Boot test fine, smoke and burnt smell on 2nd boot!

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TimbuckTwo

Commendable
Apr 7, 2016
4
0
1,510
I saw several similar posts but none about my exact situation so sorry if this seems redundant. Upon building my PC yesterday, I did the recommended boot test with CPU, CPU fan, memory and gpu only; bios popped right up. (This was with mobo already installed in case). I then finished installing other components: hard drive, cd-rom, case headers and case fan headers. Upon second boot with everything plugged in, a puff of smoke came out from around the ram area and now I get nothing: no beeps, CPU fan not running, etc. I know mobos in General have a fairly high failure rate so I'm thinking it was just faulty. Any thoughts? Thanks!
 
Solution
mjslakeridge
Your PSU is likely fine, as the only Seasonic's listed are Tier 1 or 2 on the attached list:

http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

You may want to look at your exact model # to confirm.

Hopefully you can return the motherboard for a refund. On your next build, try assembling everything outside of the case (some like to do it on top of the box the motherboard came in). That way you can see if everything is working properly before finishing the build.
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TimbuckTwo

Commendable
Apr 7, 2016
4
0
1,510
Unfortunately I have no way to test the components..my psu is a seasonic 520w unit I forget the exact model, but it should be plenty of wattage. I thought the smoke came from the memory slots area but there's no visible damage that I can see so I can't be sure. My build is as follows:
Intel Xeon E3 1231v3 1150
Asrock h97m-pro4
Crucial Ballistix 2x8gb ddr3 1600
Radeon sapphire 6450 gpu
Seasonic 520 psu
SIIG FireWire 400 PCI
2x WD Blue 1TB hdds
Asus cd-rom

I think I may try the asus h97m-plus equivalent it seems to have better reviews...thanks for your input!
 
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mjslakeridge

mjslakeridge

Splendid
Mar 6, 2013
3,386
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Your PSU is likely fine, as the only Seasonic's listed are Tier 1 or 2 on the attached list:

http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

You may want to look at your exact model # to confirm.

Hopefully you can return the motherboard for a refund. On your next build, try assembling everything outside of the case (some like to do it on top of the box the motherboard came in). That way you can see if everything is working properly before finishing the build.
 
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Solution
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TimbuckTwo

Commendable
Apr 7, 2016
4
0
1,510
*update*
I finally had a chance to take a look at my board and there's obvious damage on the underside right by the 24-pin connector..I also looked up my psu and it's the seasonic s12ii which is listed in tier two of the link you gave me. I just ordered a new board but just to be clear I can consider a faulty mobo to be the issue and not another component causing it? I just don't want to fry my new board. Thanks again!
 
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mjslakeridge

mjslakeridge

Splendid
Mar 6, 2013
3,386
4
21,965
There is no real way to determine if it was another component that caused the problem if you don't have another working system to swap components in and out of. But based on the fact you found damage on the underside near the 24 pin connector, it is likely the motherboard.

Do your next build outside of the case like I suggested above. First just install cpu and power up. Then add ram and power up. Then storage devices, next GPU. Once you have everything connected and the system running, you can install everything in the case.

Make sure you have the standoffs properly installed in the case before installing the motherboard. Your motherboard manual should tell you how many are needed and where they should be installed. Failure to install the standoffs could result in a short if the underside of the motherboard comes into contact with the metal case. Did you have the standoffs installed on the current build?
 
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T

TimbuckTwo

Commendable
Apr 7, 2016
4
0
1,510
New asus board arrived this morning. I followed your advice and built it piece by piece and everything worked fine. Now everything is installed in case and it's powering up! Thanks for your help I'm a happy camper!
 
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