IBM PC Server/Enterprise rack enclosures

General checkout

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Powering off the rack

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Power checkout

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General checkout

Use the following procedure for diagnosing keyboard, mouse, and video problems for the IBM PC Server Rack Enclosure and the IBM Rack enclosures (Type 9306 and Type 9308).

For power problems, see “Power checkout” on page 2.

Attention:

For Models 4QS, 4QX, 9QS, 9QX, 9TS, 9TX only:

Ensure that the voltage selector switch on each server installed in the server rack is set to 230 V ac.

For Models 200, 900 only:

Ensure that the voltage selector switch on each server installed in the server rack is set to the proper voltage as supplied by the Power Distribution Unit, PDU.

1.Check the following:

Ensure the external power cord is in good condition and properly connected to a known-good power source.

Ensure the internal power cables are in good condition and properly connected. (The internal power cables connect between the power distribution unit and the servers installed in the server rack.)

Ensure the following devices are powered on.

a.Power distribution unit

b.Server selector unit

c.All system units

d.Display

2.If the items/conditions specified in step 1. are not okay, correct the problem and verify that the server rack is operating correctly.

3.If the items/conditions specified in step 1. are okay, then, using the server selector keypad buttons, check the operation of the failing device for all of the servers that are installed in the rack.

4.Did the failure occur on more than one server?

NO: Go to the Hardware Maintenance manual for the server that was selected when the failure occurred. Disconnect the keyboard and mouse from the server selector unit and connect them directly to the failing server. Then, run the server diagnostic programs on the failing server.

If the problem still remains, disconnect the keyboard and mouse from the failing server and reconnect them to the server selector unit. Then, replace the server rack components in the following order until the problem goes away.

a.Device cable (connects between the server selector unit and the server that was selected when the failure occurred).

© Copyright IBM Corp. 2001

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IBM 200, 9TX, 9TS, 9QX, 9QS, 900, 4SB, 4SA, 42P, 42X, 42E, 42S, 4QS, 4QX IBM PC Server/Enterprise rack enclosures, General checkout