Any way to test a 2009 iMac card?

A month ago I bought imac 27 "used the late variety of 2009. When I got home, I noticed that the fan ran full speed all the time. I ended up finding a fan utility which allow me to manually set that. I assumed it was a defective HARD drive heat sensor.

Fast forward to yesterday morning. My mac wouldn't start for various reasons. Each of them looked like HARD drive failure. I visited the Genius bar and it took several tries for the guy to start it in diagnostic mode. All tests ran good except for the heat sensor. He did a P Ram (or NV ram) reset expects that it would open. It seemed that this was the case, but then he started doing random reboots in the middle to use me in the store. He then said that it looks like the logic board failure and I must go into a repair party mac store 3rd to get it replaced.

Isn't everyone agree with this assessment?

Wow. I was able to initialize after my message above. I ran a system report is it only show that I have 8G of ram. This machine has 16G. He has had 16G since I bought it. Who never changed until I saw this morning.

Tags: Mac

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