IBM 8849 Service Manual page 126

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
6. To change the serial number, type sn zzzzzzz where zzzzzzz is the serial
7. To change the asset tag, type asset aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
8. Restart the server.
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IBM xSeries 306m Types 8849 and 8491: Problem Determination and Service Guide
is the model type and yyy is the model number; then, press Enter.
number; then, press Enter.
where aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa is the asset tag number; then,
press Enter.