Hello all,
Not sure if this is the right place, so please flame me if necessary
I just started a 2x Vega56 rig using windows 10 and a Biostar TB85 mobo, 8GB of crucial DDR3L RAM, and a 200GB HDD. I'm currently getting about 5 Kh/s (**using cryptonight-fast** so i think this is approximately normal) from just one 56 running with virtual memory disabled. No BIOS mods, nothing fancy, no undervolting, no overclocking, just windows 10 and castXMR. I'm currently getting about 5 "CL_MEM_OBJECT_ALLOCATION_ERROR"s per second, but the gpu seems to be running stable. The other one is idle right now, until I can get the first one functioning properly. I have tried using both gpus, and I get about 100 errors per second (literally pages and pages per second), but it says I'm getting 13 Kh/s running both together. I only did this for a couple minutes.
Now enough details, on to the meat of the problem. I've seen in several threads and several posts that the answer to the allocation error is to increase my virtual memory allocation to 16, 32, even 64 GB. But anytime I enable virtual memory, my hashrate literally goes down to 10%. I'm getting about 400 h/s on each gpu. No errors, so I guess it solved my problem, but I don't think I should be giving up 90% of my hashrate. I've tried 16, 32, 64GB page files on my C drive (HDD), as well as on an external HDD (USB 3.0), but everything kills the hashrate down to 400 h/s each.
Has anyone seen something like this before? Any suggestions?
Thanks in advance! Best regards,
theagemaway