Guy at the Des Moines repair shop taught me to reseat RAM before quoting a new board
Last month I picked up a laptop from a small shop in Des Moines that had been quoted $340 for a new motherboard by a big box store. The owner, Dale, sat me down at his bench and pulled the RAM sticks, wiped the contacts with a pencil eraser, and put them back in. Booted right up on the first try. He told me he had seen that exact fix save people money over 200 times in 15 years. I started doing that check first on every machine that comes through my shop now, and three of my last nine jobs were fixed in under five minutes with zero parts. It is funny how a simple thing like a dirty contact can look like a dead board to someone in a hurry. How many of you have a go-to trick like this that has saved you from an expensive misdiagnosis?