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Author Topic: Sapphire 5850 Fan Dead  (Read 24762 times)
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April 12, 2012, 07:13:24 PM

When my 5850 (and 5870) fans fail, I just pop off the cowling, strap an 80mm casefan to the HSF unit with zip ties and fire it up.  Keeps the cards cooler than stock fan, looks ghetto as hell, but works great and its' cheap/easy to replace if/when the fan fails again.

Woot, thanks for the tip!

I bought a used Radeon 5850 and the GPU fan died within 2 weeks :-(
Help me get back in the game (send some spare BTC!):  1MZtrwLp95HG9MXgrFroki6PZ61ttLtg2v
Thank you!
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July 16, 2012, 08:12:34 AM

Didn't have my mobil1 handy but I did have transmission fluid so I put some on the metal pole after popping off the hub and it's running fine again now.  FYI, you can pop the hub off using a plastic pry tool...I used the kind you use on cars, like this though I used a slightly less cheap one, it really helps with leverage in prying it apart (I tried by hand and it's definitely pretty damned hard to pull off by hand without breaking the fan).

So if you have a buncha car tools and lubricants lying around it should be pretty trivial to fix this without drilling holes in the fan.  I cleaned out the original lubricant first though, it had basically dried out entirely and was more powder than grease.  Not sure if you could get away with using a dry lubricant like molybdenum or something...I actually have a bunch lying around in powdered form (long story), maybe when the other fan goes I'll give it a shot lol.
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July 16, 2012, 05:22:38 PM

The bearings are gone. That card is useless unless you get another heatsink/fan. Chalk it up as a loss and learn a lesson. NEVER run a fan over 50% 24/7

I've been running the fan on my 4850 at 100% 24/7 for the last 4 months. Cheesy

EDIT: Holy crap this thread is old.
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