Processor housing assembly - (NF 8500R - Type 8681)


Processor housing assembly

The Netfinity 8500R server comes with at least one processor installed on the standard processor daughterboard.
When you install one or more additional processors, the server can operate as a symmetric multiprocessing (SMP) server.
With SMP, certain operating systems and application programs can distribute the processing load among the processors.
This enhances performance for database and point-of-sale applications, integrated manufacturing solutions, and other applications.

Note: To ensure that the operating system supports multiprocessing operations, load the appropriate multiprocessor option software in the operating system programs.


The server supports a maximum of eight Intel® Pentium® III Xeon™ processors (upgradable when available).
For a list of supported operating systems, see

http://www.ibm.com/pc/us/compat/ on the World Wide Web.


Before you begin:


Notes:

  1.  The illustrations in this section might differ slightly from your hardware.
  2.  To ensure proper server operation, when you install an additional processor, use processors  with the same cache size and core frequency as those of the currently installed processor.
  3.  If you replace the processors in the server with processors of a different speed, be sure to set  the processor core frequency selection jumper block correctly.
     (See 'Processor-controller board jumpers' for more information.
     For a list of supported processor speeds, see

    http://www.ibm.com/pc/us/support/ on the World Wide Web.)

  4.  To maintain signal quality and system reliability, either a processor or a processor terminator card  must be installed in each processor connector.
     A processor must be installed in processor connector A1 on the standard processor daughterboard (A).
  5.  If you are installing an optional processor daughterboard (B), you must also install the two  cache coherency filter cards in the two adjacent, vertical slots between the two processor  daughterboards on the processor controller board.
     (See 'Processor-daughterboard component locations' for the location of the cache coherency filter card A and  the cache coherency filter card B connectors.)
  6.  The server comes with a processor installed in connector A1, on the standard processor daughterboard (A).

     If you need to install additional processors, install them in the following order:
      A1, A3, A2, A4

     If you need to install processors on the optional processor daughterboard (B), install them in the following order:
      B1, B3, B2, B4

  7.  If you are replacing a failed processor, verify that you have selected the correct processor for replacement.
     To do this, remove the front bezel (see 'Removing the front bezel') and check the LEDs on the LED card at the front  of the processor housing assembly, above the processor fans, to see which LED is on.
  8.  If you replaced a defective processor, you must manually enable the processor slot in the  Configuration/Setup utility program.
     In this case, the system does not automatically access the Configuration/Setup utility program to enable the  processor slot.
     See 'Processor settings' for additional information.


The processors in the server reside on processor daughterboards.
The standard processor daughterboard (A) and the optional processor daughterboard (B) reside in separate cages on the processor controller board.
All of these components reside in the processor housing assembly.

Note: Refer to the 'Start Here' section of this Server Library for a detailed, exploded view of the processor housing assembly.


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