Undervolting black screen

[Wisehollows]

G'day all,

 

I've been undervolting my MSI Air Boost Vega 56 and got to around 1000mV on State 6 and 7 with Core Clock of around 1540mhz. I tried to increase the clock by a bit but it ended up crashing. However, for some reason whenever it crashes I get a black screen when I reboot. The computer works I can heard all the programs loading but the Monitor gets no signal. The solution I found was to unplug the GPU and DDU the drivers then reinstall them. This takes a while and I dunno it this is normal and was wonder if their is better solution. 

 

Cheers!

 

PC

6600K

Gigabyte Z170 HD3

MSI Air Boost Vega 56 

Corsair RM850I

Windows 10 64bit

BIOS F22

[Windows7ge]

I don't believe this is the same issue as overclocking with MSI After Burner where if you saved your OC and the system crashed it'd load the failed OC at startup and crash again but you can try inserting an alternative GPU. If the issue is the OC then a different GPU will run at stock speed when you start the computer and get into Windows. From there you can disable whatever profiles were set to load and reinsert the original card.

 

That's an old trick. Might work, might not.

[Wisehollows]

14 minutes ago, Windows7ge said:

I don't believe this is the same issue as overclocking with MSI After Burner where if you saved your OC and the system crashed it'd load the failed OC at startup and crash again but you can try inserting an alternative GPU. If the issue is the OC then a different GPU will run at stock speed when you start the computer and get into Windows. From there you can disable whatever profiles were set to load and reinsert the original card.

 

That's an old trick. Might work, might not.

Yeah that probably will work the main issue is just difficult to remove the card from the motherboard. Is there a way to use the iGPU without taking out the GPU because when I plug the on board to the monitor with the GPU in it, I still get no signal

[Man]

1 hour ago, Wisehollows said:

I've been undervolting my MSI Air Boost Vega 56 and got to around 1000mV on State 6 and 7 with Core Clock of around 1540mhz.

1,000mV downvolt sounds a bit... Extreme.

 

Way too extreme, as a matter of fact! It's impossible. Are you sure it's 1,000mV and not 100mV?

 

In any case, try booting the Windows in safe-mode. This way; Windows will load-up without the GPU driver (I believe) hence you can easily re-install the drivers and/or reset MSI Afterburner settings. 

 

Hope it helps.

[Wisehollows]

Just now, Wisehollows said:

Yeah that probably will work the main issue is just difficult to remove the card from the motherboard. Is there a way to use the iGPU without taking out the GPU because when I plug the on board to the monitor with the GPU in it, I still get no signal

Sorry I forgot to mention I was using AMD Wattman

[Wisehollows]

 

7 minutes ago, Man said:

1,000mV downvolt sounds a bit... Extreme.

 

Way too extreme, as a matter of fact! It's impossible. Are you sure it's 1,000mV and not 100mV?

 

In any case, try booting the Windows in safe-mode. This way; Windows will load-up without the GPU driver (I believe) hence you can easily re-install the drivers and/or reset MSI Afterburner settings. 

 

Hope it helps.

Yeah I did undervolt State 6 and 7 to 1.00V. It seemed stable but the moment I increase the core clock by a little it crashed. The issue I don't get signal when I boot thus I can't see anything. I'm not sure how to get into safe mode like this

 

The only solution I know right now to deal with no signal is to remove the gpu and DDU it and reinstall it all

[Man]

2 minutes ago, Wisehollows said:

Yeah I did undervolt State 6 and 7 to 1.00V.

Oh... I see. 

Sorry, my bad, mate! I thought you undervolted the GPU 'by' 1,000mV, which is next to impossible!

7 minutes ago, Wisehollows said:

Sorry I forgot to mention I was using AMD Wattman

Now that's a bit odd!

The thing is; tweaking voltage in Wattman shouldn't affect the booting process. Besides, you only changed State 6 and 7, and GPUs tend stay at lower power states while the system is booting. So in theory, your system 'should' boot-up just fine, even if you've "really" messed up the 6 and 7 states, which you clearly haven't.

I'm by no means an expert but... I think your GPU is dead, mate. Put it into another system and see if it runs.

Best of luck. 

[Windows7ge]

17 minutes ago, Wisehollows said:

Yeah that probably will work the main issue is just difficult to remove the card from the motherboard. Is there a way to use the iGPU without taking out the GPU because when I plug the on board to the monitor with the GPU in it, I still get no signal

Unplugging the GPU 6|6/6+2|6+2/6+2 power cables should suffice. It won't register the GPU as being connected without dedicated power to it.

[Wisehollows]

Just now, Man said:

Oh... I see. 

Sorry, my bad, mate! I thought you undervolted the GPU 'by' 1,000mV, which is next to impossible!

Now that's a bit odd!

The thing is; tweaking voltage in Wattman shouldn't affect the booting process. Besides, you only changed State 6 and 7, and GPUs tend stay at lower power states while the system is booting. So in theory, your system 'should' boot-up just fine, even if you've "really" messed up the 6 and 7 states, which you clearly haven't.

I'm by no means an expert but... I think your GPU is dead, mate. Put it into another system and see if it runs.

Best of luck. 

The GPU works as I can just remove it, DDU the drivers and reinstall it and it works fine. The issue is it quite difficult (more annoying) to do this every time my PC crashes due to the overclock or undervolt. Not sure if this is normal but I guess I can still work with this.