Gateway 8450R Operator's manual

Documentation Update...
Replacing the Power Supply
This update replaces the procedure provided in the Gateway
8450R System Manual.
The redundant 350-W power supply provides all system
power. If one of the components of the power distribution
hardware fails, you must replace the entire power supply.
1Turn off the server and disconnect the power cord and
all peripherals.
2Remove the bezel and both top panels following the
instructions in the system manual.
3Remove the four screws that secure the upper drive bay
bracket in place, then slide the bracket forward before
lifting it from the chassis.
4Disconnect the cables from the bottom front side of the
hot-plug fan tray. Note the location and orientation of
each cable so you can connect them correctly to the new
board.
Upper drive
bay bracket
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5Remove the two screws that secure the fan tray, then lift
the tray out of the chassis and place it on a static-free
surface.
6Disconnect all cables attached to the power supply. Note
their locations and orientations so you can reconnect
them later.
Fan tray
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7Loosen the captive thumbscrew at the bottom of the
power supply front, then slide the power supply forward
until it stops.
8Tilt the power supply forward and lift it up and back to
clear the tab on the bottom of the chassis.
9Holding the new power supply with the back slightly
elevated, place the new power supply over the tab on the
bottom of the chassis, then rotate it so that it rests flat
on the bottom of the chassis.
10 Slide the power supply back so that the tabs on the
bottom back edge of the power supply slide under the
slots on the bottom of the chassis.
Captive thumbscrew
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11 Tighten the captive thumbscrew at the bottom of the
power supply to secure it in place.
12 Place the fan tray in the chassis and secure it with the
screws you removed in Step 5.
13 Reconnect the cables you removed in Step 4.
14 Placetheupperdrivebaybracketonthe top of thechassis.
Make sure the tabs on the bottom of the bracket fit into
the slots at either side of the chassis.
15 Slide the upper drive bay bracket back to set the tabs, then
replace the four screws you removed in Step 3.
16 Close the case.
17 Reconnect the power cord and all external peripherals,
then turn on the server.
A MAN 8450R POW SUPPLY UPDR0 8/00
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