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Every tutorial I read that mentions voltage sounds like you are giving your GPU card a death sentence and to only be done by "technically experienced individuals"... blah blah blah... you will break your card. I assume this is all legal fodder. :/
So I have increased the voltage on the highest voltage range setting approximately +15% and this has allowed me to reach up to 1025 mhz on a card that typically tops out at 950 mhz with stock voltages.
The temperature is at approximately 75 degrees Celsius when I leave the stock fan settings running - or 70 Celsius when I have the fans set to 95%.
Am I doing any hard to my video card? Do I have anything to worry about? Will this action decrease it's live by multiple times?
What is the danger of setting my voltage too high? Is it simply that the card will get too hot eventually and "melt down" so to speak? If so then I should be safe at 75 degrees Celsius correct?
Can I increase the voltage from +15% to +25% so long as my temperatures stay below 85 degrees Celsius?
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I am...
I have convinced my brother and some of his friends...
My friend and some of his brothers...
My parents...
My girlfriend...
Anybody I know, care about, and can use a computer I have mentioned bitcoins to - because I don't want to be some billionaire enjoying his wealth alone!!!
If you can convince any of your friends to simply buy $50 USD worth of BTC... you will be doing yourself, themselves, and the entire world a HUGE favor!
Get going!!
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I am a night hawk... and it seems to be that the surges in price occur during the western world's downtime... for example.. I have watched mtgox jump from 14 to 17 dollars between 1 and 4 am EST...
Could it be that we are getting a lot of coverage/press/support in the eastern world?
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So I have the over/under clocking down pat...
I can get a 5870 running at 950core/300mem up to ~420Mhash stable/running for days on a linux mining rig.
I can get the card up to 1000core/300mem (and push ~450Mhash) but only for a few minutes at most before the entire machine freezes up.
I assume that the cards need more power to function perhaps? The temperatures are just fine... In the 75Celcius range since it is a cool room.
Any idea how I can keep the cards at 1000core/300mem for an extended period of time? It does not make sense to me that they could sustain it for a few minutes.. with a decent temperature... but not for longer.
Any advice would be greatly appreciated!
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Check it out if you are looking for a little extra hashing power! http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&item=250830704183No reserve. Free ground shipping within north america. (Option to add air shipping for $20). Auction ends in less than 72 hours. Hardly used! (I am selling because electrical consumption is not an issue for me, and this card is valued so high generally for it's great Mhash/watt ratio.) Please ask any questions you have in this thread. |
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I warned you, whoever you are... (Can't find my original post but I have talked about this before...) HN is not a group you want to piss off. They are highly skilled, tightly knit, technical bunch that could do wonders for Bitcoin. Stop posting all of this drib-drab about "what is bitcoin" and "my stupid simple bitcoin writeup". They do not fucking care.Check out this story that is getting mad upvotes right now: http://news.ycombinator.com/item?id=2613271And check out all of the hatred seen over here: http://news.ycombinator.com/item?id=2612688People go to HN to read about HACKER NEWS. Which bitcoin/economy/monetary related information is not. Whenever we come up with our own open sourced ASIC chip project or we find a collision in the SHA-256 algo or something... by all means post it to HN. Until then.... Smarten up, you are doing none of us any favors. There is a wonderfully active sub-reddit that is perfect for these kinds of posts. |
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So I have been troubleshooting this problem with my friend over the phone for the last hour... He has 4*5830s squeezed onto an MSI 790fx motherboard and fanned apart. Average temps do not go above 80 degrees celcius so he is good there. The other day we had a scorcher... it hit ~41 celcius almost and one of his rigs turned off/froze/stopped working/whatever. Now whenever he tries to start a miner through linuxcoin v0.2a (poclbm or phoenix)... his mining window "flashes open, and then immediately shuts". I have only noticed such behaviour when I forgot to enter a kernel for phoenix, but he assured me that he was typing everything in correctly. Anybody have any ideas as to what's up before I waste a ton of gas?! Notes: - he can see all of his card temps through aticonfig (and set all of their clocks) - he is using sapphire 5830s - he is running linuxcoin v0.2a - he is freaking out  |
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Prepare to have your mind blown. I know mine is.
I purchased a bunch of pcie 1x extension cables through ebay. Modded them myself, and shorted connections A1+B17 with some solid wiring.
I occasionally combine two cables together to double their lengths. This works pretty well in general.
I have been wracking my brain for days trying to figure out why certain combos of cards didn't work in my MSI 890FXA-GD70 mobo.
It turns out that a specific cable... when used as a "doubling" cable on card number 0/1 (first card)... will show MOST of the booting sequence in linuxcoin v0.2a...
I mean I can see the post screen, the boot sequence of black and white screen/text... and then when loading the desktop everything hangs...
If I change that one cable out for another, the desktop loads fine.
If I use that cable in the 2nd - Nth card, the desktop loads fine.
Why on earth would an extension cable stop only the desktop from booting when used in card slot number 1?
Answer me this and you get 1 BTC.
Extra info:
- I have tried xfx, diamond and sapphire cards with the same cable... same result.
