IBM Type 8730, Type 8720 manual Nvram, Keyboard problems

Table 6. Troubleshooting charts (continued)

Device	Suggested action
Ethernet disconnect notice	If an Ethernet cable is accidentally removed from the back of the BladeCenter T unit,
will not appear when running	the small red X (disconnect notice) that normally would appear to indicate that the
Windows 2000.	cable was disconnected will not appear in the bottom right of the screen. The
	disconnect notice does not appear because the blade server Ethernet controller
	connects to the Ethernet switch module through integrated circuitry inside the
	BladeCenter T unit.
	When troubleshooting Ethernet-related problems, make sure that the Ethernet cables
	on the back of the BladeCenter T unit are connected properly.
The default IP address set by	When troubleshooting Ethernet-related problems, make sure that the Ethernet cables
the Ethernet switch module	on the back of the BladeCenter T unit are connected properly.
does not match the one
assigned by the management
module.
Updating the ethernet switch	When you use the management-module Web interface to update the Ethernet switch
module configuration through	module configuration, the management module firmware writes its settings for the
the management module	switch module only to the management module NVRAM; it does not write its settings
does not save the switch	for the switch module to the switch-module NVRAM.
NVRAM.	If the switch module restarts when the management module is not able to apply the
	IP address it has in NVRAM for the switch module, the switch module will use
	whatever IP address it has in its own NVRAM. If the two IP addresses are not the
	same, you might not be able to manage the Ethernet switch module any more.
	The management module cannot apply the switch IP address from its NVRAM if:
	v The management module is restarting
	v The management module has failed
	v The management module has been removed from the unit.
	When you use the management-module Web interface to update the Ethernet switch
	module configuration, the management module firmware writes its settings for the
	switch module only to the management module NVRAM; it does not write its settings
	for the switch module to the switch module NVRAM.
	If the switch module restarts when the management module is not able to apply the
	IP address it has in NVRAM for the switch module, the switch module will use
	whatever IP address it has in its own NVRAM. If the two IP addresses are not the
	same, you might not be able to manage the Ethernet switch module any more.
	The management module cannot apply the switch IP address from its NVRAM if:
	v The management module is restarting
	v The management module has failed
	v The management module has been removed from the unit.
Keyboard problems
The keyboard is very slow	Although the keyboard attached to the BladeCenter T unit is a PS/2-style keyboard,
when using an operating	communication with it is through a USB bus. When you are running an operating
system that does not have	system that does not have USB drivers, such as in the following instances, the
USB drivers.	keyboard responds very slowly.
	1. Run the blade server integrated diagnostics
	2. Run a BIOS update diskette on a blade server
	3. Update the diagnostics on a blade server
	4. Run the Broadcom firmware CD for a blade server
The keyboard is very slow	Sometimes when switching ownership of the KVM to a blade server, the video for the
when using an operating	blade server appears almost immediately, but it takes up to 10 or 20 seconds for the
system that does not have	mouse and keyboard to be usable. No action required.
USB drivers.

94BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide