Power Checkout - IBM 9306 Hardware Maintenance Manual

Power checkout

Use the following procedure for diagnosing power problems for the IBM PC Server
Rack Enclosure and IBM Rack enclosure (Type 9306).
Attention:
v For Models 4QS, 4QX, 9QS, 9QX, 9TS, 9TX only:
v For Models 200, 900 only:
1. Check the following:
2. If the items/conditions in step 1 are not okay, correct the problem and verify
3. If the items/conditions specified in step 1 are okay, then, using the server
4. Did the failure occur on more than one server?
2
Hardware Maintenance Manual: IBM PC Server/Enterprise Racks Types 9306, 9308
a. Device extender cable (connects between the device and the server
selector unit)
b. Failing device
c. Server selector cable (connects between the server selector keypad and
the server selector unit)
d. Server selector keypad
e. Server selector unit
Ensure that the voltage selector switch on each server installed in the server rack
is set to 230 V ac.
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.
v Ensure the external power cord is in good condition and properly connected
to a known-good power source.
v 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.)
v Ensure the following devices are powered on.
a. Power distribution unit
b. Server selector unit
c. All system units
d. Display
correct operation of the server rack.
selector keypad buttons, check for correct operation of all the servers installed
in the rack.
v No: Go to the Hardware Maintenance manual for the server that was selected
when the failure occurred and run the server diagnostic programs. If the
problem still remains, replace the power distribution unit.
v Yes: Power-off the server rack and replace the server rack components in the
following order until the problem goes away. See "Powering off the rack" on
page 3.
a. Power distribution unit fuse.
b. Power distribution unit.