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Remember remember the 5th of November
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January 29, 2012, 11:32:33 PM
 #1

My 5850 was at the brink of death, the fan was buzzing,scratching and basically the sound was horrible.

I opened the card with the intent to remove the fan and re-oil it. Sadly, some screws were stripped, so...I resorted to the hardcore method of forcibly opening it, melting the plastic where the screws were.
So, in the end I was able to open it, making holes in some visible places, but it got the job done. Now, I am well aware of the risks involved in using vegetable oil, either way, I had no choice but to use one
since I had no machine oil and was a Sunday.

Same RPM of the fan, no buzzing, HOWEVER! Temps, were reduced drastically.

Before: 75-81C core, 110VRMs at 600mhz mem,725 core, 1.075mV, 58-60% fan speed.
After: 60C core,83C VRMs, 600mhz mem,725 core,1.075 mV, 45% fan speed.

So basically, temps were reduced with me just re-oiling the fan which just fixed the horrible buzzing sound. It is extremely odd that the temps are now much lower than before.
Of course, since new furniture was purchased, I had to move the computer in a different position, which might have helped about this.

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January 30, 2012, 02:40:20 AM
 #2

What is the make of the 5850? i have some gigabyte ones with fan issues.
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January 30, 2012, 03:05:37 AM
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The gzz gzz gzz sound of a dying fan is it spinning up, and then hitting some resonance frequency where it oscillates, causes a whole bunch of friction, and slows down. It is no wonder that the card is cool with a properly operating fan.

Remember remember the 5th of November
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January 30, 2012, 08:16:10 AM
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Well it's just that the temps are 20C lower. I am ok with that, as long as it's not a sensor bug.

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January 30, 2012, 08:34:28 AM
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The gzz gzz gzz sound of a dying fan is it spinning up, and then hitting some resonance frequency where it oscillates, causes a whole bunch of friction, and slows down. It is no wonder that the card is cool with a properly operating fan.
Yup, Just pretend that your fan is at 0%, Even if it rev's alllllll the way up to 90%, If it's trying to reach 92% and it goes GZZZzz--back down to 0-1-2-3-4-5-60-70-80-92%--GZZZzz 0-1-R
And we all know that No fan=heat

http://bitcoin-otc.com/viewratingdetail.php?nick=DingoRabiit&sign=ANY&type=RECV <-My Ratings
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January 30, 2012, 10:10:54 AM
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You will want to get that fan cleaned and properly re-oiled with machine oil as vegetable oil will quickly turn rancid and gum up, possibly making the fan performance worse than it was.
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January 31, 2012, 02:52:58 AM
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So, in the end I was able to open it, making holes in some visible places, but it got the job done. Now, I am well aware of the risks involved in using vegetable oil, either way, I had no choice but to use one
since I had no machine oil and was a Sunday.

Make sure to add some fish oil for it to get some more omega 3 or the omega 6 rich nature of the vegetable oil will give it heart disease, cancer and all sorts of other awful diseases...  Roll Eyes

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January 31, 2012, 12:37:34 PM
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Maybe because some of us in the bitcoin community still have a sense of humour.

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January 31, 2012, 01:14:52 PM
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Maybe because some of us in the bitcoin community still have a sense of humour.

No man.  This is serious.  Bitcoin is money.

https://www.bitcoin.org/bitcoin.pdf
While no idea is perfect, some ideas are useful.
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Remember remember the 5th of November
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February 01, 2012, 11:06:32 AM
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Well, the "patch" has worn off. It helped, quite a lot. Now it's time for some real oil.

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