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Author Topic: [BRAG] Highest Stable Card Clocks, Show Proof  (Read 2142 times)
m3sSh3aD
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October 19, 2011, 08:19:40 PM
 #21

 Heya, mesh. Very sexy. Thanks for the clearification on the volts. What brand 5850's are those?  I assume that GPU 2 on the left group is being mounted(terminology?) as the display over team viewer? Or is just hotter naturally or not getting good air flow? Wondering why it is so much hotter than the others and slightly lower hash.? =)  And, have you tried dropping the volts any lower for either of your 5850 groups? If so did it become unstable for you?

  That bottom 5870 stat is very sexy! Love seeing the low volts on it. ;p

Missing a 1 here and there and you have blown hardware Smiley I use a program called teamviewer. It works on android to so i can control everything from my phone wherever i am in the world Smiley or any computer of cause Smiley

1 rig (a wooden table) doesn't have as good air flow. THe converted METAL table can release heat UP also, whereas my first rig cant. WHy i thought catfish's new setup is great, i just think hes blowing the hot air down?Huh i know mine suck in from the front and side and blow out the back (the front been where the ports are. Seem to anyways Smiley

Bit rig 1

http://imageshack.us/photo/my-images/710/imag0068d.jpg/

Bitcoin rig 2

http://imageshack.us/photo/my-images/14/imag0069f.jpg/

pics big so just linked Wink I got the fans blowing across the cards going forward in them pics, the metal table also as a few blowing up behind it and generally more fans Smiley I use a 12" fan/filter etc to expel all the air out the room in less than 10 seconds which draws air from outside through some windows. I recon this setup will handle 30-40+ cards before heat becomes a major issue. THen theres always HVAC Smiley

ARS down so mining to bitcoins.lc Sad ARS is amazing compared to all the others. Guy uses amazon for servers, think he needs a new provider Smiley
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catfish
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October 19, 2011, 08:37:47 PM
 #22

Latest rig is designed to blow all hot air UP. Giving convection a helping hand, so to speak.

Check the middle shelf - there are three domestic extractor fans screwed in there - they are 240V devices and the fans blow air UPWARDS. The idea is that all hot air will either exit out of the GPU bracket grilles (i.e. the bits that the air *should* exit from if they were in a PC case) or sideways out of the tops of the cards. This will be resisted by fans blowing air *inwards* at those points. A test with a desk fan blowing directly at the open case worked fine.

The idea is mainly to provide an enclosed box that can be used as furniture... and then the exorbitant electricity bill I get in the UK from this lark (four figures a quarter) will be sufficient to heat my house as well Smiley

The previous design had the GPU fans trying to suck air *down* onto the horizontal cards - fighting thermodynamics. And, unsurprisingly, it didn't work too well.

The latest design works very well indeed... it'd work even better with more fans on the middle shelf, since the outlets are only 100mm and the cards between the three fans run hotter than the cards directly above any of the fans.

I'm happy with it, it has a few duff design features (getting to the ethernet ports is a bitch) but it's tidy and high-density. Not much floor space for a fair amount of hashing power (around 4 GH/sec, lightly overclocked, giving around 1.95 MH/W efficiency).

Once I've finished this one (doors, additional input fans) and investigated whether my girlfriend and I can sleep with the rig sitting outside the bedroom on the landing (where it needs to be to heat the stairwell around the first floor area)... I'll use the old shelf rig to build another with the remaining boards, though it won't be anywhere near as powerful since I only have one 6950, four 5830s and all my old 5770s left Smiley Will be quieter though Smiley

As to control features, I've written monitoring software in Ruby for a laugh - it spits out bits of HTML so my main web server can patch them together to show the entire mining farm status in one table. And of course, all miners (except the 6870 I chucked into my Mac Pro main workstation for teh lulz... and *worked* woah) are Linux so SSH from my iPhone / iPad / airbook or any handy unix-based device will let me sort them out if necessary. OK, Windows too, assuming Putty is installed Wink

...so I give in to the rhythm, the click click clack
I'm too wasted to fight back...


