IBM 6C1, Service Manual

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Step 1540-2
1. Turn off the power.
2. If you have not already done so, configure the service processor with the
instructions in note 6 on page 63. Then return here and continue.
3. Exit the service processor menus and remove the power cords.
4. Disconnect all external cables (parallel, serial port 1, serial port 2, serial port 3,
keyboard, mouse, Ethernet, SCSI, and so on).
5. Remove the service access cover (Model 6E1) or place the drawer (Model 6C1)
into the service position and remove the service access cover.
6. Record the slot numbers of the PCI adapters. Label and record the locations of
any cables attached to the adapters. Disconnect any cables attached to the
adapters and remove all the adapters.
7. Remove the second processor (if installed). If the second processor is removed,
ensure the first processor is installed.
8. Record the slot numbers of the memory DIMMs. Remove all memory DIMMs
except for one pair from the memory card.
Notes:
a. Place the memory DIMM locking tabs in the locked (upright) position to prevent
damage to the tabs.
b. Memory DIMMs must be installed in pairs and in the correct connectors. For
example, install the pair in connectors J1 and J2.
9. Disconnect the SCSI cable from the SCSI connector on the system board.
10. Disconnect the IDE cable from the IDE connector on the system board.
11. If installed, disconnect the signal and power connectors from the disk drive cage
backplane.
12. If installed, remove the disk drive(s) from the disk drive cage.
13. Disconnect the signal and power connectors from all the SCSI devices.
14. Disconnect the signal and power connectors from all the IDE devices.
15. Disconnect the diskette drive cable from the diskette drive connector on the
system board.
16. Plug in the power cords and wait for the OK on the operator panel display.
17. Turn on the power.
Does the system stop with code E1F2, E1F3, STBY or 4BA00830 displayed on the
operator panel?
NO Go to “Step 1540-3” on page 66.
YES If a second processor card was removed, go to “Step 1540-4” on page 67.
If the system has only one processor card, go to “Step 1540-5” on page 67.
Chapter 3. Maintenance Analysis Procedures (MAPs)
65