Over heating issue

Xzane · Aug 14, 2015

Hi, I have been experiencing an issue with my pc this week. All of a sudden the case intake fan has started to spin at high speeds. At first I thought it was my cpu fan so I replaced it and I also replaced the heat sink, the problem still persisted so today I replaced the cpu but I still have the same issue.

This is the motherboard: http://www.foxconnchannel.com/ProductDetail.aspx?T=Motherboard&U=en-us0000220

Rogue Leader · Aug 14, 2015

Is your issue that the fan is spinning at high speeds or are you monitoring a program that is telling you the temperature is too high. The fan motor could be going bad, there could be too much dust in there, theres any number of things that can cause this.

Xzane · Aug 14, 2015

Fan is new, it has no dust at all.

Rogue Leader · Aug 14, 2015

Xzane :

Ok are you monitoring your system temps? Is the computer crashing? Other than the fan spinning loudly why do you think its overheating?

Xzane · Aug 14, 2015

Ive noticed that the on board graphics card heat sink is getting very hot? Could this be why the case fan is spinning so fast?

Xzane · Aug 14, 2015

The computer isnt crashing, it seems to speed up when I load programs or open new tabs with google chrome. I thought this was a cpu issue but its not.

Rogue Leader · Aug 14, 2015

If the case fan is spinning faster for some reason (and it is plugged into the motherboard) then the system can be telling it to spin faster. Now the heatsinks are always going to be very hot. But is there something you are doing now that you haven't done before that happens to be when the fan spins up? How old is this computer build?

Xzane · Aug 14, 2015

This is a oldish pc build, I just use it for the internet etc, I haven't done anything different. I have downloaded HWMonitor and the temps seem fine.

This is the motherboard: http://www.foxconnchannel.com/ProductDetail.aspx?T=Motherboard&U=en-us0000220

Rogue Leader · Aug 14, 2015

The pic is blurry, is the fan plugged into the motherboard or directly to the PSU?

If it is plugged in and its an older PC it could be a symptom of the circuits deteriorating which can happen especially on cheaper lower end equipment, or a new piece of software could be giving it a false temp signal telling it to spin up.

Xzane · Aug 14, 2015

the case fan is plugged into the motherboard. I unplugged it just to see what happens and the cpu fan started to speed up instead?

Rogue Leader · Aug 14, 2015

yes it will because its not being fed enough air. Something is running hotter than normal (probably the processor) or the computer thinks its running hotter than normal. Thats what is causing this issue. Unfortunately short of replacing the whole motherboard (since you already replaced the CPU) theres no way around this.

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Over heating issue

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