How long does a fan last @ 100% speed?

[mrb]

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.

[DeathAndTaxes]

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

[Littleshop]

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. 

[mrb]

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.

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.

[pla]

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.

[zvs]

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

[grue]

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

[bitcool]

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?