Service Procedures Digital DECpc LPx/LPx+
66 MCS Logistics Engineering - Nijmegen
Installing a Higher Performance CPU (LPx 560/566)
CAUTION
Before installing a new CPU chip, update the computer BIOS. Do not wait to update
the BIOS until after installing a new CPU chip.
NOTE
Earlier versions of the CPU module did not have a voltage regulator card (66 MHz
version) as shown or jumper card (60 MHz version).
To install a higher performance CPU:
1) Remove the CPU module.
2) Lift up on the lever to release the CPU.
3) Remove the CPU, noting its pin 1 location.
4) Install new CPU.
5) Return release lever to its original position and then set all appropriate CPU jumpers.
6) Run BIOS Setup utility. Record new CPU's type, if necessary.
Figure 3 - 26
Installing a Higher
Performance CPU
(LPx 560/566)