New build will not POST, powers on for 1-3 secs and then powers off

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Remorhaz

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Aug 3, 2010
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Specs:
MSI Big Bang-XPower LGA 1366 X58
i7-930 2.8GHz
Cooler master Intel Core i7 compatible V8 RR-UV8-XBU1-GP
Corsair Dominator-GT 12GB (6 x 2GB) DDR3 1866
XION Power Real XON-1100P14HE 1100W ATX 12v v2.2 / EPS 12V v2.91 / SSI 2.92 SLI Ready Power Supply
Crucial RealSSD C300 128GB Sata III
x2 EVGA 01G-P3-1465-AR GeFroce GTX 465 (Fermi) 1GB 256-bit GDDR5

(If I'm missing anything necessary please let me know, I think I got all of the important components.)

I put the entire build together and the first time I powered the system on it turned on and ran fine but had no POST (was powered on for about twenty seconds, no trouble). I was able to power it off holding the power button for 3 seconds. On a second and any subsequent tries to power the machine on it would run for 1-3 seconds and then immediately power off. I've combed the wiring several times for errors in putting it together but am confidant that is not the problem - from what I've read as long as the 8-pin connector (#2, not #3) and 24-pin connector are on I should at least be able to have continous power. Both of these are plugged in, the 8-pin using two four-pin connections. The #3 8-pin power connectors are not connected.

I've also tried using a separate power supply. I did *not* remove any components when I swapped power supplies, however I did unplug everything. I then plugged in only the 8-pin and 24-pin power connections and received the same problem.

When I get home I'm going to try remove everything and try the board+PSU+processor+1 stick of ram at a time on my tabletop, and I'll also try this configuration with the second power supply.

I was just wondering if there were any other possible solutions or cuplrits that I may have missed? I know resetting the CMOS is a common suggestion but I'm unsure how to do this - I'm a novice builder at best. If all of the above fails I'll try reseating the processor and reapplying the thermal paste/fan, but I'm relatively confidant I did both of those things correctly (I used a smal X of thermal paste on the processor, and I lined it up with the arrow pointing to the arrow on the mobo. If I end up reseating the processor I'll try the grain of rice method for the paste.)

All components are new fresh out of the box. Error code before the system shuts up is 68.

Thanks for any help!
 
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I'm also unfamiliar with the information needed on the power supply that is regularly asked for, so here's the link. I hope this helps.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817190025
 
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Test it on the table top and let us know the outcome. Do not put the anti-static bag under the MB as it's electrically conductive.
 
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I did a tabletop test with only the CPU, PSU, 1 stick of ram, and CPU fan. Two four pin connectors were connected to power jumper 2 (the top 8 pin connector), the CPU fan was plugged in, and the 24 pin power connector was plugged in.

Originally I tried with one ram in the first black slot (second slot closest to the CPU) as designated by the instruction manual. This did not resolve the problem - it still powered off 1-2 seconds after powering on. I tried a second ram stick in the same slot with no improvement. I then tried the same ram stick in the blue slot closest to the CPU and I got power as well as 3 post beeps. (They seemed long to me but I looked up post codes and 3 long beeps is a keyboard error, that didn't make sense so it might be 3 short post beeps.)

Ideas, or next step? I'm inclined to think its a faulty MOBO but some feedback would be wonderful.
 
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Re-seat the CPU, sometimes the pads on the CPU don't make full contact and in a lot of cases re-seating fixes the problem. When you have the CPU out closely examine the socket for bent/damaged pins.
 
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Is it possibly a ram compatibility issue? I've seen people successfully use corsair dominator ram before but the board is listing 1800 ram as compatible when mine is 1866.

I'll try the reseat tonight, will post results in the morning.
 
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Yes it could be as it natively supports 1066 and anything above that is overclocked. But do the CPU re-seat 1st to eliminate that as a problem.
 
