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Author Topic: Sapphire 5850 Fan Dead  (Read 24079 times)
rethaw
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July 03, 2011, 05:49:01 PM
 #21

I'm not sure if this would work for you as I don't (yet) have a Sapphire card, but I was able to get my fanspeed pretty low (~30%) by affixing a case fan near the ports pulling air out.

A twist-tie works fine, though if you have DVI ports sticking out you will want to space it with a small shim. Its similar to placing a fan on the other exhaust, except I found it much easier to attach it to the metal there. It seems to me the metal conducts quite a bit of heat so it effectively acts as a passive cooler, with the added fan it works even better. I think a single fan could assist with the cooling of two cards in this way.


Code:
$:~$ fan0
Fan speed query:
Query Index: 0, Speed in percent
Result: Fan Speed: 29%

$:~$ ct

Adapter 0 - ATI Radeon HD 5800 Series
            Sensor 0: Temperature - 68.00 C

Edit: The fan I have is low CFM, and nearly silent. A high CFM fan would certainly do an even better job lowering temp and fan speed.

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chungenhung
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August 24, 2011, 05:33:20 PM
 #22

And my Sapphire 5850 fan just died.... 500rpm at 100% speed.

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August 24, 2011, 05:44:41 PM
 #23

This is most likely easily fixed by adding some lubricant. I've 'fixed' quite a lot of fans with the same symptoms this way. There are tons of guides for this also. Some random one I googled - http://www.techrepublic.com/article/quiet-noisy-computer-fans-with-a-drop-of-oil/5034842
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August 25, 2011, 12:55:15 AM
 #24

Blimey. I run all my GPUs at 100% fan speed. That's 19 of the things... I guess I should start seeing failures pretty soon - I'm pretty long on Sapphire kit.

Is this purely a durability issue, or do the fans fail due to dust buildup and bearing contamination? If it's normally a dust issue, then a combination of using open-frame rigs and regular fan cleaning may help, surely?

Anyone know the aticonfig command to get the fan speed from the card? I use pplib_cmd 'set fanspeed 100' to set the fan speed, but don't know the command to get the fan speed (is it as simple as 'get fanspeed' ? - heh). - and would any impending fan failure be noticed by the fanspeed readout? The comments like chungenhung's '500 rpm at 100%' suggest that if there's any API in Linux to read the fan speed RPM, I could add an alarm to my monitoring code and catch a failing fan early, rather than wait until it stops and the card burns out Sad

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I'm too wasted to fight back...


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pekv2
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August 25, 2011, 01:12:37 AM
 #25

Had anyone successfully peal the sticker back to find an oil well on the sapphire 5850/5830's?
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August 25, 2011, 01:18:56 AM
 #26

when you pull the sticker back,pull the plug and put a drop of oil in
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August 25, 2011, 01:23:20 AM
 #27

when you pull the sticker back,pull the plug and put a drop of oil in

Yea that is what my question was, if it had an oil well, my xfx 5830 fan didn't, it seized long ago, since then I been using a huge 120mm x 38mm panaflo on the xfx 5830 hs.

So, I am guessing the sapphire extreme fans do have an oil well? If, so, I gotta contact my seller, see if it is still under warranty or what not, if not, Ima give er some lube. From reading, removing/unscrewing the fan from the HS eliminates the warranty, if so, how stupid.
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August 25, 2011, 01:38:46 AM
 #28

I had my 5850 xtreme all apart(i tried to mount an accelero on it),the heatsink off the fan out and i never looked to see how the fan came apart,the next time coins drop to 6 dollars and i shut my miners down and i'll strip it down and oil the fans.I'll take pictures
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August 25, 2011, 02:11:20 AM
 #29

If they're anything like the fans on these: http://www.newegg.com/Product/Product.aspx?Item=N82E16814102873
Once they start "growling" the single sleeve bearing (!) is totally shot. Takes about 3-5 months at 100%.
And there's no way to lubricate them.
Whoever decided to put a cheap-ass sleeve bearing fan right on top of the hottest part of the heatsink was a true genius.

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August 25, 2011, 02:15:36 AM
 #30

Whoever decided to put a cheap-ass sleeve bearing fan right on top of the hottest part of the heatsink was a true genius.

Agreed, xfx sent me three new fan units "in separate occasions", they all crapped out. I gave up on asking for new fans and did as I stated above with 120mm fan.
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August 25, 2011, 02:24:17 AM
 #31

Had a reference 5850 fan failure recently. No warranty and I didn't want to toss the card so I bought a Scythe SCVSG-1000 for ~$40US and it works great, coolest GPU in my 5-card miner, You do need to use an adhesive thermal paste (not supplied by Scythe) on the VRM chips otherwise the little heatsinks in the kit fall off and could damage the fan.

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August 27, 2011, 06:23:31 PM
 #32

Had anyone successfully peal the sticker back to find an oil well on the sapphire 5850/5830's?
did not work at all for me, I think it did not get through.   

waranty is officialy flawed as soon as you take off the fan.

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Transisto
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November 03, 2011, 07:38:38 AM
 #33

cheap-ass sleeve bearing fan
I had posted a rant on Sapphire's website about their fans.
It got deleted, They simply don't want to hear about it.

I'd say ~20% of their fan will die within 4 month.

And I'd bet 95% will die within a year, (even running at 100% 24/7 it shouldn't happen)
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November 05, 2011, 11:49:05 PM
 #34

(even running at 100% 24/7 it shouldn't happen)

Agreed.
Zonyc
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December 23, 2011, 08:34:04 AM
 #35

Another sapphire 5850 crapped fan crapped out!

I'm running two sapphire 5850s in an open air rig and noticed today that one of the fans now spins at ~500rpm @ 100%!

Has anyone found a simple solution to this problem?  The card currently runs at ~50% efficiency at temps of 95 Celsius or higher. Sad
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December 23, 2011, 08:38:12 AM
 #36

Take this with a grain of salt, but injecting 3ml Mobil 1 5W30 does wonders for my GPU fans, make sure you blot up any oil trickling out, so as not to attract dirt or fibers. I have had 3 First D fans crap out on me and with the Mobil 1 oil they have been running happily since last 6 months or so.

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December 26, 2011, 12:10:48 PM
 #37

Just found this fan available on ebay  for 58xx series cards

http://www.ebay.com/itm/NEW-Radeon-5970-Replacement-Fan-5970-5870-5850-5830-Arctic-Accelero-XTREME-/260922098081?pt=PCC_Video_TV_Cards&hash=item3cc02b41a1

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BkkCoins
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December 26, 2011, 02:30:21 PM
 #38

Wow $40 ! You can pick up used 5830s now for $75.
Check out this other thread where they're looking at what appears to be the same fan.
There is an eBay link there for a seller who has it $16 from China.

SlaveInDebt
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December 27, 2011, 07:34:55 AM
 #39

Remove top stick
Drill a hole in the top off center some
Add oil
Reapply sticker/tape

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Transisto
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December 29, 2011, 09:04:15 AM
 #40

Remove top stick
Drill a hole in the top off center some
Add oil
Reapply sticker/tape
Clever, 
Did you try it, did it work. ?

I think I did and it didn't.
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