Hi all,

I have a rig with 5 Sapphire RX580 Pulse 8GB cards running. 2 have Samsung memory, 3 have Micron memory.

Without BIOS mod, but memory clock 2100 and core clock 1150 and undervolting (via Claymore), I get the following hash rates:

Samsung: 25-26 Mh/s
Micron: 28-29 Mh/s

Total hash rate around 138 Mh/s. Not too bad I guess, considering the fact I didn't mod the BIOS yet.

The cards draw 115 watt each.

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How much would I be able to improve the above by modding the memory timings?

Can I just edit straps and flash and expect it to work? Any risk that I run into the 'BIOS signature check' issue (in other words, given my cards and drivers, should I run the pixel clock patcher)? Note: I use Crimson 17.11.1 drivers.

Thx!