AdvicePC build - powering off after 5-6 minutes
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AdvicePC build - powering off after 5-6 minutesPosted:

cfichter
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Hmm. I'm a fairly experienced PC builder, I've been struggling with a new AMD build.

To keep this short for now - When booting into Windows 10 or Windows 11, everything is fine for about 5 minutes. Then power goes off. But it doesn't happen every boot.

This seems random and here is what is weird:
1) If I just boot to bios and wait, then go into windows, in general this works and machine does not power down.
2) I'm watching heat. I am seeing the processor spike to over 90 degrees celsius, I'm suspecting the shutdown is an auto-protect or something due to heat. Yet in bios I see the high heat initially but it does not shutdown. After the 5 minutes or so (even in Windows) the proc heat goes down to 40 celsius or so.
3) If I skip bios boot and just boot to windows 2-3 times, problem seems to go away and machine will run for hours no issues.

No system errors in windows provides any help.

I was very careful in mounting the plasma cooler and am confident I have the right amount of cooling paste binding proc to plasma cooler (watched many videos to see best strategy).

So I am slightly suspecting a mboard problem, using an inexpensive Gigabyte that is compat with proc and everything.

Any ideas for me to investigate based on this limited info? Have you seen this behavior before? Thanks
#2. Posted:
MichaelBay
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Sounds like a bad mount. Your CPU cooler is not mounted with adequate pressure I'd guess. Do you have an AMD stock cooler on hand, or any other cooler just to try and see if that's the difference?

I'd start there. In BIOS your CPU is under so little load that there won't really be heat generated. Hell you could boot to bios without a CPU cooler at all, on some systems.
#3. Posted:
cfichter
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Thank you VERY much for this advice. I'll give this a shot. I actually am seeing it heat up even in bios at least once, went to 130 degrees celsius.

My concern is tightening too hard - I don't want to damage the mboard or processor.
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MichaelBay
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cfichter wrote Thank you VERY much for this advice. I'll give this a shot. I actually am seeing it heat up even in bios at least once, went to 130 degrees celsius.

My concern is tightening too hard - I don't want to damage the mboard or processor.

This is a classic major concern of PC building. It always feels like youre putting too much pressure on the CPU itself. I've tightened down coolers so much where I thought "well, I might have just f***ed the socket" but the PC ran fine. Still, YMMV.

Easiest way to reality-check yourself is find a youtube video specifically where someone installs the same model cooler that you are using. This can be difficult if your cooler is rather uncommon. If that's the case, try and find another model cooler made by the same company for the same socket (AM4, 115x, etc).
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cfichter
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SOLVED - just to share for learnings - it wasn't too loose/tight, I was using the wrong pins on the mboard for the cooler pump.

The gigabyte mboard I have does not have a specific set of pins labeled for pump - and the manual isn't clear.

I originally had the pump plugged in to a 'Sys Fan' as the pin config and blocking peg things fit - but upon closer inspection I found a pin set called 'CPU Opt" and using that, the cooler turns on immediately on boot.

I suspect the Sys Fan was configured only to kick in at a certain temp so no voltage was going in there until case heated up.
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