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Broke my motherboard, what went wrong here?

post #1 of 10
Thread Starter 
About two months ago I first learned about overclocking on here. A few weeks later i OC'ed my Phenom II 955 to 3.7GHz, the first one that never gave any stability problems. However i had to use my memory in ganged mode, and after a month I felt like trying to improve on this.

I spent more time on adjusting the CPU-NB and DRAM voltages this time and managed to not get the stability problems my memory gave me last time. However the temperature was always getting too hot now, I had OCCT stopping at 64C all the time.
So after lowering the voltages a bit again I ran OCCT for the last time, I didn't see what happened but when I came back to check on it my pc didn't have any fans spinning and the power led was flashing. It couldn't be shut down by holding the power button, I had to turn off the power supply.

I can't remember or check the exact voltages, but it must have been close to this:
  • CPU VDD: 1.44v
  • CPU: 1.45v
  • CPU-NB VDD: 1.32v
  • CPU-NB: 1.38v
The motherboard is a MSI 770-C45 and the CPU a Phenom II x4 955.
The last thing I did was lower the CPU-NB and CPU-NB VDD, which were both around 1.42v before.

I've been checking my motherboard now and noticed one of the FETs blew. I'll be happy if that's the only thing that broke, but I'm really wondering how that happened. I must have done something wrong, but I really have no clue what.

Here's a picture of the motherboard, I already removed the blown FET on the left side.
post #2 of 10
could of been a bad OC'ing board, had a few gigabyte ones, the mosfets alwasy blew in the same place.
     
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post #3 of 10
There has been almost weekly incidents of MSI boards failing like this or catching on fire lately.

Is there any way you can return the board to the store you bought it at? If so I would and pick up an asus or gigabyte board.
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post #4 of 10
Yup, its a bad OCing board, and a pretty high powered chip compared to the dual cores.
asus or gigabyte +1
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post #5 of 10
Quote:
Originally Posted by Sircles View Post
could of been a bad OC'ing board, had a few gigabyte ones, the mosfets alwasy blew in the same place.
Bull poo. Gigabyte make the most solid boards I've ever used.
Quote:
Originally Posted by mtbiker033 View Post
There has been almost weekly incidents of MSI boards failing like this or catching on fire lately.

Is there any way you can return the board to the store you bought it at? If so I would and pick up an asus or gigabyte board.
MSI's older boards just aren't up to OCing quads, they weren't made for it. The newer ones are fine, since they have actual support. This is one of AMD's fails, making new chips on the same socket.
Quote:
Originally Posted by antipesto93 View Post
Yup, its a bad OCing board, and a pretty high powered chip compared to the dual cores.
asus or gigabyte +1
Listen to this man.
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post #6 of 10
Quote:
Originally Posted by Reflux View Post
Bull poo. Gigabyte make the most solid boards I've ever used.
i build a lot of systems, i mean we had 3 boards fail in the same system in exactly the same way and we used all new components on the last mobo, maybe was just a bad batch... but i was just sayin. and we had problems with gigabyte boards having a cold boot problem so no longer use them and go with ASUS as theyre far more reliable.
     
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post #7 of 10
Um, Gigabyte make some of the best clocking boards out there, they also leave clocking features in boards which don't have the guts to do it, which leads to explody mosfet time...

I'm assuming your board has 8+2 phase power and cooling on the mosfets? Because I for one wouldn't do any real clocking on a board that didn't.
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post #8 of 10
dont get me wrong. gigabyte make some damn good boards eg EX58A-UD7. im not saying theyre rubbish or anything, i just happen to have been unlucky with them
     
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post #9 of 10
Thread Starter 
Thanks for the help, I bought this board before knowing anything about overclocking and went with cheap cause I didn't need crossfire or onboard graphics.
I'm glad I didn't do much wrong myself, looking forward to see what I can do with an actual good motherboard now.
post #10 of 10
You should really check out xd_1771's VRM post. There is a link in his signature. It'll answer all your problems. These MSI boards just weren't made for it. I've got the 770-c45 and am looking for an ocing board now.
These are xd_1771's posts. Very helpful.

http://bit.ly/fZFv3k

http://bit.ly/eNJ9ra
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