Having problem overclocking or flashing the bios of Sapphire Radeon NITRO+ RX 580 8GB GDDR5 PCI-E Dual HDMI / DVI-D / Dual DP w/ backplate (UEFI)

I purchase 6x RX 580 expecting the I would be able to get approximately 29 M/HS per card but I’m only getting 22.5 M/HS from stock. I have tried to use MSI afterburner to overclock it but I haven’t being able to get something higher then 22 M/HS in some case It would drop to 18 M/HS.

Right here I’m only running 3 GPU because I waiting on the BIOSTAR TB85 LGA 1150 Intel B85 Motherboard to arrive.
I don’t know what I’m doing wrong and I don’t understand why I’m not able to get more hashing power.

This is the hardware that I current have.
3x GPU

1x SanDisk SSD PLUS 120GB Solid State Drive

G.SKILL Ripjaws X Series 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600

1x Intel Core i7-4790K Devil’s Canyon Quad-Core 4.0 GHz LGA 1150 88W

6-Pack PCIe VER 006 PCI-E 16x to 1x Powered Riser Adapter Card w/ 60cm USB 3.0 Extension Cable & MOLEX to SATA Power Cable - GPU Riser Adapter - Ethereum Mining ETH

For the driver I am using: Win10-64Bit-Radeon-Software Crimson-16.11.5- Nov 25 + Crimson-ReLive-17.5.1- May 4

Any help would be highly appreciated.

how long did you let this run before the screen shot? unless you have a temp control set in your startup config, this thing should be well above 72c ?

Also check out @cryptomined video and post.. this might fix your problem

it being running for 3 days already but, I want to get more hashing power and I can't find a way to overclock it. The temp in the room that I'm running it is approximately 18c.

You have something set either in your config or .bat file wrong. Other than my home system I have all of mine in a 16.66c server room, and without a power or temp limit settings they would all redline 82c+ (except the water cooled).

did you mod the bio's of the gpu?
Something is outside of stock, either the bio's on the gpu or config/start settings is limiting it or, if the bio's has not been modified then post your config/startup file

Well for a start let's get that memory overclocked and you will start to see improvements,if you want 31 then you need to flash bios so memory strapped,you are on a zcash forum so I suggest you checkout ether forum where all this is explained