IBM IntelliStation M Pro Hardware Maintenance Manual page 118

Option problems
Symptom
An IBM option that was just
installed does not work.
An IBM option that used to work
does not work now.
Power problems
Symptom
The power switch does not work
and the reset button, if
supported, does work.
The computer does not turn on. 1. Make sure that:
The computer does not turn off. 1. Determine whether you are using an ACPI or non-ACPI operating system.
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IBM IntelliStation M Pro Types 6220 and 6230: Hardware Maintenance Manual
FRU/action
1. Make sure that:
v The option is designed for the computer (see the ServerProven
World Wide Web at http://www.ibm.com/pc/compat/).
v You followed the installation instructions that come with the option.
v The option is installed correctly.
v You have not loosened any other installed options or cables.
v You updated the configuration information in the Configuration/Setup Utility
program. Whenever memory or an option is changed, you must update the
configuration.
2. Option you just installed.
1. Make sure that all of the option hardware and cable connections are
secure.
2. If the option comes with its own test instructions, use those instructions to test
the option.
3. If the failing option is a SCSI option, make sure that:
v The cables for all external SCSI options are connected correctly.
v The last device in each SCSI chain, or the end of the SCSI cable, is
terminated correctly.
v Any external SCSI devices are turned on. You must turn on external SCSI
devices before turning on the computer.
4. Failing option.
FRU/action
1. Reseat the connector.
2. Power switch card.
3. System board.
v The power cord is properly connected to the computer and a working
electrical outlet.
v The type of memory that is installed is supported by the computer.
2. If you just installed an option, remove it, and restart the computer. If the
computer now turns on, you might have installed more options than the power
supply supports.
3. Override the front-panel power button:
a. Disconnect the computer power cords.
b. Reconnect the power cords.
If computer turns on: Operator information panel
If computer does not turn on: System board
4. See "Undetermined problems" on page 115.
If you are using a non-ACPI operating system:
a. Press Ctrl+Alt+Delete.
b. Turn off the computer by holding the power-control button for 4 seconds.
c. If computer fails during POST and the power-control button does not work,
disconnect the ac power cord.
2. If the problem remains or if you are using an ACPI-aware operating system,
replace the system board.
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