Why can't I push my system harder? I have an open air case, H81 BTC v.2 motherboard, celeron processor, 8 gb ram, (6) XFX RX480 8GB Black Edition Cards, 2 power supplies. I have modded my bios copying the 1750 timing strap to the 2000. The max I can get per card is 27 mb/s for a total of 162 mb/s. There is a big difference in profit per year at 162 mb/s vs. 180 mb/s. I am using Claymore ver. 9.3 on Windows 10. The AMD Driver version is 16.12.2. Whenever I move my core clock past 1150 or the memory clock past 1950 the miner crashes within the hour. Any suggestions?

Thanks,

Brian