1) Yes. I wonder if some kind of motor oil would work too. It should be way cheaper than vaseline oil. 2) ? 3) Maybe not. There are tolerances. I use to run my diesel car on a mix of diesel and vegoil. I shouldn't and could't, according the instruction manual, but I already made 50,000 Km on it. Moreover, oil viscosity is a function of its temperature (the higher the temp, the less its viscosity). 4) I would leave the fans in. I've seen that they work in the oil, even if at much slower speed. Then there is the pump. 5) I think that you refer to distilled water (where microscopic amounts of contaminants make it counductive). I never heard of this problem about oil cooling.
That is a solution but it isn't as cheap or easy as you think.
1) You need to use mineral oil unless you want a maintenance nightmare and gallons of mineral oil isn't cheap.
2) Mineral oil has lower thermal conductivity than water so you will need a lot of it.
3) Mineral oil has higher viscoscity so you will need a powerful pump and that isn't cheap
4) You will need to ensure you design proper baffles so you get even circulation otherwise hotspots will develop
5) You will need to filter the oil. Contaminants will increase electrical conductivity and without maintenance will eventually cause a short.
If you have a free aquarium and car radiator you can reduce the cost but getting car radiator clean enough to avoid contaminating your oil isn't that easy. High grade mineral oil runs ~$15 a gallon and you are going to need at least 10 gallons more likely 20 gallons (remember not just the aquarium but the radiator and cooling lines also).
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They are 3x watercooled 5970s (6 total GPU).
Sweet!  It would not be way more cheaper, easy and effective a "full immersion" oil cooling system? I am tempted to try a ghetto one if I find an almost free aquarium and car radiator. Re: "925mhz at stock voltage, stable, is awesome." Awesomely low? My 5870 mines at 970/330 at stock voltage on air cooling. |
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The only way I found to fix this problem is to revert back to cataCLYSM 11.5. With them javaw takes only 2-3% of cpu while mining. So I propose to launch a petition to ATI to fix this bug (maybe they see it as a "feature"). On another miner I am still keeping cataCLYSM 11.9 keeping the cpu underclocked by CrystalCPUID on XP, since I think to add a second card and I know that old drivers need a dummy plug that I don't have and don't want.
Setting it to low priority isn't going to help the fact that you're burning tons of CPU heat with a runaway CPU process performing no work... great way to screw over your power bill is letting your CPU run full speed when the GPU is doing all the work. At the very least, set a power profile with a maximum CPU state of 50% in Windows 7 power options just for mining. But the proper fix is to untangle the cause of the CPU usage. ... [/quote] |
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Or, what are the chances that we could mine forever for nothing at this rate?
Thus forever is a somewhat useless timeframe. With 40GH/s & current difficulty the odds of not finding a block in given amount of time: 1 week - 1 in 28 1 month - 1,606,584 1 year - 1 in 3,200,056,361,226,270,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 (rounded) etc Thanks, I was sort of joking. But since we are already beyond the 1in28 ballpark one should not discard worse scenarios out of hand. |
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My previous pool has a monthly giveaway contest, where miners can win (ATI cards) even according to the new subscribers under their link: http://www.bitcoinpool.com/forum/viewtopic.php?f=1&t=272 I dunno how they finance this, maybe adsense on your site could help (like btcguild has). Just trying to help with my 2 btcents... |
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I think a dynamic signature graphic would be more effective. i.e. "I am earning a 5% bonus on Bitminer @ 2186 MH/s and you can too!"  Maybe you could mix the signature and the promotion in an affiliation system, where for example if the apportion from new subscribers under an affiliate is, let's say >10 GHs per week, your affiliate gains 1 BTC. (So your pool would be spammed to the frontiers of the Internets). BTW: could the CDF in the statistics be >100%??? Or, what are the chances that we could mine forever for nothing at this rate? |
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Unless the pool's hashrate goes up substantially, I fear that mining here is going to be a losing proposition like buying lotto tickets.
"Long term" is late, when you mine for a week for nuthin.
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Yes, we are almost in the 5th day without finding a tiny block. Please come and help us to end this round of doom (before we die of hunger).
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I started to have exactly the same problem: javaw sucking 30-40% of my cpu (AMD64 X2@3Ghz) and puter getting hogged and unresponsive (even lowering the priority of javaw). So now I am mining with Phoenix, which sucks 40% of my cpu too, and is slower than the bitminter client (403Mhs vs 420 from a 5870) but at least keeping it at low priority my puter remains snappy. Anyone knows if it is normal a so high cpu load when mining, or there is some fix I could try? I am now using official drivers 11.9 on XP32. Well, sad to say I've had to go back to Phoenix on my miner (freshly outfitted with a 1.0GHz Pentium-DC - originally 2.7GHz)... the CPU usage of javaw.exe (BitMinter client) is just too high to run. It starts off blazing up the GH/s dial with ~3-5% usage, then a couple seconds later jumps to 8%... then 14%... then 25% (which is 50% of one core/thread), and it stays there indefinitely. The GPU break period value seems to have no effect on anything anymore (responsiveness, CPU, etc). It also seems to be running slower than before by 2-5 Mhash/sec. For the time being, I'm achieving higher Mhash/sec (about 213 as usual) with Phoenix with the modded phatk kernel from here: https://bitcointalk.org/index.php?topic=25860.0And the line: C:\Users\Falcon\Desktop\phoenix-orig\phoenix.exe -u http://FalconFour_Miner:password@mint.bitminter.com:8332/ -v -q 2 -k phatkmod VECTORS2 DEVICE=0 AGGRESSION=9 WORKSIZE=128 BFI_INT=true FASTLOOP=false (hey, if you want to mine to my credit, go right ahead  ) 213 Mhash/sec and 0% CPU usage on my 6770 with Catalyst 11.9 Beta |
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You know what happens to us in the long run, don't you? In the long run, the average will not be different from anyone else.
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OK, you convinced me. I'll keep testing Bitminter a few days more, even if I suspect that with a so low Hashrate it tends to be very unlucky most of the time (BTW: how about a measure of the pool's luck in the statistics?). On the other hand, I love the app and the interface.
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My puters are up about 12-16 hours per day. So maybe 53 hours every 80. In any case I would be underpaid in comparison to any other pool with regular proportional payment.
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But you made equally pointless to mine with your pool for part-time miners like me :-( Good bye ... Whenever new coins are minted, they are divided between contributing members proportionally to the total score each member has within the last 10 completed shifts. You can see the completed shifts at https://bitminter.com/shifts. The purpose of this switch is to make pool hopping pointless, thereby stabilizing payouts for 24/7 miners. |
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Everything that is not forbidden is allowed!
everything IS forbidden. What do you think we have zillions of laws for? |
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+1 I would actually want to set it lower even, but it wont let me set anything lower than 10. Can you set 10 as default, and allow lower values?
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Anyone can explain why when I mine on BTCGuild with my 5870@970/300 + 5750@890/300 Phoenix says that my hash rate is 420Mhs +175Mhs = 595Mhs, while my account page on BTCGuild says that I am around 490-500Mhs? Am I being scammed? Thanx
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(And is probably going to drop a lot to be consistent with current price and difficulty):  (I just went on strike since price does not seem to have a bottom. Wake me up when it is back above 5$ or difficulty is halved) |
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I'm riding the bitcopalypse all the way down to zero with my investments in HW and BTC near the top. Winning or nuthin.  BTW: What comes after "resignation" in the bubble cycle? |
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