yes! was able to withdraw out 110 of my LTC just now
well aren't you lucky |
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i have about 200LTC... and it is all stuck. not sure how much was taken.
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I am getting error on some machines
"'The requested name is valid, but no data of the requested type was found"
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.... But funny enough the rig with 4 cards is the more stable rig for some reason. I'm curious if that will change when I add another card to "balance" things out. Though technically it shouldn't make a difference, experience has definitely taught me otherwise!.....
Be careful MKEGuy ! I'm sure there's a good reason why it's not viable for a long term solution. Can the motherboard keep powering 4 cards like that without, eventually, burning out somewhere ? Taco we need your wisdom  Yes... be careful... I have burnt 2 motherboards doing something like that back in bitcoin days. for 3x GPU, it might be fine, but for 4x... you are really upping your chance to burn the mobo. What 7950 cards do you have on there? It seems that diff cards pull diff watts from the pci-e slot. I've had problem getting 2x gigabyte to work together, but no issues with 2x HIS, and this is on the same mobo. |
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Cool thread, thank you. I received 4x 7950s and four risers on Friday and the rest of the hardware won’t get delivered until tomorrow, so I used the weekend to raid my old hardware closet and put a miner together from scrap hardware. 4x Sapphire 7950 leftovers: Core i5 750 Asus P7P55D Premium (only 3 cards worked initially, had to do the PCI presence short on PCI-E slots 1+2 and cut the 16x extender on slot 1 down to 4x) 8GB RAM old SATA 2.5" laptop HDD PSU: Tagan 780W (2 cards + motherboard) and Enermax 570W Modu 87 (2 cards) and put everything in a square laundry basket somewhat similar to yours. The PSUs fit in there as well so the whole rig is extremely portable for what it is. The graphic cards kind of slot into the holes of the crate and lock in place unless you tilt them, so it is all quite solid even without screws. I’d say this rig is more portable than all of my desktop PCs I’ve had so far.    I put the machine in a tiny room heated to 32°C with an electric space heater over night to check if it would be stable at worst case summer temperatures and all GPUs hover around 75-76°C at 65% fanspeed. It’s super cool and quiet at normal temperatures. The laundry basket gives me around 2400 kH at 925/1250 1.000v (scrypt) or 2250 mH at 1150/1000 1.150v (SHA256). Now I can send the ordered Ivy Bridge Celeron + Z77A-G43 + RAM + PSU back for faster ROI (if I ever get to that point, which I doubt... but mainly did it for the fun of playing with hardware and funded it entirely by cashing out a part of my BTC). Do you use powered risers? Or do those cards come with 8pin power connector? |
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why do you need 8 gb of ram? cgminer barely uses 50 MB when mining (scrypt) on 2 cards.
When you set thread concurrencies to >8192 it uses tons of ram (usually about 1.5 GB per 7950) unless that has been fixed in 2.11.4 I'm using thread-concurrency 6500 on 2 cards, and it's only 50 mb for both. So unless memory usage grows exponentially with thread-concurrency, the memory usage shouldn't be that high. The memory usage is that high. I have 2x 7970 and 1x 7950 all in one machine with 4GB system ram. If I disable the pagefile, cgminer would say it ran out of memory. So yes, 1.5GB for each 7970 sounds right to me when you use concurrency of say 22400. |
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Installed Novacoin 0.3.5.
Tried to start the program, and I got the Visual C++ Runtime Library error.
"expression: pindex-> pprev || pindex -> GetBlockHash() == hashGenesisBlock"
Anyone have the same issue?
Reason I installed this 0.3.5 is because the old client says to upgrade to this.
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I have over 400BTC with hashking.
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It sounds like another card would be a better choice.
I've heard the following cards are unlocked:
MSI 7950
Gigabyte 7950
Can anyone confirm these are unlocked and run cooler and more reliably than the MSI?
Any other brands worth considering, such as Sapphire?
Thanks,
Kind of true for Gigabyte 7950. Their voltage is unlocked in the sense that you can only INCREASE it. The default is 1.25v, which is already overvolted. |
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Got an error.
Order ID 35198f84-6f04-45b3-8fe8-f8dba6473ddf
Quote ID a0a4aba3-f60d-4acd-8651-1fb4dc8e8c1c
Event ID 65919c30-30cd-4887-919c-56da4ddf40c3
Please process it.
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bitinstant no longer support funds going to btc-e??
it is not in their menu options anymore, but btc-e is showing bitinstant have a 50k reserve balance.
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Just got an email from MtGox:
You are currently making use of a system which will be deprecated on Wed 10 Apr 2013 12:00:00 AM GMT:
Generation of USD and CAD redeemable codes will not be possible due to legal issues
Please note that after this date, using this system won't be possible anymore and will instead lead to an error.
Thank you for your attention.
System Staff
Tibanne Co. Ltd.
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PM'd on the 7970 as well.
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considering the development skill sets are COMPLETELY different (as in a programmer isn't typically a good business negotiator/strategist).. I wouldnt imagine TO much overlap. this |
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Well I am at 81 GHs, and no more cards for me, not because I am afraid, but because they will have to build a new nuclear power plant just for me . And than it most likely wont be free power.... why do you get free power? |
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Would be nice to get some news, yes.
The decision to sell all GPUs or keep them for HPC work @ CoinLab isn't far away.
this.... this.... I suspect people would start selling GPUs once 2nd batch of Avalon ships. Although Coinlab also advertises to gamers, but I think GPUs from the hashing world far out number the gamers. |
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How much power is SATA cable rated for?
I have 5830's that's undervolted, and was thinking of using SATA to PCI-E power cables.
Don't!!!It can handle no more than 5 amps so no more than 50-60W. And the connector is the problem, not the cable, the connecting surface is too small. been running 5830s on sata->pcie power connectors for over a year. no problems. My 7950s (well some of them), are heavily undervolted, and they run fine on those adapters, but... I woudnt try to run a 5 series on them, they are power hungry bastards Undervolted 5830 pulls about 120w? If it is 50-60w per SATA connector, then I should be fine. Use one original PCI-E, then one SATA to PCI-E on the 5830. Also, I can always put the SATA connector on cards that run off of PCI-Ex16 slots. Since it is NOT the cable that's the issue, but more the connector, I should be fine hooking up 2x SATA to PCI-E on the same line that came off the power supply. You know, each cable have like 3-4 SATA connections. |
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NEVER use a SATA to PCIe connector - don't know who the hell thought of that idea but that is just asking for a problem since the SATA connectors were never designed to deliver that much power.
How much power is SATA cable rated for? I have 5830's that's undervolted, and was thinking of using SATA to PCI-E power cables. |
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think i'll be switching to litecoin... this HPC client has been delayed and delayed.
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