ATX 3.0 VS ATX 3.1
ATX 3.0 VS ATX 3.1
The main reason I prefer ATX 3.1 over 3.0 is this:
ATX 3.0 12VHPWR
ATX 3.1 12V-2×6
Does this matter if I purchase an AMD Radeon RX 7900 XTX? From what I know, only Nvidia GPUs had problems with power connectors.
I’m thinking about buying the be quiet! Straight Power 12 or the be quiet! Power Zone 2
The Straight Power 12 uses ATX 3.0 whereas the Power Zone 2 has ATX 3.1, but I’m worried that the newer ATX 3.1 Power Zone 2 could face the same issues as the Dark Power Pro 13, such as fan noise and explosions. Anyone have any advice on this?
Does this matter for you when purchasing an AMD Radeon RX 7900 XTX? No. The main concern is whether the power supply has the required PCIe connectors for the GPU without depending on a daisychain setup, especially if you plan to use AMD's cards. Going forward, Nvidia's cards will use the 12V-2x6 connectors. You should be okay with an ATX3.0 PSU.
Nvidia selected the 12VHPWR and 12 2x6 standards (compatible together), while AMD hasn’t adopted them, meaning you’d use standard PCIe power cables. It’s hard to say much about the latest PSUs—either take the chance or wait for reviews. I prefer well-reviewed and familiar PSUs when possible.
Straight Power = FSP
Dark Power = Channel Well Technologies
Pure Power = HEC/Compucase
All these options can change at any time.
Based on the design, I don’t believe the Power Zone 2 is made by CWT, so they shouldn’t face issues with the Dark Power line. But I might be mistaken if it’s a completely new platform.
I don’t know what daisychain means.
To check if your PSU has the right PCIe connectors for your GPU, you should look at the GPU’s specification page, see which cables it uses, and compare those with the PSU’s specs to ensure compatibility.
If you switch to an AMD Radeon RX 7900 XTX OC instead of a non-OC model, will this affect your PSU choice because the connectors differ? You should confirm that both the PSU and GPU cables fit together properly.
Regarding the RX 9900 XTX, are there any leaks or changes to the 12v-2x6 standard when it launches? What advantages might this adaptation offer compared to the regular PCIe power connection?
What are the pros and cons of making that change?
In another discussion someone suggested choosing an ATX 3.1 PSU for future-proofing.
This seems reasonable, though the quiet power zone 2 appears to be a brand-new item with no reviews or reports about issues.
Purchasing it now might lead to disappointment.
The straight power 12 uses ATX 3.0 and has fewer negative reports.
I’m uncertain which option is better.
Cybenetics has given its assessment in December, claiming a level of detail surpassing 80+, reportedly.
Cybenetics Test - please remain calm! Power Zone 2 1000W
Cybenetics Test
www.cybenetics.com
They mention it is produced by HEC.
Regarding your other inquiries, it's typical to check the GPU and PSU connectors to confirm compatibility.
To observe daisy chaining, examine provided images of the cables.
Alternatively, you can deduce the setup if there are too many modular ports on the PSU side compared to power connectors—this is normal but should be minimized when feasible.
If you can choose, it's better to run two cables rather than one with multiple connectors, even if it means leaving some connectors unused.
How the reputation from HEC/Compucase and FSP looks. Assuming CWT isn’t getting much attention, given the numerous negative reviews online about the dark power pro 13 fan noise and explosions. I checked the cable specifications for both the straight power 12 and power zone 2—they’re almost the same. There’s no advantage in using ATX 3.1 over 3.0. Oh wow... just had to copy-paste what you mentioned into translation, now I understand what a daisy chain means. Should I connect my GPU with separate cables instead of one? Yes, exactly what you said in the next sentence. So the connectors nearby are just dead ends that don’t affect the rest of the cable or the voltage passing through it?
The same concept applies effectively. ATX 3.0 and 3.1 correspond to PCIe 5.0 and 5.1 power connectors.
PCI-SIG establishes the standard, while ATX serves as the power standard for computers.