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Author Topic: How long does a fan last @ 100% speed?  (Read 9622 times)
mrb
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March 12, 2012, 09:30:21 PM
 #21

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.
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DeathAndTaxes
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March 12, 2012, 09:46:34 PM
 #22

7% isn't 0%.    Now if your were on year 5 with 0% failure rate then maybe it proved something.
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March 12, 2012, 09:51:29 PM
 #23

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
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March 12, 2012, 10:45:43 PM
 #24

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.
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March 12, 2012, 11:34:45 PM
 #25

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.

I don't beg - If I do something to deserve your BTC, you can find my address on the invoice.  Wink
zvs
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March 16, 2012, 02:05:44 PM
 #26

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


Dacentec, best deals for US dedicated servers. They regularly restock $20-$25 Opterons with 8-16GB RAM & 2x1-2TB HDD's (ofc, usually lots of other good stuff to choose from).  I did a Serverbear benchmark of one of my $20/mo Opteron (June last year), it's here.  Have had about a half dozen different servers with Dacentec, & none have failed to sustain at least 40MB/s (burst higher). My favorite is a 12-month rent-to-own ZT Systems 2XL5520 16GB 2x2TB SATA for $40/month (got lucky with the 'off-brand', haven't seen a RTO 2xL5520 for under $50/mo since -- at least for monthly contracts).  wholesaleinternet.com has some ancient 2-core intel CPUs @ $10/mo sometimes (I got an Intel Core 2 6300 @ 1.86GHz, with a 250GB HDD with 46000 hours on it, LOL. $20 @ Dacentec is much better, if you can grab one). joesdatacenter.com (same location as Wholesale Internet) also occasionally has specials (or if you don't want to wait, it has an AMD Opteron 170 @ $16/mo).
grue
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March 16, 2012, 04:27:55 PM
 #27

to avoid malfunctions, gpu fans requires a degree of savvy and caginess that for many may take years to master, if ever
Huh Huh Huh
one should seek assistance from a professional before prematurely attempting operations

It is pitch black. You are likely to be eaten by a grue.

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Live and enjoy experiments


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March 16, 2012, 10:16:14 PM
 #28

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
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