Please help: Blinking red power LEDs above Strix 3090 OC PCIe power connectors

[oTToBawd]

I'm experiencing the same issue with my Rog Strix RTX 3090 OC. I have a 1000w Corsair HX1000i and am using 3 separate 8 pin connector cables (no daisy chains). I haven't pinpointed a trigger for the lights, but when it occurs I shut down and flick the switch off on my PSU until the red power LED's on the GPU turn off, then I fire everything back up.

[tgaDave]

Having the same issue with my 3070 rog strix oc card, when i turn on my computer one of the two power leds will start flashing. To make it stop i unplug the computer from the wall socket and they will fade away, plug it back in and start and they are no longer flashing. Tested to run some 3dmark and some more of those heavy programs to see if the card struggled at heavy load or if the leds would start flashing again, they did not start to flash and the card did not struggle. Only when i turn on the computer it will happen.
"Can be if it initially do not detect enough power, so if it is not on when you restart the computer, then it should not be anything to worry about."
That was the answer i got from Asus.

This is good to know! Thanks for sharing.

[TZero]

There is a new 3090 BIOS (DEC-14-20) promising to resolve this.

https://rog.asus.com/br/graphics-car...desk_download/

[oTToBawd]

Has anyone tested the Bios V2 released on 2020/12/14? Curious as to if there are any serious issues to report...

[rgarodnick]

Yep. Worked for me and solved my red lights issue

EDIT: Thought it did. It's back.

[W0D1N]

I updated to V2 and did some motherboard bios tweaks and the led problem seems to be gone for me. The things i changed in my Asus mobo bios was power phasing.

Power phasing from CPU: Auto to Optimized
Power Phasing from Memory: Extreme to Optimized
Power Phasing VRM: Auto to Optimized

I think if you try to set all Power Phasing to "Optimized" (Asus optimized) It should handle the boot a bit for the GPU? If you have a different mobo maybe figure out how its called there.

Although our PSU's should have enough capacity, maybe the peak on turning on the PC is to sensitive for the GPU?

[rgarodnick]

I updated to V2 and did some motherboard bios tweaks and the led problem seems to be gone for me. The things i changed in my Asus mobo bios was power phasing.

Power phasing from CPU: Auto to Optimized
Power Phasing from Memory: Extreme to Optimized
Power Phasing VRM: Auto to Optimized

I think if you try to set all Power Phasing to "Optimized" (Asus optimized) It should handle the boot a bit for the GPU? If you have a different mobo maybe figure out how its called there.

Although our PSU's should have enough capacity, maybe the peak on turning on the PC is to sensitive for the GPU?

Thanks. The only option my asus maximus hero xii had of the three got mentioned was power phasing for cpu, so I adjusted it to optimized. I'm not sure why I don't have the other two settings.

With each test, I only got red lights if sending the PC to shutdown from windows...and once it turned off I got the red lights. But,if I cycle psu power, I don't get red lights on boot. Strange.

Any idea why I don't have the other two settings you mentioned? Am I missing something somewhere?

[KMagic]

Just thought I would add that I have not had this issue at all with my 3090 in the 2 weeks Ive had it. Im running an MSI Z390 MEG ACE mobo and an EVGA 1000w 80plus Gold PSU. All 3 PCIE cables come straight from the PSU. I didn't have the issue before or after the bios update.

[rgarodnick]

Swapped my Seasonic Prime 1300 with a Corsair HX1200i. Problem completely disappeared.

[pazzoide1976]

I too have the same problem with my asus rtx 3090 strix oc and I have a corsair rm850 power supply.
Every so often during the start-up phase the red LEDs on the power connector 1 and 3 light up.
I have never logged into gaming and the card is stable.
Monitoring with GPUZ the voltages in windows are always ok.
In my opinion the card has too sensitive a mechanism regarding voltage detection.
However, the new TweakII Gpu has been released which in the release notes says:
New function: Power detect switch on ROG STRIX RTX 30 and ROG STRIX RX 6000 cards.
The indicator on new ROG STRIX cards will flash when a serious voltage drop is detected. We suggest you to check your PSU when you see the flashing, but you can also turnoff the indicator through this new function in GPU Tweak II.
So they most likely made this fix as many users have complained.

Greetings