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Processor-controller board jumpers - Netfinity 8500R

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Abstract

Processor-controller board jumpers

Content

Processor-controller board jumpers
Table 14 describes the jumper on the processor controller board. The highlighted number in the table corresponds to the highlighted number on the illustration in Processor-controller board component locations.
 

Notes
  1. Turn off the server, and disconnect the power cord before moving any jumpers.
  2. Be sure the processor bus-to-core ratio is set correctly. For example, if you have a 550 MHz processor installed and the system bus speed is 100 MHz (the default), be sure that the jumpers are set to a bus-to-core ratio of 5.5 (550/100). See Table 14.
  3. Be sure to set the processor-core-frequency-selection jumper block for the slowest speed processor installed in the server. For example, if the server has a 550 MHz processor installed and you install three 600 MHz processors, set the processor-core-frequency-selection jumper block for the 550 MHz processor. MHz denotes internal clock speed of the processor only; other factors also affect application performance.
  4. For jumper settings for other speed processors, refer to the label on the inside top cover of the server.
  5. If you plan to use the processor serial-number security feature, you must change the setting of the Processor Serial Number menu choice in the Advanced Set-up menu of the Configuration/Set-up Utility program. The default value is "Disabled"; change this value to "Enabled", as described in Processor serial number access .
 

Attention : Be sure that the processor bus-to-core ratio jumper is properly set. If the processor bus-to-core ratio does not match the processor speed in the server, the server might operate with a degraded performance or not at all.
 
Processors listed in Table 14 are not necessarily available or planned for your model. If a processor becomes available for your model, use these switch settings.
Table 14. Processor-controller board jumper
Jumper name De scription
(3) Processor-core-frequency-selection The default core/bus fraction is 5.5 (550/100 MHz). Pins 9/10, 11/12, and 13/14 are closed. Pins 15/16 are open. For the core/bus fraction 6.0 (600/100 MHz), pins 9/10, 11/12, and 13/14 are open. Pins 15/16 are closed. For the core/bus fraction 6.5 (650/100 MHz), pins 9/10 and 15/16 are closed. Pins 11/12 and 13/14 are open.
For the core/bus fraction 7.0 (700/100 MHz), pins 9/10 and 11/12 are open. Pins 13/14 and 15/16 are closed. For the core/bus fraction 7.5 (750/100 MHz), pins 9/10, 13/14, and 15/16 are closed. Pins 11/12 are open.
Note :
Open = No jumper is present.
Closed = A jumper is present.

 
 

Document Location

Worldwide

Operating System

Older System x:Operating system independent / None

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Document Information

Modified date:
23 January 2019

UID

ibm1MIGR-4CWP53

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