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Hissing, buzzing noise coming from motherboard. Ma

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CocoaThumper View Drop Down
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    Posted: 24 Nov 2017 at 4:56am
So I have an ASRock X370 Killer SLI/ac motherboard. Its an AMD AM4 socket. I recently started noticing a strange buzzing or hissing sound coming from the case.

At first I thought it was my fans. So I tested my pc with the case fans off. The noise persisted. Then I tested by slowing down the CPU fan. The noise persisted. I then slowed turned off my GPU fans...but the noise was still there.

The hissing ramps up when gaming...so I thought it was the GPU. But then I thought to remove my GPU and start my PC. Sure enough the sound was still there.

The noise sounds highly similar to that of a working mechanical hard drive. Except my system uses an SSD. Anyone ever have a board do this?
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chainsaw View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote chainsaw Quote  Post ReplyReply Direct Link To This Post Posted: 25 Nov 2017 at 12:05am
Sounds like Coil whine, my K4 has it also.  Sometimes a better power supply can help. 
ASRock Fatal1ty X370 Gaming K4 P3.40
AMD RYZEN 7 1700 @ 4Ghz 1.39v
Noctua NH-D15 "blocks top 1x pci-e"
16GB GSkill Ripjaw V F4-3200C16D-16GVRB @ 2933 14-15-15-15 T1 1.365v
GTX 1080 x2 Sli
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Asingo View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Asingo Quote  Post ReplyReply Direct Link To This Post Posted: 25 Nov 2017 at 10:10pm
Is this somehow connected to those x370 Taichi and fatality pro buzzing problem?
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CocoaThumper View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CocoaThumper Quote  Post ReplyReply Direct Link To This Post Posted: 26 Nov 2017 at 12:31am
Originally posted by chainsaw chainsaw wrote:

Sounds like Coil whine, my K4 has it also.? Sometimes a better power supply can help.?

The noise is definitely not coming from my power supply and I have a very good PSU. It's the G2 Evga 750 W Power supply.

Very well reviewed unit. Can a mod chime in here? Because I'm thinking of doing an RMA. It's annoying that these sounds from the motherboard are loud then my case fans half the time.

I've never dealt with a system like that.
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MisterJ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MisterJ Quote  Post ReplyReply Direct Link To This Post Posted: 26 Nov 2017 at 12:35am
CocoaThumper, this is a user forum including the moderators.  I suggest you open a ticket with ASRock Technical Support.  Good luck and enjoy, John.
Fat1 X399 Pro Gaming, TR 1950X, RAID0 3xSamsung SSD 960 EVO, G.SKILL FlareX F4-3200C14Q-32GFX, Win 10 x64 Pro, Enermx Platimax 850, Enermx Liqtech TR4 CPU Cooler, Radeon RX580, BIOS 2.00, 2xHDDs WD
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Post Options Post Options   Thanks (0) Thanks(0)   Quote chainsaw Quote  Post ReplyReply Direct Link To This Post Posted: 26 Nov 2017 at 1:47am
their are other ways of fixing coil whine but they are not recommended for new hardware "will void warranty" you can try to RMA but from my exp its often rejected.

it seems our motherboards have the same VRM setup, for me the sound is from the Chokes right next to the CPU. i got a New Evga supernova that help for my setup. much more quiet with the evga vs my old corsair.  

Linus tech tips did a good video on youtube about coil whine.

ASRock Fatal1ty X370 Gaming K4 P3.40
AMD RYZEN 7 1700 @ 4Ghz 1.39v
Noctua NH-D15 "blocks top 1x pci-e"
16GB GSkill Ripjaw V F4-3200C16D-16GVRB @ 2933 14-15-15-15 T1 1.365v
GTX 1080 x2 Sli
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