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Killed my Crosshair V Formula Z, Smoke and all!

post #1 of 25
Thread Starter 
So I tried my hand at overclocking and it didn't turn out well. I Have the FX8350 and followed the 4.8Ghz ROG OC guide, except that I set my ram up first:2400mhz, 1.65v, cas latency 10, 10-12-12-31. I didn't want to be stupid about it so I did some other reading and I didnt start at 4.8. I set a lower voltage and a x22 multiplier to start. Everything worked well. So I bumped up the viltage a bit more and set the multiplier at 23. Still ok but a little hot. So I mucked around with the fans in my case and got that temp down too. I also found some info saying that AI suite II reports socket temp not core and as such you can go to max 81 degrees. But to be safe I also checked temp in Coretemp and was well below the 62 degrees max for the CPU.

Now onto the good stuff... set multiplier to 24 and voltage to 1.5. Booted fine but as soon as I ran prime 95 the temp shot up and there was that hot electronic smell so I quickly stopped the workers and then the system froze so I turned it off.

Tried turning it on again and it wouldn't post. Tried a bit of troubleshooting and got nothing as a last resort I unplugged the 4 pin power plug and plugged in the 8 pin. Pop! A little puff of smoke right at the top of the board which I think is the vreg?

So... what did I do wrong?
and can it be fixed or am I up for a new mobo?

The only other bit of info I really have is that the q code shows as FF, the CPU led is on, and for some reason even with the switch off the PSU seems to want to pump in power. I could hear clicking, and a little white noise and popping from my speakers.
Edited by Fuzzy Bunny - 6/9/13 at 5:26am
post #2 of 25
and you probably broke something on your mainboard. gg asus!
 
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post #3 of 25

Tried to turn it on again? Does it still work? I have never went to try to overclock like that... trying to get 4.6 stable but just stayed at stock... Anyway hopefully your system is still good.
 

post #4 of 25
I know that Smell of burning Plastic and Electrics when I blew up my Power Supply. biggrin.gif
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post #5 of 25
i think you will need new motherboard. Contact ASUS from HERE
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post #6 of 25
Thread Starter 
Sorry, I'm in Australia so I get the feeling I might need to contact them through the AU site. I would love to know where I went wrong with this maybe my cooler just wasnt quite up to the job? But I wouldn't have thought that excess heat (at least not that much) would have killed the voltage regulator. Or was it to do with me upping the dram voltage too?

It sucks that it went this way, but I knew it was a risk, but if I cant figure out why it went down like this, I don't think I will ever try to OC again.
post #7 of 25
More than likely a VRM heatsink not making good contact. thumb.gif
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post #8 of 25
Thread Starter 
Wouldn't it be nice if that were true? That would mean that although it was my fault, it could have happened to anyone tongue.gif
post #9 of 25
Hmm I dont know why normally the pc should shutt pff automatically
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post #10 of 25
did you unplug the 4 pin & put in the 8pin why the psu was still plugged in at the wall?

have you tried a different psu at all?

it could be the psu still has power through the 24pin connector & not the 8pin?

which when you turn it on the psu will look like its powering up? but your motherboard will fail to post?

if your motherboard is cycling post codes id imagine there is nothing wrong with it?

its more than likely your psu 12v 8pin line that's broke?

if you don't have another psu? iou can try some 4pin molex to 8 pin atx adapters to test it out?
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