@neekir your 1060 are not working good on 250-277 Sol

a. mining on 250 mls latency = BAD not know on what pool you are but better try to get a better one with 30-60 mls at list
b. i am tenting to believe your I/s (intensity), low one, it cause by High temperature aka miner it lower to keep temp lower ... with it can cause low hrate aka that 250-280 Sol/s
c. 77 C temp is to high try to fix cooling somehow ... it will improve point b

- equihash algoritm it not care much about memory speed it need more brute force from GPU combine by cuda core & pipeline soo hynix i think is not a realy a issue
- try to post technical data use in tuning like Power Limit, Temp Limit, GPU clock, Mem Clock

@akuci yup for sure he have some bad thing in his rig ... @promomei equihash algoritm it not care much about memory speed

for 1060 with PL 73%, TL 80, GPU Clock +168 (1830 - 1880 Mhz), Mem Clock +600 (4404 mhz) it suppose to be something like this (mining btg):