dishwara
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Activity: 1855
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January 31, 2012, 06:32:03 PM |
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I HATE TABLES I HATE TABLES I HA(╯°□°）╯︵ ┻━┻ TABLES I HATE TABLES I HATE TABLES
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coretechs
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Activity: 362
Merit: 250
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February 02, 2012, 03:24:27 PM
Last edit: February 02, 2012, 04:27:50 PM by coretechs |
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 6 Gh/s all stock voltage or lower memclock 160mhz LinuxCoin + cgminer 2.0.8 |
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rjk
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Activity: 448
Merit: 250
1ngldh
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February 02, 2012, 05:14:32 PM |
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On the two closest rigs, how are you supporting the cards so they don't flop over and break the slots? I can't see anything holding them up. |
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muyuu
Donator
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Activity: 980
Merit: 1000
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February 02, 2012, 05:36:06 PM |
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It's almost fully covered... too much heat will stay inside. Force air cooling. If you force cold air IN unless you trapped a blackhole inside the hot air will be forced out. Now you are right if you just slapped together some shelves and cards that would be bad. It would require some "ducting". Don't laugh at my ASCII "art".
hot air out pulled out
^
| <- bank of GPUs <-|
| ---------------------- |
| <- bank of GPUs <-|
| ---------------------- |
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^ (cold air forced in)
All the ^ are fans indicating direction of airflow. Only two banks shown but more could be used. Hooking all the fans to a fan controller with some temperature probes in each bank could be used to optimize cooling. Upper bank would need higher airflow because air is lazy. Sorry, don't mean to show off... ok maybe a little  My first one, might be for sale. Uses 6 x 5" extractor fans, 4 as intakes; 1 in the top ducted down to the middle of the gpus, and 3 on the opposite side blowing air onto the back of the gpus. Then 2 fans sucking the hot exhaust heat from the front of the gpus.  And my latest creation, same kind of idea as the first one but much more refined and awesome looking. Using 3 x 6" high pressure long life fans, 4 spigot intakes that are split 2 fans to each two sections, then 1 fan on spigots and ducting extracting all 4 outlets.   Got a 5870 out on miner1 and hoping for a replacement soon then ill have to do something to sort out the cooling on the second 5870 on miner1 as its a bit high. Air in, air out, as simple as that  + all the hours tinkering  Wow. I don't think my landlord would like something like that... my rent includes bills |
GPG ID: 7294199D - OTC ID: muyuu (470F97EB7294199D)
forum tea fund BTC 1Epv7KHbNjYzqYVhTCgXWYhGSkv7BuKGEU DOGE DF1eTJ2vsxjHpmmbKu9jpqsrg5uyQLWksM CAP F1MzvmmHwP2UhFq82NQT7qDU9NQ8oQbtkQ
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coretechs
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Sr. Member
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Activity: 362
Merit: 250
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February 02, 2012, 06:46:25 PM |
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On the two closest rigs, how are you supporting the cards so they don't flop over and break the slots? I can't see anything holding them up.
I have small wood rails (made from 1/4 round) with thumbscrews that can be fastened to the end of the cards but I don't always attach it because I'm constantly tinkering and improving the layout, swapping power supplies, etc. I also have 2 ducts (not pictured) that I keep over the cards that channels the air from the fans in the back. I don't have any problem with them sitting they way they look in the pic though, it's flat and the cards don't move. |
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jjiimm_64
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Activity: 1876
Merit: 1000
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February 02, 2012, 06:51:40 PM |
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On the two closest rigs, how are you supporting the cards so they don't flop over and break the slots? I can't see anything holding them up.
I have small wood rails (made from 1/4 round) with thumbscrews that can be fastened to the end of the cards but I don't always attach it because I'm constantly tinkering and improving the layout, swapping power supplies, etc. I also have 2 ducts (not pictured) that I keep over the cards that channels the air from the fans in the back. I don't have any problem with them sitting they way they look in the pic though, it's flat and the cards don't move. I have over 90 gpus... maybe 4 or 5 have a screw holding them in place. |
1jimbitm6hAKTjKX4qurCNQubbnk2YsFw
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Turbor
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Activity: 1022
Merit: 1000
BitMinter
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February 02, 2012, 08:53:34 PM |
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I have over 90 gpus... maybe 4 or 5 have a screw holding them in place.
