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Dorking around with solo mining on a spare rig and it never accepts any hashes even though it is running full tilt.  Ignore the low hash rate, I haven't optimized the client with flags yet. Yes I know that that'd likely take years to find a block solo these days. Running a Phoenix 2.0 client and connected to Bitcoin-qt v0.8.1-beta running in -server mode that has downloaded the full blockchain. Where have I gone wrong? |
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Core setup for up to 6 graphics cards, a nice inexpensive expansion option for any mining farm. Qty (3) MSi 870-G45 motherboard (just the motherboard + i/o plate for a case) Qty (3) AMD Sempron 140 CPU (OEM w/fan + heat sink) Qty (3) 2GB DDR3 RAM Qty (1) 1GB USB stick Qty (2) 4GB USB Stick Just add a power supply + GPUs and you are ready to mine. $350 (or BTC equivalent) including shipping from the Seattle area, I will guarantee against DOA and promptly refund any returned component.  |
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Best offer, including shipping out the Seattle area. Sapphire 5970 4gb edition Symptoms: Fans spin when power is applied, card backplane warms up but the card will not display anything. When put into a known good system with another good GPU as the primary it boots up into the GUI and then hangs the system when this card is installed. Card only, as-is, no accessories, cables, manuals or anything else will be included. Here are some photos of the card:    |
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Two reference edition Sapphire 6950's as shown in the photos, one XFX one ATI from an open air mining rig that I've had operating for the past 9 months. Card were operated at stock speeds and never over temp, they are in excellent condition. One card has the shaders unlocked, I forget which one off the top of my head, the other has not been modified. $450 (or BTC equivalent) for both including shipping via Priority Mail out of the Seattle area. I'll include the crossfire cable and one 16x PCIe riser cable. I will guarantee against DOA and will promptly refund any returned card.   |
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The cards are ATI Radeon HD 5970 2gb editions. Both are from an open-air mining rig for 9 months, never OC'd or over temp, no fan or resetting issues at all. They are completely stock, never opened up or modified in any manner. $325 (or BTC equivalent) each, shipping included (priority mail from the Seattle area) within the continental US, if you buy both I'll throw in (2) 4-pin molex to 8-pin PCIe power adapters, a 16x PCIe riser cable and the crossfire cable. Here are some photos of the actual cards:   |
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I picked up a 5970 today and after dropping it into a rig it runs great! Except for the fact that the second GPU runs about +23C hotter than number one. Running BAMT, 820/300, getting 379M/hash from both GPUs. GPU 1 is running at 77.5C and GPU 2 is at 101.5C Obviously I didn't leave it running at those temps  The card is clean and the fan is running properly, even if I run it up to 90% the temps are reported as very high. I'm thinking maybe they did a bad job applying the thermal compound on the second GPU? Are there any major tricks to removing and re-applying the heatsink compound? I have both generic "white paste' and silver based CPU paste to use, which would be better in this application? Anyone ever had a bad thermal sensor on a GPU? The back of the card measures the same temperature as a properly behaving 5970 with my IR thermometer. Or, is it just time to return the card and call it a day? Thanks for any advice, -X |
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I am parting out my cluster, 18 GPUs overall, everything needed to mine!  Qty 4, XFX ATI Radeon HD 5870, 1Gb, HD-587X-ZN-HD-587X-ZNFC V1.6 Qty 1, XFX ATI Radeon HD 5870, 1Gb, HD-587A-ZN HD-587A-ZNF9 V1.5 Qty 1, Sapphire ATI Radeon 5870, 1Gb, 102-C00101-00-AT Qty 1, ATI Radeon 5870, 2Gb, 102C0040100 000001 7121787000G 942A1F Qty 2, Asus ATI Radeon HD 5870 1Gb, 102C0010100 000001 Qty 1, ATI Radeon HD 5970, 2Gb, 102C0000100 000001 7120080000G(945A1X) Qty 2, Diamond ATI Radeon 6870, 1Gb, 102C2220101 000001 Qty 1, XFX ATI Radeon 6870, 1Gb, HD-687A-Zn-HD-687A-7NFC V2.0 Qty 1, XFX Radeon 6950, 1Gb, hD-695X-ZN HD-685X-ZNFC VA.3 Qty 2, Asus 6870, 1Gb, EAH6870 Qty 1, Diamond HD 5850, 1Gb, 299-5E140-04BD Qty 1, Sapphire HD 5850, 1Gb, 102-X00201-00-AT OR, better yet, if someone is interested in the whole setup I'll make you a much better deal:  This includes everything needed to be mining (Motherboard, CPU, RAM, power supply, USB drive, GPU's with adapters, network switch, power strips... plug and play baby!). Located just outside of Seattle, happy to arrange a local pickup. Offers for the whole lot will take priority, after that offers on multiple items, then individual items. Cash, BTC, Paypal (you pay the fees). I will guarantee everything 100% and will promptly refund you once the item has been returned if you have any issues whatsoever. Please PM me with offers/discussion or drop me an email at bitcoinftw@gmail.com |
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Extra copy that I don't need, unopened full retail version. Not an MSDN, TechNet, OEM, download, upgrade or educational version. Retails for $300 online, looking for 31 BTC (will update with BTC swings) includes USPS Priority shipping to the continental US. Clearcoin... ok, if we have to, perfectly happy to have a conversation via phone/email/etc before closing a deal.  |
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Hm, when did I start mining again?   |
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I am trying to setup a new 5970 running the phoenix miner, GPU 0 works flawlessly but after a minute or two GPU #1 throws the following error and stops mining: The card is being run as stock, not overclocked or overvolted in any manner. Using pocllbm: "Verification failed, check hardware"
Using phoenix miner: "Kernel error: Unusual behavior from OpenCL. Hardware problem?"I believe that it is related to CrossFireX being enabled, how do I disable it under Windows? The CCC doesn't have a specific "Disable CrossFireX" option that I can find:  Any other thoughts or ideas to address this issue? Thanks! -X |
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Solo mining was going oh-so-well last week, now I'm in a slump  I was averaging a block every 19h or so running at 4,278G/hash until the 8th and nothing since then, so frustrating! ..and the difficulty just keeps going up... Just had to vent |
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I have been solo mining for a couple of months now.
