Hello,
My old PC ist collecting dust, so I thought about using it to mine some Monero
It's an Core 2 Quad, 6GB Ram, GTX 280
So I checked NVidia:
https://www.geforce.com/hardware/desktop-gpus/geforce-gtx-280/specifications and saw tht the card is CUDA compatible.
After some looking around I found this:
https://miner.pizza/benchmarks/gpu (search for gtx 280)
MSI GTX 280 TWIN FROZRIII 1 GB DDR3 290 250 W CCMINER 2.0 X64 (APRIL 2017) WINDOWS 7 x64
So I did a fresh win 7 x64 (SP1) install and downloaded the latest drivers from nvidia (342.01 WHQL, Date: 2016.12.14 )
From the CUDA archive
https://developer.nvidia.com/cuda-75-downloads-archive I downloaded and installed CUDA 7.5
From
https://github.com/tpruvot/ccminer/releases I downloaded "ccminer-2.0-rc3-cuda-7.5.7z"
Well ccminer tells me, that my Computer is not CUDA 7.5 compatible, which I highly doubt.
After this fail I tried also newer ccminers and Cudas, but all failed. The only Version of ccminer I got working is th very old one from MinerGate. It did show incredible Hash Rates of over 40000/s, but the Miner did not pop up in the List of my pools interface (I did not use it to mine at the MG pool!). So I guess it's doing while (1) {}
Does anyone have an idea why it won't mine on my good old gtx 280? Could it be because I had an GT 710 installed while setting up Win 7 (I forgot to remove it from the PC..) and it installed a very new driver (390.something), which did not work with the GTX 280. I removed the GT 710 and deinstalled the driver, before I installed the latest gtx 280 driver (v342)