Octane crashing my computer Tweet

[Anim8me2]

As an aside... where did you score the 4090... I've been looking.

There seems to be plenty of stock here in Australia, so it's not a problem if you aren't picky about the exact model.

I am guessing that despite my having a PSU rated for 1600w I am not getting full output. Would an additional PSU just for the GFX card be a common solution?

If you don't have access to extra parts for testing, you can also try using MSI afterburner to lower the power limit on both cards. Set it to about 70-80%. You lose very little performance in Octane (1-3%). I've done this in the past to keep things cooler and more power efficient too.

One last thought... Which motherboard are you using? I don't have any experience with TR motherboards, but some motherboards have extra 4/8-pin EPS connections and/or additional 6/8-pin PCIe connections for extra/stable power. Make sure you've connected all of these to your PSU, just to rule this out.

I'm not sure who I would order from in AUS.
Which MSI setting are you referring to? Under "Voltage" or "Fan - Power Limit"?

I have an Gigabyte Aorus Extreme Mobo and all the correct power connections are there.

[funk]

I'm not sure who I would order from in AUS.

Well I didn't mean you should be ordering from Australia (unless you actually live there too? then check https://au.pcpartpicker.com/products/vi ... sort=price)

Which MSI setting are you referring to? Under "Voltage" or "Fan - Power Limit"?

- click the arrow (1) to select the card (2)
- set the power limit (3)
- click apply (4)

If you find settings that work, you can enable "start with windows" in the settings > general tab (5). This will reload your settings when windows starts.

[Anim8me2]

As an aside... where did you score the 4090... I've been looking.

you can also try using MSI afterburner to lower the power limit on both cards. Set it to about 70-80%. You lose very little performance in Octane (1-3%). I've done this in the past to keep things cooler and more power efficient too.

I've lowered both cards by 20% and it seems to be more stable. I can hear the cards ramp up (oddly after the render is complete) but they never tip over into shut down. Thanks for the tip.