Digital DECpc LPx/LPx+ Service Procedures
MCS Logistics Engineering - Nijmegen 65
Installing a Higher Performance CPU (LPx/LPX+)
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.
When installing an i486 microprocessor, make sure to align the chip with the outside
row of pins visible.
To install a higher performance CPU:
1) Turn off the computer.
2) Disconnect external devices, ac power, and monitor power.
3) Unlock and remove outside cover.
4) Lift up on the lever to release the CPU.
5) Remove the CPU, noting its pin 1 location.
6) Install new CPU.
7) Return release lever to its original position and then set all appropriate CPU jumpers.
8) Run BIOS Setup utility. Record new CPU's type, if necessary.
Figure 3 - 25 Installing a
Higher Performance CPU
(LPx/LPx+)
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