Adaptec 5325301728 User Guide - Page 9

Snap Server 4200/4500 Replacing a Power Supply Assembly Shutting Down the Server Caution Shut down the server before you make any repairs. Improper shutdown may lead to loss of data or physical harm. When replacing the power supply on an expansion array, shut down the Snap Server to which the array is attached. 1 To start the shutdown process, press the power button on the front of the server. The green power LED remains lit until the shutdown process is complete. Do not disconnect the AC power cord while the LED remains lit. 2After the power LED is off, disconnect the AC power cord and all other cables from the back of the server. Power button 3 The server is heavy. With the help of an assistant, remove the server from the rack to a clean surface with ample room to the front and rear. Removing the Top Cover 1 To release the cover, turn the screw at the rear of the server counterclockwise. 2 The cover is seated tightly on the chassis. Standing in front of the server, press down firmly on the cover with both hands, and push the cover loose with a short, forceful thrust. Field Service Documentation 1 Copyright © 2007, Adaptec, Inc. All rights reserved. Information in this document is subject to change without notice and does not represent a commitment on the part of Adaptec or any of its subsidiaries.