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Re: CPU fan not running
Hi im josh in cebu phils. friend may i help you. i had encountered a lot of this problem.then i found out that it was a motherboard problem and a supply problem. all you have to do first is check the connections of your supply to the mainboard.check if two pwer cables are connected. 2nd remove the extra devices such as sound card or cd room to check weather your supply has enough powe to make you mainboard and hdd work. if still the same check your motherboard manuals for power rating needed and if the pwer suppluy passed and still not work.replace now your mainboard with the new one.because it is now the problem.good luck bro.hopei helped you.vote pls,so that i'll know if i helped you so.thnks
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Check the bios for any cpu overclocking settings and set it back to standard settings. Renew also the thermal cooling paste between the cpu and the cooling fan. See if the cpu fan is running when the pc starts.
Be VERY carefull when you remove the cpu cooling fan and take care not to damage the cpu. And take antistatic precautions when you work on the mainboard.
If you have not tryed this before let a expert do the job.
First, make sure you plug the power from the fan back into the motherboard & try it again. Did you do anything else besides just pulling out your old hard drive & putting the new one in? The CPU fan is completely independent of the CPU fan. You can start up you system without ANY hard drives & the CPU fan will come on if it's plugged in & the power supply is working etc. If you make sure the fan is plugged in correctly & the fan still doesn't come on, I suggest you temporarily put your old hard drive back in & firing things up. I'm sure you will find that the fan still doesn't work.
All that said, if the CPU fan isn't working (& everything else is), then it's a bad fan or motherboard. It's not necessarily a bad motherboard. Sometimes there are jumpers that control that sort of thing. I'm not sure exactly what that motherboard does. I have had this exact motherboard for years & as long as the fan is plugged in (& the power supply is working), when you start things up, the fan comes on.
One last thought, try flipping the power supply switch in the back to reset the power supply before you press the button in the front. Good luck...
even though its new could still be bad processor, power supply, or the motherboard its self.try to jump it without the power connected. should be pin 4 and 6. double check that though in your manual.jump it with a wire but dont touch any other pins or you will fry the MB.
you could try removing power lead then remove battery from m/b for 5 mins this will reset bios back to maufacturers settings then replace battery and power then try boot up if no luck then change motherboard
When the CPU overheats it shuts down especially if you overclock it.
Did you put any heatsink compound between the CPU and the heatsink (this aids heat transfer from the CPU to the heatsink/fan)?
Your BIOS may have a setting that can adjust the CPU fan speed/temperature.
You can install additional fan/s in the case to draw more air into the computer case.
To further cool the CPU, you might have to install a better and more efficient cooling heatsink/device/fan on the CPU.
Sounds like a thermal issue. New power supply might be overheating the cpu causing the thermal sensor in the cpu to automatically shut down so the cpu doesn't fry. You could try adding a case fan or two plus upgrading the spu heatsink/fan. Hope this helps.
what made you change the power supply to begin with? Most cpu fans run off the motherboard, but the motherboard initially gets all voltages from the Power supply to begin wth. Did you assume that because cpu fan wasn't running to begin with, that the original power supply was bad. Not a bad assumption but one that needed verification before changing out a power supply. So it seems at this point that you have an unverified bad power supply, a possible bad motherboard, and a known good cpu fan. Plus at ths point you really don't know of the new power supply is good yet until you see something electrical run with it.