Tried replacing motherboard, things started smoking

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DeadMan_DDProds

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Dec 20, 2013
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So I attempted to replace my motherboard and add a new processor. I had a Gigabyte GA-M68MT-S2 and an AMD FX-4100 processor and was replacing both of them with Gigabyte GA-970A-DS3P and an AMD FX-6350. I got the old motherboard out, put in the new motherboard, installed the CPU, got everything plugged in properly. When I tried to turn it on everything lit up for a second and then turned off. I tried it a couple of more times and smoke started pouring out of my tower. I unplugged everything, opened it up and tried to figure out what was smoking. It was either the power supply or the the CPU. When I went to remove the CPU, it had fused to the heatsink. I thought it was something wrong with the processor so I tried putting in my old one. Tried turning it on again and same thing happened minus the smoke. What the hell happened?

The rest of my PC specs are:

GPU: EVGA Geforce GTX 650 2GB SC
Memory: 1TB HDD
RAM: 8GB DDR3 1333MHz
PSU: Coolmax ZX700
 
Solution
SchizTech


Well Coolmax is a dinky brand for power supplies. It may have lasted a year but an unreliable PSU is a risk to go at any time. Stick with Seasonic, Antec, XFX or Corsair
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SchizTech

SchizTech

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Jan 16, 2011
5,278
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Sometimes a CPU sticks to the cooler if the thermal grease can't be separated. You should be able to gently rotate it to break the seal or just pry it off with a flat piece of metal.

As to the smoke - sniff each component to determine which the smoke came from if you can make it out.
 
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DeadMan_DDProds

Honorable
Dec 20, 2013
42
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10,530


I manage to get it unstuck, thanks. With the smoke me and a friend of mine who was helping me out both sniffed and it either came from the CPU as it fused to the heatsink or the PSU. Both smelled like smoke and we couldn't figure out which smelled worse.
 
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SchizTech

SchizTech

Judicious
Jan 16, 2011
5,278
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Well the PSU should be replaced. IF you can test with the old motherboard (with a good PSU) , try the new CPU. If that works the new mobo is toast.

Are you sure everything was plugged into the right place and there was no metal making contact where it shouldn't have been?
 
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SchizTech

SchizTech

Judicious
Jan 16, 2011
5,278
57
32,640


Well Coolmax is a dinky brand for power supplies. It may have lasted a year but an unreliable PSU is a risk to go at any time. Stick with Seasonic, Antec, XFX or Corsair
 
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