Sapphire 5850 Fan Dead

[rethaw]

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.

[1714174736]

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[1714174736]

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[chungenhung]

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

[being]

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

[pekv2]

Had anyone successfully peal the sticker back to find an oil well on the sapphire 5850/5830's?

[hdfxst]

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

[pekv2]

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.

[hdfxst]

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

[ArtForz]

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.

[pekv2]

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.

[mikeo]

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.

[phelix]

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.

[Transisto]

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)

[pekv2]

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

Agreed.

[goxed]

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.

[epsillion]

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

[BkkCoins]

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]

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

[Transisto]

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.

[SlaveInDebt]

Worked fine, several months since then without issue.

[carlo]

Does somebody have some pictures how i can disassembe the fan from a Sapphire 5850 Xtreme ?

Thanks