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Coil whine, need help.

post #1 of 8
Thread Starter 
Hey all,

Since I've build my new PC there has been a very loud whine coming from the lower area of my PC.
But I'm not sure If my motherboard, GPU or PSU is causing it. Is it possible to pinpoint it?

- I've tried enabling v-sinc on games and disabling ERP,C1E and EIST in my bios which almost fixes it.
- My second monitor starts getting static lines when the whine is there, it happens when I'm playing games or have some clients on my desktop. ( league of legends client for example)
- Tried replacing my video card with another one ( amd radeon hd 6950 ) and it still made the same exact noise.
- Don't know anyone that I could barrow a PSU from or otherwise I would've tried it with another one.
- Most of the noise happens when I'm in the main menu or have some clients open

Corsair said that I could RMA my power supply, but I'm still unsure if it's my power supply. ( Don't want to send them a perfectly fine power supply )

Could you guys help me out?

Thanks. ( sorry for my English )
post #2 of 8
Sounds to me like there's faulty insulation on one of coils in the PSU. However I could be wrong as I am just guessing. Because it seems to me like it whines with increased need of effect.
post #3 of 8
Thread Starter 
Quote:
Originally Posted by iPatch View Post

Sounds to me like there's faulty insulation on one of coils in the PSU. However I could be wrong as I am just guessing. Because it seems to me like it whines with increased need of effect.

Thanks for your reply, that's what I thought as well, It only does it when my PC needs more power ( for example when I'm gaming or have a client open ) and when I turn V-sinc on it stops for the most part ( since the video card requires less power because it doesn't get above 60 fps ) So I might as well just RMA it and see if it's gone.
post #4 of 8
You didn't mention where your PSU is located in the case. Is it one of those cases where the PSU is at the bottom? Most motherboards are made so the potentially noisy stuff is near the top, around the CPU socket (coils for CPU voltage regulator).

Operate the computer with the PSU removed from the case. You can usually do that if you set the case sideways or prop the PSU on top of a box. Be sure it's secure so nothing can fall or wiggle (movement damages hard disks, and carpeting is really bad for letting cases move).

One way to pinpoint noise is by listening through a carboard tube or hose.

I really doubt a coil has bad insulation. OTOH it may not have varnish or epoxy. With a switching power supply, the on/off ratio of the oscillator changes with load, and when just the right ratio is met, a coil can whine or whistle.
post #5 of 8
Thread Starter 
Quote:
Originally Posted by larymoencurly View Post

You didn't mention where your PSU is located in the case. Is it one of those cases where the PSU is at the bottom? Most motherboards are made so the potentially noisy stuff is near the top, around the CPU socket (coils for CPU voltage regulator).

Operate the computer with the PSU removed from the case. You can usually do that if you set the case sideways or prop the PSU on top of a box. Be sure it's secure so nothing can fall or wiggle (movement damages hard disks, and carpeting is really bad for letting cases move).

One way to pinpoint noise is by listening through a carboard tube or hose.

I really doubt a coil has bad insulation. OTOH it may not have varnish or epoxy. With a switching power supply, the on/off ratio of the oscillator changes with load, and when just the right ratio is met, a coil can whine or whistle.

Thanks for your reply.

It's on the bottom of the case and I just listened to it. And I'm pretty sure it's the PSU, but is it possible for other components to cause the PSU to whine? Or should I just RMA the PSU and see what happens?
post #6 of 8
Quote:
Originally Posted by Darkaroth View Post

Thanks for your reply.

It's on the bottom of the case and I just listened to it. And I'm pretty sure it's the PSU, but is it possible for other components to cause the PSU to whine? Or should I just RMA the PSU and see what happens?

RMA it.

Corsair is really good about customer support. thumb.gif
 
ThinkPad Yoga
(10 items)
 
 
CPUMotherboardGraphicsRAM
Phenom II X4 970 @ 4 Ghz Asus M4A88TD-V EVO IceQ-X 7850 2GB @ 1150/1400/1.15v G.Skill Snipers 8GB DDR3 1333 (2x4GB) 
Hard DriveHard DriveHard DriveHard Drive
Seagate Pipeline HD.2 500GB  WD Green 500GB Seagate NAS 2TB Seagate NAS 2TB 
Optical DriveCoolingOSMonitor
Asus DVD Burner CoolerMaster GeminII S524 Win 7 Pro x64 Samsung 24" S24D590 (1080p) 
KeyboardPowerCaseMouse
Logitech G510 TX750 V2 Corsair 600T Silver Logitech Trackball 
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CPUMotherboardGraphicsRAM
Baytrail Quad Core @ 2.16 Ghz OEM Lenovo 20DAS02X00 Intel HD Graphics 8GB DDR3L 1600 
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ThinkPad Yoga
(10 items)
 
 
CPUMotherboardGraphicsRAM
Phenom II X4 970 @ 4 Ghz Asus M4A88TD-V EVO IceQ-X 7850 2GB @ 1150/1400/1.15v G.Skill Snipers 8GB DDR3 1333 (2x4GB) 
Hard DriveHard DriveHard DriveHard Drive
Seagate Pipeline HD.2 500GB  WD Green 500GB Seagate NAS 2TB Seagate NAS 2TB 
Optical DriveCoolingOSMonitor
Asus DVD Burner CoolerMaster GeminII S524 Win 7 Pro x64 Samsung 24" S24D590 (1080p) 
KeyboardPowerCaseMouse
Logitech G510 TX750 V2 Corsair 600T Silver Logitech Trackball 
Mouse PadAudioOtherOther
Dead mouse carcass Logitech Z313 Linksys WRT54G w/ DD-WRT @ 225Mhz Samsung Galaxy S3 16GB - Rooted/Carbon Rom 
CPUMotherboardGraphicsRAM
Baytrail Quad Core @ 2.16 Ghz OEM Lenovo 20DAS02X00 Intel HD Graphics 8GB DDR3L 1600 
Hard DriveOptical DriveOSMonitor
240GB Kingston SSD N/A Windows 8.1 Pro 11.6" IPS Touch Display @ 1366 x 768 
KeyboardAudio
ThinkPad baby... HD Audio 
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post #7 of 8
Thread Starter 
Quote:
Originally Posted by mrawesome421 View Post

RMA it.

Corsair is really good about customer support. thumb.gif

Thanks for your reply ! I will RMA it tomorrow thumb.gif
post #8 of 8
Quote:
Originally Posted by Darkaroth View Post

It's on the bottom of the case and I just listened to it. And I'm pretty sure it's the PSU, but is it possible for other components to cause the PSU to whine? Or should I just RMA the PSU and see what happens?
The sound is almost always from a coil, including a transformer, because nothing else is dense or heavy enough to cause a sound like that. Coil whine is a hit or miss thing, and unless you're willing to void the warranty, have Corsair handle it. As mrawesome421 said, Corsair has really good customer service.
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