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

[tgaDave]

All I could find is that these blinking LEDs indicate 'abnormal power'. My PSU is a Seasonic Prime Platinum 1000W, the pcie cables are three separate (not daisy chained) cables, all properly plugged in at both ends. After being shut down for a while, when started back up, it's a reasonable likelihood the red LEDs above each of the power connectors start blinking forever. If I turn off the system, then switch it off at the wall or at the PSU then drain it (hold the power button on the frontpanel until all the system is fully drained and all LEDs on mobo etc are off), then turn it back on, the blinking LEDs are usually gone.

Any ideas? The PSU is about 2 years old, and the 3090 is obviously brand new, strix OC model.

Wondering if I should approach seasonic for a replacement, or if the LEDs can be triggered by something else, perhaps erroneously even?

[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

[KMagic]

what sort of voltage do you guys with this issue see on the 8 pin plugs in question ? You can view this in something like GPUZ. What does your 12v rail look like? Is it solid, does it sag? Would be good to know these extra details. If I saw the pins light up, which are meant to signal a voltage issue on the plugs, I would start monitoring my 12v rail hard, and the voltage at the plugs. Would be good to know if for example a 12v sag is occurring

[pazzoide1976]

I monitor with gpuz I always have 12.1 volts on all three power cables while under load.
In fact I have never had red led problems while playing.
I'm just having trouble with the red LEDs, randomly, when I boot the PC.

[pazzoide1976]

I don't know if the problem can be solved via bios.
In my opinion these vga have a mechanism to check the voltage delivered too sensitive.
As workaround in the new GPUTWEAK II they gave the possibility to turn off the red LEDs (see release notes):
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.
The feature is power detect in TWEAK GPU.
However, I advise you to hear the asus support so that maybe more people complain before we fix it via bios.

[djk1507]

pazzoide1976 wrote:
I don't know if the problem can be solved via bios.
In my opinion these vga have a mechanism to check the voltage delivered too sensitive.
As workaround in the new GPUTWEAK II they gave the possibility to turn off the red LEDs (see release notes):
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.
The feature is power detect in TWEAK GPU.
However, I advise you to hear the asus support so that maybe more people complain before we fix it via bios.

Thanks, but If I used GPUTweak II to turn off leds will they stay off if I uninstall gputweak II as well?

Thanks for replying at least. Cheers

EDIT: found it. Will uninstall gputweak II and see if the led's stay off

[pazzoide1976]

The setting can be found here:
https://i.imgur.com/6ePVBn1.jpg
In my opinion, to turn off the LEDs GPU TWEAK II must be installed but I'm not sure.

[KMagic]

Someone with this issue needs to run another 8 pin from the power supply, but don't plug it into anything. Put a multimeter on it and check what the voltage is reading during system post and boot. Im curious if voltage is indeed going out of bounds during boot on those affected or if its just a bug. Checking the voltage on an 8 pin from the moment power button is hit would at least tell you if the voltage is indeed dipping or spiking. If the voltage checks out stable on all the 8 pins (You could cycle pins from card to multi meter with 1 extra plug connected so you can test them all, but if the voltage checks out fine then you can ignore the led's, as it would clearly be a bug.

[simsim86]

KMagic wrote:
Someone with this issue needs to run another 8 pin from the power supply, but don't plug it into anything. Put a multimeter on it and check what the voltage is reading during system post and boot. Im curious if voltage is indeed going out of bounds during boot on those affected or if its just a bug. Checking the voltage on an 8 pin from the moment power button is hit would at least tell you if the voltage is indeed dipping or spiking. If the voltage checks out stable on all the 8 pins (You could cycle pins from card to multi meter with 1 extra plug connected so you can test them all, but if the voltage checks out fine then you can ignore the led's, as it would clearly be a bug.

it has nothing to do with the psu, a lot of people with many different psus have it. its the card. i have it right no and my voltages are fine.

[KMagic]

simsim86 wrote:
it has nothing to do with the psu, a lot of people with many different psus have it. its the card. i have it right no and my voltages are fine.

Your voltages are fine in windows, according to software monitoring yes. I bet you have no clue of what is occurring with the voltage rails at the precise moment the video card is throwing the warning. You have to test the voltage at the moment of the warning occurring, and in every single case reported here it is right after pressing the power button. As a computer is initially powering on, the voltage can behave differently than it does once the system is fully running and the voltage rails stabilize out. I suspect a very brief voltage sag or spike is occurring right after the power button is pressed. Until someone actually tests it though you will never know. This would be easy to test if anyone here has any electrical knowledge and a multi meter. I would be happy to test it myself but I have never had this issue on my strix 3090, which suggests that my voltage rails are stable through post and boot. Most folks will be. Voltage sagging just a tad right at post wouldnt mean anything is wrong or faulty either. I suspect one way asus could address the issue is to put a delay on when the card starts to monitor for irregularities, so that it will only start monitoring the voltage after a few seconds, likely getting the systems affected past these initial little sags/spikes. I wouldnt want to disable the feature though, as its a good safety feature.

[Kiriakos-GR]

Actual 12V rail voltage testing at boot this requiring a quality multimeter at 400$ or EUR, this including Min-Max log (fast speed detection).
Most Kids out there do not own one, but they might request assistance from a professional at electronics repairs, he has all required tools.