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Not sure if it applies to Linux, but the Radeons have a power saving state that disables them if no screen is connected. You can start mining on one, and then plug your screen into the other and start a miner there as a temporary workaround.
Less temporary would be a dummy plug. A forum search will show you how to make one out of the DVI-VGA adapter and some resistors.
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One comment I've seen is that many of the large transactions are backups, consolidation of transfers and similar housekeeping done by Mt Gox and others that hold large sums in deposit. It's probably true in many cases, but... it would be boring of that was the only reason for the large transactions.  |
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Came to think of something else, as I've already brought up deviations in stats... I noticed the stats on bitcoinwatch go down to less than 3 blocks/hour before retarget, and as I remember it the network graph followed. That did also look weird, and did not seem to have much to do with the actual block generation rate.
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The stats are, as mentioned, off the mark after retarget. Probably because they are a mix of realtime data pulled from pool APIs combined with an estimate based on blocks generated over time – which is why "other" always seems to wait to power up a few thousand GPUs until right after the difficulty has gone up.
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No crashes, but Flash used to force my display GPU (5870) to a lower clock setting. Then something changed and now Flash only takes a few percent off my hashrate, and I'm not sure why... but I remember there was an update to Flash, and I also upgraded to Firefox 5 beta.
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Couldn't it somehow be possible to set up and track payout levels using the pool URL, by using different sub-domains for each level – with 05btc.mining.eligius.st, 1btc.mining.eligius.st and so on?
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I just happened to stick my beard into a fan while leaning over a caseless setup. No big damage, lost a few strands, but still...
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half the world is in winter right now.  90% of the world's population live on the northern hemisphere. And a lot of those living on the southern half think a $30 Nokia phone is an awesome piece of tech, even if they have to walk an hour to get in range of the nearest cell tower. |
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I think two subcategories would be a start. One for hardware and software and one for "business talk" like pools and such. I think the main category would be enough to hold the rest. And maybe we could add one more for those who want prove how Tycho and Slush will take over the world... |
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As usual everyone vastly over estimates needed power. Running a 4x5870 rig and a Kill-a-watt monitor I measured my rig to pull about 900Watts from the wall on a gold standard PSU, which means about 785Watts to the system.
So any quality 800 - 850Watt PSU will do you fine, just make sure you get something with either a single rail, or rails that can handle the amperage you draw for the GPUs.
I'm not overestimating, I'm making a recommendation. A little headroom gives extra protection from the downtime caused by having to do an RMA. And a good PSU can last a long time, so getting one that's has a couple hundred Watts extra might save you from buying another one if power requirements are different next year. |
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Duke Nukem Forever was just released. People who turned their gaming rigs into mining rigs are cashing out to buy new gaming hardware.
Or, maybe I should say that when it comes to new markets, I trust an analyst as much as I trust a deck of tarot cards. I feel there's simply too many unknowns when it comes to bitcoin. The other week people flocked to sample the delights of the silk road, next week it might be porn or poker or even something that's not in a gray area.
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No, don't get that PSU. Not unless you want to upload "House on fire, EPIC PC failure!!!" to Youtube. It has seriously weird specs.
I'd say get something that's in the 1000-1200W range, just to have a little margin. I like Corsair personally due to good experiences, but stuff like Antec, Seasonic have good rep, and there are others like be quiet!, Fractal Design, Cooler Master and more that are good if you pick the right one. Expect to spend around the equivalent of €200 and up to get something you can trust with all that hardware.
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I know 5870/50 start the thermal throttle at 100°C, but maybe they cut it 10 degrees lower as an extra precaution for the 5970?
I guess the question to ask is if you see a decrease in hashrate after you start them up.
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Is the second GPU active (connected to display/dummy plug)? Can you see either of them if you change master GPU in Afterburner?
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No, regular ATX. Maybe it's the perspective and the 120mm fans that makes the rest look smaller.
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 30°C outside, no idea how hot it's inside. New 5850 to go with the 5870. Didn't take long to figure out that it works better on top of that 10 year old case rather than inside. I need a better CPU cooler. Or at least a syringe of thermal compound so I can get that chunky Intel thing remounted properly once I have taken it off to see how many dust bunnies I can find between the fins... |
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If the trend continues difficulty will be about twice the current level in a month, if I have to guesstimate it.
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I think the Mobility 5870 has 800 stream processors, which makes it half the size of the desktop version. It's also 100-150MHz slower by default.
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