IBM 6648 - Manual (Page 114)

Power supply removal . . . . . . . 144
A20 system board layout (Type 6269) . . . 146
System board locations . . . . . . . 146
A20 System board jumper settings . . . 146
A20 Clear CMOS/Flash Boot Block
Recovery.
. . . . . . . . . . 146
A20 Processor Speed Settings . . . . 147
A20 Diskette Write Access . . . . . 147
A40/A40P system board layout
(Types 6058/6059/6578/6579) .
. . . . . 148
System board locations . . . . . . . 148
A40/A40P System board jumper settings 148
A40/A40P Clear CMOS/Flash Boot
Block Recovery
. . . . . . . . 149
A40/A40P Processor Speed Settings 149
A40/A40P Diskette Write Access. . . 149
Symptom-to-FRU index . . . . . . . . 150
Beep symptoms . . . . . . . . . 150
No-beep symptoms . . . . . . . . 152
POST error codes . . . . . . . . . 153
Miscellaneous error messages . . . . . 167
Undetermined problems . . . . . . . 171
Model tables - Country/Region/Language 172
Parts - Types 6058/6059/6269/6578/6579 173
Parts listing . . . . . . . . . . . 174
Keyboards - PCNext Lite Pearl White 180
Computer Power Cords . . . . . . 181
Recovery CDs . . . . . . . . . 182
Display and Monitor Information . . 182
Special tools . . . . . . . . . 183
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Hardware Maintenance Manual: IBM NetVista Computer Types 6058, 6059, 6269, 6568, 6569, 6578, 6579, 6648,
6649