Do you have a pic of your farm ? I know you got the hashpower  |
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P4man
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February 02, 2012, 09:12:58 PM |
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Pending an RMA, and limited in my abilities to properly fix it by warranty seals on the screws that hold the cooler, I decided to keep my dead-fan 5870 mining until I get an RMA number:  |
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ZPK
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Activity: 1302
Merit: 1021
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February 02, 2012, 09:33:53 PM |
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Pending an RMA, and limited in my abilities to properly fix it by warranty seals on the screws that hold the cooler, I decided to keep my dead-fan 5870 mining until I get an RMA number: +1 .... you are the best ))) |
Novacoin POS mining only now
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teflone
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February 05, 2012, 05:42:48 AM |
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Pending an RMA, and limited in my abilities to properly fix it by warranty seals on the screws that hold the cooler, I decided to keep my dead-fan 5870 mining until I get an RMA number: +1 .... you are the best ))) Hahahhahaha! love it |
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BinaryMage
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February 05, 2012, 09:39:29 PM |
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 (full res @ http://ompldr.org/vY243eg/2012-02-05_13-10-55_578.jpg)  5x 5870 @ 950/300 running Phoenix 1.7.5 on BAMT (Debian 6). Motherboard is a GA-EP45-UD3P w/ PCIe extenders from Cablesaurus. PSU is a OCZ ZX1250W. Case is custom. ~435 MH/s each, ~2175 MH/s total. Cards run @ ~50C with ambient ~15C. |
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yjacket
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February 06, 2012, 11:10:17 PM |
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(full res @ http://ompldr.org/vY243eg/2012-02-05_13-10-55_578.jpg) 5x 5870 @ 950/300 running Phoenix 1.7.5 on BAMT (Debian 6). Motherboard is a GA-EP45-UD3P w/ PCIe extenders from Cablesaurus. PSU is a OCZ ZX1250W. Case is custom. ~435 MH/s each, ~2175 MH/s total. Cards run @ ~50C with ambient ~15C. How long do fans last at 100%? |
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BinaryMage
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February 07, 2012, 12:30:06 AM |
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How long do fans last at 100%?
I don't run them at that level normally; I was just seeing how low I could get the temps. They run ~55C at 70% fan and ~60C at 50%. |
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mc_lovin
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Activity: 1190
Merit: 1000
www.bitcointrading.com
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February 07, 2012, 03:43:08 AM |
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I just had to screencap this:  This is the most leet thread in existence! |
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Global BTC
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February 13, 2012, 01:48:56 PM |
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PS: Invest in a big box of smoke pellets like these:  They are great for working out what your airflow is doing. Is that really wise? Is the smoke "clean" or does it leave residues? I would love to see some pictures of someone testing the airflow of a mining rig with smoke. |
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MiningBuddy
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February 13, 2012, 09:05:35 PM |
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PS: Invest in a big box of smoke pellets like these: They are great for working out what your airflow is doing. Is that really wise? Is the smoke "clean" or does it leave residues? I would love to see some pictures of someone testing the airflow of a mining rig with smoke. The smoke didn't leave any residue on my fan blades or the inside of my case so I assume it is safe, they are usually used for testing cooker vents and such things like that. If/when I have to test it again I will record a video but it won't be for some time now as everything is setup and working perfectly. |
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fizzisist
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February 13, 2012, 09:43:39 PM |
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How about dry ice?
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Joshwaa
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February 13, 2012, 09:52:52 PM |
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How about dry ice?
Thats what I use. Just drop some in a bowl of water and good to go. No messy residue either. |
Like what I said : 1JosHWaA2GywdZo9pmGLNJ5XSt8j7nzNiF
Don't like what I said : 1FuckU1u89U9nBKQu4rCHz16uF4RhpSTV
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MiningBuddy
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February 13, 2012, 09:58:42 PM |
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Dry ice is pretty hard to come by in the UK, well at least that's what I've found. I don't seem to be able to get it from any local shops or via any kind of mail order.
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cablepair
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February 15, 2012, 08:30:55 PM
Last edit: February 15, 2012, 11:02:51 PM by cablepair |
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