Gateway 6-Bay mBTX PRO User Manual page 148

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CHAPTER 13: Adding and Replacing Components
Remove the seven system board screws.
Lift the system board up and out of the case.
Align the new system board on the screw holes in the case, then secure it into the case
with the screws.
If your replacement system board does not include a processor, go to the next step.
-OR-
If your replacement system board includes a processor, go to
Caution
The heat sink has Thermal Interface Material (TIM) located on the bottom
of it. Use caution when you remove the old heat sink or unpack the new heat sink
so you do not damage the TIM.
Loosen the four screws that secure the heat sink to the system board, then remove the
heat sink.
Release the processor from the old system board by pushing down on the lever and then
lifting it completely up.
Remove the processor from the old system board.
Install the processor onto the new system board making sure that Pin 1 on the processor
(indicated by the silk-screened arrow on the corner of the processor) aligns with Pin 1 on
the processor socket (indicated by the absence of a pin hole in the processor socket), then
return the lever to its locked position.
Place the heat sink on the system board, then tighten the screws that secure it to the system
board.
Install the power supply into the case, then install the three screws to secure the power
supply to the case.
Screws
Screws
Step 23.