Power supply Ok.But CPU fans started with seconds It's stop.
Asrock PIV mother board with Intel CPU.When I switch on,CPU fan start.Suddenly stop.I check power supply by shorting 14 and 15 pins together.Then power supply switch on:then I check voltages orange 3.3.Power good line also ok.Then I decide power supply is good.Likewise problem may be in motherboard,CPU or ram.(On board VGA)IDE and all PCI cards removed.
Then I remove ram and switch on.CPU fan started then suddenly stopped.
I forgot tell you.If I switch on PC then fan started and stop nor,Again I couldn't switch on.If I press switch on button no result.Then I disconnect power supply cord from PC.Again reconnect and switch on then same result.CPU fan started again stopped.
So what do you think?Can you support me to get correct solution for this.I need to finalize problem in rams,mother board or CPU.
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Firstly, disconnect everthing from the Power supply EXCEPT the motherboard
1. Does the fan on the CPU spin when switching on?
Double check power switch connections to motherboard, sometimes if connected incorrectly, it may stop the board from powering up.
2. Attach the PC speaker to motherboard and remove RAM, REMEMBER to follow all antistatic rules when doing anything inside the computer. Switch machine on and listen if it makes a sound. if it does then the motherboard is fine.
Have you recently fitted the board yourself?, if so make sure it is not earthing on to the casing.
if this board has AGP slot, try to use AGP card inspite of PCI display card .. second thing when u power up the board . short its crystal oscillator for 2 second during switching on ..by screw drivers..if if it will not provide display .
then open fan & reinstall CPU .. if cpu is OK ( only can be tested on other board ) ..then something is wrong with Northbridge ../ or power supply mosfet of board if fan is not running ..
First remove the Ram and boot the system without it. If you hear continuous two beeps, then the problem is with the Ram, you need to replace it. If nothing happens, then your cpu or your motherboard is gone.
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its most likely either your power button or power supply having an issue ensure the power buttons wires are all connected correctly as per the key for the motherboard and if its still not starting try using a different power supply if its still not working than its most likely a dead motherboard
If you've installed the cpu and hooked the fan to the power supply plug, which is just left of the cpu mount, then the board if connected to the power supply cables, it should start up. Regardless of the front switches. However, you probably don't want to start plugging in the power cord until you have all of your components in place and ready to close up the case. First you can create a shock by just touching the board and that can damage the board. (I speak from my own experience :-( .
But once you get the power switch plugged into the board that should take over turning the rear power supply on and off (Including the cpu fan)
Good Luck and don't forget to leave a rating, based on my solution.
OC failure = over clocking failure. Make sure the CPU fan is clean, free from dirt & dust. Check CPU fan plug is connected correctly. If the CPU fan still stops after a few seconds replace the CPU fan.
It's harder to find just a fan to fit your heatsink, which sits on your CPU. It is easier to find a new heatsink \ fan combo for your Intel. Use your manual to find what Intel chip is on your board. Use that information & search google for a heatsink & fan combo. Pay close attention to how your current heatsink is mounted to the Gigabyte board.