IBM 7940, Problem Determination And Service Manual

Page: 35 / 160

Note: If the server does not start from the external USB diskette drive, use the
Configuration/Setup Utility program to configure the external USB diskette drive as
a startup device. (For information about the Configuration/Setup Utility program, see
the
User’s Guide on the IBM System x Documentation CD.) Then, start again at
step 1 on page 16 of this procedure.
If there is an error in updating the firmware, try the update again.
Updating the UUID
You must update the Universal Unique Identifier (UUID) when you replace the
system board. To update the UUID, complete the following steps:
1. Copy the UUID utility (uuid.exe) from the BIOS flash diskette to a DOS bootable
diskette.
2. Insert the diskette into an external USB diskette drive that is connected to the
server.
3. Restart the server from the diskette.
4. At the a:\ prompt, type
UUID /wr
, and press Enter. The utility generates a
random identifier.
5. Restart the server.
Updating the DMI/SMBIOS data
You must update the Desktop Management Interface (DMI) when you replace the
system board. To update the DMI, complete the following steps:
1. Copy the DMI/SMBIOS utility (extrmdmi
.exe
) from the BIOS flash diskette to a
DOS bootable diskette.
2. Insert the diskette into an external USB diskette drive that is connected to the
server.
3. Restart the server from the diskette.
4. At the a:\ prompt, type
extrmdmi.exe
, and press Enter.
5. To change the machine type and model number, type mtm xxxxyyy , where xxxx
is the model type and yyy is the model number; then, press Enter.
6. To change the serial number, type
sn zzzzzzz
, where zzzzzzz is the serial
number; then, press Enter.
7. To change the asset tag, type asset aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ,
where aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa is the asset tag number; then,
press Enter.
8. Restart the server.
Chapter 2. Configuration information and instructions
17