PSUs exploding during water loop test.

[Hardcore Games]

The ATX12VO was too not well considered given the growing power consumption in processors and graphics devices

Devices long ago reached the reticle limit so chiplet designs overcome foundry limitations. More and more L3 cache comes at a cost.

 

[jonnyGURU]

The ATX12VO was too not well considered given the growing power consumption in processors and graphics devices

Devices long ago reached the reticle limit so chiplet designs overcome foundry limitations. More and more L3 cache comes at a cost.

Higher power consumption is exactly WHY ATX12VO is better. There's more 12V leads on the main connector (24-pin only has 2 vs. 3), more room on the board for additional connectors (like the 6-pin PCIe they're putting on boards for slot power) and a load sense pin on the PSU that tells the board what the load is so the board can load balance. New builds almost always use M.2, which makes the requirement for a SATA/PATA power and data cables obsolete.

So, what part of ATX12VO makes it not well for growing power consumption?

 

[Hardcore Games]

Even with dual M.2 slots the power is minimal compared to the CPU

Graphics cards are the power pig in machines today

 

[Vayra86]

Inb4 the first gamer PSU with IP67 rating

 

[Frick]

Inb4 the first gamer PSU with IP67 rating

"Introducing the Corsair CUM-SEAL" but I'm not sure there are games on the horizon gamers are that hyped up about

 

[Onasi]

Yeah, I know this isn’t what the thread is about, but my mind immediately went to this ridiculous thing:

Hydro PTM+

FSP’s latest PSU - Hydro PTM+ is a unique, patented liquid-cooled PSU developed to meet the industry’s highest safety standards. Created exclusively in collaboration with Bitspower, a renowned maker of liquid cooling solutions for PC. This is the world's first mass-produced liquid-cooled PSU...

www.fsplifestyle.com

Judging by comments above, guess I wasn’t the only one.

 

[Hardcore Games]

One thing I see is that GaN PSUs are still rather scarce in the market

 

[eidairaman1]

"Introducing the Corsair CUM-SEAL" but I'm not sure there are games on the horizon gamers are that hyped up about

Put a rubber on it

 

[jonnyGURU]

One thing I see is that GaN PSUs are still rather scarce in the market

Too hard to work with. SiC can do just as good a job for less money and less effort.

 

[Wirko]

So, what part of ATX12VO makes it not well for growing power consumption?

In my opinion, the missing part: adjustable voltage. 12 V would be the voltage always present on a lower-power line, to be fed directly to 75 W to PCIe slots and SATA connectors. For a separate high-power line, the PSU and the consumer would either stay at 12 V or negotiate a higher voltage (and maybe current limit too).

 

[jonnyGURU]

In my opinion, the missing part: adjustable voltage. 12 V would be the voltage always present on a lower-power line, to be fed directly to 75 W to PCIe slots and SATA connectors. For a separate high-power line, the PSU and the consumer would either stay at 12 V or negotiate a higher voltage (and maybe current limit too).

That's not how it works.

You're moving larger D2D from inside the PSU to dedicated, appropriately sized, thus more efficient, D2D regulators on the motherboard. Your motherboard already has D2D that regulates lower voltages. What changes is you're regulating from 12V which is lower current and therefore more efficient in that respect as well.