NCR 7458 Computer Hardware User Manual


 
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Table of Contents
Chapter 1: Product Overview
Introduction ...........................................................................................1-1
Cabinet .............................................................................................1-2
Label Locations......................................................................................1-4
Chapter 2: POST Diagnostics
Power-On Self-Test (POST) Errors .....................................................2-1
Recoverable POST Errors ..............................................................2-2
Error and Beep Codes ....................................................................2-2
Terminal POST Errors....................................................................2-6
Test Points and Beep Codes..........................................................2-6
Chapter 3: Hardware Service
Introduction ...........................................................................................3-1
Safety Requirements ......................................................................3-1
Back Panel Cable Connectors..............................................................3-3
Electronics Box Disassembly Procedures ..........................................3-4
Removing the Electronics Tray.....................................................3-4
Replacing the Electronics Tray.................................................3-5
Removing the Motherboard..........................................................3-6
Replacing the Motherboard....................................................3-10
Removing a PCI Adapter Card...................................................3-11
Removing the Power Supply ......................................................3-12
Replacing the Power Supply ..................................................3-13
Removing the Flexible Disk Drive .............................................3-13
Replacing the Flexible Disk Drive .........................................3-14
Removing the CD-ROM Drive ...................................................3-14