Two different GPUs in system - massive slowdowns

[Dragonheart]

I am using two different GPUs in my system, one for general use, and the other for mining only. However, just recently the performance of everything has degraded horribly. I cannot even watch a video on the computer unless I remove the second card. I have read online that there shouldn't be a problem, but there is. Any ideas?

 

Note: the cards are a 1070 and a 950 I had laying around. 

[emosun]

what psu

what temps

what voltages

[Dragonheart]

Just now, emosun said:

what psu

what temps

what voltages

EVGA 650 watt GQ

950 stays around 50 degrees, 1070 can reach around 70-75 when gaming

Stock voltages  

[emosun]

1 minute ago, Dragonheart said:

Stock voltages  

Should have said what voltage is it putting out under load with a multimeter

[Dragonheart]

1 minute ago, emosun said:

Should have said what voltage is it putting out under load with a multimeter

950: 1212 mv

1070: 1012 mv

 

this helps?

[emosun]

3 minutes ago, Dragonheart said:

950: 1212 mv

1070: 1012 mv

 

this helps?

no I mean stick a multimeter on the power lead on the psu and see what it's actually making under load. 

while the psu SHOULD be enough it's best to check that it's actually working properly. if the machine works fine with only one gpu rather than two a power problem could be to blame.

Are these slowdowns happen while you're trying to use the machine and mine at the same time?

[Dragonheart]

Just now, emosun said:

no I mean stick a multimeter on the power lead on the psu and see what it's actually making under load. 

while the psu SHOULD be enough it's best to check that it's actually working properly. if the machine works fine with only one gpu rather than two a power problem could be to blame.

Are these slowdowns happen while you're trying to use the machine and mine at the same time?

The problem persists even when both of the GPUs are at idle. 

[emosun]

you can try a system restore then to a point when it was working to see if it's software related.

[NoxiousOdor]

You could also uninstall your display drivers and then reinstall them. They may have issues id they are trying to run on different drivers

[Dragonheart]

1 minute ago, emosun said:

you can try a system restore then to a point when it was working to see if it's software related.

I already reinstalled first the driver and then Windows. I can try again I guess. 

[Dragonheart]

Just now, WhisperingKnickers said:

You could also uninstall your display drivers and then reinstall them. They may have issues id they are trying to run on different drivers

Will try (again), thanks. 

[oahbpn]

Perhaps, there's something with the second pcie slot? Did you try placing the 1070 in the second pcie slot?