is my motherboard toast?

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ramacher

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Mar 25, 2014
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Before I start I did read and follow the no POST guide along with the gigabyte sticky.

Motherboard is gigabyte ga-f2a85x-up4

2 weeks ago before leaving for spring break I updated windows, shutdown my PC and unplugged the power strip. Got back on Monday and it wouldn't power on, the orange power switch on the motherboard was lit up (I have no CD drives so can see it through the opening in the case).

I put it on its side, took the side panel off, and unplugged and replugged the power supply. Orange light on again but when I press the power button the fans try to spin as if it's just getting a bit of power, the 2 digit debug info screen on the motherboard would flash something in red, fans twitch and that's it. Unplugged and replugged again same thing happened, and then my power supply fried. Made a loud sparking sound with orange through the fan vents and I quickly unplugged it (hand was already there from just plugging it in).

Bought a new power supply today and same thing again, fans barely move, tries to show something on debug screen and nothing.

In following the no POST guide I tried with just one ram stick, unplugging everything except HDD, monitor and keyboard and no go.

I tried it without the 12v 2x4 atx power and all fans turn on, but since no power to CPU it does not boot.

How can I find out if it's my mobo or CPU that's fried?
 
Solution
Nathan Willis
If the MOB is under warranty send it to them.
If they do not ask to not mention your PSU. They will most likely try to blame it on that and void your warranty.
Also, when you get a PSU get one from a good brand. Cheap junk PSUs will cause tons of problems like this.
I recommend EVGA, Corsair, and Seasonic.
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Nathan Willis

Nathan Willis

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The the flash points me to a bad PSU. Most likely it killed your system.
When you plugged the PSU in caused a surge and killed something.
Try taking out the CMOS battery and wait 20 sec.
That will rest everything. If that does not work your MOB probably got killed. :(
 
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R

ramacher

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Mar 25, 2014
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Thanks for your reply.

I forgot to mention that I did reset the CMOS. The mother board has a CMOS reset switch along with CMOS reset jumpers, I tried both and removing the battery and same thing.

I'm currently trying to check the warranty status via gigabyte's website but it keeps timing out after I enter my serial number.
 
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Nathan Willis

Nathan Willis

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Mar 15, 2014
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If the MOB is under warranty send it to them.
If they do not ask to not mention your PSU. They will most likely try to blame it on that and void your warranty.
Also, when you get a PSU get one from a good brand. Cheap junk PSUs will cause tons of problems like this.
I recommend EVGA, Corsair, and Seasonic.
 
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Solution
R

ramacher

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Mar 25, 2014
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The PSU I got I've never heard of before, it's a Logisys PS550ABK http://www.newegg.com/Product/Product.aspx?Item=N82E16817170010. $20 on newegg and he wanted to charge me $80. Talked him down to $40 just because I needed it asap to get my PC working again.

What are the chances the PSU is bad and mobo is fine? I can stop by the computer store tomorrow and see if they'll let me swap it out.
 
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R

ramacher

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Mar 25, 2014
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Just tested the PSU and the voltages check out.

Now back to checking if the motherboard is still under warranty.
 
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R

ramacher

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Mar 25, 2014
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Update: I sent in the mobo for repair and got it back. Now when I got it back it would do a little more then previously (as mentioned in OP) but still wouldn't boot.

My brother has the exact same MoBo and CPU... unused, new in box. Since he recently built a new computer, he finally let me have them. I put my CPU on new motherboard and same thing. New CPU on old motherboard and it boots. SO it was my CPU that was bad. Using the new one now and will see what AMD's warranty is on the damaged one.

Thank you guys for all your input.
 
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