ETH mining/Claymore - unstable card w/ video output

[Breesus]

Hey guys.

We finally managed to tweak our rig (3*RX 570 Nitro+, 2*RX 470 mining edition) with a stable 28.5MH/S and a total of ~650W power consumption (measured from the wall).

We've only got one issue left, and we had this issue for a while now.

There's one card where we have to plug in our monitor (DVI), and this card is completely unstable. It's hashrate jumps between 15MH/S and 25MH/S.

We've tried a couple of things

- changing the settings (clocks, voltage, etc...). We even went back to the stock bios/clock/memory/voltages, it doesn't matter. The problem doesn't come from those settings.
- plugging in our monitor on another card
- changing the risers

It doesn't matter, whatever card is used for the video output, its hashrate is always lower than the other. I believe it makes sense, since this card has to work "more" in order to generate the video output, however I've seen tons of videos where people have a constant hashrate on all their cards.

Two questions

- Is there a way to fix this issue and keep our monitor plugged in on one of our cards ?
- If not, since we're using AnyDesk, we don't really need that monitor. However whenever we've tried to work on the rig remotely, without having a monitor plugged in, the screen resolution was awful. Something like 800*600, or probably even less. We couldn't even launch Radeon Settings, and we couldn't change that on Windows because the screen size was just too small.

How do you guys do to fix this ? Would it make sense to plug our monitor on the motherboard (we got an h81 Pro BTC 2.0 and an old IntelG1820).

Thanks for your help !

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[Souran]

use the onboard graphics?
change it from the bios and use onboard graphics.

Its normal behaviour for the card to act funny if it is used for mining+video output

[yhoga45]

use the onboard graphics?
change it from the bios and use onboard graphics.

Its normal behaviour for the card to act funny if it is used for mining+video output

Agree with him. Just try with changing from pcie to onboard for monitor. Hopefully it can get 28mhs like the other card. Cause sometimes use GPU for their monitor while mining is make lower hashrate.

[leonix007]

How do you guys do to fix this ? Would it make sense to plug our monitor on the motherboard (we got an h81 Pro BTC 2.0 and an old IntelG1820).

Thanks for your help !

yes plugging onboard VGA to monitor make sense

- Is there a way to fix this issue and keep our monitor plugged in on one of our cards ?

If plugging to onboad VGA is not for you, I bet the simplest is not to use the monitor, and use remote software like Remote desktop,Team viewer, VNC

- If not, since we're using AnyDesk, we don't really need that monitor. However whenever we've tried to work on the rig remotely, without having a monitor plugged in, the screen resolution was awful. Something like 800*600, or probably even less. We couldn't even launch Radeon Settings, and we couldn't change that on Windows because the screen size was just too small.

Use the monitor when you do configurations on things like Radeon, if youre done then unplug and manage it remotely.

you can also use MSI AB to do clock settings if you want to, or other tools like overdrive utility tools