Question Question about 12v power adapter

[unholyAngel]

Hi all, please see spec below of initial details.

CPI: Ryzen 5700x3d
Current GPU: Zotac 3070
Power Supply: 750w EVGA B5 80 bronze

I am planning on getting a Zotac 4070 TI Super SOLID as there's one on sale for a very VERY good price, My PSU has 2x8 pin out ports that split into 2 - 2x8 pin in ports. the 4070 I'm getting has a 3x8 pin to 12v connector. Will the 2x8 out be fine for the card or should i get a better PSU?

 

[Aeacus]

Will the 2x8 out be fine for the card or should i get a better PSU?

Just connecting 2x 8-pin PCI-E power connectors to the 12VHPWR adapter means that you limit your GPU to 300W.
Connecting all 3x 8-pin PCI-E power connectors to the 12VHPWR adapter means up to 450W for GPU, which for 285W RTX 4070 Ti would be needed. Especially due to the transient power spikes, where GPU can spike to ~400W for ~100ms.

So, better to get new PSU, since the PSU you currently have (EVGA B5-series) is mediocre/low quality PSU. Not outright low quality but not mediocre quality either, instead between the two. While for any PC with dedicated GPU, good quality PSU would be minimum. Great quality PSU would be better.

For new PSU, start looking here: https://hwbusters.com/best_picks/best-atxv3-pcie5-ready-psus-picks-hardware-busters/3/

 

[beyondlogic]

Hi all, please see spec below of initial details.

CPI: Ryzen 5700x3d
Current GPU: Zotac 3070
Power Supply: 750w EVGA B5 80 bronze

I am planning on getting a Zotac 4070 TI Super SOLID as there's one on sale for a very VERY good price, My PSU has 2x8 pin out ports that split into 2 - 2x8 pin in ports. the 4070 I'm getting has a 3x8 pin to 12v connector. Will the 2x8 out be fine for the card or should i get a better PSU?

i would also recomend a good psu.

asus but great wall is the manufacturer

https://pcpartpicker.com/product/Gr...ully-modular-atx-power-supply-90ye00s3-b0na00

The ASUS TUF Gaming 850W Gold PSU Review: Tough But Fair

www.anandtech.com

 

[Aeacus]

asus but great wall is the manufacturer

https://uk.pcpartpicker.com/product...ully-modular-atx-power-supply-90ye00s3-b0na00

i wonder, you linked UK version of pcpp, how do you know that OP is from UK? 🤔

Tom's Hardware forums are international forums and we have people here from all over the world. Mostly from USA but also from Europe, Asia (India), Australia and even Brazil.
So, providing location specific store links, without knowing where OP is located, doesn't help.

 

[beyondlogic]

i wonder, you linked UK version of pcpp, how do you know that OP is from UK? 🤔

Tom's Hardware forums are international forums and we have people here from all over the world. Mostly from USA but also from Europe, Asia (India), Australia and even Brazil.
So, providing location specific store links, without knowing where OP is located, doesn't help.

wasnt the intention to send a specific link but pc partpicker has a toggle at the top that its easily changed for region its default is usa. from previous posts was usa. which was what i intended to send.

changed.

 

[unholyAngel]

wasnt the intention to send a specific link but pc partpicker has a toggle at the top that its easily changed for region its default is usa. from previous posts was usa. which was what i intended to send.

changed.

Thanks for the suggestion Im not for UK or US but rather South Africa so my options are quite limited. I will have a look and try to find the same if not similar PSU.

Apricate the feed back.

 

[unholyAngel]

Just connecting 2x 8-pin PCI-E power connectors to the 12VHPWR adapter means that you limit your GPU to 300W.
Connecting all 3x 8-pin PCI-E power connectors to the 12VHPWR adapter means up to 450W for GPU, which for 285W RTX 4070 Ti would be needed. Especially due to the transient power spikes, where GPU can spike to ~400W for ~100ms.

So, better to get new PSU, since the PSU you currently have (EVGA B5-series) is mediocre/low quality PSU. Not outright low quality but not mediocre quality either, instead between the two. While for any PC with dedicated GPU, good quality PSU would be minimum. Great quality PSU would be better.

For new PSU, start looking here: https://hwbusters.com/best_picks/best-atxv3-pcie5-ready-psus-picks-hardware-busters/3/

Thanks the list was quite helpful since I'm quite imitated where I'm from.