Asus Explains why you should re-evaluate your PSU for 3080 (or your GPU)

EastCoastHandle · 12 Sep 2020 at 01:31

23:02

Asus is including a led indicator on top of the power connector if the voltage of the rail drops to low (any transients not just lower power/wattage). Or if the PSU wasn't able to deliver power fast enough as a result of fast load changes. Which can cause a drop in needed voltage. This isn't just about not having enough wattage alone. Which causes blackscreens, crashes, etc. And it's not limited to just the 3080 GPU either. IMO, this should be mandatory on all GPUs as a warning indicator IMO.

As he indicates if you've been running your PSU hard (IE: running the PSU at it's peak performance rating for example) the voltage regulation may no longer be adequate for the fast load changes that are required (for most GPUs...again this isn't limited to just the 3080).

JonnyG1982 · 12 Sep 2020 at 01:57

Instead of Asus just buy an alternate brand, save 10% and use that money to buy a suitable psu. Jobs a goodin (i didnt watch video, bed time) x

EastCoastHandle · 12 Sep 2020 at 02:27

JonnyG1982 said:
Instead of Asus just buy an alternate brand, save 10% and use that money to buy a suitable psu. Jobs a goodin (i didnt watch video, bed time) x

This isn't about the brand of video card. All they are doing is providing you an LED indicator to tell you that your PSU is the issue.

JohnG7 · 12 Sep 2020 at 02:29

Until they Sync it to an LED on there ROG Thor/Strix PSU lines!

Grim5 · 12 Sep 2020 at 02:34

Not just wattage

entry level psu even entry 750w model may not have 3x 8 pin connectors and you will need to upgrade - this is happening to me, my psu has the wattage but does not support 3 cables to the gpu

JohnG7 · 12 Sep 2020 at 02:41

I do not think it matters where I plug in correct any of those 1-10 sockets can be used for CPU or PCI-E?

Grim5 · 12 Sep 2020 at 03:08

Yeah that's a big psu, you've got 10 x 8 pin connectors I've only got 3 (one for cpu and 2 for gpu). That looks like it's a 1200w/1600w tip of the line psu from Corsair

JohnG7 · 12 Sep 2020 at 03:33

It is the AX1660i

In your situation what do you do if your Mobo CPU_Aux has 1x8 + 1x4 or 2x 8pin?

random_matt · 12 Sep 2020 at 04:01

Grim5 said:
Not just wattage

entry level psu even entry 750w model may not have 3x 8 pin connectors and you will need to upgrade - this is happening to me, my psu has the wattage but does not support 3 cables to the gpu

Just thought of that, LOL. I cannot run all models.

Shinzra · 12 Sep 2020 at 12:03

Dont mean to hijack a thread, but rather than posting a new topic. Seems a bunch of you know fair amount of PSU details.

I am looking at getting a 3080, and have purchased a new PSU for my system, (Used to have a 650w corsair). Ordered a Corsair TX850, Would this PSU be fine for both partner and founders edition cards?

Cheers

Grim5 · 12 Sep 2020 at 12:10

Should be ok if you stick to cards with just 2 x 8 pin connectors like the founders or partner cards with stock tdp

signal11th · 12 Sep 2020 at 13:29

Shinzra said:
Dont mean to hijack a thread, but rather than posting a new topic. Seems a bunch of you know fair amount of PSU details.

I am looking at getting a 3080, and have purchased a new PSU for my system, (Used to have a 650w corsair). Ordered a Corsair TX850, Would this PSU be fine for both partner and founders edition cards?

Cheers

To be honest unless you are ramping your system up a lot via OC the 650 would probably still be ok as my Corsair 650 has 2x 8 pin and that's like 3 years old.

Aretak · 12 Sep 2020 at 14:13

Shinzra said:
Dont mean to hijack a thread, but rather than posting a new topic. Seems a bunch of you know fair amount of PSU details.

I am looking at getting a 3080, and have purchased a new PSU for my system, (Used to have a 650w corsair). Ordered a Corsair TX850, Would this PSU be fine for both partner and founders edition cards?

Cheers

More than fine.

OZONE · 12 Sep 2020 at 14:35

I guess this makes sense. I suppose I'll look for a beefier PSU - 750W should be enough I think.

VIPER258 · 12 Sep 2020 at 14:46

Asus should also look to re-evaluate the cost of their GPU's.

Chuk_Chuk · 12 Sep 2020 at 15:01

I came across this article that investigates indepth into the power consumption of graphics cards. I would recommending reading through it.
https://www.igorslab.de/en/graphics...cause-and-correct-power-supply-measurement/4/

In the test he had a 5700xt (TDP 225W) that could consume upto 350W of power in short bursts and Igor speculated that this could shutdown a PSU if it was unable to cope with this load.

He also has graphs for the Vega 64, 1080ti and 2080ti on the second page, showing these card's peak loads during testing.

For anyone who is planning on cutting it close with their PSUs wattage for these new cards, just be careful.

Scougar · 12 Sep 2020 at 15:19

650W for the RTX 3070. That's just nuts. Really need to see the amp demands. I have 500w gold rated 40+ amps on the 12v, so very curious.

At least the name ampere now makes sense lol.

EastCoastHandle · 12 Sep 2020 at 18:53

Scougar said:
650W for the RTX 3070. That's just nuts. Really need to see the amp demands. I have 500w gold rated 40+ amps on the 12v, so very curious.

At least the name ampere now makes sense lol.

I said the same thing. And to be honest I wouldn't go lower then 850 Platinum rated, reputable PSU.

rchads89 · 12 Sep 2020 at 19:02

Grim5 said:
Not just wattage

entry level psu even entry 750w model may not have 3x 8 pin connectors and you will need to upgrade - this is happening to me, my psu has the wattage but does not support 3 cables to the gpu

Damn never checked mine!! I will try and check soon unless @Sparx can tell me lol

Sparx · 12 Sep 2020 at 19:34

rchads89 said:
Damn never checked mine!! I will try and check soon unless @Sparx can tell me lol

It's fine the RM750x has 4 connectors on PSU lol - you use 1 of them for the CPU 8pin anyway. Which still leaves 3 connectors free, technically allowing up to 6x 8pins.