IBM N7800, Hardware And Service Manual

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Cable retention clip
2
Thumbscrews
a. Pinch the tab on the locking mechanism of the cable retainer clip, and then
open the retainer clip.
b. Slide the retainer clip off the cable.
c. Unplug the power cord from the power supply and the power source.
4. Loosen the two thumbscrews on the power supply and then lower the cam
handle and slide the power supply out of the chassis. Make sure that you
support the power supply with your free hand.
Installing a power supply
To install a power supply, you must follow these steps to place the power supply
in the chassis, secure it, and reconnect the power cord.
About this task
Important: You can configure the system with either a 110V AC power supply or a
220V AC power supply. For proper system operation, do not mix 110V and 220V
AC power supplies in your system.
Procedure
1.
Make sure that the on/off switch of the new power supply is in the Off
position.
2. If you are not already grounded, properly ground yourself.
3. Align the edges of the power supply with the opening in the system chassis
and gently push the power supply into the chassis until the cam handle begins
to rise.
4. Push on the edges of the power supply to seat it all the way into the chassis,
and then push the cam handle to the closed position.
5. Tighten the two thumbscrews on the power supply.
6.
Reconnect the power cord and secure it to the power supply using the cable
retaining clip.
7. Reconnect the power supply to the power source, and then turn it on. The
power supply should run with no fault LEDs lit.
8.
Run diagnostics on the power supply at next reboot. See the Diagnostics Guide
for more information.
Completing the replacement process
Return the failed part to IBM. Contact IBM Service and Support at 1-800-IBM-SERV
(1-800-426-7378) for more information on the return procedure.
Replacing the Real-Time Clock (RTC) battery in an N7000 series
system
To replace the RTC battery in the motherboard tray, you must perform the
following tasks in order.
Chapter 5. Replacing N7000 series system devices
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