PC turns on then turns off then turns on again and works normally

Hello, thanks beforehand for all your help :D

A friend is selling his pc, and i might buy it.

here are the specs:

corsair ax1200 psu
Core i7 950
evga x58 ftw3
evga gtx 580 Call of duty versión
1tb hd

now he says that always has been like this: when he first turns the pc on, after it was first plugged into electricity, it will turn on, then off, then on again, and after that Works with no problem

if i dont unplug from electricity after turning off, it wont do that, it will turn on with only 1 try. but once i unplug the pc from electricity (of course after turning off) then it has to do the same again, i think its called "cold boot"?

i just did around 16 hours of prime95 large fft with no problems, so aparently is true what he says, that the pc does that only after unplug and 1 time only.

what can be that? its a problem? or is something normal for that configuration? is something normal for that kind of psu/mobo? its like a security measure etc?

btw i got cpu temp of 84°C on that core i7 950 on prime 95. its ok? (its stock no oc, with stock cooler)

thanks :D i hope you can help me
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    It's not normal for that configuration. In fact I'd ask you to breadboard the system and see if the issue is persistent. Unless the system is being sold for dirt cheap, I'd ask you to stay away from it since you're not going to get any form of warranty on it. The 1200W PSU is also overkill and will only be used to half it's output. Given that it has such a high headroom the PSU can be taxed for a longer period of time but in retrospect, I'd suggest that you go through the rest of the specs, pass it on here(ram, boot drive, case) and see if the issue exists after a breadboard. You should also try and power the system off a reliable, branded 650W PSU and see if the system has a mid booting reboot.

    You should also see if there are any BIOS updates and that the rest of your device drivers(namely chipset) are up to date?
    Breadboarding, stripping it down to the basics for troubleshooting
    If you have to read this, something is very wrong with your PC such that you need to fully troubleshoot your system at the most basic hardware level, Breadboarding. A little background: breadboards were what we called our lab equipment in electronics... Read More
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