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GTX 750 Ti mining - Page 81

post #801 of 1291
Quote:
Originally Posted by HothBase View Post

Nope, I'm on heavycoinpool and I've tried both 2.0 and 3.5. Also tried x86 and x64 for both.

Stick with 3.5.
x86 and x64 has almost the same performance, but stick with x86.
Try switching pool...

Are you running something else on your computer? Like YouTube, etc...?
post #802 of 1291
Quote:
Originally Posted by RavenXBR View Post

Stick with 3.5.
x86 and x64 has almost the same performance, but stick with x86.
Try switching pool...

Are you running something else on your computer? Like YouTube, etc...?
Only running Afterburner and Chrome with a flash game. I've tried closing them, but it didn't help. I'm gonna try another pool now.

Edit: Seems to be working fine now, using zhpool instead. Don't know what's wrong with heavycoinpool, but aside from the hashrate problem, I was also getting a crazy amount of output in ccminer. Like tens of lines per second, even with only one thread. Thought that was normal for HVC, since I haven't mined mined it before I didn't know what to expect. On zhpool I get a few lines per minute.

Anyone got other pools to recommend?
Edited by HothBase - 3/27/14 at 10:50am
 
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post #803 of 1291
Quote:
Originally Posted by HothBase View Post

Only running Afterburner and Chrome with a flash game. I've tried closing them, but it didn't help. I'm gonna try another pool now.

Edit: Seems to be working fine now, using zhpool instead. Don't know what's wrong with heavycoinpool, but aside from the hashrate problem, I was also getting a crazy amount of output in ccminer. Like tens of lines per second, even with only one thread. Thought that was normal for HVC, since I haven't mined mined it before I didn't know what to expect. On zhpool I get a few lines per minute.

Anyone got other pools to recommend?

I had one moment where ccminer started to show a lot of lines very fast. I just closed it, started again and everything is fine so far.

Check exactly which stratum you are using at zhpool.
They have specific ones for each rate and the one for 10MHs+ is fixdiff.
post #804 of 1291
Well I get 10.5M stable with a 750 Ti now, so I'm trying to scale it up to 6 cards next. Running all cards on one instance of ccminer only gets me ~35M. Splitting the cards up into pairs (3 instances) results in about 16M per instance, which is better but not good. I suspect that the CPU is choking the performance. The poor G1820 is running close to 100%. Or maybe it's the memory bandwidth, because I'm only using one stick. I'm gonna see if dual channel makes a difference next time I have physical access to the rig. Just remote controlling it at the moment.
 
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post #805 of 1291
Quote:
Originally Posted by craterloads View Post

Is there any benefit of 8GB, ive just ordered 4GB stick

Also CPU wise I went for the G1820 as was cheapest?

I think im pretty much set on the Palits StormX DualX cards. Highest factory OC, mem running at 6Ghz factory so no need to OC anymore, plus if OCing from reviews says not affected by NVidia power limiters like other brands. Will see tomorrow as delivery due Friday.

Hope they don't use too much power as kind of defeats the purpose, my 6x MSI Gamings are using 440w at the wall on scrypt so anywhere around that range is fine.

One thing though is i'm kind of cutting the PSU close, ordered a 550w NZXT Hale90 Gold unit as was on special offer for £40, compared to the 760w Platninum for my last rig. Hoping PSu can handle running at 80% load.

Quote:
Originally Posted by HothBase View Post

Trying to mine HVC on my 750 Ti but the hashrate is all over the place. One second it's 11M, the next it's 2M. GPU usage is constantly jumping up and down.

Quote:
Originally Posted by HothBase View Post

Well I get 10.5M stable with a 750 Ti now, so I'm trying to scale it up to 6 cards next. Running all cards on one instance of ccminer only gets me ~35M. Splitting the cards up into pairs (3 instances) results in about 16M per instance, which is better but not good. I suspect that the CPU is choking the performance. The poor G1820 is running close to 100%. Or maybe it's the memory bandwidth, because I'm only using one stick. I'm gonna see if dual channel makes a difference next time I have physical access to the rig. Just remote controlling it at the moment.

You need 8gb of ram per 6 gpu rig, usb risers preferably and the h81 btc board with a dual core g3220 for best results. Single core cpu is a bit too slow for cudaminer and ccminer it seems, also the cpu pcie lanes provided by the celeron are NOT enough.

See: http://ark.intel.com/es/products/78955/Intel-Celeron-Processor-G1820-2M-Cache-2_70-GHz

vs

http://ark.intel.com/es/products/77773/Intel-Pentium-Processor-G3220-3M-Cache-3_00-GHz

I get 14mh/s at 1400mhz core with my gigabyte WF 750 Ti oc.
post #806 of 1291
Quote:
Originally Posted by ivanlabrie View Post



You need 8gb of ram per 6 gpu rig, usb risers preferably and the h81 btc board with a dual core g3220 for best results. Single core cpu is a bit too slow for cudaminer and ccminer it seems, also the cpu pcie lanes provided by the celeron are NOT enough.

See: http://ark.intel.com/es/products/78955/Intel-Celeron-Processor-G1820-2M-Cache-2_70-GHz

vs

http://ark.intel.com/es/products/77773/Intel-Pentium-Processor-G3220-3M-Cache-3_00-GHz

I get 14mh/s at 1400mhz core with my gigabyte WF 750 Ti oc.

The G1820 is a dual core. I don't see how 300MHz and 1MB extra L3 cache can make that much of a difference. The G1820 and G3220 seem to have the same PCIe configuration? I'm using USB risers with the H81 Pro BTC. The rig has no problems hashing Scrypt or Scrypt-N at full speed with 6 cards, just having problems with HVC. I'll try adding the other stick of RAM as soon as I can though.
 
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post #807 of 1291
I have only one 2GB stick of ram and a G1820 processor as well. I see about a 40% load on each core when mining, but I am only using four cards, not six. They are on the hvc.1gh.com pool.
post #808 of 1291
Quote:
Originally Posted by ccRicers View Post

I have only one 2GB stick of ram and a G1820 processor as well. I see about a 40% load on each core when mining, but I am only using four cards, not six. They are on the hvc.1gh.com pool.
I'm at roughly 40% CPU load as well when I only mine on 4 cards. What kind of GPU usage do you get in Afterburner? My cards never seem to go past ~80%.
 
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post #809 of 1291
Quote:
Originally Posted by HothBase View Post

Quote:
Originally Posted by RavenXBR View Post

Are you using 1GH pool?
Are you using ccminer35.exe?
Nope, I'm on heavycoinpool and I've tried both 2.0 and 3.5. Also tried x86 and x64 for both.

Are you using precision, and do you have the Power Target/Temp Target Link ticked? Mine was all over until I unticked that.
post #810 of 1291
Uge difference in hashrate using 0.5 vs 0.4 version of ccminer. :O 20M to 60M with six 750ti...
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