Mitsubishi Electric Apricot LS series Owner's Handbook Manual page 53

M o t h e r b o a r d f e a t u r e s a n d u p g r a d e s
5/16 LS HANDBOOK
4. Refit the heatsink support, making sure that it is correctly and
fully seated on the pins. It should snap into place.
 This bracket may not be fitted with some heatsink designs,
or may not be needed with the the new processor.
5. Refit the chassis metal strut to its original position, making
sure you correctly tighten the screws.
 Check also the screws securing the expansion riser card are
refitted and tightened.
6. The upgrade or overdrive processor may have its own cooling
fan built into the heatsink. This will have a power lead that
will need to be connected to PL3 on the motherboard,
(marked '16' on the motherboard diagram).
 If the fan has only a two pin connection, ensure it is
connected to pins 1 and 2 of PL3.
7. Now adjust the processor multiplier speed links on the
motherboard, (Jumpers 5 to 8) in conjunction with the new
processor's data sheet. The processor will set the BIOS and
the BX chipset, ensuring that the required bus frequency is
set automatically.
WARNING
This processor requires continuous airflow.
Ensure that the supply lead for the front casing fan is still connected to
PL2 to ensure adequate airflow over the processor assembly.
8. Return the floppy drive assembly to its original position.
9. Return to their original position any expansion cards that had
been removed earlier, then refit and secure the system cover.