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Question Power draw of an RTX 3060 Ti

Battousai01

Member
Oct 15, 2002
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Hi guys, will a 1U Flex 400watts Gold PSU be able to power up the Ryzen 5 3600 + RTX 3060 Ti? I have read that the power draw of the 3060 Ti is 200w. I am planning on building an ITX rig.
 

Stuka87

Diamond Member
Dec 10, 2010
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In short, no. Not for gaming anyway where the Founders Edition draws an average of 200W, TPU measured its peak gaming at 208W. The R5 3600 will pull 60-70W under load. Then you have to count in motherboard, ram, SSD, fans.

You should try and not load a PSU past 80% load, which would mean you only have 320W to deal with. The 400W supply may work fine, but it may also suffer a premature death, or the power may be dirty with lots of ripple as its load increases past its sweet spot.
 

Tup3x

Senior member
Dec 31, 2016
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Hi guys, will a 1U Flex 400watts Gold PSU be able to power up the Ryzen 5 3600 + RTX 3060 Ti? I have read that the power draw of the 3060 Ti is 200w. I am planning on building an ITX rig.
Lower end variants have 200W power limit but MSI GAMING X TRIO for example has higher. It can be adjusted up to 250W. 400W is really pushing it... It might be able to deliver more than 400W but I wouldn't risk it.
 

BFG10K

Lifer
Aug 14, 2000
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You should try and not load a PSU past 80% load, which would mean you only have 320W to deal with. The 400W supply may work fine, but it may also suffer a premature death, or the power may be dirty with lots of ripple as its load increases past its sweet spot.
That advice is a relic of the olden days when garbage like Deer was frequently used. If a PSU can't maintain its rated spec then it's a faulty product.

These days virtually every reputable PSU guarantees 100% load @ 40C ambient for its warranty lifetime. Many even guarantee 50C. To achieve this they typically build-in 10%-25% overspec'd capacity over the rating.

I don't know about his specific PSU so I'm just commenting in general.
 
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thecoolnessrune

Diamond Member
Jun 8, 2005
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@Battousai01 according to your other post about this PSU in the AliExpress case you're buying, the PSU you're getting is not 80 Plus Gold. The image says:

"Efficiency> 90%, the same with 80Plus golden performance."

The PSU is not 80+ Certified at all. They just claim it has efficiency similar to an 80+ Gold unit. Also note, the PSU is only good for 200-240V. I wouldn't be surprised if this unit doesn't even have PFC. Given the extreme difficulty in getting meaningful power output from the Flex-ATX form factor, I highly doubt 1STPlayer has cracked the code. The SilverStone Flex-ATX 500 Watt unit costs as much as 3 of these AliExpress Power Supplies, is actually 80 Plus Gold, not modular, and used every scrap of space to try and cram in the needed components, and still ended up with an overall mediocre unit due to voltage regulation and the extremely loud fan needed to keep the unit cool.
 
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Battousai01

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Oct 15, 2002
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Ok. Thanks guys for the replies. I have two flex PSUs here both Delta brands. I will post how they look, they are 500watts 80Plus Platinum and 400watts 80Plus Gold. Not sure if there are other reputable brands that offer 1U Flex PSUs.
 
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Battousai01

Member
Oct 15, 2002
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So this is the link to the ITX case with the PSU, they are advertising that this can power up an RTX 2070.

I have both the 400watts 80Plus Gold version and the 500watts 80Plus Platinum version, I am reluctant to use the 500watts as I did not purchase it brand-new.
 

thecoolnessrune

Diamond Member
Jun 8, 2005
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So this is the link to the ITX case with the PSU, they are advertising that this can power up an RTX 2070.

I have both the 400watts 80Plus Gold version and the 500watts 80Plus Platinum version, I am reluctant to use the 500watts as I did not purchase it brand-new.
RTX 30x0 series raised TDPs in nearly every bracket. The RTX 3060 Ti has a 200W TDP vs. a RTX 2070's 175W. A 3060 Ti and a 3600 in boost would be around 300+ Watts when taking everything into account, so it should be just fine on a 400 Watt Power Supply *if* the Power Supply is of good quality.
 
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Battousai01

Member
Oct 15, 2002
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What Flex PSU can you recommend that is from a well established brand? I have checked Seasonic but it seems they do not offer it anymore. I checked Silverstone and they have a 500watts Flex PSU, here is the link from Amazon.

