To Remove a Processor

To Install a Single Processor

To Remove the Termination Card

To Install the Termination Card

To Install a Second Processor

To Set the Processor Speed

Processor Upgrades - Introduction

If your motherboard has one processor, you can upgrade the computer by replacing this processor with a faster one, or by installing an application processor.

If your motherboard has two processors, you can upgrade by replacing these processors with two faster processors.

If you install two processors, make sure they have:

• Identical speeds and voltages.
• The same stepping or a difference of no more than one stepping. Processor stepping is designated by a five-letter code, for example, SL28R, printed on the top edge of the S.E.C. cartridge.

Note:

If there is only one processor on a motherboard, it must be fitted in the boot processor Slot 1 connector. In a single-processor configuration, you must install a termination card in the empty application processor Slot 1 connector to ensure proper operation of the computer.

Warning:

In all instances you must remove the rear drive carrier and the main cross strut of the chassis to safely access the system processors.

The rear drive carrier assembly has a large cooling fan fitted to the rear. It is essential that care is taken with this. It must be correctly refitted and reconnected after you have finished your work.

To Remove a Processor

If you are upgrading a single processor, you need to remove the existing processor

1. Take suitable anti-static precautions.
2. Turn off the computer, disconnect the computer’s power cord, and disconnect all external peripherals.
3. Remove any peripherals that block access to the processor.

4. Processors supplied to you by Mitsubishi will have a standard heatsink. However, if your existing processor has a fitted fan, remove the fan heat sink power cable connector (B) from the motherboard fan connector (C).
5. To remove the processor from the Slot 1 connector, press in on the latches (A) and pull the processor straight up as shown above.
6. Store the processor in an antistatic package.

To Install a Single Processor

To install the processor:

1. Take suitable anti-static precautions.
2. Turn off the computer, disconnect the computer’s power cord, and disconnect all external peripherals.
3. Remove any peripherals that block access to the boot processor Slot 1 connector.

4. If a processor is installed in the boot processor Slot 1, remove it. See "How to Remove a Processor" as previously detailed.
5. Remove the new processor from its antistatic package.
6. Orient the processor (B) so that the heat sink faces the back of the motherboard. Slide the processor into the retention mechanism (C). Ensure that the alignment notch in the S.E.C. cartridge fits over the key in the Slot 1 connector.
7. Press down firmly on the processor until it is seated in the boot processor Slot 1 connector and the latches (A) on the processor lock into place.
8. Processors supplied to you by Mitsubishi will have a standard heatsink. However if your upgrade processor has a fan, attach the small end of the power cable to the fan connector on the S.E.C. cartridge, then attach the large end (D) to the CPU 1 fan connector (E) on the motherboard. The fan connectors are keyed so they will only connect one way.
9. Ensure there is a termination card in the application processor Slot 1 connector if one is not already installed.
10. Replace any peripherals that were removed in Step 3.
11. Set the processor speed. See "To Set the Processor Speed" for instructions.

To Remove the Termination Card

If you are installing a second processor you must first remove the termination card:

1. Take suitable anti-static precautions.
2. Turn off the computer, disconnect the computer’s power cord, and disconnect all external peripherals.
3. Remove any peripherals that block access to the application processor Slot 1 connector.

4. Press the latches on the termination card (A) inward to release it from the retention mechanism.
5. Hold the termination card by its top edge and carefully rock it back and forth until the edge connector pulls free from the Slot 1 connector.

To Install the Termination Card

If you remove the application processor you need to install the termination card before you can turn the computer back on:

1. Take suitable anti-static precautions.
2. Turn off the computer, disconnect the computer’s power cord, and disconnect all external peripherals.
3. Remove any peripherals that block access to the application processor Slot 1 connector.

4. Slide the termination card (A) into the retention mechanism (C). Ensure that the alignment notch (B) in the termination card fits over the key in the application processor Slot 1 connector.
5. Press down firmly on the termination card until it is seated in the Slot 1 connector and the latches on the termination card lock into place.

To Install a Second Processor

To install the second, or application processor, you must ensure that the second processor is identical to the first processor, (see the warnings and guidelines on page 6 of this chapter) if it is:

1. Take suitable anti-static precautions.
2. Turn off the computer, disconnect the computer’s power cord, and disconnect all external peripherals.
   NOTE:
   The second processor must be identical in speed and voltage to the first processor. The second processor also must be the same stepping as, or no more than one stepping higher than, the first processor.
   
3. Remove any peripherals that block access to the application processor Slot 1 connector.

4. If a termination card is installed in the application processor Slot 1 connector, remove it. See "How to Remove The Termination Card".
5. Remove the processor from its antistatic package.
6. Orient the processor (B) so that the heatsink faces the back of the motherboard. Slide the processor into the retention mechanism (C). Ensure that the alignment notch in the S.E.C. cartridge fits over the key in the Slot 1 connector.
1. Press down firmly on the processor until it is seated in the application processor Slot 1 connector and the latches (A) on the processor lock into place.
2. Processors supplied to you by Mitsubishi will have a standard heatsink. However if your upgrade processor has a fan attached, connect the small end of the power cable to the fan connector on the S.E.C. cartridge, then attach the large end (D) to the CPU 2 fan connector (E) on the motherboard. The fan connectors are keyed so they will only connect one way.
3. Replace any peripherals that were removed in Step 3.
4. Set the processor speed. See "To Set the Processor Speed" for instructions.

To Set the Processor Speed

Set the processor speed after you have installed or upgraded the processor. This procedure assumes that the computer is turned off, the cover is off, and the configuration jumper block (J7E1) has the jumper set on pins 1-2 for normal mode.

1. Take suitable anti-static precautions.
2. Locate the configuration jumper block J7E1 from the illustration of the motherboard.
3. Move the jumper to pins 2-3 as shown below to set configure mode.
   
   
4. Replace the computer cover, turn on the computer, and allow it to boot.
5. The computer starts the Setup program. Setup displays the Maintenance menu.
6. Use the arrow keys to select the Processor Speed feature and press <Enter>. Setup displays a popup screen with the available processor speeds.
7. Use the arrow keys to select the processor speed.
   For example, select 266 for a 266 MHz PentiumŽII processor. Press <Enter> to confirm the speed. The Maintenance menu reappears.
8. Press <F10> to save the current values and exit Setup.
9. Turn off the computer.
10. Remove the computer cover.
11. On the jumper block (J7E1), move the jumper back to pins 1-2 to restore normal operation as shown below.
    
    
12. Replace the cover and turn on the computer.