A few weeks ago the machine that was hosting bitcoin running in -server mode on my network had a hardware failure, so I just started up bitcoin on a different machine and redirected all of the clients to that one.
It just occurred to me that the original machine had been crunching on a block for a couple of days and should have been quite near completion! I've resolved the hardware issue and have it back online, if I redirect my clients back to the older server will it continue where things left off, or has that block expired or timed out in some manner at this point?
Thanks,
-X
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I have a a few client machines and a server all running 24/7 dedicated and have come across the typical management issues of such a setup.
Are there any solo mining tools out there? I can use standard monitoring tools to check that a machine in live, but I'd really like to monitor and report on the "real-time" condition of the clients (hash rate, uptime, etc) from one location. It'd also be nice to see my cumulative hash rate going through the server at any given time...
I'm approaching 5G/hash and haven't been happy with a couple attempts at pool mining so solo mining is by far my preference at this time.
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I have a new system up and running using Ubuntu and a 5970 card.
Using the phoenix miner (vectors, -k poclbm, BFI_INT, aggression=8, worksize=128) it runs one core at 300/Mhash, but when I start the second core by specifying device= both miners drop down to 180-190/Mhash.
Normally that would be a sign that both miners were using the same core, but I've double checked and indeed the device= is being properly set. Starting the miner without specifying just shows [ 0 ] Cypress [ 1 ] Cypress [ 2 ] AMD Sempron
CPU usage also shoots up to 100% so it could be a resource constraint somewhere else? (No, I didn't start the miner running on the CPU!)
Any ideas? I'm new to Ubuntu so this has been an interesting learning curve to get the machine running.
Thanks,
-X
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Alright, the recent run on BTC enticed me to sell some and now I'd like to convert it to actual cash.
I'm in the US, I sold the BTC via Mt Gox (.65% fee per sale) and ended up with $812.50 USD in the Mt Gox account.
I misunderstood the setup and thought I had to use Liberty Reserve to transfer the funds from Mt Gox -> LR -> My Account, so I setup a LR account and sent the $812.50 USB from Mt Gox to Liberty Reserve, which settled with $801.47 USD @ Liberty Reserve... who won't actually transfer the funds directly to me, but wants me to use a 2nds party provider all of whom charge multiple percentage points.
Ugh, OK, now looking back I understand that Mt Gox will do a wire transfer, I've emailed them to learn the process (and fees?).
How do YOU convert your BTC to hard currency with the least amount of fees? I have more BTC that I'd like to sell soon.
Thx!
-X
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I have several machines all connected to one local machine that is running bitcoin in -server mode.
Other than adding up all of the individual machines is there a way for me to see the real-time (heck, even historical?) aggregated hash rate going through the bitcoin server?
Thanks,
-X
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I've amassed enough cards to get 2G/hash on my own so it is time to go solo.
I've setup my primary machine with (2) 5870 cards cranking away at 620M/hash quite nicely via poclbm and bitcoin running with the -server option.
Now I am trying to connect another machine to the primary over the local network, I am using the string:
poclbm --u XXX --pass=XXX--host=IP ADDRESS -v -w128 --platform 0 -d 0
No matter how I tweak things (IP address vs. host name, etc) poclbm just returns "Problems communicating with bitcoin RPC"
Both machines are Win7 Ultimate hardwired via gigabit ethernet, I have disabled the Win7 firewall on both machines.
Any suggestions? I'd really like to get the rest of my GPUs crunching away tonight!
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