Clocks most certainly do change temps. I have several gigabyte wf3 280x with fixed voltage and the temp increases with clock, higher clock = more power draw = more heat.
I undervolt those same cards to 950 then mine ETH with 875/1250 for maximum savings. Still gets over 19 M/s that way. |
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I cannot disagree more with the above comment on Sapphire.
I have used 8 280x's (Dual-X, 3GB OC, 11221-00-20G) since late 2013 and they still go strong with the exception of changing out some fans.
Of course, YMMV.
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ethminer.exe doesn't work with awesome miners yet ?
Ethminer is something I'm looking into, but there are no software with good API yet and also some different mods of ethminer. Any specific version you prefer? Claymore already has a remote viewer for his miner. There does seem to be adequate API support. Since I have been mining eth exclusively for the past 8 months I haven't used my Awesome Miner. I really miss it. |
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Nice Info,
I have 4x XFX R9 390's and I had to undervolt and underclock them to keep their temps below 72C with just ETH mining. I don't have decred enabled.
I have them each configured independently but in total they run about 102MH with Claymores miner.... not sure how much power they are drawing but at stock speeds/volts I was seeing temps well into the 80C+ range with an ambient temp of 23-24.5C (74-76F) and I was getting about 115ish MH.
For my money its better to undervolt and underclock to keep the temps down and save a ton of power/heat.
How do you do the undervoltage? Do you use MSI afterburner or the GPU mod programme such as OP mentioned? I used MSI Afterburner to undervolt the maximum -100mv after applied the unlock voltage controls setting. You can't use the slider to go past zero but you can manually type -100 in the field and apply it. I plan on eventually doing a Bios mod as I'm familiar with that type of mods as I have experience with them from my gaming systems. Edit: I also used the same software to underclock the clock speed of the GPU's using the same -value approach (example -45). I also use GPU-Z for monitoring when testing new settings. I did not modify the memory speeds. If your Core clock is less than 1100 MHz, the memory speed can be lower than 1250 MHz, 1200 MHz is fine. That doesn't make any sense to me. AMD GPUS have memory timings set at 125MHz intervals, always ending at a multiple of 125MHz. You get the best random access speed at the high end of each range, like 1250 or 1500. |
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Guys, I've been mining with v4.1 at dwarf's, my rigs are stable and everything is fine. However, I've been loosing hash rate over the last few days  I've lost 1~2% in three or four days. Is this normal? Can it be related with the constant DAG growth? Are you experiencing anything similar? Yes, yes, I am. Larger DAG I am fairly sure is the culprit. Individual cards in the rigs all have less hashrate as well with this new epoch. |
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Had the same problem had to use VBE7 and atiflash the GPU ROM.
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Genoil, I am trying but I can't get it to work. What would be the config for using stratum if the following? # Host and port for your workers
HOST = "192.168.1.101"
PORT = 8080
# Coin address where money goes
WALLET = "<YOUR ETH PAYMENT ADDRESS>"
# Main pool
POOL_HOST = "eth-us.dwarfpool.com"
POOL_PORT = 8008
# Failover pool
POOL_FAILOVER_ENABLE = True
POOL_HOST_FAILOVER = "eth-eu.dwarfpool.com"
POOL_PORT_FAILOVER = 8008 Currently my miners uses the following: @echo off setx GPU_MAX_ALLOC_PERCENT 95 setx GPU_USE_SYNC_OBJECTS 1 setx GPU_MAX_HEAP_SIZE 100 setx GPU_SINGLE_ALLOC_PERCENT 95 setx GPU_FORCE_64BIT_PTR 0 ethminer.exe --farm-recheck 200 -t 2 -G -F http://192.168.1.101:8080/myMiner --cl-extragpu-mem 0 --cl-local-work 256 --cl-global-work 16384 Thanks, in advance. <hoping> |
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This is the buy the rumor stage. Once Homestead hits, tomorrow, the dumping shall commence. Just watch and see.
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Buy the rumor, but sell the news!
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Hello,
It seems that DwarfPool is not working properly: "Website temporary disabled".
Does anyone has information regarding that ?
Thank you.
Regards
All I know is that the "back end" is still working. I am getting payouts. |
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anyone tried dwarfpool's proxy stratum, will it really increase earnings with some %?
I have used Suprnova, Coinotron and Dwarfpool. For some reason, I get more with Dwarfpool and his proxy solution even with a higher difficulty. 5% higher than February with Coinotron. 10% higher than January with Suprnova. It may have to do with server proximity. I am using Dwarfpool's server from Montreal, Canada which even though it pings slower than Suprnova, it beats it. |
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Get the 280x. Undervolt both cards to 0.95v, if stable, lower your clocks and memory speed to 875/1250. Sit back and make $4.16/day/GPU before electricity costs.
Thanks so it's the undervolt that allows better ROI. I just got a used one from Craigslist the XFX DD which is overclocked to 1080/1550 MHz for $180.00 so not bad at all. Well undervolting will spare the electric bill. My experience with the XFX 280X DDs is that you shouldn't attempt to undervolt lower than 1.125v or they freeze forcing a reboot. Still they are great cards with lifetime cooler replacements via RMA online. |
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Get the 280x. Undervolt both cards to 0.95v, if stable, lower your clocks and memory speed to 875/1250. Sit back and make $4.16/day/GPU before electricity costs.
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I think it is better to try coinotron.com and their proxy mining eth it is the fastest mining of eth.
As much as I like to frequent suprnova, coinotron is what works for me as well. |
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Which Exchange is best for buying/Selling ETH?
shapeshift.io anonymous and pretty fast, ETH to BTC from shapeshift.io: WARNING: Ether is currently in its “Frontier” phase, which is highly experimental. Ether transactions (on both ShapeShift and other exchanges) will take 3 hours to confirm (and your exchange rate isnt determined until that confirmation happens) The only exception is if you use our “specific amount” feature (in which case we will lock your rate for 10 minutes as long as we receive the ether within those 10 minutes, but it will still take 3 hours to receive your BTC on the other end). Consider Ether highly risky during Frontier – no guarantees are made about anything, whatsoever. lol |
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ETH realy needs to cooldown a bit, the more you people attempt to pump it now the worse it will be next week, when BTC hits 600+ USD. It is not smart to ignore such BTC upside potential and invest into expensive altcoins now.
BTC will not hit 600 next week or next month. Yes, it will.  Yes, it will. clif said so. |
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Also, a dual core Celeron will likely not be sufficient for 4x GPU's of any kind, hyperthreaded or not; need at least one thread/physical core (4-core proc). An Athlon might get you there for the same price. Probably gonna take a few months of solid mining to recoup most of that rig's cost (given current $5USD/ETH)...  For a dual core Celeron, it is fine to do the mine itself as the mining is done by the GPU. But it take long time to initialize. Yeah, the processor doesn't matter. Most of my ETH mining is on rigs with AMD single core Sempron 145s. I see no difference with them and my rigs that have much, much faster processors. |
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