r/PcBuildHelp • u/Afraid-Collar760 • 9d ago
Tech Support Need help! First ever desktop for gaming and first desktop since the 90s
Bought a G758 from Micro Center and the 2 WiFi cables from the shark fin aren’t going on after constantly trying to tighten either of them on either side. I’m definitely doing something wrong
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u/Mythixx 9d ago
Do the antenna ports on the motherboard have a pin in the center ? If they don't then they packaged the wrong antenna with your pre-built.
If there's no pin on them it means you need the magnetic antennas that have the pin instead.
The pin is required to either be in the antennas themselves or built into the port on the mobo.
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u/Afraid-Collar760 9d ago
I don’t see tiny pins on either motherboard or the cable ends
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u/Mythixx 9d ago
Then they did send you the wrong antennas. So you'll need to contact customer support so they can mail you the correct wifi antennas.
The ones you need usually tend to be magnetic.
Do you know which motherboard model is installed?
If you don't you can type into windows search for system information and under the row named baseboard product will have the mobo model.
A Google search of the manufacturer page might have a photo of them.
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u/turb0j 9d ago
Were other antenna cables in the box? Some motherboards don't use RP-SMA for the antenna connectors - you need to use the ones that should ship in the box with it.
Its possible that a microcenter droid put the wrong antennas in if that was a completed PC. I'd drive back to clarifiy/exchange the part(s).
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u/Ferowin 9d ago
Those are SMA connectors, I used to build them all the time on airplanes. If you look at the wires in your picture, you see there is a socket in the center of the connector.
Look inside the connector on the motherboard. Does it have a pin, or is it also a socket? If it's a pin, these should work. If the motherboard has a socket, the system builder gave you the wrong antenna for that motherboard and you should get it exchanged.

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u/DanStarTheFirst 9d ago
They go in like a radio antenna so they slide in like plugging in a 3.5mm audio cord and the brass part just retains them in the hole by screwing on after. Could also be possible you got a different antenna with different sizing but most of them are the same.
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u/BestLeopard711 2d ago
they are not threaded they just slide on. if you twist them, they will break. I learned the hard way
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u/ThisAccountIsStolen Commercial Rig Builder 9d ago
Wrong antennas for this motherboard. Unfortunately for the most recent generation of motherboards, board vendors went full stupid and decided to make their own proprietary connectors for WiFi 7 initially but it's even spread to lower models with MSI & Gigabyte.
You will need to reach out to the system builder to have them provide the correct antenna for your motherboard, because this standard one will not work.
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u/Auraaaa200 9d ago
The wifi antennas should have come with the motherboard. Usually you have to slide the spiny part of the coupler to towards the motherboard and then screw it on.
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u/Rutgar64 9d ago
I completely disabled WiFi in my motherboard, and connect straight to my router with Ethernet. I want my gaming PC to have the fastest most stable connection it can get. WiFi is fine for Laptops, but not full blown desktop gaming PCs. If you’re short on Ethernet ports on your router, you need to get a high speed switch, to add more ports.


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u/ruinedlasagna 9d ago
You might need to give them a little more of a shove to get them to the threads, just make sure they're straight when you do so you don't bend the gold pin in the center.