Desktop Repair

How these faults present

• Nothing happens at the power button: A failed supply or a short on the board Test the supply on a load tester.
• Fans run, no display: Memory, processor seating or a graphics fault Test with one memory module and a good card.
• Random restarts: Heat, an unstable supply or failing memory Log temperatures and load test the supply.
• Very slow with the drive always active: A drive retrying on unreadable sectors Read the drive health record and replace it.

Where this differs by device

• Desktop parts are modular, so a supply, card or drive is a straight swap rather than a board level job.
• Older boards often show bulging capacitors, a visible fault rather than a guess.

Where engagements like this go wrong

• Replacing the motherboard when the supply is the actual fault.
• Leaving every memory module fitted, since one bad module stops the machine.
• Reinstalling drivers on a machine that will not power on.

What changes the cost

• The part, since a supply or card is a swap and a board is not.
• Age and availability of parts for older boards.
• Whether the machine can be left in place or needs collecting.