Configuring CudaMiner for GeForce GTX 750 Ti

I have 9 brand new GeForce GTX 750 Ti. I tried nicehash client with 2 cards on my office computer. They generated around 1.5USD per day. But I want to mine with all the 9 cards (probably by building a rig). I’ve been trying to setup CudaMiner (2014-02-18) now to mine LTC but it gives this error.
[2017-08-25 22:39:46] Stratum detected new block
[2017-08-25 22:39:47] GPU #0: cudaError 30 (unknown error) calling ‘cudaFree(0)’ (D:/Christian/Documents/Visual Studio 2010/Projects/CudaMiner/ line 240)
[2017-08-25 22:39:47] GPU #0: GeForce GTX 750 Ti with compute capability 5.0

CudaMiner(2014-02-14) gives this error:
[2017-08-25 23:04:24] NVML GPU temperature, fan, power monitoring enabled.
[2017-08-25 23:04:24] 2 miner threads started, using ‘scrypt’ algorithm.
[2017-08-25 23:04:24] Stratum detected new block
[2017-08-25 23:04:24] GPU #1: cudaError 30 (unknown error) calling ‘cudaFree(0)’ ( line 240)
[2017-08-25 23:04:24] GPU #1: GeForce GTX 750 Ti with compute capability 5.0

Should I build the rig and stick to nicehash or can some one help me configure Cuda.
Appreciate your help :slight_smile:

stay away from nice hash…they suck and don’t give you all your hashing power…you need ccminer optimized for the 750ti:

however make sure you keep the card cool because litecoin uses ALL of the GPU memory…I use Gridseeds and Zeus ASIC’s myself for litecoin and mine monero with my 750ti because it is more profitable…the ccminer version for cryptonight for the 750 ti is:

I did get my first crypto payment ever by mining litecoin however and it took me a week to earn .01 running abut 8 hours per day…with the4 current difficulty the 750 ti makes .001 per day running for 8 hours per day on litecoin and make .02 monero per day running 8 hours…so that is why I do what I do…but I do recommend getting your feet wet with the 750Ti…from what I read it is the most stable NVidia mining card out there right now…and has served me very very well over the past 2 years

just make sure you have the matching drivers installed…like if the ccminer uses CUDA 8.0 architecture then make sure you have that installed…where cryptonight uses 3.0…you can install multiple drivers for the same devices with no issues…only problem I ever had with my card was trying to run mismatched architecture and drivers together…just make sure the one you have installed and the one contained in the miner folder are the same…some miners use cuda 7.0 and 7.5 too but I found 8.0 to be the fastest and most efficient

also if you want to mine the most profitable coin then track it your self at because those nicehash developers are proud of their software…1-3% for un-warrantied (“at your own risk”) software is too much for me…but that’s my opinion