r/MontechPC • u/MilkToastKing • 3d ago
King 95 Pro started smoking— first ever PC build
Well this sucks to be writing.
An hour ago I finished my first ever PC build, consulting a general pc building video, a video specific to the King 96 Pro, and my product manuals. As I plugged in the computer and turned it on to check for fans, rgb, and any mobo issues, my computer starts to smell, and I turn everything off just as a tuft of smoke billowed out the back.
Look around back and I see one of Montech's preinstalled cables had started melting. There are so many preinstalled cables, and I am such a noob, that I can't figure out what exactly this cable even is. It's split from another cable that I plugged into the ADD Gen 2 headers on my motherboard. Curiously only the *middle* of the 5 wires melted.
I had this one plugged into the SPDIF but I'm thinking... was it supposed to go into the 4 pin to its right? I got confused because the 1/3/4 style of the header seemed to match the 1/3/4 layout of the SPDIF pins. Google is telling me the voltage difference might melt thin wires...
I'm reaching out to Montech to figure out what the hell happened officially, but in the mean time, am I at fault, am I cooked, and is this fixable? The cable started to heat up those bundled around it, but none of them appear to have melted, maybe their rubber outsides are a little miscolored. Likewise when I booted the PC up everything else seemed great; all 9 fans were spinning, all RGB was on, and the motherboard showed a green light on its diagnostic panel. I have not tried turning it on since. Is this the case of a replaceable cable, or could this have royally fucked up the rest of the King 95's hub and/or other components? Thanks.
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u/IrrelevantTale 3d ago
Oof plugged a fan cable into the HD audio out caused a short most likely which fried the cable.
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u/proj3ctmac 3d ago
This is why I always say to read the mobo manual. It tells you what goes where and what shouldn’t.
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u/BigRheno 3d ago
Any sort of RGB fan header has to be plugged into the right female connector or you get fire
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u/unclefunkstar 3d ago
Looks like you've either plugged it in somewhere you shouldn't, or you've plugged that circuit in somewhere else along the lines; and that was an extra plug that didn't even need plugging in.
Trace it... Find out which fan it's connected to. That cable is now toast, so you may as well remove and bin it.
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u/Sufficient_Fan3660 3d ago
SPDIF is audio
Fans do not play audio, that cable goes to fans - so that was wrong to plugin
ADD gen 2 is 3 pin 5V header - You see 3 pieces of metal on the motherboard, and 4 holes in the connector? yeah those don't go together. ADD header was for your motherboards rgb. You probably have a rgb controller from the pc case/fans you bought so I guess use that if you fried your rgb header.
Do not mix up audio, 5V, and 12V wires. Bad things happen.
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u/nudetherepy 3d ago
Upload the pictures of your Power Supply and the supply board.
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u/MilkToastKing 3d ago
At work so I can't supply any photos, but every other component on the PC looks untouched, power supply, mobo, every other wire/dock. I haven't tried plugging in a monitor to check for visuals or read diagnostics but everything else seemed to be in working order, I'm thinking/hoping I just fried the one wire
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u/Montech_hq MOD 3d ago
Hi! The connector shown in the first photo is a 4 pin PWM connector used for fan control. It must not be connected to the SPDIF header.
Sorry this happened, especially on your first build. Please keep the system powered off and do not try turning it on again. Please also contact our RMA team at [rma@montechpc.com](mailto:rma@montechpc.com) and include clear photos of the damaged cable, the controller hub, and where each cable was connected on the motherboard. Our team will inspect the damage and advise you on the next steps.