IBM 86601RU Hardware Maintenance Manual - Page 382
J28 Microprocessor, properly set.
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UPC - 087944414230
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b. Hold the microprocessor 4 by the open latches 3 , and center the microprocessor over the microprocessor connector 9 . Attention Make sure the microprocessor is oriented and aligned correctly before you try to close the latches. c. Press the microprocessor into the connector and carefully close the latches 3 to seat the microprocessor in the connector. 6. Set the microprocessor core-ratio selection jumper block for the correct core ratio. Attention If the microprocessor bus-to-core ratio is incorrect, system board components will overheat and component damage might occur. Be sure that the microprocessor core-ratio selection is properly set. 1 2 3 4 1 (J31)- 4 (J28) Microprocessor core-ratio-selection. For the core/bus ratio 4.0 (400/100 MHz), jumpers are installed on pins 1 and 2 of J28, J30, and J31 and on pins 2 and 3 of J29. For the core/bus ratio 4.5 (450/100 MHz), jumpers are installed on pins 1 and 2 of J28 and J31 and on pins 2 and 3 of J29 and J30. 374 Netfinity Server HMM
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