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I received both 7970 in functioning condition (albeit caked in dust and hair). Was willing to receive payment only after tracking number was issued
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Hello! We at www.weloveltc.com are offering a 5 LTC bounty on top of normal payout for the next 3 blocks we find on the pool. We have stratum as well as getwork. Check us out at www.weloveltc.com 5 LTC is wayy generous, im not sure if your ever going to pay it out, so il pass on this one. You say that as if $10 is like a years worth of wages. $10 is not a lot by any means. |
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I haven't tuned the software on these rigs for minimum overhead and I haven't overclocked the video cards yet either. Currently the farm is running at ~6GH/s or ~500MH/s for each 7970. I built it as fast as I could to get the mining started so they are currently running Ubuntu desktop. Ultimately I plan to create a Gentoo USB install that automatically tunes and mines each rig. Link to imgur album[img]https://i.imgur.com/JqqAthG.jpg[/] [img]https://i.imgur.com/piuEC1u.jpg[/] [img]https://i.imgur.com/biOdilD.jpg[/] [img]https://i.imgur.com/epLHvGy.jpg[/] [img]https://i.imgur.com/i4RXSWC.jpg[/] [img]https://i.imgur.com/nmCdY4n.jpg[/] i like how you've stripped away half the cases - did you just drill out the rivets on some cheap/old cases? That's exactly what I did. I used a dremel and just drilled out the rivets on the sides I wanted to cut away. I had to use some tin snips to cut away some of the bottom of the case as the 3rd video card would have used up a 9th PCIe slot which the cases didn't have. The cases are new and were about $25 each which is probably cheaper than some of the custom case builds I've seen. So why exactly did you buy cases at all? Waste of money.. |
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If a psu is not sufficient the computer will randomly reboot when you start taxing the system, or in some cases not start up at all.
Could it burn from the ground up? I think so... An underpowered PSU will not burn or destroy anything. However, a cheap nasty one, will. There's a difference. I actually think a 450W one will work for a single 7970, but same as what I said before, it has to be a single rail, and it can't be from a cheap manufacturer. Only use trusted brands. Edit: I would trust This PSU to power a 7970, even tho it's only a 450W. However, it's actually more expensive than the 500W I mentioned earlier, so idk why you'd want to do that. This is the exact same power supply I use for testing and burning in power hungry cards such as 5970 and 7970. I recommend it as well for the purpose of running a single 7970. For what it's worth, I run two 5970 on one of my 450 watt capstones, but undervolted while overclocked. No burning smell, very little heat, no random reboots, nothing. Rock solid. |
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guiminer is your problem. use bfgminer or cgminer. there is no "hardware failed verification" error with them
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Don't overclock your CPU. No point, just wastes electricity and more heat. If you want to overclock anything, do it to your GPU core, but I would recommend against any sort of gpu core voltage increases. Bitcoin mining (and any other coin) is starting to approach "not profitable". If you increase voltage, any hashrate gains you see from higher overclocks will be lost from higher electric bill.
Person above me ... wtf?
I use slow celeron g530 (2.4GHz) and g1610 (2.6GHz) without overclocking with 6 radeon 7970. CPU usage is always very low, <3%. Hashrate is also as expected, if not slightly higher, per MHz per shader. With GPU cores from 1090 to 1140 and memory underclock to 150, I get hashrates from 653-682, all the while undervolting to 1.05v
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My testbed is a dual core athlon, hard drive, etc. It uses a 450 watt rosewill capstone with a kill-a-watt. with radeon 7970 20% powertune on OCCT:GPU:3D (this uses a LOT of gpu electricity), the entire rig pull about 330-380 watts at the wall. It's not uncommon for the GPU to approach 90C on auto fan while being burned in with occt (this is like furmark, but better)
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I'll sell you a NewEgg giftcard for -10%.
I'm not entirely sure what that means, but Newegg doesn't sell any reference 7970's anymore anyways (They are knockoffs, reproductions with poor quality control), so I wouldn't be interested. Thanks anyways. |
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risers do the exact same thing electrically, without invalidating the warranty on your motherboard.
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what is it?, looks like an asic single or something  its a bfl jalapeno |
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Why do you need a powered riser? NO! NO! NO!.
Besides, the adapter already has a PCI-E power plug for supplemental power. Theres your power right there.
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Hi, I have submitted my pictures and config to the website. Please verify it soon so it is added. I think my setup is most is the 3rd most impressive. I should also have #1 spot for SHA256 hashing.
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My electric bill is in the area of 7000 kilowatt hours. It's a relatively expensive bill, and I even have a large commercial grade window exhaust fan in the basement to keep venting out hot air, and I'm not worried about da fedz.
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This is a primary reason why I don't do non-ref cards. You never know what is missing until after you've already bought them. With reference cards, you know exactly what you are getting.
I'll trade you 2 of your non-ref 7970s for ONE of my pure reference 7970s
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Sorry, I am only looking for 7970s, not 7950s
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The new NVIDIA's are out, so sell me your operational GTX680. Post your price (shipped to Texas, USA) here or PM me if interested.
So you're probably looking for a cheap $200 right? |
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90C° is normal temp for 5970, I had few of these cards, they were running all the time and I even saw more than 95C°, if you set fan manually at 85% you should get the temps lower to 75-80 C° but you will reduce the life time of your fans.
Fans are about $15 to replace. 5970 themselves cannot be replaced if they burn up. They aren't made anymore. |
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You can use your graphics cards for ... Oh I don't know...
GAMES?!
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Seriously, does this thread have a point? If you aren't actually selling this, I may as well report this thread to a moderator so he can delete it or move it.
If you are selling this, make the OP more professional. Indicate your price, where you are shipping from, if you will ship internationally, what payment types you accept, etc.
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