Thank you Shino. Adding these drivers on the gigabyte R9 290 increased output to 25MH, without other changes. Before this 290 allowed the changes to voltage in Afterburner. With the new drivers it does not. Have increased settings to core clock 1150 and memory clock to 1250. Results are now 28MH.
Since it was possible to easily undervolt this 290 before, is this possible somehow? The MH is good now but it also takes up a lot of wattage. With only the 290 in, the wattage is 330watts.
My reference R9 290's are doing 31Mh # 1100 core, so 28Mh is definitely not enough mate.
Swapped the stock fan on my 295x2 with an EK Vardar. Furious edition. The FF5. Card no longer overheats, so I can over clock. Clocked to 1150 GPU and 1500 mem (1018,1250 stock clock respectively.) And now getting 57-58 MH.
Thank you Shino. Adding these drivers on the gigabyte R9 290 increased output to 25MH, without other changes. Before this 290 allowed the changes to voltage in Afterburner. With the new drivers it does not. Have increased settings to core clock 1150 and memory clock to 1250. Results are now 28MH.
Since it was possible to easily undervolt this 290 before, is this possible somehow? The MH is good now but it also takes up a lot of wattage. With only the 290 in, the wattage is 330watts.
My reference R9 290's are doing 31Mh # 1100 core, so 28Mh is definitely not enough mate.
Oh wow I u have 3 more Mhs I don't see the big deal 28 Mhs is fine for a 290 I have six 290x that only get 29 Mhs Regarding power usage remember motherboard ram cpu and disk use around 100 watts
U can also under lock around 100mv using afterburner and save another 40 watts
i am using the cpu version ethminer, crosscompiled for k1om arch. The sha3 implementation of cryptoPP is slow. I will widen this to use 8 byte SIMD instructions. k1om does not support AVX-512, but it does support an alternative 512bit SIMD extension. looks like 8x5110P hash at 120Mhs, and use 1261W.
Swapped the stock fan on my 295x2 with an EK Vardar. Furious edition. The FF5. Card no longer overheats, so I can over clock. Clocked to 1150 GPU and 1500 mem (1018,1250 stock clock respectively.) And now getting 57-58 MH.
Congrats with the result. Planning myself on getting a Gigabyte 295x2. Assuming you use 1 EK Vardar? Do you plug it to the card, or to the mobo/psu? Any under/over volting with the OC? May I ask your settings? Thanks.
@pantador I couldn't figure out how to undervolt in Ubuntu 14.04.4... So I assume it's all over clocking and overvolting.
It is one EK Vardar furious, the 3000 rpm version... It is Very powerful. It's also a 4pin so no can plug into card. I purchased a sevel buck phobya y splitter from miles to two 4 pin and one 3 pin. I plan to get a pwm fan controller eventually, but considering my clocks are 1150, 1500 (core,mem) it's hot, so I won't be turning down the Vardar. I found the industrial noctua 3000rpm nf-f12 has quite a bit more static pressure, but it was also 8bucks more per fan.... Since it touts 150000 hour run time (noctua) as opposed to Vardar's 40000... It's likely worth it for the extra bucks. I was trying to keep costs as low as possible.
Also, keep in mind, if you haven't done research already... The 295x2 requires two eight pin pcie connectors with at least 25 amps per rail.... Meaning it needs two independent rails that aren't shared with anything in order to function properly...
Oh, and by the way... The EK is powerful enough to cool the cars even pushing through the grate in the top of the thermaltake core x9, and it's dust filter. I've since moved it to lower the temps another four c, by moving the rad to where my exhaust was.
Also... When pushing through the 295x2s rad... This fan ran surprisingly quiet...(still loud, but it wasn't as bad as I thought it would be.)
@Acysbib Thanks for the details. Haven't seen EK Vardar where I am at, maybe I'll just use Corsair SPs, plug it to PSU with a molex adapter, 12V single or maybe 7V if push pull, which ever works I guess. Some say they're loud.
AMD doc says 28A per 8pin, or 50A combined for both 8pins. I'm using Corsair RM850X, single 70A 12V on the label, I guess it'll be enough. And separate cables, no daisy chain I think.
Tt X9 case, interesting. The reason I would like to try 295X2 because current rig is mATX Asus Z77M, inside Tt V21. I think dual GPU per card is the way for limited expansion/space. Currently hashing single Sapphire Nitro 390, and would like to expand. Closed case but I've removed the magnetic filters. 1 200mm front, 2x140mm in on top of GPU, 2x140mm ex back and right side. All @12V molex adapters. 140mm are Lepa Vortex, not really powerful or loud. Maybe being $6 a piece got something to do with it. Getting 31Mh, 1100/1500, -66mV, about 45 deltaT @50% GPU fan.