However, the Flex PSU I have is a Delta brand and they say that this is a good brand.
 

thecoolnessrune

Diamond Member
Jun 8, 2005
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Enhance 7660B 600W (with a Noctua Fan Mod + not using above 500 watts)
Silverstone FX500 500W
FSP FlexGURU PRO 500W

All the above will be loud, but are relatively quiet if you can keep them getting cool, open air (through ducting or other means). If they're recycling the heat off your GPU or CPU, they'll sound like a jet engine, and easily be the loudest thing in your PC. That's the curse of needing to use a 40mm screaming fan to move air.
 

Battousai01

Member
Oct 15, 2002
150
1
81
Enhance 7660B 600W (with a Noctua Fan Mod + not using above 500 watts)
Silverstone FX500 500W
FSP FlexGURU PRO 500W

All the above will be loud, but are relatively quiet if you can keep them getting cool, open air (through ducting or other means). If they're recycling the heat off your GPU or CPU, they'll sound like a jet engine, and easily be the loudest thing in your PC. That's the curse of needing to use a 40mm screaming fan to move air.
Thanks for the suggestion, let me look into these brands. Previously, my only go-to PSU brand is Seasonic but they do not have Flex PSU. I have read about Delta and someone from the forums said that they are one of those top PSU manufacturers.
 

thecoolnessrune

Diamond Member
Jun 8, 2005
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Thanks for the suggestion, let me look into these brands. Previously, my only go-to PSU brand is Seasonic but they do not have Flex PSU. I have read about Delta and someone from the forums said that they are one of those top PSU manufacturers.
Delta makes a lot of power supplies mostly for the Industrial, OEM, and Server markets. Their power supplies are normally very good, though it's worth noting that in many of their segments, they don't care about quiet, they care about uptime in 50C ambients in industrial settings. So a lot of their 1U sized units are built with fans that will ramp up towards 15,000 RPM, and can be annoyingly loud.
 

JoeRambo

Senior member
Jun 13, 2013
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One thing to be aware of with Ampere gen is that they are very transient heavy. Due to being FP32 unit loaded so much, when shader heavy code suddenly comes in with card clocked high on high volts, a huge power transient is generated and card draws big amps for first tens of ms before power limits kick in drop clocks/voltages.

That transient then trips overcurrent protection on decent PSUs or blows the planet up on more dubious ones.
For example:

https://www.reddit.com/r/nvidia/comments/k6axtc
Whole saga of PSU problems with 30XX series.

From my personal experience: i have my 3090 card undervolted and it takes like max 300 watts during compute, gaming, benchmarking but i have seen spikes up to 400w in monitoring, on startup of compute code, despite card having a max of 0.818V and 1830mhz to play with.

This generation is no joke on power supplies, if anything overspec by some 50w to avoid trouble.
 
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Stuka87

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Dec 10, 2010
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Reviews showed stock 3090's (no undervolting) to hit 600W+ in transients and were causing PSU's to shutoff due to their over current protection.

The whole "capacitor gate" was actually because of this, not because of the capacitors. nVidia put out a BIOS change that addressed it to an extent. But definately something to be aware of on any RTX 30x0 card.
 

BFG10K

Lifer
Aug 14, 2000
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Whole saga of PSU problems with 30XX series.
I'm starting to think Seasonic isn''t very good anymore. I had their fanless 520W titanium which failed after a year and took my CPU + motherboard with it. PSUs are supposed to protect components on the DC side.

Now with their comments saying to use Corsair, that's rather telling given those Corsair units don't use a Seasonic platform.
 

Stuka87

Diamond Member
Dec 10, 2010
5,322
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I'm starting to think Seasonic isn''t very good anymore. I had their fanless 520W titanium which failed after a year and took my CPU + motherboard with it. PSUs are supposed to protect components on the DC side.

Now with their comments saying to use Corsair, that's rather telling given those Corsair units don't use a Seasonic platform.
Some corsair PSU's are seasonic. The RM series is not seasonic, but the AX series is seasonic.

EDIT: But on that note, I think seasonic's OCP actually working is a good thing, even if it is maybe a bit too sensitive.
 

MrTeal

Diamond Member
Dec 7, 2003
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I wouldn't say it's indicative of a Seasonic quality issue if their OCP is kicking in at the prescribed limit. One thing I found with X-850 and X-1000 back when I was designing bitcoin mining boards is that while the PSU itself would happily run over its rated wattage, their per-plug OCP was actually quite sensitive. Not sure how the Focus line compares, but it wouldn't surprise me if their OCP was also fairly aggressive.
If the the cards are pulling 600W+ at times and also paired with 9900k's and 10900k's from those reddit threads, a 750W PSU really isn't enough.
 

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