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

8506762.fm Page 1 Thursday, August 10, 2000 1:32 PM

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

8506762.fm Page 2 Thursday, August 10, 2000 1:32 PM

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

8506762.fm Page 3 Thursday, August 10, 2000 1:32 PM

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

8506762.fm Page 4 Thursday, August 10, 2000 1:32 PM

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