BTC: 1A7HvdGGDie3P5nDpiskG8JxXT33Yu6Gct
m3sSh3aD
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October 19, 2011, 09:36:43 PM
 #23

I'm happy with it, it has a few duff design features (getting to the ethernet ports is a bitch) but it's tidy and high-density.

haha, had me laughing cause i been there so many times with this kind of stuff. I'm strapped for cash at the minute but i'd love have a couple of K just to do a sick setup. Soon as i get back from india and get set up next year, you know im going build a kick ass 7 series 8 card beast Smiley

ARS BACK  Grin
catfish
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teh giant catfesh


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October 20, 2011, 10:42:26 AM
 #24

I'm happy with it, it has a few duff design features (getting to the ethernet ports is a bitch) but it's tidy and high-density.

haha, had me laughing cause i been there so many times with this kind of stuff. I'm strapped for cash at the minute but i'd love have a couple of K just to do a sick setup. Soon as i get back from india and get set up next year, you know im going build a kick ass 7 series 8 card beast Smiley

ARS BACK  Grin
Didn't find out that Ars had a pool till very recently - but I'd already switched to MMC who are a great bunch.

I was a fully-paid-up member at Ars before Condé Nast took over - spent a LOT of time in the Mac Ach. Fun times, the flamewars with BadAndy before he got banned were great fun. It was around the time when 'Apple going Intel' was speculation... some guys there had invested their entire career into Altivec optimisation and were pretty miffed that the PowerPC was going to be obsolete on their favourite platform (Mac OS X). Obviously, G4s are still used extensively in embedded kit (routers, etc.) but the market for hardcore optimisation experts shrank as a result...

Getting off topic! I did manage #1 in RAC on Seti using my quad G5 once - due to Altivec optimisations. If we didn't have GPUs like modern kit, I reckon the G5 Macs would be the best mining machines, due to the additional vector instructions in the CPU.

Actually... that's an idea... I wonder how much power the fastest of the G4s optimised for embedded applications consume these days? It can't be hundreds of watts, since you'd need a serious power brick for them. The G4s are used in routers... and have the Altivec instruction set. This is wildly off topic so I'm off to start another thread...  Wink

...so I give in to the rhythm, the click click clack
I'm too wasted to fight back...


BTC: 1A7HvdGGDie3P5nDpiskG8JxXT33Yu6Gct
m3sSh3aD
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October 20, 2011, 12:31:58 PM
 #25

I'm happy with it, it has a few duff design features (getting to the ethernet ports is a bitch) but it's tidy and high-density.

haha, had me laughing cause i been there so many times with this kind of stuff. I'm strapped for cash at the minute but i'd love have a couple of K just to do a sick setup. Soon as i get back from india and get set up next year, you know im going build a kick ass 7 series 8 card beast Smiley

ARS BACK  Grin
Didn't find out that Ars had a pool till very recently - but I'd already switched to MMC who are a great bunch.

I was a fully-paid-up member at Ars before Condé Nast took over - spent a LOT of time in the Mac Ach. Fun times, the flamewars with BadAndy before he got banned were great fun. It was around the time when 'Apple going Intel' was speculation... some guys there had invested their entire career into Altivec optimisation and were pretty miffed that the PowerPC was going to be obsolete on their favourite platform (Mac OS X). Obviously, G4s are still used extensively in embedded kit (routers, etc.) but the market for hardcore optimisation experts shrank as a result...

Getting off topic! I did manage #1 in RAC on Seti using my quad G5 once - due to Altivec optimisations. If we didn't have GPUs like modern kit, I reckon the G5 Macs would be the best mining machines, due to the additional vector instructions in the CPU.

Actually... that's an idea... I wonder how much power the fastest of the G4s optimised for embedded applications consume these days? It can't be hundreds of watts, since you'd need a serious power brick for them. The G4s are used in routers... and have the Altivec instruction set. This is wildly off topic so I'm off to start another thread...  Wink


haha, brilliant Smiley Just noticed MMC just, seems very interesting and i like there system. Just not a fan of PPLN. I donate 1.1 to ARS (Its not them thereselves, Its 1 guy called burningtoad) and .3 to CGminer so the 0.5 on MMC aint a problem but ARS asnt missed a beat for me and seems to pay better than anywhere else. My fallback server is bitcoins LC which i may change to MMC but i dont really want to move without a good enough reason. I donate to all the software i use personally but i do like MMC's concept... mmm
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