Solved fans on new build spin 4 a second then stop

September 2, 2011 at 21:10:45
Specs: ubuntu, intel core i5 2500k/8GB DDR3
i just built a new computer but every time i press the power button the 3 fans spin for less then a second and then stop. Two of the fans are connected directly to the power supply.The other is connected to the motherboard but still stops spinning in less then a second after i turn it on and nothing comes up on my computer monitor. I think i might have a defective power supply

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✔ Best Answer
September 4, 2011 at 21:59:02
I would never use a cheep power supply that came with a case, they are probably less reliable than just about anything else (if they have to give them away). Look for a power supply with a single 12volt rail and at least 80% efficient. If you have a video card (you did not say) or you may soon add one, make sure it has enough to power it as well (wattage and 12V amperage).

You do not need 3 or more fans, you need one at the rear blowing out, if it makes you happy you can use one in the front blowing in but this is not needed. You do not need side fans messing up your through the case air flow (added turbulence).

Bench test means absolutely minimum connected to the motherboard.
Are you using the stock CPU fan? If an aftermarket fan, are you installing it properly with the correct amount of thermal compound?
List detailed specs so someone can tell you if something is not compatible.

You have to be a little bit crazy to keep you from going insane.



#1
September 3, 2011 at 01:08:13
List the system specs including PSU. Pull everything out and test them outside(benchtest).

We can not fight new wars with old weapons, let he who desires peace prepare for war - PROPHET.


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#2
September 3, 2011 at 05:50:05
-Antec EA-380D(came with the chassis)
-intel core i5 2500k
-intel dz68db motherboard
-8GB DDR3 RAM
-barracuda Green 5900RPM

I pulled everything out of the case and it still had the same problem.


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#3
September 3, 2011 at 05:57:44
Bad power supply. It should stay on if it was good.

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Related Solutions

#4
September 4, 2011 at 21:59:02
✔ Best Answer
I would never use a cheep power supply that came with a case, they are probably less reliable than just about anything else (if they have to give them away). Look for a power supply with a single 12volt rail and at least 80% efficient. If you have a video card (you did not say) or you may soon add one, make sure it has enough to power it as well (wattage and 12V amperage).

You do not need 3 or more fans, you need one at the rear blowing out, if it makes you happy you can use one in the front blowing in but this is not needed. You do not need side fans messing up your through the case air flow (added turbulence).

Bench test means absolutely minimum connected to the motherboard.
Are you using the stock CPU fan? If an aftermarket fan, are you installing it properly with the correct amount of thermal compound?
List detailed specs so someone can tell you if something is not compatible.

You have to be a little bit crazy to keep you from going insane.


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#5
September 5, 2011 at 08:19:02
I did some research on my power supply and it seems decent. Antec sent me some instructions to test if it is defective and it is. I have already sent it back for a warranty replacement.

I have 2 fans at the back and blowing out and one in the front.

I did a bench test and it still didn't work. i am using the stock CPU fan and I made sure it was installed correctly.


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#6
September 5, 2011 at 18:47:36
Thanks for letting us know. Good luck, it should be a good system when you get it running.

You have to be a little bit crazy to keep you from going insane.


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