Using -150mV rom mod on Sapphire R9 Nano
Results: Clocks:800core/300mem, 657watts, 2.67Amps, 132.5 MHs, temps=59-61c, fans=19% (mining ETH mode, CDM 4.5)
Current system: Win8.1, Cat-16.5.3, ASrock H81-BTC, 1840 Celeron, 8GB RAM, 120Gb SSD, USB3 Powered Risers, EVGA1600
Notes:
1. Big saving$ on PSU - now can replace it with smaller PSU.
2. Cranking up to core clock to 1040mhz/300Mhz memclock, gets to about 176MHs but wattage and amps will increase too 1348w and 5.4amps. Temps will also rise to 76-77c and fans 49%
Next project 2nd attempt on -175mV rom mod.
It worked well on 1 x Nano (see my previous post)
When I got all 6 on same rom mod, I had issues bringing up safe mode to apply DDU. I may have given up too soon. Will try and get this going after I see how stable the -150mV rom mod runs after a few hours mining ETH only with latest CDM 4.5
UPDATE:
1. Looks like -200mV is not for me.... after flashing, power off, DDU etc.... installation of of Catalyst 15.12 or latest 16.x.x hung halfway at 12%. Rebooted cold or reset, blank screen.
2. well.... the -175mV rom did not go well too.... after reflashing, DDU, install of Catalyst latest drivers... Launching CDM goes silent after identifying the Nanos. Tried qtminer, also no luck.
3. Decided that -150mV is probably best mod for now until Heliox gives a few more ideas on how to fix issues above.