17 + 15 in stock (Sapphire + MSI). I want them gone!!!! all gone!!!! ASAP LOL  |
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what is up with these wild runs??? is it on this pool only? are others having same craziness?
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looking around for Accelero Xtreme 5970 but it seems to be unavailable.
are there other models that will work on a 5970.
Accelero has 3 different models (on newegg) but I can't see if they are compatible with 5970. One of them mentions therm. pads and heatsinks for VRMs. that sounds like something i might want to experiment with...
Anyone have any experience with Accelero or other aftermarket cooling?
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Question, is it really possible to run 850/300 @ stock voltage on these?
On the better units it's *possible* but you're right at the edge. If you can stay up for a week like that you have a really, really good one. My best card can run for a while at 840 but something will eventually trip it up and will need a reboot. I see... thanks for info. What do you think about 1149 V instead of stock? what kind of damage will it do and in how much time? or is it as always about keeping temps at reasonable levels? |
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A fellow miner had the same issue with his 5970s, I would look into replacing the thermal pads as they dry out over time. That should drop your VRMs 20C I would think. Reapply some thermal paste (Arctic MX-2 or 3 preferably), I did that on an old 5770 and it dropped GPU temp 5C which isn't much but for 24/7 mining every temp drop helps!
Could you elaborate on the thermal pads please? a link? a pic perhaps? Thanks! |
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Okay I did some testing. 1) Dropping the memory down (from 500 to 300) did not change much. Maybe 1C if that. Power draw on my current system (need to buy a bigger power supply than my current 750W to run both 5970s) with one 5970 from the wall is the same - 550W, measured from my Kill-O-Watt meter. Didn't help, but didn't hurt, so I'll keep it there. 2) Bumping the speed up to 900 was not a problem. Maybe a 1C increase. Nice and steady and a nice bump in returns. 3) I tried the Phoenix phatk mod, and to be honest, I got better results with OpenCL. Pix attached:   Thanks for the tips though, I am always open for ANY suggestions! Thanks!! I've tried 1149 v and have no problems running 930/300 900/300 900/300 920/300 setting on 2 cards in 1 system. temps are in low 80s with a closed case (but I'll play with airflow some more). Hashing rates are superb too!! better overall performance than on my previous 6990s. |
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I have 2 of them available. Used for about 2 months. In perfect shape/condition.
Anyone interested?
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So here is the question. I had a potential customer to my mining contracts ask about a pool hopper in which I said no. But, if I am renting a VPS, and he wants to run a pool hopper, should I allow it?
i don't see why not. |
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so, i have mixed experience so far with these cards... got 4. 3 seem to be working OK but not
it seems one of them will not change the stock setting from 725 clock on one of the GPUs (the second responds). msiab says 840/300 (what I set it to) but GPU-Z shows stock.
and hashing rate supports stock clock settings...
also, have strange artifacts on one of the cards... going to RMA it.
Question, is it really possible to run 850/300 @ stock voltage on these?
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ambient room temperature will help immensely. More than anything else you can do.
Agreed. And no case. Temps will go down significantly. So, are the people buying 500 dollars cards happy with their purchase when the trend for the BTC price seems to be pointing in only one direction? As in down... (And please do not mention solidcoins... I am going to guess that is not profitable as it was). Basically my point is.. are you doing this for fun and giggles or to make some money in a reasonable amount of time? Because the ROI on this card is getting out there. 4.5 months (143 days) lets say with a btc price of 8-8.50 and free electricity/time/cooling. If you have to pay for electricity is gets a lot worse. .08 kWh, lets say, which is cheap, stretches out the pay off date to 200 days.. so after a year of mining it with no downtime or screw ups you can make 176 bucks.. and that is still cutting off details like exchange fees, cooling, hardware failure, internet failure, etc.. I am not being a prick. I actually thought about buying a couple of these but the math is just not making sense. Too many assumptions have to be made. What say you? if you think you can mine for a profit, then you shouldn't mine. it's too early and all depends on whether bitcoin is adopted and becomes mainstream. instead, buy bitcoins and hold. maybe you make some money, maybe you won't mining is still pretty much for fun and something to do with all those spare parts. the reason i got these cards is to get pretty close to the hashing rate of 6990s and i'm selling back then 6990s to get back $230. that's the reason. |
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I gotta ask, what's the point of buying one of these for $729 when Newegg has the 5970 card listed at $499? They both top out right about the same place in terms of hash rate. Is the 6990 less of a power draw? Still, the $230 difference in price is pretty significant.
warranty, resale? i'm not thrilled with the $499 5970s... will post more on them in the other thread in a bit... |
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It may be a joke, but on deepbit, someone has a mining team: 'AMD-7995-Prototype' with a user 'Quad-Core-GPU' hashing at around 4GHashes.... Hmmmm....
This is why I'm not so sure everyone buying up those 5970's and 6990's the last few days at $500+ knew that these were (in theory) just right around the corner... around the corner is a long time wrt to mining... AND I bet the price will be insane, at least initially... |
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It may be a joke, but on deepbit, someone has a mining team: 'AMD-7995-Prototype' with a user 'Quad-Core-GPU' hashing at around 4GHashes.... Hmmmm....
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what would the estimated hash rate level be?
I thought the general rule of thumb is (stream processors/4) = hash rate in MH/s, more or less. So... 6000+/4 = 1500 mhashes for double GPU card, so 750 Mhase per GPU? this seems too good to be true... can someone confirm? |
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So what's this I hear about the HD 7XXX series having at least double the number of stream processors as the 5XXX/6XXX series? Anybody hear anything about this?
http://www.bit-tech.net/news/hardware/2011/04/15/radeon-hd-7000-due-june-or-july/1Though its older news, I don't know if the tech could have changed *that much* since then. They report doubling of the stream processors is a 'conservative estimate'. So thats ~1600 for a midlevel single-gpu card, and 6000+ for a high end double-gpu card. I think. what would the estimated hash rate level be? |
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received mine just now... packaging is for shit, that's for sure!
but nothing was terribly bent... only one outta 4 had the top lip slightly bent, pliers to the rescue...
next, installation and fire them up.
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Just got mine set up. I'm getting 377-378 Mhash per core using guiminer 2011-07-01 with poclbm on Windows7 64bit, flags -v -w128. I could not get it to OC past 850. In an open case my temps are an off the hook 90c+. I also could not get the memory to down clock that far without crashing. How did you do it? I tried Rivatuner and MSI Afterburner.
Trixx tends to be more reliable. I have no clue why but I have had problems going below 500 mhz and with trixx that problem does not exists. Yeah I used Trixx to set the clocks and voltage. I think I can probably go higher than 910MHz but I'm scared heh there's no reason to be scared. just watch them temps and keep them in a reasonable range. if it runs stable, you're good. Keep in mind that you might want to consider running the "cooler" gpu at a higher clock rate than the second one rather than running both at same clock speeds. |
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