Not planning on building another rig, or turn it into an open case with riser for multi cards. Limiting myself to about 600W, targeting 55~60Mh, I think the option is 295X2, because I simply could not afford a Pro Duo . Or add another 390 but they'll be sandwiched, that wouldn't be good. I might already have a plan if I end up with multi cards.
Any temp details that you would like to share, GPUs and VRM? I've never use Ubuntu, so idk what monitoring info you'll be getting. Also have you by any chance measure at the wall wattage for a single 295x2? Thanks again.
I still need to order a kill-o-watt so I can monitor. And with it mounted the way it is using
watch -n 3 aticonfig --adapter=all --odgt
I get about 65 in one and 68 in the other... Depending on the temp in the room.... And my rad is my ONLY exhaust. I will be changing that when I get my second card, but it works well.
I also have gotten a spectre pro 200mm for extra intake to ensure positive pressure because the thermaltake pure is quite... But sucks.
Are those exhaust mounts 120/140s? Or only mount holes for 140? If so you cannot mount the 295x2 as it's 120. It takes about the size of a 140, but the holes are closer.
Also, be careful with the temps rolling through the pipes... Pretty sure extra air around them, and they not resting on anything is the best way to go, so you need enough room to make sure they don't obstruct... That's why I went with the huge case... For, in theory... 4 pro duos or Polaris chips.
Thanks for the tips. Getting myself a watt meter in couple of days.
All fan mounts are 120/140 compatible, front only also 200mm compatible. I think there's enough space for the pipes to go around the case. If I get the 295x2, I'll just fiddle with the case fan configs and see which one is best.
2 ProDuos would be great for my purpose, but not right now. With that money and about 700W+, getting a new rig with 6 nanos might be more interesting. Don't want to wait for Polaris if it is still months away. I'll stick with 295x2 if I could find a good deal.
So if you need mining hardware now, the 295x2 is a fine choice at .102 megahashes per watt.
I believe the HD 7990 is .130-.140 megahashes per watt... (50 MH at 350-375 Watts) but it's air cooled. So if you can get some noctua nf-a14 3000s in the case it should be able to force enough cool air for them... At 156 cfm per 140.
So if you need mining hardware now, the 295x2 is a fine choice at .102 megahashes per watt.
I believe the HD 7990 is .130-.140 megahashes per watt... (50 MH at 350-375 Watts) but it's air cooled. So if you can get some noctua nf-a14 3000s in the case it should be able to force enough cool air for them... At 156 cfm per 140.
7990 at this point in the game will be more like 43-44mhs and not much room for OC since it runs hot already.
True that true that. I don't have one, so I cannot tell you what they do, in real world hashing.
I can tell you that the 295x2 can handle some serious over clocking, if the radiator is set up. (Push/pull with a pair of noctuas or corsair sps high performance.)
SAPPHIRE NITRO Radeon R7 370 4GB right out the box plugged in for benchmark. Win 8.1, crimson 16.? drivers. Bout to do a fresh install of Win7 and older catalyst drivers.
C:\Users\Garbear\Downloads\ethminer-opencl-0.9.41>ethminer -M -G Found suitable OpenCL device [Pitcairn] with 3221225472 bytes of GPU memory Benchmarking on platform: GPU Preparing DAG... Warming up... i 02:31:00|gpuminer0 workLoop 0 #00000000… #00000000… i 02:31:00|gpuminer0 Initialising miner... Using platform: AMD Accelerated Parallel Processing Using device: Pitcairn(OpenCL 1.2 AMD-APP (1912.5)) Printing program log
Creating one big buffer for the DAG Loading single big chunk kernels Mapping one big chunk. Trial 1... Creating buffer for header. Creating mining buffer 0 Creating mining buffer 1 12928127 Trial 2... 17086871 Trial 3... 17081191 Trial 4... 17069841 Trial 5... 17058507 min/mean/max: 12928127/16244907/17086871 H/s inner mean: 17069846 H/s Phoning home to find world ranking...
Ethminer only use 3 GB of GPU memory do you know it ? You can see it here :" Found suitable OpenCL device [Pitcairn] with 3221225472 bytes of GPU memory"
I believe the dag is 1.4 gigs at the moment... I think some of your RAM isn't allocated to your miner. That's why the full 4 gigs don't show up in your ethminer.
I don't know what the command is in Windows but it's the one about alloc_Max_mem 95 or 100. You don't need that step as you have more than enough RAM for the dag for the next year.
i misinterpreted the Xeon Phi 5110P baseline benchmarks. The proxy results are inaccurate so the screenshots are invalid. The system hashes at 1.2Mhs per card. these speeds are similar to the open cl speeds for this card.
Comments
Rock-solid, with low temps (mid 60s @ 55-60% fan speed.. barely audible).
