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VRMs hot to the touch at idle?

post #1 of 7
Thread Starter 
Hey guys,

I have recently installed the H100 because the 212+ couldn't keep my 3570k cool enough, and before I bought it I had heard a problem with the H100 is that it can't keep the VRMs cool like an air cooler can. I touched the heatsink to the left of the CPU, and it was slightly hot to the touch (pretty hot, but not hot enough to burn) is this normal? I wouldn't expect them to be hot at idle, but I don't know anything about that.

My case is setup like this:

One stock exhaust at top (rad is directly below)
__________
| |
E | |
| |
| |
| |
| | Stock Haf x intake
|__________|

E= Exhaust

And the big intake fan on the side.

Should the exhaust on the back of the case be an intake? So it blows across the VRMs?

Or am I just making a big deal out of nothing? tongue.gif


Edit: Looks like my diagram doesn't work tongue.gif. If you need me to explain it better I will try.
Edit 2: This probably should have gone in the cooling section...
Edited by evilhugbear - 8/27/12 at 4:26pm
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post #2 of 7
If the mosfets have heatsinks on them, then it shouldn't be hot to touch. I can't be certain that if something is definitely wrong, but what I know is that it's not suppose to be like that, unless you've OC'ed your CPU till a really high extent and it's under load.

If mosfets run really hot all the time, then do have a chance of blowing up. Just to let you know that most mosfets do run hot the way they're designed, but most new motherboards have heatsinks on them to stabilize their heat. However, just like I said, the heatsink should be that hot.
post #3 of 7
depends what the guy qualifies as hot, they should be warm, but not too hot to touch, if they are too hot to touch then you will need some more airflow on them.
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post #4 of 7
Thread Starter 
Quote:
Originally Posted by Sin0822 View Post

depends what the guy qualifies as hot, they should be warm, but not too hot to touch, if they are too hot to touch then you will need some more airflow on them.

Ya, that's what I meant. The heatsink is kind of warm. I just didn't know if it is normal for it to be warm at idle.
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Windows 7 x64 Ultimate ViewSonic VA2226W 22" Corsair HX750W Coolermaster HAF X 
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post #5 of 7
It's normal. Don't worry about it, as long as the voltage regs have passive cooling they are fine. Ivy is extremely efficient and puts less load on voltage regs compared to previous CPUs.
    
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post #6 of 7
Thread Starter 
Quote:
Originally Posted by gurusan View Post

It's normal. Don't worry about it, as long as the voltage regs have passive cooling they are fine. Ivy is extremely efficient and puts less load on voltage regs compared to previous CPUs.

Thanks, that's all I needed to hear xD
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Windows 7 x64 Ultimate ViewSonic VA2226W 22" Corsair HX750W Coolermaster HAF X 
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post #7 of 7
If you want to cool them better than a factory heatsink can, you can get small heatsinks (available in either copper such as the EnzoTech C110 ones which cool extremely well, or in aluminum such as the MicroCool heatsinks which have slightly less ability to dissipate heat but are available in the color to match your MB). These use a small adhesive thermal pad to attach to each VRM, and as each is cooled separate from the rest, there is the potential to have lower temps as the single heatsink is more likely to hit a wall sooner.
Those coolers for RAM that have 2-4 small fans can also be decent VRM coolers since the air is blown down and across them.

You can use either method, or both, and you should have significantly lower temps if you combine the two. Of course, you can get a water block for the motherboard, which is what I am doing, but it is obviously a much more expensive and complicated method.
   
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CPUMotherboardGraphicsGraphics
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GraphicsRAMHard DriveHard Drive
EVGA GTX780Ti Classified K|ngp|n Edition @ 1483... 16GB G.Skill Ripjaws-Z @ DDR3-2248 9-10-9-26 1T Samsung 830 256GB SSD WD10EZEX 1TB HDD 
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WD10EALX 1TB HDD Seagate Barracuda 7200.14 1TB WD3200AAKS 320GB HDD WD5000HHTZ 10krpm 500GB VelociRaptor 
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LG/Hitachi Slim DVD-R/W Custom MB-Backside VRM-sinks (Copper) 3x NZXT RF-FX140LB 1-2krpm 98.3CFM Case Fans 2x Corsair SP120-PE Case Fans 
CoolingCoolingCoolingCooling
Heatkiller GTX680 "Hole Edition" Block + Backplate XSPC Single-Bay Res (Single 5.25 bay) EK Multioption Res X2 - Advanced 150 DD "Fill-Port Res" + Fill-Port Fitting (Red) 
CoolingCoolingCoolingCooling
2x MCP35X + Heatsinks/80x15mm Fan XSPC EX420 Alphacool NeXXos UT60 240 6x Bgears Blasters 140mm 1800rpm Fans 
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Sleeved Wires w Paracord myself (no Heatshrink) Custom Front and Top Panels w HexxMesh *In Prog... Working on Custom Pedestal Prototype 
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