[SOLVED] Prime z390-A caught fire

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Baldhino

Baldhino

Apr 28, 2020
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I was upgrading my pc to an i7-9700k and when i went to turn on my PC for the first time i noticed a large amount of smoke coming from my pc i looked and there was a small flame next to the 24-pin power connector. I have no idea what to do now or whats wrong, having a hard time figuring out what to do thanks to lack of support thanks to covid. Would appreciate some suggestions because id rather not be in the hole 700$ with all the new parts i got.
 
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No way of knowing if anything else was affected until using a known good mainboard...

You might have done nothing wrong, as sometimes stuff just ....burns...

As you will be removing the mainboard at some point, you can check/confirm there were absolutely no extra standoffs underneath it...

When it comes time to test the rig once a replacement is acquired, if ever there were a time to initially test for a POST with only one RAM stick installed with no GPU or drives, this would be it...:)
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USAFRet said:
Obviously, fire/flames/smoke is not good.

From your description, the 24 pin connector was not fully seated. Of course, that is just a prelim guess.
Take it ALL apart and see what melted/burned.
Click to expand...
It wasn't the actual connector i can't seem to post a picture of it but its directly inbetween PU2102 and PQ4526
 
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This was the very first time you put power to the motherboard? To get combustion, you must have had a lot of heat (your motherboard is not exactly flammable). I expect it was due to a short. The question is, what there a short becuase you a had a screw laying the on the motherboard or something behind the motherboard or was it a manufacturing defect. As USAFRet mentioned, it could also have been a power connector with minimal contact (causes an arc). If that is the case, you will find charing and melt inside the 24 pin connector and socket.

With some luck, the motherboard is the only thing damaged and if it was a manufacturing defect, you should be able to get it RMAed. There is potentially damage to the PSU as well.
 
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anotherdrew said:
This was the very first time you put power to the motherboard? To get combustion, you must have had a lot of heat (your motherboard is not exactly flammable). I expect it was due to a short. The question is, what there a short becuase you a had a screw laying the on the motherboard or something behind the motherboard or was it a manufacturing defect. As USAFRet mentioned, it could also have been a power connector with minimal contact (causes an arc). If that is the case, you will find charing and melt inside the 24 pin connector and socket.

With some luck, the motherboard is the only thing damaged and if it was a manufacturing defect, you should be able to get it RMAed. There is potentially damage to the PSU as well.
Click to expand...
The charing isn't inside the connector i thought the smoke was originally coming directly from the connector but it wasn't. I wish i could post a picture of it.......
 
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USAFRet said:
Upload your images to imgur.com, and post the BBCode link here.
Click to expand...
bFZTQnq.jpg
 
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I see an open screw hole in motherboard. Probably have a standoff or two in the wrong spot and it caused a short. Remove all components and toss motherboard in the trash. Go buy a new one. Make sure all standoffs are in the correct position before installing the new motherboard. Hopefully all that was damaged was the motherboard.
 
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drivinfast247 said:
I see an open screw hole in motherboard. Probably have a standoff or two in the wrong spot and it caused a short. Remove all components and toss motherboard in the trash. Go buy a new one and make sure all standoffs are in the correct position. Hopefully all that was damaged was the motherboard.
Click to expand...
It was an upgrade I could find 9 standoffs only was able to find 7 however the board wasn't touching the case in any pace and it was well secured. That shouldn't caused a short
 
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Baldhino said:
It was an upgrade I could find 9 standoffs only was able to find 7 however the board wasn't touching the case in any pace and it was well secured. That shouldn't caused a short
Click to expand...
It would be nice to get a clearly view of it, but from other pictures it looks like a transistor that blew up. You said this was an upgrade, but what I am still not clear on is if this was the first time you put power to this motherboard. If it was, I would try to RMA it.
 
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anotherdrew said:
It would be nice to get a clearly view of it, but from other pictures it looks like a transistor that blew up. You said this was an upgrade, but what I am still not clear on is if this was the first time you put power to this motherboard. If it was, I would try to RMA it.
Click to expand...
Yeah im just concerned about if any of my other components were affected because i have no way of knowing now.
 
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No way of knowing if anything else was affected until using a known good mainboard...

You might have done nothing wrong, as sometimes stuff just ....burns...

As you will be removing the mainboard at some point, you can check/confirm there were absolutely no extra standoffs underneath it...

When it comes time to test the rig once a replacement is acquired, if ever there were a time to initially test for a POST with only one RAM stick installed with no GPU or drives, this would be it...:)
 
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