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Honestly guys... how greedy can you be?! So a few people have a massive hoard of bitcoins, so what? Unless your name is Carlos Slim, there will always be somebody "richer" than you on this planet. If Bitcoins actually take off... "Satoshi" and all of the early adopters deserve to be billionaires, too. Much more so than Carlos Slim "deserves" to be a billionaire imho... (by monopolizing telephone lines and then charging poor civilians out the ass for it, selling cigarettes by the trillions, etc, etc...) A new block chain would accomplish little at this point anyways in terms of distributing the wealth... There are already solo miners out there with 50Ghps+ rooms ready to rape a new difficulty level and quickly gain 10k+ "new bitcoins" in a few short days. Full disclosure: I only found out about "Bitcoin" ~3 months ago. The second I discovered it I could not stop reading/thinking/gaining-interest in the topic. I have acquired ~100 BTC in that time mainly by getting lucky once finding a block and participating in a few different pools thereafter. |
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I don't know why I have the option to create so many individial "workers/miners" for starters...
When creating an individual worker for a mining pool (like deepbit.net or btcmine.com) I am asked to create a separate password for that miner (so that I can submit shares using my username and password presumably?)
Why would I bother making a difficult to guess password for that miner in particular? Don't I want other people trying to crack my password and mine bitcoins for me through the pool if they so choose?
Why is there a password at all basically is my question?
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I popped a new cpu into the last slot on my motherboard.
It broke ubuntu at first... but I boot into "rescue mode" and entered the command aticonfig --adapter=all --initial twice and it found all of the video cards (there were 5 now listed, instead of 4).
After rebooting I can only mine with the original 4 cards.
aticonfig can see the 5th card, but poclbm can't.
Any suggestions?
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This doesn't make any sense to me from an engineering perspective...
I have a PSU that is rated for 850W gold+, it is non modular and only has 4 pcie 6+2 pin power cables...
So WHY do I have to purchase a 6 pin to 6+2 pin dual pcie power cable splitter only to recombine the power inside of the GPU???
I mean really... one cable transfers all of the power from the psu to the video card... I split it into two cables (cost of ~$10 USD)... and then assumably the video card recombines that power and uses it for whatever it pleases...
Why don't all video cards just have one 6 pin power plug?
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So I got a few friends of mine involved in bitcoin mining... convinced them to buy a few 5830 GPUs since we can get them for about $110 USD each up here in Canada.
I noticed that when installing ubuntu with these 5830s at any clock setting (stock or overclocked) the mouse didn't show up. With or without fglrx drivers... no mouse... hrmmm???
I have managed to set the memory clock to 300 MHz and the GPU core to 975 MHz with no problems and have received about 240 MHash/sec off of each card. I was hoping for at least 250 though.. :S
Any suggestions to up the speed?
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I left a rig of 6 video cards running poclbm on ubuntu 11.04 overnight and everything went fine...
I left the same rig running all day today and found that my mouse was "jittering" in the lower right side of the desktop, the desktop was still visible, presumably active... but my mouse was frozen to a section of the screen and the miner terminals seem to have stopped working (not updating anymore).
Any solutions for this?
Does anybody even know what's causing it?
Could it be their temperatures? Some cards are approaching 80-85 celcius when mining... perhaps just heat adding up near the rig over time?
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The title says it all.
I don't want to have to manually tweak my rigs every time I power them on.
There must be a simple way to open up multiple terminal screens, change all gpu clocks, and start mining - but I haven't figured it out!
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I installed ubuntu 11.04 to a USB hard drive with multiple GPUs.
The installation went great. The os booted up, but there were some obvious gui/visual problems with the memory clock being so low on all of the cards (150mhz minimum).
I took out the first GPU, flashed it back to stock BIOS, popped it back into the rig and upon booting I was met with a black screen filled with lots of errors about "radeon"... "ati"... things like that... So I can only assume that changing the BIOS on the card caused the problem.
Any reason for this? How does LinuxCoin boot up no matter what/how many GPUs are installed?
I am currently re-installing Ubuntu onto the flash drive with a stock BIOS for card #1 and underclocked memory BIOSes for all the rest.
I would like to be able to seamlessly change video cards however as I upgrade my rig.
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I was playing around with the Radeon Bios Editor in windows. (I mine on linux, but my cards had a hard limit of 900mhz memory clock so I used RBE in windows to lower that value.) I lowered the minimum memory clock to 150Mhz on all of the cards, noticed an increased hashrate without any noticeable lag on the desktop, got greedy, booted into windows again and lowered the minimum memory clock to 75Mhz. After that... I can start booting any operating system... but JUST before it begins to load the desktop (on windows and linux) the screen freezes and I am unable to even reboot the computer by pressing and holding the power button for 5+ seconds. I have to manually switch off the power supply. I have tried to use an un-modified card as card number one, and 3 over/underclocked cards as the second, third and fourth cards but I receive the same result. I do have a backup of all the GPU BIOSes (thank goodness!). Any way to flash the GPU BIOSes to my backups without booting into an OS? Any help would be appreciated. Is this all I need?? http://www.techpowerup.com/forums/showthread.php?t=57750Edit: It seems backing up the bios wasn't necessary, gigabyte keeps a record of them on their website! http://www.gigabyte.com/products/product-page.aspx?pid=3355&dl=1#bios |
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I want to setup a small personal mining pool by the end of today.
Anybody care to post some quick hacks of instructions for pushpool or similar software?
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