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Author Topic: Are my GPU Fans going to die soon?  (Read 1773 times)
CrazyGuy
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July 23, 2011, 06:09:14 AM
 #1

So I've been running 2 6970s 24/7 at 100 percent fan speed for the past month, should I be expecting to them to die quickly? Anyone have their fans die out yet? I'm hoping that if the fans do die while I'm at work the bios will shut the cards down so I don't come home to a couple of melted GPUs. These are the stock reference 6970 fans.

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Pentium100
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July 23, 2011, 06:17:31 AM
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If the fans have good bearings they should be able to spin at full speed for a long time. However, at 100% speed the heatsink will accumulate dust faster than at lower fans speeds, so you will need to clean it more often.

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vapourminer
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what is this "brake pedal" you speak of?


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July 23, 2011, 06:53:25 AM
 #3

had two fans die in my years of folding with 24/7 100% fan speeds: ATI HD4850 (reference design) and HD3870 (zerotherm HSF). took like 3 years of non stop 100% fan speed to kill them. other cards Ive had have run years at 100% with no issues.

my personal opinion is dont worry about it, aftermarket coolers are fairly cheap. BUT case fans are cheaper still, no brainer easy to replace, and allow a reduction in GPU fan speed for the same temps. HOWEVER its a good idea to keep the card fans at 60% (or so) minimum as the cards memory and VRMs depend pretty much solely on airflow from the GPU fan.
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July 23, 2011, 07:02:30 AM
 #4

However, at 100% speed the heatsink will accumulate dust faster than at lower fans speeds, so you will need to clean it more often.

This is GOOD advice.

Unless your rigs are in a 'clean-room'... Wink

Cheers,
Kermee

chungenhung
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August 24, 2011, 05:25:37 PM
 #5

My sapphire 5850 fan is half dead.
At 100% speed, it runs at 500rpm.
The fan is making some squeaky noise.

Any way to "lube" the fan bearing? How hard would it be?
Or am I better off sending it for an RMA? and pay the $10 shipping fee....

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August 24, 2011, 05:36:26 PM
 #6

The only graphics card I know of which the fan is likely to die is the 5970.

P.S. Where are you running those cards?  I've read those 6970's put out quite a few decibels.

hdfxst
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August 25, 2011, 12:31:29 AM
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take the fan apart and clean it and lube it (i use 0-30 synthetic engine oil).if you have old fans laying around practice on them,take the sticker off, pull the plug,and there's a plastic clip that holds it together.
pekv2
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August 25, 2011, 12:59:21 AM
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take the fan apart and clean it and lube it (i use 0-30 synthetic engine oil).if you have old fans laying around practice on them,take the sticker off, pull the plug,and there's a plastic clip that holds it together.

Yup, it will save your fans that is if the fan has an oil well.

Did this on all my 120mm fans, for the 6970's/5850's, as hdfxst suggested, pull the sticker see if there is a rubber plug and oil well.

http://www.overclock.net/air-cooling/773256-prepping-sleeve-bearing-fan-work.html
chungenhung
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August 25, 2011, 01:03:31 AM
 #9

What if I take the fan apart and found there is no oil well? or what if it still doesn't work?
Then since the fan was removed, Sapphire would deny warranty on it.
I think i am gonna RMA it.

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hdfxst
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August 25, 2011, 01:17:14 AM
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This will void your warranty,but technically you voided your warranty when you overclocked it
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August 25, 2011, 01:24:56 AM
 #11

What if I take the fan apart and found there is no oil well? or what if it still doesn't work?
Then since the fan was removed, Sapphire would deny warranty on it.
I think i am gonna RMA it.

Ahh so it is true, removing the fan from the HS voids the warranty, omg, that is f*(&^&*^ retarded.
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