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4-76 Chapter 4: Hardware ServiceSeries 4000 Processor BoardIf the password must be cleared on a Pentium III or Celeron processorboard:1. Turn the power off and disconnect power from the workstation.2. Remove the Cover.3. Use a small screwdriver (or a suitable conductive tool) to short thepads of R438 to each other. R438 is located next to the LithiumBattery (as shown below).Floppy DriveR438LithiumBatteryGND180404. Reassemble the workstation and turn the power on.5. Reset the CMOS memory and the password.
Index—A—Adapter boardRemoving/replacing, 4-6Add-on boards, 3-14Aux power, 3-4Aux power board, 4-67, 4-68Aux power board removal, 4-13—B—Battery, 3-14Removing/replacing, 4-7, 4-20, 4-33Beep and error codes, 2-2—C—CMOS RAM settings, 3-6Crisis recovery, 3-12—D—Default I/O address and interruptsettingsWindows 95, 4-48, 4-58Diagnostic LEDs, 3-3Disassembly procedures, 4-3Disk drive removal, 4-8—E—Error and beep codes, 2-2Ethernet circuitry, 4-49—F—Fan removal, 4-10—M—Memory, 3-14Memory dumpAssemble utility, A-19Flex diskette format, A-6Flowcharts, A-8Moving files, A-7Performing a dump, A-1Pharlap 286 DOS extender usage, A-9Restrictions and limitations, A-15Riser board base address, A-14ROM Base address, A-14ROM image, A-18Switch location, A-4Tunes and tones, A-5Monitor problems, 3-16—P—PasswordClearing, 4-74, 4-75, 4-76
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NCR 7453 WorkstationRelease 3.2Hard
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iSafety WarningsPrefaceAudienceThis
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iiiGrounding InstructionsIn the eve
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vTable of ContentsChapter 1: Produc
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viiRemoving the Fan................
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ixRevision RecordIssue DateRemarksA
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xiVoluntary Control Council for Int
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11Chapter 1: Product OverviewIntrod
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2Chapter 2: POST DiagnosticsPower-O
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Chapter 2: POST Diagnostics 2-3Beep
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Chapter 2: POST Diagnostics 2-5Beep
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3Chapter 3: TroubleshootingIntroduc
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Chapter 3: Troubleshooting 3-3Diagn
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Chapter 3: Troubleshooting 3-5Gener
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Chapter 3: Troubleshooting 3-7Syste
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Chapter 3: Troubleshooting 3-9Power
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Chapter 3: Troubleshooting 3-11Hard
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Chapter 3: Troubleshooting 3-13Serv
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Chapter 3: Troubleshooting 3-15RESO
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4-4 Chapter 4: Hardware ServiceAC I
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Page 116: Index-2PCI LCD boardSVGA, 4-71VGA,
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