Regarding power usage remember motherboard ram cpu and disk use around 100 watts
U can also under lock around 100mv using afterburner and save another 40 watts
230 watt for 28 Mhs is quite good
The baseline for Xeon Phi 5110P using k1om cpuminer ~15-16 MHs @ ~160W.
The sha3 implementation of cryptoPP is slow.
I will widen this to use 8 byte SIMD instructions.
k1om does not support AVX-512, but it does support an alternative 512bit SIMD extension.
looks like 8x5110P hash at 120Mhs, and use 1261W.
what are your hashrates as of today
R9 380 nitro elpida mem and claymore miner - 21.1-21.2 mh/s
all clocked mem to 1500
https://github.com/mancoast/libethereum-buildbot/releases
thanks for the info.
Idk whether the Gigabyte 295x2 could undervolt.
It is one EK Vardar furious, the 3000 rpm version... It is Very powerful. It's also a 4pin so no can plug into card. I purchased a sevel buck phobya y splitter from miles to two 4 pin and one 3 pin. I plan to get a pwm fan controller eventually, but considering my clocks are 1150, 1500 (core,mem) it's hot, so I won't be turning down the Vardar. I found the industrial noctua 3000rpm nf-f12 has quite a bit more static pressure, but it was also 8bucks more per fan.... Since it touts 150000 hour run time (noctua) as opposed to Vardar's 40000... It's likely worth it for the extra bucks. I was trying to keep costs as low as possible.
Also, keep in mind, if you haven't done research already... The 295x2 requires two eight pin pcie connectors with at least 25 amps per rail.... Meaning it needs two independent rails that aren't shared with anything in order to function properly...
500 Watts for one card is a monster!
Also... When pushing through the 295x2s rad... This fan ran surprisingly quiet...(still loud, but it wasn't as bad as I thought it would be.)
AMD doc says 28A per 8pin, or 50A combined for both 8pins. I'm using Corsair RM850X, single 70A 12V on the label, I guess it'll be enough. And separate cables, no daisy chain I think.
Tt X9 case, interesting. The reason I would like to try 295X2 because current rig is mATX Asus Z77M, inside Tt V21. I think dual GPU per card is the way for limited expansion/space. Currently hashing single Sapphire Nitro 390, and would like to expand. Closed case but I've removed the magnetic filters. 1 200mm front, 2x140mm in on top of GPU, 2x140mm ex back and right side. All @12V molex adapters. 140mm are Lepa Vortex, not really powerful or loud. Maybe being $6 a piece got something to do with it. Getting 31Mh, 1100/1500, -66mV, about 45 deltaT @50% GPU fan.
Not planning on building another rig, or turn it into an open case with riser for multi cards. Limiting myself to about 600W, targeting 55~60Mh, I think the option is 295X2, because I simply could not afford a Pro Duo
Any temp details that you would like to share, GPUs and VRM? I've never use Ubuntu, so idk what monitoring info you'll be getting. Also have you by any chance measure at the wall wattage for a single 295x2? Thanks again.
watch -n 3 aticonfig --adapter=all --odgt
I get about 65 in one and 68 in the other... Depending on the temp in the room.... And my rad is my ONLY exhaust. I will be changing that when I get my second card, but it works well.
I also have gotten a spectre pro 200mm for extra intake to ensure positive pressure because the thermaltake pure is quite... But sucks.
Are those exhaust mounts 120/140s? Or only mount holes for 140? If so you cannot mount the 295x2 as it's 120. It takes about the size of a 140, but the holes are closer.
Also, be careful with the temps rolling through the pipes... Pretty sure extra air around them, and they not resting on anything is the best way to go, so you need enough room to make sure they don't obstruct... That's why I went with the huge case... For, in theory... 4 pro duos or Polaris chips.
All fan mounts are 120/140 compatible, front only also 200mm compatible. I think there's enough space for the pipes to go around the case. If I get the 295x2, I'll just fiddle with the case fan configs and see which one is best.
2 ProDuos would be great for my purpose, but not right now. With that money and about 700W+, getting a new rig with 6 nanos might be more interesting. Don't want to wait for Polaris if it is still months away. I'll stick with 295x2 if I could find a good deal.
So if you need mining hardware now, the 295x2 is a fine choice at .102 megahashes per watt.
I believe the HD 7990 is .130-.140 megahashes per watt... (50 MH at 350-375 Watts) but it's air cooled. So if you can get some noctua nf-a14 3000s in the case it should be able to force enough cool air for them... At 156 cfm per 140.
I can tell you that the 295x2 can handle some serious over clocking, if the radiator is set up. (Push/pull with a pair of noctuas or corsair sps high performance.)
You can see it here :" Found suitable OpenCL device [Pitcairn] with 3221225472 bytes of GPU memory"
I don't know what the command is in Windows but it's the one about alloc_Max_mem 95 or 100. You don't need that step as you have more than enough RAM for the dag for the next year.