IBM LS21 - BladeCenter - 7971, Service Manual

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3. Replace the keyboard or mouse.
4. Replace the management module (see the documentation for your BladeCenter
unit).
If these steps do not resolve the problem, it is likely a problem with the blade
server. See “Keyboard or mouse problems” on page 27.
Media tray problems
To check for problems with the media tray (removable media drives and USB ports),
complete the following steps until the problem is solved:
1. Make sure that:
v
The media-tray select button LED on the front of the blade server is lit,
indicating that the blade server is connected to the shared media tray.
v The media tray devices work with another blade server.
2. Check if the problem affects more than one media tray component:
v
USB ports
v
Diskette drive
v
CD or DVD drive
3. For problems affecting only a USB port:
a. Make sure that the USB device is operational. If using a USB hub, make
sure that the hub is operating correctly and that any software that the hub
requires is installed. Plug the USB device directly into the USB port,
bypassing the hub, to check its operation.
b. Reseat the following components:
1) USB device cable
2) Media tray cable (if applicable)
3) Media tray
c. Replace the following components one at a time, in the order shown,
restarting the blade server each time:
1) USB cable (if applicable)
2) Media tray cable (if applicable)
3) Media tray
d. Continue with step 7.
4. For problems affecting only the diskette drive:
a. If there is a diskette in the drive, make sure that:
v The diskette is inserted correctly in the drive.
v The diskette is good and not damaged; the drive LED light flashes once
per second when the diskette is inserted. (Try another diskette if you have
one.)
v
The diskette contains the necessary files to start the blade server.
v
The software program is working properly.
v
The distance between monitors and diskette drives is at least 76 mm (3
in.).
b. Continue with step 6.
Chapter 2. Diagnostics
53