And... explain to me how turning away free workers makes "every block count"?
Perhaps their network connection is limited. It doesn't take much bandwidth to maintain a client. I think I saw somewhere tyco said something like 10 kb/s per client. The issue is that cpu miners are fractions slower than gpu's and if they are requesting work at the same rate then they are eating up valid getworks and never processing through them all. |
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They believe that there is a reason to worry about efficiency and that is what their site is based on. Since efficiency is their goal and cpu miners are horribly inefficient they are within their rights to not want or allow them there.
I do agree that it's within their right to ban whoever they want. But, nevertheless, it seems rather silly on their part to ban CPU miners under the cloak of "efficiency" when (other than the # of getwork requests) 100 CPU miners at 800 kilohash/sec is roughly identical to 1 GPU miner at 80 megahash/sec. Just sounds like he's turning down free money to me. But, to each their own. Before I bought video cards I put my CPU on there and watched it and it was terrible. It was grabbing up a lot of getworks that it was never going to process through. After about a half hour I just shut it down because it was ugly. 80 MH sounds pretty small compared to the size of the smallest pools and easily done with a low end graphics card. If that was coming from 1 person that wanted to try it and could tune the efficiency to meet the requirements then it might be worth it to them. Trying to manage 100 clients at 800 kH/s would be not be a advantageous unless there was a miner that managed cpu efficiency for them like the new generation of gpu miners are doing. |
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Since it is just a motherboard tray with the same spacing as a normal ATX case or motherboard tray it would be the same as trying to us extenders in a standard case. I don't think it would make it any easier other than the fact that it has 10 slots and would allow you to shift the cards down a few slots but if you have a 7 slot board eventually you are going to have to deal with a card on a connector and mounting in a slot where a physical slot on the motherboard exists. If you leaned the card to one side or the other slightly so that the connector sat between 2 physical slot it might work, but I don't know how much the extenders allow for that, I haven't used any extenders yet. |
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well their efficiency bs is starting to take toll
Remind me again why lots of other miners have adopted the same idea and tried to increase efficiency if it's BS? The B.S. part is his attitude and how he bans just about any CPU miner. Statistically speaking there is no good reason for worrying about "efficiency". They believe that there is a reason to worry about efficiency and that is what their site is based on. Since efficiency is their goal and cpu miners are horribly inefficient they are within their rights to not want or allow them there. If you used a client that let you set the askrate so that it fulfilled the efficiency requirement they would probably allow it to run on their site. |
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I just looked at mine and the site was reporting 2/3 of my total speed. I looked at my client output and there were 4 long polling updates within 30 seconds of each other. So the miner dumps it's queue each time and grabs new data, processes 1 or 2 getworks then gets told to dump them again. So it processed less getworks during that time than average and showed a slower speed on the website.
Wouldn't you say that's kind of a huge efficiency hit (1/3)? I consistently see values that are 1/4 less than what my local client shows. Isn't the value on the website an average (over 5 min)? That's speed, not efficiency. If you are seeing values that low try restarting your client(s). I'm seeing an unusually high "queue empty, miner idle" messages on my phoenix clients, could be bitcoinpool getting hit really hard with ddos today or something going on in the system. The average is supposed to be 5 minutes, yes. I saw the same swings both ways on all sites that I have been on, I have been on 3 different sites in the past 2 months. |
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Im sending back another Mobo to new egg today. This was an open box that just died. My hash rates were halfed on one of my cards so I rebooted and nothing.
I am in need of a good board that wont break the bank. Any suggestions would be wonderful. Combo of pcie 16x and 1x would be just fine as long as all slots are accessible.
Thank you!
