Last week I had a newly referred customer tell me that she was shown a power supply tester hooked up to her computer by a Geek Squad member and "one of the little lights wasn't working" and they told her she needed a new power supply. She brought it to me since they wanted $240 for parts and labor. I listened to ther beep code, shut it down, and re-inserted the ram that was ajar. Total cost, $25. I told her the light that wasn't showing was for legacy ISA slots, and they should have known that.
