Took the computer to work this morning, and it's starting up correctly again.

This make me wonder if it's a heat issue. I'm using the stock intel cooler on the cpu, and core temps are between 43° and 54°C at idle. I ran a stress test and saw temps of >70°C. Now, I'm no expert, but that seems a touch too hot.

Also, core 1 is consistently hotter than core 2 by 1-3 degrees at idle.

I'm running these tests in a very cool office, but at home the computer room is quite hot. I wasn't able to check core temps at home.

I've heard that stock coolers aren't always that good. Would it benefit from an aftermarket cooler and/or better thermal paste? How about just better thermal paste on the stock cooler?

Cheers,

Matt