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GTX 750 Ti mining - Page 77

post #761 of 1291
Quote:
Originally Posted by darude View Post

Hmm. And under Windows, is the OCing permanent? So if I set it under Windows, it will stay that way and be OCed in Linux also? Or that is only for that current Windows session?
Also, do you need to BIOS mod for being able to OC under Windows?

Thanks,
Dan

I'm using an "OCable" Gigabyte GTX750 Ti.
Without OC, I achieve 265KHs on scrypt coins.
"OCing" it with Precision X, and not modifying the BIOS, I achieve 300KHs.

Every time I restart the computer the OC is lost and I need to use Precision X again.

I didn't try BIOS mod.
post #762 of 1291
This is my first time using multiple PCIe risers and Cudaminer is throwing more errors than it should now. Each card has its own instance, and the risers are regular 16x to 16x. Are these cards even more finicky when you use risers?
Edited by ccRicers - 3/23/14 at 7:55pm
post #763 of 1291
Quote:
Originally Posted by ccRicers View Post

This is my first time using multiple PCIe risers and Cudaminer is throwing more errors than it should now. Each card has its own instance, and the risers are regular 16x to 16x. Are these cards even more finicky when you use risers?

I use all 1x-16x risers, can't really say if they are more finicky but Ive had 12 cards running stable for days at around an average of 295-300khs
post #764 of 1291
Quote:
Originally Posted by Avarclackarz View Post

oh ok so it's a multi-GPU issue with Windows 8 that's right? And starting at how many GPUs (in case i want to buy a second or a third GTX 750ti)?

I really can't say with 2-3 but Ive seen people have issues with 5-6.
post #765 of 1291
Quote:
Originally Posted by Americonfusion View Post

I really can't say with 2-3 but Ive seen people have issues with 5-6.

I use 4 of them. The regular ribbon kind. I'm going to give the USB risers a try and see if they work better.
post #766 of 1291
is recommend the USB ones... they are way better.
post #767 of 1291
I wanted to give an update on the 2 Galaxy 750 ti GC I have running inside a TT armor case. I ended up pushing the power limit to 100% and cranking the core 200 + and mem 400+ and have been able to achieve 305-310 khash per card, pulling 125-135W from the wall from the both. The bottom card sits around 46C at 80% fan speed, the top card runs around 57C @ 80% fan speed.

These cards have been mining very well, not once has cudaminer closed on me with my OC settings. I'm wondering if I should pick up a low profile Galaxy 750 ti to replace the bottom card. This would allow the upper fan to pull in more air over the top of the low profile card.
post #768 of 1291
Quote:
Originally Posted by xartic1 View Post

I wanted to give an update on the 2 Galaxy 750 ti GC I have running inside a TT armor case. I ended up pushing the power limit to 100% and cranking the core 200 + and mem 400+ and have been able to achieve 305-310 khash per card, pulling 125-135W from the wall from the both. The bottom card sits around 46C at 80% fan speed, the top card runs around 57C @ 80% fan speed.

These cards have been mining very well, not once has cudaminer closed on me with my OC settings. I'm wondering if I should pick up a low profile Galaxy 750 ti to replace the bottom card. This would allow the upper fan to pull in more air over the top of the low profile card.

Very nice.
These 750's are really awesome.

@All
Is it possible to mine Darkcoin with NVIDIA GPUs?
post #769 of 1291
Thread Starter 
Quote:
Originally Posted by xartic1 View Post

I wanted to give an update on the 2 Galaxy 750 ti GC I have running inside a TT armor case. I ended up pushing the power limit to 100% and cranking the core 200 + and mem 400+ and have been able to achieve 305-310 khash per card, pulling 125-135W from the wall from the both. The bottom card sits around 46C at 80% fan speed, the top card runs around 57C @ 80% fan speed.

These cards have been mining very well, not once has cudaminer closed on me with my OC settings. I'm wondering if I should pick up a low profile Galaxy 750 ti to replace the bottom card. This would allow the upper fan to pull in more air over the top of the low profile card.

What's your PSU efficiency and everything drawing power besides the GPU?

125-135W from two GTX 750 Ti is good
post #770 of 1291
is recommend the USB ones... they are way better.
Quote:
Originally Posted by RavenXBR View Post

Very nice.
These 750's are really awesome.

@All
Is it possible to mine Darkcoin with NVIDIA GPUs?

Not yet, but you can mine a lot of coins and algorithms with cudaminer, and also some extra ones with ccminer. (new mining program by cudaminer's dev)

Ex: fuguecoin, groestlcoin, heavycoin (ccminer) and all the scrypt, scrypt-jane, scrypt-N and keccak coins you like (cudaminer).
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