How to Test a Logic Board

By Anthony Smith

Mac computer users are usually loyal to the brand and often very attached to their machines. So when a hardware issue arises with the computer that might indicate a problem with the logic board, they want to know how to test it. The steps below detail how to use a utility that Apple provides with every machine to test the logic board and other hardware.

Step 1

Get the Install Disc 1 DVD that came with your computer and load it into the drive.

Step 2

Restart your Mac in either of these two ways: by selecting "Restart" in the main Apple menu or by pressing "Command-Control-Eject" at the same time on your keyboard.

Step 3

Immediately press the "Option" key and hold it down. The Startup Manager will open. Release the "Option" key.

Step 4

Wait until the watch that shows the progress of the action disappears, then select "Apple Hardware Test volume."

Step 5

That's all there is to it. The utility will indicate whether there is a problem with the logic board.

Tips & Warnings

  • According to website, you may want to run the Extended Test several times in a row as intermittent problems may not show up in every execution of the test.