v3.0 vs v3.1

[testcy]

I would get a v3.1 instead of a v3.0 PSU if possible, but what difference would that make?

[seon123]

15 minutes ago, testcy said:

I would get a v3.1 instead of a v3.0 PSU if possible

Why?

 

15 minutes ago, testcy said:

but what difference would that make?

The requirement for the hold up time is less stringent, meaning PSUs are allowed to be less resilient to brownouts. Not sure why you'd want that. Check the section on "Timing, Housekeeping and Control - REQUIRED" in Intel's PSU design guide, and the revision history. 

https://edc.intel.com/content/www/us/en/design/ipla/software-development-platforms/client/platforms/alder-lake-desktop/atx-version-3-0-multi-rail-desktop-platform-power-supply-design-guide/2.1a/revision-history/

[thrasher_565]

3.1 has 12VHPWR redesigned pin prevent melting has shorter sensing pins and longer conductor terminals (12V and ground)

Hold-Up Time 12 down from 17

 

 

Edited September 28, 2025 by thrasher_565

[seon123]

16 minutes ago, thrasher_565 said:

3.1 has 12VHPWR redesigned pin prevent melting has shorter sensing pins

OP is asking about the differences for PSUs specifically. The change to the 12VHPWR/12V-2x6 connector is entirely on the graphics card. 

[thrasher_565]

10 minutes ago, seon123 said:

OP is asking about the differences for PSUs specifically. The change to the 12VHPWR/12V-2x6 connector is entirely on the graphics card. 

some psus have a 12VHPWR on the psu not just 8pins to 12VHPWR

 

https://www.coolermaster.com/en-global/guide-and-resources/what-is-atx-3-1/

Edited September 28, 2025 by thrasher_565

[seon123]

2 minutes ago, thrasher_565 said:

some psus have a 12VHPWR on the psu not just 8pins to 12VHPWR

 

https://www.coolermaster.com/en-global/guide-and-resources/what-is-atx-3-1/

12VHPWR and 12V 2x6 are standards for component side connectors. There is no single standard for PSU side connectors, so they could be doing whatever they feel like on the PSU side, regardless of what the component side connector is supposed to be like, and it'd still be considered ATX 3.0/3.1. 

[thrasher_565]

17 minutes ago, seon123 said:

12VHPWR and 12V 2x6 are standards for component side connectors. There is no single standard for PSU side connectors, so they could be doing whatever they feel like on the PSU side, regardless of what the component side connector is supposed to be like, and it'd still be considered ATX 3.0/3.1. 

why the f would they use a shitty non stander connector on the psu and the better one on the gpu? dose not make sense. 

 

just because of the "new" connector dose not mean it can still melt do to cable inconsistency.

 

and say cooler master could have there own 3.1 connector vs say msi. the gpu connector should be stander NVIDIA thow. that's why its recommend to use the included adapter but dose not mean they arnt problems is the adapter ether. 

 

imo i would just avoid it connector all together. there are new top gpus with 8pin.

there's talks of use 2 12pins but most likey that be for xx90/xx80 gpus but who knows

 

its also a problem on the gpu side too

 

 

 

 

so the problems are:

inconstancy in cable.

gpus pulling more power thow 1 cable:

 

Edited September 28, 2025 by thrasher_565

[Eigenvektor]

8 minutes ago, thrasher_565 said:

why the f would they use a shitty non stander connector on the psu and the better one on the gpu? dose not make sense.

Non-standard does not automatically mean shitty.

 

GPU side has to be standardized, so its compatible with any GPU (and vice versa)

 

On the PSU side the manufacturer can do whatever they want. It's their PSU and their cable.

[thrasher_565]

2 hours ago, Eigenvektor said:

Non-standard does not automatically mean shitty.

 

GPU side has to be standardized, so its compatible with any GPU (and vice versa)

 

On the PSU side the manufacturer can do whatever they want. It's their PSU and their cable.

https://www.techpowerup.com/319253/12v-2x6-h-standard-touted-to-safely-deliver-675-w

 

there the old 3.0 on gpu and the new 3.1 on gpu so unless you under solder the old one with a new one your stuck with the old one.

 

but its still melting do to things i pointed out. 

cable connectors moving in the connector and gpus pulling more power thow 1 wire. 

 

so there 2 standers on the gpu side connector. 

 

asus take on the connector.

there like 2 gpus that dose monitor the per wire but there costly

there also back connect gpus and mb and some point...that dose not use a cable.

but also vary expensive. 

12V-2x6 Adapter with Monitoring and Shunt Resistors

some gpus pu the 12 pin on top like the 9070 xt sapphire so there less strain on the 12 pin. there even a better one that dose not have a 90 like the 9070 xt sapphire (cant find it atm)

also there are 90 degree 12pin too 3.1. how good they are who knows.

 

wire view 2.0 prototype

 

 

there also gpus that use 3x 8pin like 3090 (3090 has vrm problems thow think the 3080 ti is fine thow) dont no about 3090 ti, 9070xt, 7900xtx, posably some fe. 

 

3x 8pin/2x 8pin gpus

Edited September 28, 2025 by thrasher_565

[freeagent]

I got my Vertex when they first came out, it is a 3.0 PSU. Now they are advertised as 3.1. They also are including the new 12V2X6 cable, and are offering the new cable to users of the older model.