What was the model you're sending back? You said 'another', it is the second time you sent back the same model? |
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There can be more valid responses for one getwork request. Okay I see that now. That makes sense. Any insight on the hashrate issue? I ran a log for several minutes and it shows an average of 320 Mh/s. The website shows something around 250 Mh/s. I can't be the only one to notice this. Every site does that. The site is not in direct contact with the mining client as to how fast it is processing, so it uses math to try to make a guess on depending how fast you submit results. If you submit a few valid responses at a time it looks like you are submitting more than the average speed of the client so the math says you're faster than you are. I just looked at mine and the site was reporting 2/3 of my total speed. I looked at my client output and there were 4 long polling updates within 30 seconds of each other. So the miner dumps it's queue each time and grabs new data, processes 1 or 2 getworks then gets told to dump them again. So it processed less getworks during that time than average and showed a slower speed on the website. |
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Also, poclbm-mod shows my hashrate as at least 300 Mh/s every time I look, yet my account page varies wildly and is regularly as low as 200 Mh/s. What is the explanation for this?
They have abandoned poclbm-mod in favor of phoenix. |
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I just picked up a Radeon 5850 for $149 at TigerDirect on Tuesday and out of the box with no overclocking I'm getting 270Mhash/s with "-v -w -128 -f 60" The computer is still perfectly useable and there's only slight screen slowness. I'd say the 5850 is the best hash/$ if you're on a budget.
If you can find them for the price, they are definitely the best. I decided a little too late to get one of the recert visionteks unfortunately. I managed to pick up a nicely used one local for $150 today though. Pop it in my system, load my preferred BIOS and it's getting 360 Mh/s ... 2.4Mh:$1 .. sweet! |
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This will be a mining-only rig.
Would like to be in the 750M - 1 Ghash range
A budget helps  My friend and I put together a 1.2 GHps rig for about $1100. No case, no hdd/optical. <$1 per MHash is very doable. 5850s, AMD quad, free RAM, and MSI 890FX board with 1 kW PSU. Should work well. Building tonight =) Lol, I put together a rig for <$500 that will put out almost 800Mhash/s. Shop around is all I can say. Check lots of forums and websites for good deals. Do your homework on whatever card you buy? Some 5850's aren't as easily overclocked as others. Reference cards are generally easier to overclock than some others. I get 360 Mh/s out of mine. Someone managed to eek out 390 from a sapphire toxic(?) I think but it was really high voltage to accomplish it. Specs? Any used parts in the build? My 2x 5850 rig will end up costing me: $260 (Saphire 5850's) $50 (Antec 900) $0 (RAM already have) $70 (750W Thermaltake Tough power 775W) $45 Foxconn AMD motherboard with Dual PCI-E $38 Sempron 140 $0 (laptop SATA drive) So yea, less than $500 for hopefully ~700Mhash overclocked. |
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I've been using this pool for a day and just received my first payout. So I thought I'd post my experience.
1) So far the payout seems to be in line with my expectations.
It's nice when the sub-1hr blocks hit, especially 2 in a row. There is still the occasional 16-24 hour block so it still evens out. 3) I don't really get the controversy over the efficiency issue. This is an entirely reasonable thing for a pool to encourage.
With phoenix becoming really popular and managing it's own work queue and other miners improving other pools are going to see some efficiency gains whether they agree with the argument or not. 4) I am concerned about the pool hopping issue. But the proposed solution seems reasonable and effective.
From what I have seen so far pool speed stays pretty consistent until the 6 hour mark then a lot of people hop out. Since there's not a graph of speed/round time or json data for the pool you can't be sure, but I end up checking it a lot and don't see a lot of big changes in within average round times. 5) The website isn't great. It's impossible to navigate. Why are the stats on the front page? It took me almost a day to figure out what the statistics meant. Estimated payouts are wildly inaccurate. Since I joined at the end of a block, for the first few hours I was convinced I had hit some kind of Bitcoin jackpot. Alas, that was not the case.
They wanted to be as open as possible with the data, so it's right out front. Estimated payouts are (your submitted shares/total submitted shares), they vary a lot at the beginning of the round. I don't see mine vary that much after the round has been going for a while. 6) Not encrypting passwords is dumb and will likely end up being a dealbreaker for my continued use.
