Introduction
Important service information
Important
BIOS and device driver fixes are
Advise customers to contact the Customer Support Center at
Customers in Canada should call the Customer Support Center at
Strategy for replacing FRUs
Before replacing parts
Make sure that all software fixes, drivers, and BIOS downloads are installed before replacing any FRUs listed in this manual.
After a system board is replaced, ensure that the latest BIOS is loaded to the system board before completing the service action.
To download software fixes, drivers, and BIOS, do as follows:
1.Go to http://www.lenovo.com/support
2.Enter the product number of the computer or press
3.Select Downloads and drivers.
4.Follow the directions on the screen and install the necessary software.
Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs:
vIf you are instructed to replace a FRU but the replacement does not correct the problem, reinstall the original FRU before you continue.
vSome computers have both a processor board and a system board. If you are instructed to replace either the processor board or the system board, and replacing one of them does not correct the problem, reinstall that board, and then replace the other one.
vIf an adapter or a device consists of more than one FRU, any of the FRUs may be the cause of the error. Before replacing the adapter or device, remove the FRUs, one by one, to see if the symptoms change. Replace only the FRU that changed the symptoms.
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