Quote from: ldw-com on August 17, 2016, 07:45:53 AM

Quote from: Dum3 on August 17, 2016, 07:38:12 AM

Thanks,will try your rom when have little time available.

Problem is:

1.To reduce power-draw need to lower VDDC.
2.To reduce VDDC need to reduce VCCIO(the memory voltage in Wattman,but that is not the memory voltage,that is the memory controller voltage)
3.To reduce VCCIO the memory frequency will drop ,for 2170-2200 i found 5 cards need 0.92 .
4.0.92 VCCIO will limit the VDDC shown in Gpu-z to 0.9187-0.9250 resulting in 75-80 power draw reported in Gpu-z. ( at 1020 core )

This is all on stock rom which i run 1020 core / 2200 memory and resulting in 27 mh/s on all of my 5 cards . Would be curious the gains tighter timings make,can you test in this conditions too ?

Very happy with my results for RX480 however if additional 2-3 Mh/s can be gained in similar power consumption that would be absolutely awesome Cheesy

1. True
2. First time i hear that :p and it's VDDCI

You're right about the memory controller though.
3. Depends.. not every card is the same Wink

4. Interesting, going to test that out..

At this moment, over 1hr rock solid at 31Mh+

Stats on pool can be seen here: Link

Surely,try to lower VDDC to 0.90 with memory controller voltage stuck at 1 V ,you will see that the vddc reported in gpu-z is 1 V and not 0.90 that you set Cheesy

4 of my cards will do 1020 core at 0.90 VDDC,one needs 0.925 Cheesy

Please test 1020 / 2200 with better memory timings , as i said on stock rom this is 27 mh/s