Originally Posted by drnilly007
I have started mining on the gpu side of the 7850k. I have a dedicated gpu and since there are no dual graphics I might as well use up tech that's built in.
You have to make sure the igpu driver is installed. I initially installed the driver with the dgpu and it would only recognize the igpu as a Generic video controller.
Pretty cool I have no idea what hashrates mean or if it is low or not but I can guess its not very much but at least its being used.
Serious miners measure power consumption and tweak voltages (underclock) to get the most economical balance.
I just set up a mining rig. Up here in Canada the cheapest Kaveri chip is just north of $200. I instead went for a dated A10-5800K for my litecoin mining experiment as it was over $100 less. (Eventually it'll be turned into an HTPC.
There's no voltage options in my board's BIOS, but I underclocked it to 2.0ghz and 300mhz on the CPU/iGP - slow, but still fast enough to handle any video stuff tossed at it. In the meantime the whole setup draws about 32 watts from the wall.
Well, until I added an R9 290 - then it's 360 watts from the wall. Gets about 820khashes/sec. (I may be able to tweak/improve that further.)
If you've got a kill-a-watt, check what your CPU is drawing and figure out if it's economical. If it's drawing 150 watts for 100khash, you're probably spending money rather than making it.
Hey, since the GPUs on these 7850K's are bandwidth starved, how low can you clock them without impacting performance significantly? I'm wondering if the 30x throttle can be defeated by underclocking the IGP?