Oops I did it again? Am I frying my CPUs by mistake?

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robby12312

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Sep 20, 2017
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A few months ago I RMA'd a Gigabyte GA-AB350-Gaming 3 because while using it normally the fans suddenly spun loudly for a few seconds, the screen went black, and the computer turned off. When I turned the computer back on the CPU fan and case fans would not turn on, but the RAM lights would, the computer wouldn't POST, and the CPU error LED on the motherboard was lit up. The RMA found nothing wrong with the motherboard, I got a replacement CPU from AMD and the computer worked fine for months after installing it.

Today I installed a new hard drive by connecting the to the next handy port on a power cable from the PSU and plugging into the next numbered SATA port on the motherboard. When I turned the computer on the exact same thing happened and now I'm sitting around typing on my crappy old laptop with a dead $1200 computer and yanked components all around me :)

What's wrong with my computer? Why did installing a new hard drive make this happen? What needs to be done to get the computer running again? How can I prevent this from happening in the future? Was the chip fried the first time I went through this? Is it fried now? Will AMD give me another replacement?

 
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Perhaps the SATA power connector cable is shorted...if two systems have become zapped hooking up an additional SATA drive, I'd replace that power cable (if possible), and be very cautious even using that SATA port on the mainboard again...

Replace the cables just in case, they are cheap...! (Even just one pin slightly misaligned on a SATA connector can wreak havoc if the pin shorts to another neighboring pin....)
 
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I tried running the PC w/ all the SATA drives disconnected, with only a M.2 drive and it still won't work.
 
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Hello!
Have you tried running it with one RAM stick and then swapping it with the second or third or how ever many sticks of RAM you have? If that did not work your CPU may be fried as I doubt it is a bent pin it could also be a bad PSU
 
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yup tried that. i'm thinking cpu fried too since when this exact same thing happened replacing the CPU made the system work. will AMD do it again? will seasonic cover it if it's their PSU messing my CPU up? why did adding a new hard drive make this happen?
 
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I think I remember there being an issue where gigabyte boards were overvolting cpus. If memory serves, it was related to the x370 boards, but you wonder. All depending you may consider replacing it with a different brand altogether.

If you buy more parts and are fortunate enough to have a Microcenter near you, I would consider buying parts there. They usually sell a 2 year replacement warranty that you can add on to your purchase. I've used that a few times at my local store and they are usually really good to deal with. I've nearly rebuilt entire systems using those warranties.

Edit. Re reading the thread, I agree it sounds like your PSU might be the culprit. Almost like you've got one that has a wire crossed or a short in that connector. Shame because seasonic has a good rep. If you get returns on the other things, I would definitely replace that power supply.
 
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but is there any way for me to know which component is causing this to happen?
 
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Seems like to me if it happens when you plug in a hard drive that possibly your power supply has a short in one of those connectors. So I think Sally, that I'd consider replacing the power supply.

Also, as someone else mentioned, change all your SATA cables for new ones as well to be safe in case there is a short in one of those.
 
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