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VREG fan mod

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Neggers
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Re:VREG fan mod 2010/03/16 07:10:21 (permalink)
mmm, risky, maybe. altho the vreg can handle alot of heat. I wouldnt recommend doing any stress testing if your vreg is 100C at idle.

Atleast setup some temporary fan to lower those temps abit.



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#31
firerx
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Re:VREG fan mod 2010/03/16 08:25:43 (permalink)
yep , I nice 40mm fan blow down on the vreg's works wonders. Went from an average 60- 89c, down to a 44-51c on load.

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#32
elsh1403
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Re:VREG fan mod 2010/03/18 14:09:47 (permalink)
Replaced thermal pad by a paste under VREG hs (also added some paste under NB heatsink) and now cannot boot up. Fans work for a few seconds and turn off and then again on and off. Can anyone please help what such start means?

Thank you. Mb 758, built a week ago, so far started ok albeit too hot.
#33
mipko
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Re:VREG fan mod 2010/03/19 04:22:25 (permalink)
If you applied conductive thermal paste than you made a mess :(
What thermal paste have you applied ?

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#34
elsh1403
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Re:VREG fan mod 2010/03/19 09:59:53 (permalink)
No it's not conductive. In terms of electricity. If I press RESET all fans keep on working, leds next to memory are on (yellow, green an blue). POWER button is red. RESET button's light is off. POST CODE is F6. Can't enter bios, nothing comes to monitor. If I press POWER, then as I mentioned earlier fans and lights turn on, offf, on, off...
#35
Liderc
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Re:VREG fan mod 2010/03/19 12:48:55 (permalink)
I would not try to run full load with your vreg idling at 90-100c, that could kill your board easily.  Definitely reseat the vreg heatsink before you run it full load.  You should be seeing 60-65C idle, maybe even a bit lower.

 


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#36
elsh1403
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Re:VREG fan mod 2010/03/19 13:53:34 (permalink)
Sorry, problem was with memory sitting. Applied more force and now ok. So now I'm at stock speed (i7 920) at idle with VREG and NB around 60C. Previously (before change of VREG's thermal pad for a paste + adding a small fan onto heatsink) I was at 4.3GHz at idle with VREG >90C and under load with >100C. At that time I even didn't check stock clock temps and went overclocking right after build.
So I think I did all I could but won nothing.

The last question: when you hold the upper edges of VREG heatsink by two fingers and slightly move it from side to side (from west to east) should it follow your moves or shoud it stand as a stone? (sorry for my non-english wording). I ask this because my one moved both when out of box and after my manipulations. So any touch to heatsink (for example when connecting 8-pin cable) can lead to some loss of contact underneath the heatsink...       
#37
mipko
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Re:VREG fan mod 2010/03/19 15:34:52 (permalink)
@elsh: glad that you solved the problem :) VRM sink at my E760 is not moving at all. However, I have tightened the screws. 
At 3.6GHz QPI 1.100 CPU Vtt = 1.175, DRAM Voltage 1.52 (Mushkin Redline 1600 6 7 6 1) VRAM idles at 47C NB 53C
At load VRM 54C NB 57C.


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#38
Halo_003
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Re:VREG fan mod 2010/03/19 15:51:14 (permalink)
Why is your guys's VREG so hot? At 3.8Ghz I never hit over 60*C.. At 4.06 I never hit over 65*C. It may be because of the Ultra Kaze that is right behind it but I dunno..

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#39
mipko
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Re:VREG fan mod 2010/03/19 16:07:40 (permalink)
I have OBSIDIAN 800D and it is much better tu switch rear fan to intake not exhaust. In that case it blows over VRM HS and makes it MUCH cooler. To compensate this I have added two Noctuas NFS @ L.N.A on top as exhaust. I also placed Lian Li 5.25" Fan intake module at 5.25" bay (fits perfectly) and I'm quite satisfied with temps. As I sad @3.6 I never topped 60C not VRM nor NB.

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#40
Nereus
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Re:VREG fan mod 2010/03/19 16:08:52 (permalink)
I'm still idling around 60-65 now, even with two 40x10mm Scythe mini kaze fans strapped to the vreg cooler fins. If I have time this weekend, I might replace the padding under the vreg - I have spare thermal padding as well as paste, so I'll see how it goes. I've just purchased an Antec spot cooler fan which blows a lot more air than the mini kaze fans, so hopefully I'll be able to bring the temps down a little. Also worth a mention is that when I flashed to BIOS 44 (and more recently 49) my vreg temp increased a few (3-4) degrees on idle.


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#41
Governator
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Re:VREG fan mod 2010/03/19 17:10:42 (permalink)
In a word, velcro





I merely velco'd a spare 38mm High speed Panasonic Panaflo fan up underneath the case overhang and powered it thru my fan bus along with the two that are on my H50's rad, pretty simple actually.
post edited by Governator - 2010/03/19 17:12:50

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#42
elsh1403
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Re:VREG fan mod 2010/03/30 02:10:04 (permalink)
Had anyone ever air-cooled the areas of VREG, CPU, NB from the reverse side of the motherboard?  
#43
chuntergb
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Re:VREG fan mod 2010/03/30 07:53:25 (permalink)
is there an aftermarket heatsink that will replace the standard one on an LE version ( same as micro i believe) ?
you guys all have the flashy classified version that has an evga silver heatsink on,maybe i could get that on its own from somewhere.

#44
ugotd8
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Re:VREG fan mod 2010/04/02 13:26:21 (permalink)
My contribution to the VREG fan mod thread: hack a PCI filler bracket. :-)

I wanted a quiet low-speed (1500RPM) 80mm fan over my VREG.  I used a small rubber washer between the fan and the bracket.  VREG temp never break 53c on load at 4.2Ghz.


Mounted to 140mm exhaust fan on my HAF932 --->




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Finally got some use out of spare parts laying around. :-)


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#45
elsh1403
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Re:VREG fan mod 2010/04/03 02:51:18 (permalink)
My way took more labor but it was worth doing that: I made a big hole in E758 motherboard tray and placed there a 12cm Scythe fan as exhaust opposite to bottom of VREG and NB. It brought down their temps to 55C and let me stay at 4.3Ghz constantly, without any water, with low noise.
  
#46
psionic98
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Re:VREG fan mod 2010/04/03 10:32:54 (permalink)
uh yes.. if you're at 100C idle youre running a ton of volts somewhere.. post up your volts etc

thats a ton.. if you run the rig at 100% you're likely to BSOD on temps easily

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#47
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