H136522 - PENTIUM PRO REPLACEMENT PROCEDURE IN SERVER 325/330
 
 TEXT:
 Before replacing, upgrading, or adding an additional Pentium Pro
 Processor in the IBM PC Server 325 (8639) and PC Server 330
 (8640), it is important to verify that Server has the latest
 BIOS level.
 The latest BIOS for the PC Server 325 and 330 can be found on
 the IBM PC Co. BBS by searching for "PC Server 325/330 BIOS."
 
 Use the following procedure BEFORE replacing, upgrading or
 adding an additional Pentium Pro processor:
 
 1. Perform a shutdown of the operating system and then reboot.
 
 2. When the IBM logo screen appears, check the BUILD ID in the
    lower left hand corner of the screen.  An example of a BUILD
    ID is RAET29AUS.  The 29A is the BIOS level.  Compare this
    level with the latest BIOS level on the IBM PC Company BBS.
 
 3. If the system BIOS level is at a lower level (lower numeric
    value) than the latest BIOS level available on the BBS,
    download the latest BIOS image from the BBS, and update the
    system BIOS prior to installing the processor.
 
 .------------------------IMPORTANT-----------------------------.
 |                                                              |
 |  Diskette images are customer installable. Customers should  |
 |  review any "README" files located on the diskette for       |
 |  installation information.  Contact the IBM PC HelpCenter at |
 |  800-772-2227 if download/installation assistance is needed. |
 |                                                              |
 |  IBM PC Server files are located in Directory 22 on the PC   |
 |  Company Bulletin Board Service (BBS) at 1-919-517-0001 or   |
 |  tieline 255-0001.                                           |
 |  The files may also be downloaded via the Internet from the  |
 |  IBM PC File Library by searching the following Internet URL:|
 |  http://www.pc.ibm.com/files.html                            |
 |______________________________________________________________|
 
 The Intel Pentium Pro processor has an area to store microcode
 patches.  This microcode is stored in the BIOS of the PC Server
 325/330 and is loaded into the Pentium Pro during POST.
 Each Pentium Pro processor has a stepping level.  Each stepping
 level requires a specific microcode patch.  The latest level
 BIOS will contain all the microcode patches for all processor
 stepping levels.
 When the Server POSTs, a specific microcode is loaded to the
 Pentium Pro processor depending on its stepping level.
 If the BIOS is downlevel, the processor may not receive the
 correct microcode because it is not present in the downlevel
 BIOS.  The processor will not operate properly without the
 correct microcode patch.
 
 Intel and Pentium are trademarks of Intel Corporation.
 
 February 7, 1997