[thrasher_565]

1 hour ago, freeagent said:

I got my Vertex when they first came out, it is a 3.0 PSU. Now they are advertised as 3.1. They also are including the new 12V2X6 cable, and are offering the new cable to users of the older model.

good point psus that use the non 12pin can incude a 3.1 cable or offer an upgrade. 

 

psus that use the 3.0 yout stuck with it or use a 3.1 8pin cable adapter and hope quality is good. 

 

but if the gpu uses 3.0 dont think it make a difference. other then the cable being seated all the way in. 

Edited September 28, 2025 by thrasher_565

[testcy]

5 minutes ago, thrasher_565 said:

good point psus that use the non 12pin can incude a 3.1 cable or offer an upgrade. 

 

psus that use the 3.0 yout stuck with it or use a 3.1 8pin cable adapter and hope quality is good. 

 

but if the gpu uses 3.0 dont think it make a difference. other then the cable being seated all the way in. 

So, it is better to get a v3.1 instead of a v3.0 after all?

[thrasher_565]

1 minute ago, testcy said:

So it is better to get a v3.1 instead of a v3.0 PSU if possible after all?

ya. if your going to use the 12pin.

you could use a 3.0 psu that uses 8pin to 3.1 too and hope the quality is good were the pins dont move. 

 

[seon123]

2 hours ago, thrasher_565 said:

why the f would they use a shitty non stander connector on the psu and the better one on the gpu? dose not make sense. 

There is no standard connector, so any connector is non-standard. 

 

2 hours ago, thrasher_565 said:

just because of the "new" connector dose not mean it can still melt do to cable inconsistency.

That has nothing to do with ATX 3.0 vs 3.1 on the PSU side. 

 

2 hours ago, thrasher_565 said:

and say cooler master could have there own 3.1 connector vs say msi. the gpu connector should be stander NVIDIA thow. that's why its recommend to use the included adapter but dose not mean they arnt problems is the adapter ether. 

I was the one telling you that 12V 2x6 is a component side standard. 

 

2 hours ago, thrasher_565 said:

imo i would just avoid it connector all together. there are new top gpus with 8pin.

there's talks of use 2 12pins but most likey that be for xx90/xx80 gpus but who knows

I would make some effort to avoid it too, but that has nothing to do with the differences on the PSU side between ATX 3.0 vs 3.1. 

 

1 hour ago, freeagent said:

They also are including the new 12V2X6 cable

There is no difference in the cable between 12VHPWR and 12V 2x6. The difference is entirely on the component side. 

 

1 hour ago, thrasher_565 said:

there the old 3.0 on gpu and the new 3.1 on gpu so unless you under solder the old one with a new one your stuck with the old one.

I have already told you that the change is on the graphics card, not on the cable. 

 

12 minutes ago, testcy said:

So, it is better to get a v3.1 instead of a v3.0 after all?

No. Unless you want a PSU that handles brownouts worse. You should also not be looking at what standards a PSU claims to support, but instead look at specific PSUs at specific wattages, and comparing those. Don't look at generalisations when you are able to look at specifics. 

[freeagent]

Just now, seon123 said:

There is no difference in the cable between 12VHPWR and 12V 2x6. The difference is entirely on the component side. 

 

Yeah I don't know.. its a nice cable so I just keep using it. And my little GPU can only hit 400w board power under very specific conditions, so I am not at all worried.

[thrasher_565]

30 minutes ago, seon123 said:

There is no standard connector, so any connector is non-standard. 

 

That has nothing to do with ATX 3.0 vs 3.1 on the PSU side. 

 

I was the one telling you that 12V 2x6 is a component side standard. 

 

I would make some effort to avoid it too, but that has nothing to do with the differences on the PSU side between ATX 3.0 vs 3.1. 

 

There is no difference in the cable between 12VHPWR and 12V 2x6. The difference is entirely on the component side. 

 

I have already told you that the change is on the graphics card, not on the cable. 

 

No. Unless you want a PSU that handles brownouts worse. You should also not be looking at what standards a PSU claims to support, but instead look at specific PSUs at specific wattages, and comparing those. Don't look at generalisations when you are able to look at specifics. 

oh guess your right about the the cable there no chages to it. but they did add h++ to i guess make it "compatable" but h+ also works. so just a rebrand.

 

and yes gpu sense pins are short same at the psu sense pins. 

 

only fixes the "not fully seated cable" problem

dose not fix the cable moving around in the connector or more amps thow 1 wire. 

 

also if you have a 3.0 gpu and 3.1 psu it only fixes the psu side not the gpu side.

 

so you need a 3.1 gpu and 3.1 psu. or 8pin to 3.1 + 3.1 gpu

 

so your taking the compays word of "it just works" when it comes to cable quality. and hope the cable dose not move in the connector... and if it dosent move then you still have the problem of more power thow 1 wire...

 

3 problems of wack a mole... 

 

looks like the 90 degree would help with wire moving in the cable connector. if done right. 

 

https://www.corsair.com/us/en/explorer/diy-builder/power-supply-units/h-vs-h-on-12v-2x6-12vhpwr-cables-what-does-it-mean/

 

looks like coolermaster did a upgrade to there cable connector. 

Edited September 28, 2025 by thrasher_565