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4-26 Chapter 4: Hardware Service14. Hook the clip on the left side of the processor socket (➀), pushdown (➁) and out (➂) on the clip on the right side of the processorsocket as shown in the following illustration.2311792615. Plug the fan connector into the connector on the processor board.
Chapter 4: Hardware Service 4-27Setting DIP Switches (486, 586, 2xxx and 3xxx)1. Set the processor speed according to the following tables:For all except the 586 board:Processor Type SW1-1 SW1-2 SW1-3 SW1-4 SW1-5Class 35xx 686/233 Off On Off Off OffClass 35xx 686/333 Off On Off On OnClass 35xx 686/400 Off On On Off Off7453-3xxx/100 Off On Off Off N/A7453-3xxx/166 Off On On On N/A7453-3xxx/233 Off On Off Off N/A7453-2xxx/100 Off On Off N/A N/A486-DX4/100 On N/A N/A N/A N/AFor the 586 board:Switch position 1 is not used. Switch positions 2 and 3 selectprocessors that have a WriteThrough cache (WT) or a WriteBackcache (WB).Switch Position 2 Switch Position 3 ProcessorOn Off /WTOff On /WB (Default)Switch Position 4 Switch Position 5 MegahertzOn On 25On Off 33 (Default)Off On 40Off Off 50
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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
Page 13 and 14: xiVoluntary Control Council for Int
Page 15 and 16: 11Chapter 1: Product OverviewIntrod
Page 17 and 18: 2Chapter 2: POST DiagnosticsPower-O
Page 19 and 20: Chapter 2: POST Diagnostics 2-3Beep
Page 21 and 22: Chapter 2: POST Diagnostics 2-5Beep
Page 23 and 24: 3Chapter 3: TroubleshootingIntroduc
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Index-2PCI LCD boardSVGA, 4-71VGA,
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