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Author Topic: non-ref gigabyte 5870 fans  (Read 1155 times)
zvs
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July 04, 2012, 11:50:51 PM
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One of the two fans in my 5870 stopped working.. I took it apart once, it started working again for a day or so, stopped again..  I took it apart again, got pissed, and did bad things to the shroud.

Is there anyone that sells those fans w/ the back 'bracket' (that you screw in) still attached?  or am I gonna have to shell out like $50 for some goofy aftermarket cooler?  sigh.

or... is there some other way to handle this?  Is it safe to just remove the shroud entirely w/ just the heat sink and have a huge floor fan blowing into it?

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).
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July 05, 2012, 05:43:44 AM
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Having a big ol floor fan wont work well. It doesn't have the necessary pressure to squeeze in fresh air between the cooling fins. You're probably better off cobbling together 2 80mm fans and tying them on. 120mm probably won't have the necessary pressure, plus if they're anything like the non reference 5850's, that is a loooong heatsink.

If you're intent on mining with it, find some 80mm's and tie em on. If you're gaming or selling, better start looking for replacement/aftermarket parts unless you're comfortable selling as a frankenstein.

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July 06, 2012, 01:53:08 PM
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Having a big ol floor fan wont work well. It doesn't have the necessary pressure to squeeze in fresh air between the cooling fins. You're probably better off cobbling together 2 80mm fans and tying them on. 120mm probably won't have the necessary pressure, plus if they're anything like the non reference 5850's, that is a loooong heatsink.

If you're intent on mining with it, find some 80mm's and tie em on. If you're gaming or selling, better start looking for replacement/aftermarket parts unless you're comfortable selling as a frankenstein.

I used some zip ties and dropped a fairly decent silverstone fan level w/ the left side (haha)... I can still only get 340mhash with it (750/150) without having GPU temp go above 70o (and VRM's above 76-77o)... but at least it's going again.... 75% efficiency, not too bad..

I'm starting to look around to see where I can find one of those gimpy fans that gigabyte uses in their cards.  Shouldn't be more than $10-$11, I'd think..

I could also do what you said, just tie on some other fans... like some of these replacement ref fans.   I'd need to buy some 4pin extension cables or something though..

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).
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