Monday, September 25th 2023
The 12V-2x6 Connectors Appear to Handle Full Load While Partially Inserted
Hardware Busters put the new 12V-2x6 connector—which is part of the ATX v3.1 standard—to the test to see how it compares to the 12VHPWR connector and the results are very encouraging. Not only does the 12V-2x6 cables appear to run at much cooler temperature, even at a 55 Ampere load, although the setup that was tested had only been running at this load for around 30 minutes. Even so, the cable and connector was only reading a surface temperature of around 46 degrees, which is well within specs.
However, to show that the new connector wouldn't suffer the catastrophic failure that some 12VHPWR connectors have suffered due to not having been mated properly with the connector on the graphics card, the same test was also performed with the connector partially inserted. Based on the test equipment shown in the video, there was no variation in Voltage, Amps or temperature. The specific cable was produced by a company in China called Linewell that apparently makes the PSU cables for ASUS among others. The secret behind the improved connector is a combination of new pins inside the connector and the shorter auxiliary pins which means that a poorly inserted connector won't allow the GPU to request higher power levels from the PSU. The new pins inside of the connectors appear to be solving the thermal issues as well, so hopefully we won't be reading about any more melted connectors in the future. See the video after the break for more details.
Source:
Hardware Busters
However, to show that the new connector wouldn't suffer the catastrophic failure that some 12VHPWR connectors have suffered due to not having been mated properly with the connector on the graphics card, the same test was also performed with the connector partially inserted. Based on the test equipment shown in the video, there was no variation in Voltage, Amps or temperature. The specific cable was produced by a company in China called Linewell that apparently makes the PSU cables for ASUS among others. The secret behind the improved connector is a combination of new pins inside the connector and the shorter auxiliary pins which means that a poorly inserted connector won't allow the GPU to request higher power levels from the PSU. The new pins inside of the connectors appear to be solving the thermal issues as well, so hopefully we won't be reading about any more melted connectors in the future. See the video after the break for more details.
58 Comments on The 12V-2x6 Connectors Appear to Handle Full Load While Partially Inserted
cdrdv2-public.intel.com/336521/336521_Rev2p1.pdf
And it seems they changed the specs again with reference to the female pins, the 3 dimple design can be used.
The PSU and the GPU should be using the new male connectors.
He's demonstrated that there is still a problem and it's not fully backwards compatible.
If they are using the new connector (the black one on that test board) then it's evident that there are still problems with the 12V-2x6 spec if they are able to pull full power with a partial inserted connector.
The PSU they are using there (on the left in the video), is it ATX 3.1, if not, that could be the issue as well.
Also more details here.
hwbusters.com/psus/atx-v3-1-pcie-cem-5-1-are-official/
[URL='https://www.techpowerup.com/314066/the-12v-2x6-connectors-appear-to-handle-full-load-while-partially-inserted']The 12V-2x6 Connectors Appear to Handle Full Load While Partially Inserted[/URL]
Just before it burst into flames and burns your house down.Shouldn't the revision avoid partiall insertion in the first place?
2 rows of 6 pins as per the RTX 30x0 FE cards (12VHPWR first gen connector), all that was missing was the sense pins, also, the pins used in those connectors (the patch cable that came with the RTX 3080 FE/ 90 FE) used the NTK female pins in the 12VHPWR connector, the same with the RTX 3090 Ti I have here, the connector on the patch cable has NTK female pins in it.
Partially connected connector should tell the PSU (ATX 3.1 specs) not to supply power - sense pins (0+1) open = 0 watts, or in the case of ATX 3.0 specs, limit the power to the lowest state of 150 watts.
This is NOT a real world behaviour.
You've clearly never been involved in making anything if you don't understand this.