Quote from: anticlimax on November 22, 2016, 02:31:37 PM

Quote from: maxmad_x on November 21, 2016, 11:34:16 PM

Quote from: buitanthanh1979 on September 30, 2016, 07:50:43 AM

I use 3 Vga
GPU0 4GB Sapphire R9 290x
GPU2 2GB Asus R9 270
GPU2 4GB MSI RX 480 X Gaming

First run (no mod) GPU2 : 24Mh+ : Core clock 1275, Mem Clock 2000

Second run (modded) GPU2 : 30Mh : Same clocks, so: 1175, 2080

Greetings!

Is your card Hynix of Samsung or some other memory.
Unfortunately I have hynix. (Just bought those 6 cards) with 1500 strap I cant use anything more than 1950/1000 for memory. Any help will be great. Cheers

I know of people running the 1500 strap timings copied over via Polaris editor and getting 175sols.
Are you changing the memory individually or are all six GPUs linked when you change the frequency?
I'd look at the asic quality of my cards and see if one of the cards is holding back the rest.
1950 memory is still great, I honestly only seen a 5% improvement at 2200 vs 2000 on my Msi 480 8gb.
What were your results prior to the strap?

My results were "after extreme OC and PCI-e burning wattage" 23 - 24 MH/s. But after strapping with 1500 , at 1950 I get 28.1 currently I am at 1965 with 1500 strap which gives 28.3 but it still needs a lot more volts to run stable which leads to 100W at GPU-z and 140W at the outlet.
Asic qualities are all in the same zone. 72 being lowest and 89 being the highest. Even the 89 ASIC fails at 1990 with 1500 strap unless I pour 130W at GPU-z.

I have 6 RX480s reference (different MSI,ASUS...etc) but all draw 75W GPUz and are rock solid at 29.8MH with BOysie rom but I edited it to 1125/2115 no overvolting was necessary over Boysie. They run extremely cool even with blower fan.

There is not much difference in the ZCASH mining. It needs higher core clocks than memory. I go for 1266/1950 at a bit higher voltages for zcash. It goves me 172h/s/card avg.

Btw your GPUz wattage at chip looks extremely high. 145W is too high. Can you install wattool to check what voltages are currently operating? I guess you can use some undervolting to get it to 120s or even 110