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Table top tests continued:

Reseated the processor. Made sure to check very closely that it was seated correctly the first time before pulling off and that there were no bent pins when I took it off - neither was the case. Upon power up I had the same problem.

I also had a friend bring in some different ram to test - Corsair XMS3 DDR3 1600. I know for sure I've seen this ram used successfully with this board. It demonstrates the same problem, after power up it turns off about 1-2 seconds later. When the ram is moved to the non-primary (blue slots) I get 3 post beeps.

So in summary - I've tried two separate power supplies (one that was new, another that is known to work in my old machine) two separate rams and reseating the processor as well as checking for bent pins. None of them resolved the problem.

Is there anything else I should try or does this conclude in a bad mobo?

If you need any additional specs on the stuff I've tested let me know. Thanks again for the help! Its much appreciated.
 
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Unfortunately I don't have another power supply available to test. The only other one I have is my old Enermax that's rated for a max of 600W. The PSU is an Enermax NoiseTaker II, model EG701AX-VE(W).

If I had another one to test I surely would. :(
 
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I've skimmed through the thread so forgive me if I suggest something that's already been posted.

There's lots of possible causes in this case.  However, PSU appears most likely.  The first thing I'd like to ask is what state are you powering the machine from?

Also, are you using 1 or 2 graphics cards when you've been troubleshooting?  I haven't seen that mentioned anywhere.
 
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Originally I powered up with the entire system put together (12g ram in six sticks, two GPUs in SLI, HDD, etc etc.) All subsequent tests have been tabletop tests where I took everything out of the case and assembled it with only the motherboard, PSU, CPU, 1-2 sticks of ram in various slots (depending on what I was testing) and the CPU fan.
 
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Remorhaz said:
assembled it with only the motherboard, PSU, CPU, 1-2 sticks of ram in various slots (depending on what I was testing) and the CPU fan.
Click to expand...

So no graphics cards, whatsoever?  This could explain the beeps you experienced earlier.  Replicate the conditions of when you had those beeps with one graphics card installed.
 
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Unfortunately, the person helping me with this decided to test the power supply in one of those hand-held power supply testers. He plugged the 24pin connector in and it worked fine, but when he plugged the two 4-pin 12V connectors in one of the 4pin connectors immediately melted. I'm not sure if it was a bad power supply or if he just shouldn't have used the tool because it may not have been intended for that large of a PSU, but either way I can no longer test it and have to RMA regardless. I'm going to RMA the mobo as well since I'm now forced to get a new PSU no matter what and the time of waiting two weeks to get a new PSU and test it and finding out the mobo might still be bad is much more valueable then the $10 its going to cost to just get a new mobo in the same time frame.

Really miserable about this outcome. I guess this is why you don't trust other people with your computer. :( Thanks for the help guys.
 
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As a parting thought I decided to return the power supply instead of just get a replacement so I could purchase one that has enough 12V connectors to fill both 8-pin slots. Does anyone have any recommendations for this motherboard? (If this is out of the scope of the thread/forums, I apologize.)
 
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Corsair TX650 or the Corsair TX 750.  You can use the adapter that comes in the box.  The 650 has 2 6+2 PCIe connectors, but you should have at least one 2 4pin Molex to 8 pin connector for each VGA.  The 750 has 4 6+2 pin PCIe connectors.
 
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Much thanks. Is a 750W supply enough for the components I'll be running? I'm definitely enticed by the price.

Also, I'm a complete novice as far as knowledge of power supply connectors - I just want to make sure I understood what you wrote. Use some of the 6+2 PCIe connectors and just use the 8 pin converters that came with my video cards and these will fit into the 8-pin 12V slots near the CPU and provide the necessary power?
 
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With a system having 2 465s in SLI, it is recommended you have a PSU that delivers 46A on the +12v rail.  The TX 750 can output 60A.  Make sure you get the TX version.  Just use the 6+2(which create an 8pin for PCIe cards) connectors--that's what they are for--the VGA cards.
 
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