This was fixed over a week (or two) ago now. I never had a problem with my account. I changed the password once after the compromise, and change it occasionally for good measure, and check to make sure my address hasn't changed occasionally also. It's really not that big of a deal for me. Happy Mining |
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I just added a second 5830 to my rig.
The temp of the 2nd card is in the 75-85 range depending on the fan speed and my overclock.
The 1st card is in the 55-65 range.
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What temperatures are your hottest cards running?
How long have you run them that way 24/7?
I tend to think that in the 80's is getting too hot, what do you guys think?
80 is the uncomfortable point and I try to keep mine around 70 as much as possible. First, my case doesn't support the airflow that it needs so I leave the panel off. If you have to keep them side by side, space them out as much as possible, I left the screws off and stuck a molex (4 pin power connector) between them to open the spacing. I put a 120 mm case fan over the cards to push air from outside the case down between the cards so the fans are getting more fresh air as their input. |
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5850 900/300
Went from 361 to 355 VECTORS AGGRESSION=12 BFI_INT
This is probably because it's optimized for SDK 2.4. If you are using the Linux + SDK 2.1 setup in your sig then it's probably better to stick with the poclbm kernel. The advantage of phatk is that it produces similar speed to poclbm + SDK 2.1 with SDK 2.4. Ah, yeah, I did read that, it failed to register. (I just woke up) |
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5850 900/300
Went from 361 to 355 VECTORS AGGRESSION=12 BFI_INT
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I can't find the username veritus101 on a Google search, nor the email you listed anywhere. I'm assuming they were throwaway accounts. (FBI is of course too vague to search.)
Could a moderator tell us if the IP addresses on the accounts match?
Search Veritus 101 (with a space). It only comes us wit bitcoin forum stuff and profile. |
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If you got taken then so did I. 15BTC I hope not though. Veritus 101 responded to this post http://bitcointalk.org/index.php?topic=7723.0. I replied 5/9 (twice because I didn't know messaging didn't keep a copy in outgoing by default) and haven't received any communication since. |
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So in about seven hours the difficulty will change. Where do you see it going next? It is going to be around 156000 today.
My guest.... 170000
Hmm seems I'll have to put off some mining hardware expansion I've been planning. Let's see though if price will go up again  I think the only reason the price is this high is because some experienced investors saw a pretty much virgin market that they could put a decent enough amount of cash into to be able to game it and make a quick profit. Luckily it has held the levels that it got up to and even creeped up a bit further, but there's not nearly the movement in the last week that there was in the previous 2 with some really wild swings. Yeah, it was crazy there for a couple weeks, and there was a lot of speculation based on that movement that the price would reach $100 and even $1000 by the end of the year, which now seems pretty unreasonable. If I had to guess, I'd say we'll be lucky to reach $10 by the end of the year. I'm not watching it as close since I got out of the market, but it looks like it has only gone up about 0.30 BTC in the last week. In the previous 3 weeks it went from sub-$1 to $3.50 .. and has been trying this whole week to get to $4 and doesn't look much like it topped $3.75-3.80. I thought it would take me 90-100 days to break even on my hardware investment. Since the value shot up my hardware paid for itself in 3 weeks and I even reinvested some to add another card. Until 1 broke tonight  |
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So in about seven hours the difficulty will change. Where do you see it going next? It is going to be around 156000 today.
My guest.... 170000
Hmm seems I'll have to put off some mining hardware expansion I've been planning. Let's see though if price will go up again I think the only reason the price is this high is because some experienced investors saw a pretty much virgin market that they could put a decent enough amount of cash into to be able to game it and make a quick profit. Luckily it has held the levels that it got up to and even creeped up a bit further, but there's not nearly the movement in the last week that there was in the previous 2 with some really wild swings. |
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I'm looking for a stock 5850 reference cooler. Anyone have a dead reference 5850 card with a working fan/cooler that would be willing to sell me? I'm in USA. I can give up to 15 BTC depending on how fast I can get it.
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