Newly built computer won't turn on

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JonBombDon

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Oct 5, 2013
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Hi, I just assembled a new computer and when I pressed the power button, led fan lights up for half a second and cpu fan moves then turns off. The power button led on my mobo is still on as well. I used the following parts: msi z87 gd65 mobo, i7 4770 cpu, 2 corsair vengeance low profile 8gb ea (16gb total), evga gtx 680 4gb, seagate ST1000DM003 hdd, in win grone case, and corsair ax850 psu. Is my power supply not enough? Would simply changing the psu solve my problem? I'm pretty sure all cables are properly connected

 
Solution
ingtar33
nope. the psu is strong enough for your machine. i suggest you first unplug the psu, and use the "bridge" method to jump start it (trick it to thinking you turned it on). here are some details on this method from corsair themselves. http://www.corsair.com/en/blog/testing-your-corsair-power-supply/ This won't start your system but should tell you if the psu is critically flawed, short of using an amp meter.

assuming your psu starts out next move will be to pull out the gpu, unplug the hard drives, pull out all but one stick of ram, and try turning the computer on (monitor plugged into the motherboard io panel). if the system doesn't start try to clr_cmos and try it again. if it still won't start pull out the last stick of ram...
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plp384

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Oct 5, 2013
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There could be a short...but that mobo is one bad mofo! Wow, wish I had the money for something like that. No matter what you should be able to at least reach the bios....It could be incompatible memory. But you seem to know what you are doing.
 
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pmdureska

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Sep 8, 2013
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well this is not a solution to your problem but it is very similar to my problem from my "breadboard build". i posted earlier today. i have similar components ( asus z87 deluxe mono, sea sonic 760w platinum series psi, 16gb corsair dominator ram and a 4gb evga gtx 770. the build seemed straightforward. i tried working backwards removing components and testing and same result. i now just have psi, connnected to mobo with cpu and stock cooler and when i hit the lit power button the cooler fan runs 1-2 sec then off. if you come across a solution PM me and if i run across the solution i'll PM you with what i found. i think it may be some type of automatic shut down to protect the cpu but i cannot rule out some type of short int he board. yes i have double checked all my power connections and cables. just stumped and up against a wall here.
 
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ingtar33

ingtar33

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Dec 17, 2012
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nope. the psu is strong enough for your machine. i suggest you first unplug the psu, and use the "bridge" method to jump start it (trick it to thinking you turned it on). here are some details on this method from corsair themselves. http://www.corsair.com/en/blog/testing-your-corsair-power-supply/ This won't start your system but should tell you if the psu is critically flawed, short of using an amp meter.

assuming your psu starts out next move will be to pull out the gpu, unplug the hard drives, pull out all but one stick of ram, and try turning the computer on (monitor plugged into the motherboard io panel). if the system doesn't start try to clr_cmos and try it again. if it still won't start pull out the last stick of ram, and plug in the other stick of ram. try again. if it won't start move that stick of ram into another slot and try again. if it still won't start you probably have a faulty motherboard, a short or installed the cpu incorrectly.

pull the motherboard out of the case, make sure there is nothing behind it, make sure the spacers are propperly installed. Take the cpu cooler off and take the cpu out, check the pins in the socket, make sure none are bent. assuming everything in kosher, put it all back together and try it again. if it still won't start, contact MSI or the vender you got the motherboard from and return it. the chances are it's a bad motherboard at that point (not 100% sure, but better then 50%, so the odds are in your favor that a new motherboard will solve the problem)
 
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Solution
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JonBombDon

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Oct 5, 2013
13
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10,510
I'll try all of that when I get home. The believe the manual states to put the ram in 2 and 4 slots, I put them in 1 and 3 and forgot to change, could that be the problem?
 
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pilau

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Dec 9, 2013
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wow im having the same issue... although clearing the cmos didnt do anything for me. Ive swapped 3 mobos, 2 cpus, 2 psu's, 3 dif types of compatible RAM... Ive cleared the cmos, left battery out for 2 minutes... practically everything i could think of, and some of the instructions per the forums and youtube.

im totally stumped. Im betting on my HSF though... will swap it out tmrw.

glad you found a solution tho! =D
 
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