GPU power indicator

[Uday singh]

Hello everyone,

whenever i press power button of my pc, my GPU power indicator just above the PCIe cable blinks once and everything is working just fine. I just wanted to know is it normal or not ?

i am using RTX 3060 with Corsair Cx750m 80 plus bronze PSU.

 

 

[Alex Atkin UK]

29 minutes ago, Uday singh said:

Hello everyone,

whenever i press power button of my pc, my GPU power indicator just above the PCIe cable blinks once and everything is working just fine. I just wanted to know is it normal or not ?

i am using RTX 3060 with Corsair Cx750m 80 plus bronze PSU.

 

 

Its probably due to the transient load of the PC starting up pulling the 12V line down low for a second and the PSU not keeping up.  If its not causing any problems, I wouldn't worry about it.

[Uday singh]

7 hours ago, Alex Atkin UK said:

Its probably due to the transient load of the PC starting up pulling the 12V line down low for a second and the PSU not keeping up.  If its not causing any problems, I wouldn't worry about it.

You said that PSU not keeping up ! can you please elaborate this ? Is there a problem with my PSU as i just purchased new one may be i can ask for a replacement. Previously i was using cooler master’s 550 v2 bronze plus and never saw that blink on my GPU.

 

Thank you for your reply

[PriitM]

5 hours ago, Uday singh said:

You said that PSU not keeping up ! can you please elaborate this ? Is there a problem with my PSU as i just purchased new one may be i can ask for a replacement. Previously i was using cooler master’s 550 v2 bronze plus and never saw that blink on my GPU.

 

Thank you for your reply

The buzzword is transient spikes, that trip overload protections on power supplies. Rated 300W GPU can pull 2-3x that for a split second, occasionaly causing current protection to trip. Sounds like your combo is working just on the edge of it without tripping OCP. meaning under actual load you will be fine for 99% of the time. Potentially, you can encounter OCP shutting down pc maybe a handful of times during YEARS of use. Depending if you have a brown out or for what ever reason (perhaps a driver update) can cause current (amps draw) to trip OCP. OCP tripping is not going to hurt your components, its exactly why its there in the first place. If you get persistent shut downs via tripping the OCP, you got bigger problems.

Personally, I have a 275W GPU with a 550W PSU. Only experienced OCP trip ONCE during the 7 years ive had the PC. Plugged directly to the wall outlet

[Alex Atkin UK]

8 hours ago, Uday singh said:

You said that PSU not keeping up ! can you please elaborate this ? Is there a problem with my PSU as i just purchased new one may be i can ask for a replacement. Previously i was using cooler master’s 550 v2 bronze plus and never saw that blink on my GPU.

 

Thank you for your reply

I meant that during power up the PSU has a lot to deal with, so the 12V line drooping a little for a brief second is not necessarily a cause for concern, if everything is working correctly.  I would only worry about it if you actually experience stability problems.

 

It could even be as simple as you never noticed it before and its always done it.  A brief blink is unlikely to mean anything.

 

2 hours ago, PriitM said:

The buzzword is transient spikes, that trip overload protections on power supplies.

Personally, I have a 275W GPU with a 550W PSU. Only experienced OCP trip ONCE during the 7 years ive had the PC. Plugged directly to the wall outlet

This has nothing to do with any of that.  When you press the power button for a very very brief moment not all voltages are necessarily stable.  Its probably blinking for that brief moment where the PCIe connector is registering as connected but not quite up to stable voltage yet, or the card is starting to initialise but the PCIe connectors aren't fully powered yet. 

 

Were talking a brief blink, that simply means there was a delay somewhere but it all happened quite enough to not prevent booting so odds are its perfectly normal.

[PriitM]

51 minutes ago, Alex Atkin UK said:

I meant that during power up the PSU has a lot to deal with, so the 12V line drooping a little for a brief second is not necessarily a cause for concern, if everything is working correctly.  I would only worry about it if you actually experience stability problems.

 

It could even be as simple as you never noticed it before and its always done it.  A brief blink is unlikely to mean anything.

 

This has nothing to do with any of that.  When you press the power button for a very very brief moment not all voltages are necessarily stable.  Its probably blinking for that brief moment where the PCIe connector is registering as connected but not quite up to stable voltage yet, or the card is starting to initialise but the PCIe connectors aren't fully powered yet. 

 

Were talking a brief blink, that simply means there was a delay somewhere but it all happened quite enough to not prevent booting so odds are its perfectly normal.

Then I was mistaken what that light meant.

[Alex Atkin UK]

23 minutes ago, PriitM said:

Then I was mistaken what that light meant.

I only recently became aware of them, there are small LEDs next to the PCIe power connectors on the GPU that light up if there is a problem with power at that connector.  A brief flash at power on makes sense as power takes a few ms or so to stabalise and the PCIe slot itself may remain powered when the PC is in standby, so the rest of the card starts up slightly faster than the PCIe 12V connectors stabalise.

 

Likewise there or reports of them lighting up or flashing when the PC is off, because the PSU capacitors are still supplying power to the PCIe connectors but at a low voltage.

[Uday singh]

1 hour ago, Alex Atkin UK said:

I meant that during power up the PSU has a lot to deal with, so the 12V line drooping a little for a brief second is not necessarily a cause for concern, if everything is working correctly.  I would only worry about it if you actually experience stability problems.

 

It could even be as simple as you never noticed it before and its always done it.  A brief blink is unlikely to mean anything.

 

This has nothing to do with any of that.  When you press the power button for a very very brief moment not all voltages are necessarily stable.  Its probably blinking for that brief moment where the PCIe connector is registering as connected but not quite up to stable voltage yet, or the card is starting to initialise but the PCIe connectors aren't fully powered yet. 

 

Were talking a brief blink, that simply means there was a delay somewhere but it all happened quite enough to not prevent booting so odds are its perfectly normal.

Got it now ! Thank you so much for your valuable time and your support