How long does a fan last @ 100% speed?

bitcool

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Quote from: zvs on March 16, 2012, 09:05:44 AM

to avoid malfunctions, gpu fans requires a degree of savvy and caginess that for many may take years to master, if ever

one should seek assistance from a professional before prematurely attempting operations

Being sarcastic, or trying to be? Undecided

grue

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Quote from: zvs on March 16, 2012, 09:05:44 AM

to avoid malfunctions, gpu fans requires a degree of savvy and caginess that for many may take years to master, if ever

Quote from: zvs on March 16, 2012, 09:05:44 AM

one should seek assistance from a professional before prematurely attempting operations

zvs

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https://web.archive.org/web/*/nogleg.com

to avoid malfunctions, gpu fans requires a degree of savvy and caginess that for many may take years to master, if ever

one should seek assistance from a professional before prematurely attempting operations

pla

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Quote from: Miner612 on March 12, 2012, 04:06:14 PM

I had to laugh at that too. The things you read on this forum, just hilarious. Everyone is a professional.

I know, right? Lookit this moron, who answered the initial poster by telling him the right pinout to properly convert between 2/3/4 wire fans off the top of his head, yet seems blissfully unaware of the high fan failure rate experienced by those unwise enough to run a stock bottom-of-the-barrel cooling fan. Whadda maroon!

I do have to agree with you about the truly... "incredible"... level of expertise on this forum, however.

mrb

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Quote from: Littleshop on March 12, 2012, 04:51:29 PM

Considering that it is 17% for the reference fans, the ones most of us are stuck with, seems like the figure I am going to use. And on those fans it is speed as well as dust that are the factors that kill them.

Mine are reference fans as well. All HD5970s are reference designs.

Quote from: DeathAndTaxes on March 12, 2012, 04:46:34 PM

7% isn't 0%. Now if your were on year 5 with 0% failure rate then maybe it proved something.

7% still proves my point as it is significantly inferior to the 17% of someone who doesn't even run at 100% fan speed. Besides, why would you want to mine with a 5-year old card that consumes 4 times the energy to produce the same amount of work? I expect to upgrade my 5970s after about 2-2.5 years. They are already more than halfway through their service life.

I think you guys also forget that skimping on cooling and running a card 10C hotter will wear out the electronic components faster.

Littleshop

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Quote from: mrb on March 12, 2012, 04:30:21 PM

Quote from: Littleshop on March 12, 2012, 03:45:58 PM

17% failure rate, NOT running at 100% fanspeed. I would say that does uphold the 'fud' about killing fans within a year running 100% fanspeed.

My lower 7% AFR at a higher 100% fan speed proves you wrong.
My point is that dust, not fan speed, is a much bigger factor affecting ball bearing life span.

Dust, dust, dust. It's all about dust.

Considering that it is 17% for the reference fans, the ones most of us are stuck with, seems like the figure I am going to use. And on those fans it is speed as well as dust that are the factors that kill them.

DeathAndTaxes

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Gerald Davis

7% isn't 0%. Now if your were on year 5 with 0% failure rate then maybe it proved something.

mrb

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Quote from: Littleshop on March 12, 2012, 03:45:58 PM

17% failure rate, NOT running at 100% fanspeed. I would say that does uphold the 'fud' about killing fans within a year running 100% fanspeed.

My lower 7% AFR at a higher 100% fan speed proves you wrong.
My point is that dust, not fan speed, is a much bigger factor affecting ball bearing life span.

Dust, dust, dust. It's all about dust.

Miner612

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FPGA convert

Quote from: DeathAndTaxes on March 11, 2012, 05:52:09 PM

Quote from: pla on March 11, 2012, 05:48:20 PM

They also don't tend to die while on, only when spinning up. So for a 24/7/365.24 machine, you really don't need to worry about it. Seriously, looking at 5+ years even at full speed before it dies

LOLZ.

I had to laugh at that too. The things you read on this forum, just hilarious. Everyone is a professional.

Littleshop

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Quote from: mrb on March 12, 2012, 02:53:06 PM

Quote from: DeathAndTaxes on March 12, 2012, 09:40:09 AM

Or just variance. I got some cards going on >1 year. Although out of 24 5970s I have had to replace 4 fans so far and not all of them have been running a year.

4 out of 24 is a 17% failure rate for an average period of less than a year... For comparison my AFR (annualized failure rate) for fan ball bearings is 7%... far from the "OMG you will kill your cards in 6 months if you run the fan at 100%" FUD you find on the forums.

17% failure rate, NOT running at 100% fanspeed. I would say that does uphold the 'fud' about killing fans within a year running 100% fanspeed.

But ok... if you want to run your fans at 100%, go ahead. Miners offline=lower difficulty. Fans dead=chance of purchase of replacement from me. Grin

bitcool

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Quote from: mrb on March 12, 2012, 02:53:06 PM

The cards are vertical (motherboards are horizontal).

Quote from: mrb on March 12, 2012, 02:53:06 PM

4 out of 24 is a 17% failure rate for an average period of less than a year... For comparison my AFR (annualized failure rate) for fan ball bearings is 7%... far from the "OMG you will kill your cards in 6 months if you run the fan at 100%" FUD you find on the forums.

Quote from: mrb on March 12, 2012, 02:53:06 PM

With air filters on the air ducts going to the server room.

Quote from: mrb on March 12, 2012, 02:53:06 PM

I actually do force the fans to run at 100% with aticonfig.

