IBM 7012 300 Series Installation And Service Manual page 51

Step 8
(from Step 7)
1. Set the power switch on the system unit to Off.
2. Install and connect the disk drive frame and disk drives.
3. For Models 320, 32E, and 32H with SCSI-attached disk drives, install the SCSI adapter
in the I/O planar and reconnect the signal cable to the SCSI adapter.
4. For Models 320, 32E, and 32H with SCSI-attached disk drives, and Models 340, 34H,
350, 355, 360/36T, 365, 370/37T, and 375, 380, 390, 39H, and 397, disconnect the
signal and power connectors from all the disk drives.
For Models 320, 32E, and 32H with bus-attached disk drives, disconnect the power
connectors P3 and P4 from the system planar.
5. Insert the first diagnostic diskette into the diskette drive.
6. Set the power switch on the system unit to On.
7. Wait for one of the following conditions to occur:
Is the 3.5-inch diskette drive in-use light on and c07 displayed in the three-digit
display.
NO
The 3.5-inch diskette drive in-use light is on and c05 or c07 is displayed in the
three-digit display.
The system stops for at least three minutes and a constant number, character, or
symbol is displayed in the three-digit display and the power light is on.
The system stops and two or more numbers with values between 221 and 296 are
displayed alternately in the three-digit display.
The system stops and a flashing 888 is displayed in the three-digit display.
The power light does not come on, or the power light comes on but does not stay on.
One of the FRUs remaining in the system unit is defective.
In the following order, exchange the FRUs that have not been exchanged:
For Models 320, 32E, and 32H with bus-attached or SCSI-attached disk
drives:
1. Rear disk drive (if bus-attached)
2. Front disk drive (if bus-attached)
3. Riser card (if present)
4. SCSI adapter (if present)
Note: Refer to POWERstation and POWERserver Common
5. SCSI cable (if present)
6. SCSI terminator
7. System planar
8. Power supply.
Diagnostics and Service Guide , " SCSI-1 Adapter Fuse
Blowing".
Maintenance Analysis Procedures
2-1540-9