IBM HS40 manual Hardware Maintenance Manual and Troubleshooting Guide on the IBM

Note: See Chapter 7, “Parts listing, Type 8839,” on page 105 to determine which components should be replaced by a field service technician.

Intermittent problems

Symptom	FRU/action
A problem occurs only	Make sure that:
occasionally and is difficult to	v When the server is turned on, air is flowing from the rear of the server at the
detect.	blower grill. If there is no airflow, the blower is not working. This causes the
	server to overheat and shut down.
	v Ensure that the SCSI bus and devices are configured correctly.

Note: See Chapter 7, “Parts listing, Type 8839,” on page 105 to determine which components should be replaced by a field service technician.

Keyboard, mouse, or pointing-device problems

Symptom	FRU/action
All or some keys on the	1.	Make sure that:
keyboard do not work.
		v The keyboard cable is securely connected to the BladeCenter management
		module, and the keyboard and mouse cables are not reversed.
		v Both the computer and the monitor are turned on.
	2.	Keyboard.
	3. Management module on the BladeCenter unit; see the IBM BladeCenter Type
		8677 Hardware Maintenance Manual and Troubleshooting Guide on the IBM
		BladeCenter Documentation CD.
The mouse or pointing device	1.	Make sure that:
does not work.		v The keyboard/mouse/video select button LED on the front of the blade
		server is lit, indicating that the blade server is connected to the shared
		BladeCenter monitor.
		v The mouse or pointing-device cable is securely connected to the
		BladeCenter management module, and that the keyboard and mouse cables
		are not reversed.
		v The mouse works correctly with other blade servers.
		v The mouse device drivers are installed correctly.
		v Both the computer and the monitor are turned on.
		v The mouse is recognized as a USB device, not PS2, by your blade server.
		Although the mouse is a PS2-style device, communication with the mouse is
		through an internal USB bus in the BladeCenter chassis. Some operating
		systems permit you to select the type of mouse during installation of the
		operating system. Select USB.
	2. Mouse or pointing device.
	3. Management module on the BladeCenter unit; see the IBM BladeCenter Type
		8677 Hardware Maintenance Manual and Troubleshooting Guide on the IBM
		BladeCenter Documentation CD.
Mouse function lost during	If, while installing Red Hat Linux 7.3 to a blade server, you or someone else
Red Hat installation.	selects a different blade server as owner of the keyboard, video, and monitor
	(KVM), you might lose mouse function for the installation process.
	Do not switch KVM owners until the installation process begins to install the
	packages (after the ’About to Install’ window).

90BladeCenter HS40 Type 8839: Hardware Maintenance Manual and Troubleshooting Guide