Wow, looks like you did all the right things -- hats off to you Sir.

Now I almost feel ashamed of the atrocity I've committed to my workers Wink

mrb

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Quote from: rjk on March 12, 2012, 09:25:31 AM

Interesting, probably the longest lasting 5970 fans in history, if you have actually been running them at 100% the whole time. What is the card orientation?

The cards are vertical (motherboards are horizontal).

Quote from: DeathAndTaxes on March 12, 2012, 09:40:09 AM

Or just variance. I got some cards going on >1 year. Although out of 24 5970s I have had to replace 4 fans so far and not all of them have been running a year.

4 out of 24 is a 17% failure rate for an average period of less than a year... For comparison my AFR (annualized failure rate) for fan ball bearings is 7%... far from the "OMG you will kill your cards in 6 months if you run the fan at 100%" FUD you find on the forums.

Quote from: johnyj on March 12, 2012, 10:09:45 AM

I'm curious how do you filter the air?

With air filters on the air ducts going to the server room.

Quote from: bitcool on March 12, 2012, 10:21:18 AM

I don't think mining 24/7 on HD5970 necessarily means 100%, they rarely reach full speed.

If you want to know how loud 100% is, plug the cards in PCI-e without connecting those 4/6 pin power cables, they are VERY noisy.

I actually do force the fans to run at 100% with aticonfig.

Kluge

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They seem to have many varieties for case fans. Anyone have experience with some of the more exotic constructions? Rifle, liquid, & maglev, for example?

bitcool

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Quote from: phorensic on March 12, 2012, 01:14:27 PM

Quote from: bitcool on March 12, 2012, 10:17:24 AM

Quote from: phorensic on March 12, 2012, 01:03:02 AM

A proper ball bearing fan should last a really long time. It's the cheapo sleeve bearing fans placed on GPU's that fail when pushed hard.

Then I should consider myself lucky, they are "double ball bearings", a lot of balls.

I love that marketing gimmick on small fans, lol. They act like it's an industrial HVAC fan with a foot long shaft that needs to be supported on both ends or something. Might as well say something like "DOUBLE BALL BEARING TECHNOLOGY! -- Our 120mm fans have a huge shaft that requires a lot of balls"

yeah ~~ but it always feels good knowing you have a lot of balls under your belt. Grin

phorensic

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Quote from: bitcool on March 12, 2012, 10:17:24 AM

Quote from: phorensic on March 12, 2012, 01:03:02 AM

A proper ball bearing fan should last a really long time. It's the cheapo sleeve bearing fans placed on GPU's that fail when pushed hard.

Then I should consider myself lucky, they are "double ball bearings", a lot of balls.

I love that marketing gimmick on small fans, lol. They act like it's an industrial HVAC fan with a foot long shaft that needs to be supported on both ends or something. Might as well say something like "DOUBLE BALL BEARING TECHNOLOGY! -- Our 120mm fans have a huge shaft that requires a lot of balls"

bitcool

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Quote from: mrb on March 12, 2012, 03:44:19 AM

I have HD5970s that have been mining 24/7 with the fan at 100% for 1+ year.

I don't think mining 24/7 on HD5970 necessarily means 100%, they rarely reach full speed.

If you want to know how loud 100% is, plug the cards in PCI-e without connecting those 4/6 pin power cables, they are VERY noisy.

bitcool

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Quote from: phorensic on March 12, 2012, 01:03:02 AM

A proper ball bearing fan should last a really long time. It's the cheapo sleeve bearing fans placed on GPU's that fail when pushed hard.

Then I should consider myself lucky, they are "double ball bearings", a lot of balls.

johnyj

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Quote from: mrb on March 12, 2012, 03:44:19 AM

I have HD5970s that have been mining 24/7 with the fan at 100% for 1+ year. My oldest one has been mining for 1.25 years. But then again I filter my air. There is barely any dust visible on the fan blades. They wouldn't last that long in a dusty environment.

Also, non-reference cards sometimes use fans of quality inferior to the ones found on reference AMD cards such as the HD5970.

I'm curious how do you filter the air?

DeathAndTaxes

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Quote from: rjk on March 12, 2012, 09:25:31 AM

Quote from: mrb on March 12, 2012, 03:44:19 AM

I have HD5970s that have been mining 24/7 with the fan at 100% for 1+ year. My oldest one has been mining for 1.25 years. But then again I filter my air. There is barely any dust visible on the fan blades. They wouldn't last that long in a dusty environment.

Also, non-reference cards sometimes use fans of quality inferior to the ones found on reference AMD cards such as the HD5970.

Interesting, probably the longest lasting 5970 fans in history, if you have actually been running them at 100% the whole time. What is the card orientation?

Or just variance. I got some cards going on >1 year. Although out of 24 5970s I have had to replace 4 fans so far and not all of them have been running a year.

rjk

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1ngldh

Quote from: mrb on March 12, 2012, 03:44:19 AM

I have HD5970s that have been mining 24/7 with the fan at 100% for 1+ year. My oldest one has been mining for 1.25 years. But then again I filter my air. There is barely any dust visible on the fan blades. They wouldn't last that long in a dusty environment.

Also, non-reference cards sometimes use fans of quality inferior to the ones found on reference AMD cards such as the HD5970.

Interesting, probably the longest lasting 5970 fans in history, if you have actually been running them at 100% the whole time. What is the card orientation?

Topic: How long does a fan last @ 100% speed? (Read 12117 times)