Problem: Low hash rate on GeForce GTX 1070 graphics card

[princeex87]

I just build my first mining rig, with the following specs:
Intel Pentium I3-7100 MSI Z270 gaming m5 Crucial 4GB DDR3L 1600MHz 6x Gigabyte GeForce GTX 1070 WINDFORCE OC 8GB GDDR5 Corsair RM1000x power supply 6x Risers 240 GB SSD Running Windows 10 Home 64 bit
Connecting them all together gives me 30 Mh/s on two graphic cards and 25 Mh/s on the other Four, i'm mining through Claymore Dual Mine but only mine Ethereum
What i did so far:

• Updated BIOS to the latest version
  In PCI subsystem Setting: PEG 0 and PEG 1 set to Gen1
  Above 4G Decoding set to Enabled
  OS settings: disabled Windows 7, enabled Windows 10
  Installed the latest drivers for the graphics card (388.43) and motherboard
  Adjusted Windows Settings for best performance and set Virutal memory to 16400 Mb
  Tried different mining software but still same results
  Overclocking with MSI Afterburner but the most i've got the cards to go up to without crashing is 31Mh/s and 26Mh/s
  Tried connecting different cards to different slots on the motherboard, but still nothing changed

Any ideas on what the problem might be? i'm trying to run them all at 30 Mh/s Thanks for the help!

[toptek]

In PCI subsystem Setting: PEG 0 and PEG 1 set to Gen1  you may have to set that to auto i couldn't get a Linux OS to run on a 4 card rig till i set it from gen 1 to auto .

MSI Motherboards
For ALL GPUs

    Under "Windows OS Configuration" -> set WINDOWS 7 INSTALLATION MODE to DISABLE and set FAST BOOT to DISABLE.
    Under "Integrated Peripherals" -> set HD AUDIO CONTROLLER to DISABLE.

For RX Series GPUs (in addition to ALL GPUs section)

    Advanced Mode (F7) -> Settings -> Advanced Settings -> PCI-E Subsystem Settings -> set 4G DECODE to ENABLE.
    set PEG1 to "GEN 2"
    set PEG2 to "GEN 2"
    set PCI Latency to "96 Cycles"

For HD and R9 Series GPUs (in addition to ALL GPUs section)

    Advanced Mode (F7) -> Settings -> Advanced Settings -> PCI-E Subsystem Settings -> set 4G DECODE to DISABLE.
    set PEG1 to "GEN 1"
    set PEG2 to "GEN 1"
    set PCI Latency to "96 Cycles"

from here http://ethosdistro.com/kb/#many-gpus

[Mike68]

maybe 4 of your gpu are hynix memory the other 2 are micron. 

[princeex87]

In PCI subsystem Setting: PEG 0 and PEG 1 set to Gen1  you may have to set that to auto i couldn't get a Linux OS to run on a 4 card rig till i set it from gen 1 to auto .

MSI Motherboards
For ALL GPUs

    Under "Windows OS Configuration" -> set WINDOWS 7 INSTALLATION MODE to DISABLE and set FAST BOOT to DISABLE.
    Under "Integrated Peripherals" -> set HD AUDIO CONTROLLER to DISABLE.

For RX Series GPUs (in addition to ALL GPUs section)

    Advanced Mode (F7) -> Settings -> Advanced Settings -> PCI-E Subsystem Settings -> set 4G DECODE to ENABLE.
    set PEG1 to "GEN 2"
    set PEG2 to "GEN 2"
    set PCI Latency to "96 Cycles"

For HD and R9 Series GPUs (in addition to ALL GPUs section)

    Advanced Mode (F7) -> Settings -> Advanced Settings -> PCI-E Subsystem Settings -> set 4G DECODE to DISABLE.
    set PEG1 to "GEN 1"
    set PEG2 to "GEN 1"
    set PCI Latency to "96 Cycles"

from here http://ethosdistro.com/kb/#many-gpus

thx for your quick reply,
tried it already and it didnt worked,
and I checked the gpu memory using Techpower gpu and they are all micron.

[m1n1ngP4d4w4n]

Windows 10 home, i think that's your problem, you need pro or enterprise with anniversary or creators update, if im not mistaken.

Also what is your OC and POwerlevel you run the card @ ? with  1000w PSU you put 6 cards that have a tdp of 180w, so that makes it above the PSU power limit if you use them @ 100% tdp, if you look @ afterburner you see the power graph can you look at each GPU when mining and seeing if the power curve doesn't fall ?