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i am facing this problem http://i64.tinypic.com/j9pw02.jpgcheck out GPU1 H/S i tried fresh install drivers with DDU, and tried with diffrent cards also same problem. my 1 gpu always give me bad hashrate also check afterburner ss. and i also tried diffrent pool. but same problem. even i tried with GA-970A-DS3P motherboard and i tried with 5 rx 470 cards also and tried 15.12 drivers too my config MB= gigabyte GA-990FXA-UD3 R5 RAM= 8GB VIRTUAL MEMORY = 16GB PROCESSOR= AMD FX6300 1200WATT PSU Just put screen on card running slow and put it back on preferred card when card is running properly!  i m not understand u bro. pls explain more This usually happens when pc reboot and miner restarts. I remove HDMI cable from the usual card and insert it into card that's hashing low, hashes will start to climb on card and than I put HDMI back on coolest card. I used to uninstall driver, but that's a waste of time. Plug HDMI cable the first GPU in the x16 Pcie slot (if this is the slow hashing card) and the other ones hashing normal speed without cable. This helped me the same problem... |
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Funny, so I've installed windows on one rig, Win 10 Pro, especialy for Claymore 8 and my 480's and like 10 years go, Win freezes completely on a random basis  It feels like nothing has changed since XP etc Anyone got Win10 running stable on a Z170 based Motherboard ? (Asrock Gaming K6) Ubuntu runs flawless. Which drivers do you use ? When I'm trying to install 15.12 it just hangs at 2% for the AMD App manager for 480 use latest driver Yes, I'm on the latest whql driver without the hot fix, might that be the problem? change battery to high performance ? > https://www.youtube.com/watch?v=-txw9u6X5FA16 gb virtual memory ? > https://www.youtube.com/watch?v=NkHjRKFUnNcturn of superfetch ? > https://www.youtube.com/watch?v=RPvOMlxLQAIi turn into onboard mode, and freeze disappear, but before it, no hope for it, keep freeze randomly and lastly find intelHD driver, uninstall it if any Thanks, will try all that If using a z170 board good luck getting any more than 3 to run. I finally got 3 stable and will be building an open air case to put all my cards on risers and hopefully get 4 stable. The issue is resources and pcie lanes on the board. Try putting all your cards on risers and if they already are check device manager see if any say resources not available. This is most likely your issue same as mine just shit motherboards right now. I've heard this too a few times. What's a recommended board for 1151 cpus then? I have AsRock z170 Extreme3 only 4 card detected sometimes run over 100 hours sometimes freeze after 10 min. Try set pci express to GEN1 in BIOS disable all unused hardware like integrated VGA. Don't buy 350$ motherboard for mining look this one http://www.asrock.com/mb/Intel/H81%20Pro%20BTC%20R2.0/ smoothly running 6 GPU, cost 60-70$, buy cheap celeron 35$ and 4GB RAM 20-25$. Sorry my bad english... |
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I thought this would be the best place to ask.
In the US where is the cheapest place to buy win 10. Is the 64 bit home edition good enough?
TIA
Buy WIN 10 x64 Prof serial on aliexpress (5-10$), install original microsoft image and run without problem many monts ago, activated/updated like original no activators needed and simply upgraded to anniversary edition. |
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I could downvolt eth only to use ~80w stock clocks, GPU-Z (not at wall, but same card so it's relevant). ZEC uses similar. If you downclock to say 1000MHz instead of 1260, you get same speed on Eth (zec suffers), but you can lower voltage another 100mv or more, chopping off perhaps another 20w (haven't tested yet).
Sure you can downvolt to that extreme but your hash per watt suffers past certain points. Anyways, good luck doing that 2 times a day per card if you're using the RX series if you're wanting to mine whatever is the most profitable. Just FYI, on my Sapphire 470 Nitro 4Gb, I'm hashing at 150-152H/s per card with a hex offset of -162.5mV undervolt. The whole system uses around or less than 400W @ Wall, all 4 cards give me a nice and stable 600H/s. I'm currently hashing with 3 rigs at 1800H/s for 1260W, so that's a ratio of ~0.7W/H What I noticed, is that past -150mV, you gain very little watts. Dude, I using Sapphire RX470 4GB (not Nitro) some modded memory timings, and one give me 170-172 H/s other 4x RIGS ~ 690 H/s. Yes, but I doubt you'll achieve that hashrate with a -162.5mv undervolt . You're not mentioning your wattage @ Wall? @Ursul0 yep, my electricity cost is quite high (I'm in Switzerland) so I'd rather hash a bit slower but use as little juice as possible. I've got some solar panels coming in though, 20x 300W panels  No undervolt, everything stock (volt, clock, memory speed), but maybe try tomorrow... |
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I could downvolt eth only to use ~80w stock clocks, GPU-Z (not at wall, but same card so it's relevant). ZEC uses similar. If you downclock to say 1000MHz instead of 1260, you get same speed on Eth (zec suffers), but you can lower voltage another 100mv or more, chopping off perhaps another 20w (haven't tested yet).
Sure you can downvolt to that extreme but your hash per watt suffers past certain points. Anyways, good luck doing that 2 times a day per card if you're using the RX series if you're wanting to mine whatever is the most profitable. Just FYI, on my Sapphire 470 Nitro 4Gb, I'm hashing at 150-152H/s per card with a hex offset of -162.5mV undervolt. The whole system uses around or less than 400W @ Wall, all 4 cards give me a nice and stable 600H/s. I'm currently hashing with 3 rigs at 1800H/s for 1260W, so that's a ratio of ~0.7W/H What I noticed, is that past -150mV, you gain very little watts. Dude, I using Sapphire RX470 4GB (not Nitro) some modded memory timings, and one give me 170-172 H/s other 4x RIGS ~ 690 H/s. |
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Thx Claymore!
My
Sapphire RX 470 4GB (not Nitro) x1 from 26-32 S/s genoil to 40-42 S/s claymores
Sapphire RX 470 4GB (not Nitro) x4 from 85-105 S/s genoil to 154-160 S/s claymores
Work without rejected shares and stable in 2 hours with latest AMD driver, win 10.
GPU bios modded, some memory timings but run stock cpu and memory frec
Nanopool stats confirm the speed upgrade
Latency littlebit higher than before from 100ms to 500ms EU server nanopool but working good!
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