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Very hot VRM's, Looking for ways to cool them silently

post #1 of 27
Thread Starter 
Hi,

Trying to OC my graphics card without creating lots of noise with alot of fans.

The card runs with just 1.05V (0,992 in GPU-Z) and the GPU doesnt get hotter then 56 degrees.
However the VRM's reach 106 degrees !!

They have a VRM heatsink on them that is hold down with bolts and nuts.
I have reseated the heatsink twice but it gave no better results.

Are there any other VRM heatsinks that might be better or is my only solution to WC the card aswell ?

I dont want to put a fan on it because i hate noise.

Screenshot:
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post #2 of 27
Can't load screenshot. Have you tried better TIM?
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post #3 of 27
Thread Starter 
Quote:
Originally Posted by ripsaw View Post

Can't load screenshot. Have you tried better TIM?

On the GPU is MX-4
On the VRM heatsink is a strip of heat conducting tape, i cant just spread plain TIM all over the VRM's i think.....
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post #4 of 27
Quote:
Originally Posted by Farih View Post

On the GPU is MX-4
On the VRM heatsink is a strip of heat conducting tape, i cant just spread plain TIM all over the VRM's i think.....

A heatsink can only do so much compared to a fan. Have you tried considering using low dB fans? Even a small 40mm fan wont be super audible if you really hate the sound... You really need something to move the heat in those heatsinks; or else they can only do so much....
post #5 of 27
It looks like you're watercooled; are you trying to avoid using full coverage waterblock?
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post #6 of 27
Sekisui or 3m tape
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post #7 of 27
the twin frozr heatplate doesn't get good contact with the vrm. it makes contact, but doesn't have good pressure.

they placed nuts in between the plate and pcb to have a space so the plate doesn't short out the pcb.

try puttting another layer of thermal pad over the vrms. that should put more pressure on the chips.
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post #8 of 27
Thread Starter 
Quote:
Originally Posted by SectorNine50 View Post

It looks like you're watercooled; are you trying to avoid using full coverage waterblock?

Not trying to avoid, The case has just little space for more rads and my wallet is rather empty at the moment wink.gif
Quote:
Originally Posted by homestyle View Post

the twin frozr heatplate doesn't get good contact with the vrm. it makes contact, but doesn't have good pressure.

they placed nuts in between the plate and pcb to have a space so the plate doesn't short out the pcb.

try puttting another layer of thermal pad over the vrms. that should put more pressure on the chips.

I have a Gelid Icy Vision cooler on it but the VRM temps didnt go down at all.

I will try an extra layer of tape though and see if that works.

Arent there better heatsinks ? maybe full copper one's ?
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post #9 of 27
Quote:
Originally Posted by Farih View Post

Are there any other VRM heatsinks that might be better or is my only solution to WC the card aswell ?

Heatsinks are no good without airflow, and convection doesn't exactly work in your favor either as these heatsinks are facing down.
I'm waiting for delivery of a 40mm fan which i will place directly by the VRM heatsink. I think very little airflow is actually needed to lower the temps considerably.

If your Twinrozr's are anything like my Vapor-X, then the main radiator fans are too tight to enough sufficient airflow through them with reasonable fan speeds (and even if, then what goes through is already heated up).
post #10 of 27
Thread Starter 
Quote:
Originally Posted by glina View Post

Heatsinks are no good without airflow, and convection doesn't exactly work in your favor either as these heatsinks are facing down.
I'm waiting for delivery of a 40mm fan which i will place directly by the VRM heatsink. I think very little airflow is actually needed to lower the temps considerably.

If your Twinrozr's are anything like my Vapor-X, then the main radiator fans are too tight to enough sufficient airflow through them with reasonable fan speeds (and even if, then what goes through is already heated up).

Dont really want more fans especially not a 40mm fan. (the smaller they are the more noise they make)

The few fans i use all run between 500 and 650rpm, silence above anything else for me biggrin.gif

Think i have to save up for a GPU block and an extra radiator frown.gif
Was hoping to find a better heatsink or so first though....
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I7-4790K @ 4751mhz Asus Z97 Pro Gaming  HD4890 - HD5870 - HD6950 - HD7850x2 - HD7950x2... 8800GTS - GTS450 - GTX650ti Boost - GTX670 - GT... 
RAMHard DriveHard DriveHard Drive
16GB 2400mhz CL9 Ripjaws Samsung 951 NVME 256GB 250GB SSD Samsung 840 Seagate 7200rpm 3TB 
Hard DriveCoolingCoolingCooling
Seagate 7200rpm 3TB Watercool Heatkiller 3.0 Copper MagiCool Elegant plexi full copper 120mm rad. MagiCool Elegant plexi full copper 240mm rad 
CoolingCoolingCoolingCooling
Lamptron FC5 V2 fan-controller AlphaCool VP655 Pump + Plexi Top EK Spin Bay resevoir 3x Scythe Gentle Typhoon's 1450rpm 
CoolingOSMonitorKeyboard
6x Enermax Cluster White 1200rpm Windows 10 Iiyama Prolite E2773HDS 27inch - 47inch LG TV Corsair K60 - Razor BlackWidow Stealth - Logite... 
PowerCaseMouseMouse Pad
Corsair RM1000i Corsair AIR540 Logitech G502 Corepad xxxl 
AudioAudioAudioAudio
Musical Fidelity V-Dac II Reloop Direct Drive Turntable with Ortofon Conc... 2x Adam A5X Studio Monitors BeyerDynamic DT990 Pro 250ohm 
AudioAudioAudioOther
Audioquest Nighthawk Lehmann Audio Linear Headphone Amp Sennheiser HD650 Musical Fidelity V-PSU 
CPUMotherboardRAMHard Drive
AMD E-350 Asus E35M1-M 4GB DDR3 Kingston 1333mhz  1,5TB wester digital green 
Hard DriveHard DriveOptical DriveOS
640GB WD Caviar blue 500GB Samsung Spinpoint Samsung Dvd-rewriter windows xp sp2 
MonitorKeyboardPowerCase
19inch phillips tft generic Bequiet 300Watt Fratal Design Core 
MouseMouse Pad
microsoft none 
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Overclock.net › Forums › Graphics Cards › AMD/ATI › ATI Cooling › Very hot VRM's, Looking for ways to cool them silently