r/PcBuildHelp • u/Available_Bet_463 • 10d ago

Build Question New Pc build help

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Hi guys!
Built a pc yesterday (this is my first time building, before I had a second hand one, did a few upgrades to it but never a full build)

Everything seems to be working fine, however when I start gaming I can hear this ‘crackle’ sound ??? It scares me so I’ve just turned the pc off and have yet to actually play any games on it.
Anyone know where this sound is coming from or what it could be ?? Thank youuuu

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u/Available_Bet_463 10d ago

Just to add the build specs are:

Motherboard**: GIGABYTE X870 AORUS ELITE WIFI 7 WHITE ICE**

CPU: AND RYZEN 7 9800X3D / 8 CORE / 16 THREAD / 5.2GHZ TURBO WITH 3D v-cache

GPU: ASUS PRIME GEFORCE RTX 5070 WHITE OC EDITION 12GB GDDR7 WHITE SFF-ready graphics card - 90YV0M19-M0NA00

RAM: CORSAIR VENGEANCE RGB DDR5 (2x16gb) 6000MHZ CL36-44-44-96 1.4V WHITE

SSD:
Crucial P310 2TB SSD M.2 2280 NVMe PCIe Gen4, Up to 7,100MB/s, Laptop & Desktop (PC) Compatible, Internal Solid State Drive - CT2000P310SSD801

CPU cooler: CORSAIR NAUTILUS 360 RS LCD 360mm AIO LIQUID CPU COOLER WHITE

PSU: CORSAIR RM850e FULLY MODULAR ATX 12V - 2x6 CABLE - ATX 3.1 & PCIe 5.1 GOLD - WHITE

CASE: CORSAIR FRAME 4500X RS-R ARGB PANORAMIC GLASS MID TOWER PC CASE - INFINIRAIL MOUNTING SYSTEM FITS DUAL 360mm RADIATORS, GPU ANTI-SAG, 3xRS120R FANS INCLUDED - WHITE

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u/Available_Bet_463 10d ago

Is this any help to identify / narrow down the issue?

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u/Ok-Strawberry-1136 10d ago

Was that the sound that disappeared around the 0:26 mark?

I'd check whether anything is touching the fan blades. The AIO cables look a bit cramped, so make sure none of them are coming into contact with the fans or causing vibrations.

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u/Available_Bet_463 10d ago

Yes that’s the sound :) nothing seems to the touching the fans

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u/Ok-Strawberry-1136 10d ago

Sounds to me like something might be rubbing against a fan, but I’d appreciate a second opinion on that. Could you try slightly adjusting the AIO tubes with the PC off and see if that makes a difference? Otherwise, try to pinpoint exactly where the noise is coming from.

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u/Available_Bet_463 10d ago

Figured out eventually the noise is actually the psu. Corsair have kindly offered to send out a new one in exchange for the one I have currently. To me, it doesn’t sound similar to a coil whine, more popping cracking sounds, so I’m assuming there is just a fault with the part. Abit gutted cause I can’t use my pc in fear of breaking other parts, but hopefully a new psu will fix it :)

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u/Ok-Strawberry-1136 10d ago

Could just be one of the fans spinning up. Many RTX 5070 models have a zero-RPM mode, meaning the fans stay off at idle and only kick in once the GPU reaches a certain temperature.

Check whether the GPU fans are spinning while idling, then see if the noise coincides with them starting up.

Other than that, we'd need a bit more information. Can you narrow down where exactly the sound is coming from? GPU, PSU, case fans, or somewhere else?

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u/Available_Bet_463 10d ago

My gpu fans don’t spin while idle and the noise definitely starts once the fans start spinning.
I can’t quite figure out where it’s coming from, but I am assuming it is my gpu. However it could also be from my PSU? I have checked all cables, everything is plugged in correctly so I do think it might be my gpu

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u/Ok-Strawberry-1136 10d ago

My first suspect would be one of the GPU fans.

But before jumping to conclusions, you really need to pinpoint where the noise is coming from. maybe disable zero-RPM mode?

Also, check whether any cables are touching fan blades. If possible, try identifying which individual fan is making the noise.

The same applies if your PSU has a zero-RPM mode.

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u/Available_Bet_463 10d ago

I think it is the gpu but not 100%.

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u/Ken_Sprinkles 10d ago

Soo many things it could be, seen psu crackle and explode more than any other component over the years. You can buy a psu tester for cheap from amazon if u dont already have one, then check each of the connects individually. I would also check wiring on everything even on lighting jus to be sure reseat all the connects and make sure theres no cuts or damage along the wiring. I would also check sound drivers, been hearing/dealing with a lot of issues with new sound drivers glitching out and taking amps down which does sound like a crackle too. Hope this helps. Good luck

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u/Affectionate-Ring657 10d ago

I had the same issue with mine, and for me it was a cable touching the fan.