that damaged server firmware is not affecting the video; see
“Updating the firmware” on page 397.
5. Observe the checkpoint LEDs on the system board; if the codes are changing,
go to step 6.
6. Replace the following components one at a time, in the order shown, restarting
the server each time:
a. Monitor
b. Video adapter (if one is installed)
c. (Trained service technician only) System board.
7. See “Solving undetermined problems” on page 245.
The monitor works when you
turn on the server, but the
screen goes blank when you
start some application
programs.
1.
Make sure that:
v
The application program is not setting a display mode that is higher than
the capability of the monitor.
v
You installed the necessary device drivers for the application.
2. Run video diagnostics (see “Running the DSA Preboot diagnostic programs”
on page 81).
v
If the server passes the video diagnostics, the video is good; see “Solving
undetermined problems” on page 245.
v (Trained service technician only) If the server fails the video diagnostics,
replace the system board.
Chapter 3. Diagnostics
59