Silencing coil-whine: an alternative

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wwenze
Posts: 274
Joined: Mon May 23, 2005 12:04 am

Silencing coil-whine: an alternative

Post by wwenze » Wed Jun 01, 2005 4:22 am

Sry if i posted in the wrong forum.

I'm yet another guy suffering from bad quality coils on my mainboard. It seems to be heat-related coz it only happen when the coil gets hot.

Hot, huh? So i thought, why not add a heatsink?
So i got a ~40mmx40mm (removed from a spoil i740) heatsink and placed it so that it touches the coil at one end. I didn't use thermal compound for this, but judging from the temperature of the heatsink i can be positive that it is working. But, after a certain temperature is reached the whine resumes.

So i added a 2600rpm 80mm fan (couldn't find my 40mm fans). This combo worked out; previously i tried fan only and it failed.
BTW this com is no where near quiet, but the coil whine is really irritating.

Will try passive cooling with a P4 1.8Aghz stock heatsink.

Guys, try this out if your coil-whine problem is heat-related.

Update: Okay, P4 heatsink up and running (not really coz it is passive). Aided by the fan from the PSU this is gonna cool a lot considering it being bigger than the CPU heatsink. I think the sheer weight of the heatsink alone can suppress the coil whine already. :lol:
Put the 40mm heatsink on another coil suspected of slight coil whine.

2nd update: Thanks to low airflow in the case, the P4 heatsink still gets too hot after a while. Trying it with 5Ved fan (quite quiet actually) now.

Longbow
Posts: 134
Joined: Sun May 09, 2004 12:14 pm
Location: Middle Earth

Post by Longbow » Wed Jun 01, 2005 3:40 pm

i lowered the CPU voltage by 0.1v and the whine is almost gone.
[size=75]Pentium E2140 @ 2.8GHz, Scythe Ninja B + Thermalright bolt-thru kit, Gigabyte P965-S3 3.3, Corsair XMS2 6400 1GB*2, WD 3200AAKS, MSI NX8800GT OC
Pioneer 109BXL Quiet, Creative Audigy 2 ZS, Antec 3700BQE w/ AcoustiPack Deluxe v2, Antec Phantom 500[/size]

retrofitter
Posts: 6
Joined: Tue May 31, 2005 10:26 pm
Location: Sydney AU
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Post by retrofitter » Sat Jun 04, 2005 2:09 am

Seal it by painting it with laquer, shalack (sp) or even epoxy..

wwenze
Posts: 274
Joined: Mon May 23, 2005 12:04 am

Post by wwenze » Sat Jun 04, 2005 3:21 am

retrofitter wrote:Seal it by painting it with laquer, shalack (sp) or even epoxy..
If mainboard spoil how to RMA? :lol:

Actually I'm trying silicone now. At least can peel off. :lol:

Techno Pride
Posts: 347
Joined: Tue Jun 03, 2003 12:57 am

Post by Techno Pride » Sat Jun 04, 2005 3:44 am

how about heatshrink?
Antec Solo II
i7-2600S, GA-Z68XP-UD3, 16GB DDR3-1600, GTX 1060 6GB

Mar.
Posts: 561
Joined: Thu Jan 20, 2005 8:58 pm

Post by Mar. » Tue Jun 07, 2005 11:01 pm

I believe it's spelled "shellac"...
~mar.

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