There is no doubt that the performance of the NVIDIA GeForce RTX 4090 is very powerful, but there have been more than a dozen cases of 12VHPWR power supply burnouts since its launch. This has also caused many people to worry about whether it burns out because it consumes too much power, causing the power cord to be unbearable. Users who bought the RTX 4090 are also worried about whether it will be the next one. Recently, a well-known foreign hardware YouTube channel conducted detailed actual measurements and deductions on this matter, and finally concluded that the main cause of the burnout incident is “improper insertion of the power cord.” If the user has inserted it correctly, then burnout will not occur.
Foreign actual measurement videos pointed out that the main reason for the NVIDIA RTX 4090 12VHPWR power supply to burn out is that “the user did not plug it in correctly”
Earlier, GamersNexus, a foreign hardware YouTube channel with 1.78 million subscribers, uploaded a 30-minute video discussing the NVIDIA RTX 4090 12VHPWR power supply burnout incident. In the video, they researched and experimented in many aspects, including what kind of wires did not work and what caused the 12VHPWR It took weeks to complete the burnout, share open and responsible reporting, test cable termination holes, etc. It is highly recommended for those who want to fully understand this incident.
GamersNexus tested many theories and wires, and found that the burnout of 12VHPWR has nothing to do with the wires, nor does it have anything to do with how many 12V power supplies are connected. The main reason is improper insertion by the user. GamersNexus tested that only when the wires are inserted incorrectly, with some gaps and at a certain angle, will the burnout occur:
GamersNexus also keeps showing what kind of situation, in fact, the power cord is not fully inserted, there is still a little gap:
If it is not plugged in correctly, you may see the power cord connector melting when you pull it out:
In addition, the power cord should not be too bent. Foreign debris during the manufacturing process or when the power cord is inserted may also cause this phenomenon, but the chance is basically very low:
Corsair PSU expert Jon Gerow (Johnguru) has previously expressed a similar conclusion. After testing, he believes that any 12VHPWR power cables are likely to burn out because they are difficult to plug in. However, for some unknown reason, this original article has been deleted (Source: Wccftech）：
Although the reason should have nothing to do with the poor quality of the NVIDIA RTX 4090 12VHPWR power supply cable and the excessive power consumption, some users believe that even so, NVIDIA should have a way to avoid it. Like this oleost mentioned: “I am not a cable expert, but regarding improper insertion, if a single signal pin is short and has no contact, it does not allow current to pass. It should be easy to avoid this situation.” GamersNexus also replied: “Yes, as far as we know, they are studying and correcting it”:
So in summary, as long as the user plugs in and uses the 12VHPWR power cord correctly, there is basically no need to worry about burnout.
Full video:
Source: KOCPC Chinese