[SOLVED] EVGA RTX 3080 XC3 Ultra + 1200W PSU

[Cptken]

Hello everybody,

I've had an EVGA RTX 3080 Ultra since 19.09.2020. The card is going well and I haven't had any crashes so far. The card boosts continuously in games between 1935-1980 MHz. I run the card with an Enermax 1200W Platinum power supply, an MSI X570 motherboard and a Ryzen 3900X. Under full load, the mainboard software shows that the 12V rail fluctuates between 11.8 and 11.9V.
Is that normal?

Best regards

Cptken

 

[Solidjake]

A quick search shows that Enermax PSU's aren't the best. I would try a different (quality) power supply and see if the issue is corrected. You can go down to 1000w if you'd like

 

[drivinfast247]

He could easily go down to a quality 850w unit.

 

[King_V]

I would suggest using the first link in my signature as a guide.

And, I agree with @drivinfast247 - 850W from a high quality model would be plenty.

 

[Archaic59]

Hello everybody,

I've had an EVGA RTX 3080 Ultra since 19.09.2020. The card is going well and I haven't had any crashes so far. The card boosts continuously in games between 1935-1980 MHz. I run the card with an Enermax 1200W Platinum power supply, an MSI X570 motherboard and a Ryzen 3900X. Under full load, the mainboard software shows that the 12V rail fluctuates between 11.8 and 11.9V.
Is that normal?

Best regards

Cptken

What is the model name of your Enermax PSU?
How old is it?

Voltage tolerances:
+12 volt should be +- 5% . That's 11.4 to 12.6. It's fine.

Scroll to page 22
https://web.aub.edu.lb/pub/docs/atx_201.pdf

 

[Cptken]

What is the model name of your Enermax PSU?
How old is it?

Voltage tolerances:
+12 volt should be +- 5% . That's 11.4 to 12.6. It's fine.

Scroll to page 22
https://web.aub.edu.lb/pub/docs/atx_201.pdf

It is brand new.

Enermax Platimax D.F 1200W

In idle-mode = 12,00V - 12,08V

Full load = 11,9V @ the two 8-Pin Power Concectors @ RTX 3080

No Problems with crashes.

Boost in games @ 1920-1980MHZ.

 

[drivinfast247]

It is brand new.

Enermax Platimax D.F 1200W

In idle-mode = 12,00V - 12,08V

Full load = 11,9V @ the two 8-Pin Power Concectors @ RTX 3080

No Problems with crashes.

Boost in games @ 1920-1980MHZ.

I'd say you're good to go.

 

[Archaic59]

It is brand new.

Enermax Platimax D.F 1200W

In idle-mode = 12,00V - 12,08V

Full load = 11,9V @ the two 8-Pin Power Concectors @ RTX 3080

No Problems with crashes.

Boost in games @ 1920-1980MHZ.

It's a decent PSU and your specs are within range. It's fine. No worries.

 

[Cptken]

I have now switched to a Corsair 1200w and there are absolutely no more fluctuations on the 12V rail.