I just thought I'd post this (new to here, btw). I build media pc's from friends and family and had a weird issue with one I just finished kept powering off after awhile. It seemed ok on idle, but record or process any video and a few min it would just shut off. Usually I just build them, and they work. So I did some searching and found this, and other forums where the issue of pc's powering off for no reason was talked about.
This directed me to cpu heat issues, as well as other heating issues and also software issues causing these "out of the blue" shut downs. And then to programs like SensorsViewPro and speedfan.
After installing these two, my cpu was running red hot. At idle it was around 57, but toss some processing at it and the thing went up to over 70.
The cpu fan was running ok, so I turned off the pc and pulled the fan/heatsink and noticed it wasn’t "stuck" to the cpu. In fact there was only a trace of gook on the bottom of the heat sink.
Looking closer, I discovered the plastic outline thingy on the mb that the sink fits onto or into was not lying flat on one side to the mb surface. There are four plastic pull tabs that release it, and I realized it was not snapped in all the way. So I re attached it, pushed in the four tabs, cleaned and regooped the cpu and attached the sink/fan.
Well the cpu temp is now running around 32 during video processing.
This was the strangest thing I ever came across and in originally putting all the parts together, I did not realize or notice the mb cpufan bracket was not flat on one of the sides to the mb. Thus, the sink was not touching the cpu. Poor thing was running un-sinked.
A little longer and I could have had a great cheese sandwich maker.
Wonder how many mysterious pc shut downs and heating problems are caused by this simple headache?
This directed me to cpu heat issues, as well as other heating issues and also software issues causing these "out of the blue" shut downs. And then to programs like SensorsViewPro and speedfan.
After installing these two, my cpu was running red hot. At idle it was around 57, but toss some processing at it and the thing went up to over 70.
The cpu fan was running ok, so I turned off the pc and pulled the fan/heatsink and noticed it wasn’t "stuck" to the cpu. In fact there was only a trace of gook on the bottom of the heat sink.
Looking closer, I discovered the plastic outline thingy on the mb that the sink fits onto or into was not lying flat on one side to the mb surface. There are four plastic pull tabs that release it, and I realized it was not snapped in all the way. So I re attached it, pushed in the four tabs, cleaned and regooped the cpu and attached the sink/fan.
Well the cpu temp is now running around 32 during video processing.
This was the strangest thing I ever came across and in originally putting all the parts together, I did not realize or notice the mb cpufan bracket was not flat on one of the sides to the mb. Thus, the sink was not touching the cpu. Poor thing was running un-sinked.
A little longer and I could have had a great cheese sandwich maker.
Wonder how many mysterious pc shut downs and heating problems are caused by this simple headache?
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