MSI Sets Out To Stop GPU Melting With New Power Supply

4090 GPU Connector Melting Crisis, Courtesy of NorthridgeFix YouTube Channel

Anyone familiar with computer components knows what the GPU is, but for clarity, the GPU is the Graphics Processing Unit. Where our GPU melting terror began is the introduction of the 16-pin 12-volt high-power connector in 2022, first seen on the NVIDIA RTX 4090. Wccftech made a guided timeline of just how bad things had gotten since then. According to them, NVIDIA tried to find ways to stop the problem, but nothing worked as new reports kept coming in every week.

Building off their timeline, they looked at the RTX 5090, showcased at the CES in 2025, being stocked in retail locations by the end of Jan. Not even 2 weeks later, the first incident saw an RTX 5090 Founders Edition connector melt. Not necessarily surprised that the issue happened, the rate at which it occurred seemed more frequent. The total graphics power (TGP) was increased from 450 watts on the RTX 4090 to a staggering 575 watts on the RTX 5090, meaning the power increased without addressing the previous model’s problem of GPU melting.

It seems even the attempt to move to a new configuration, a 12V-2×6 connector, was unable to save the cards from becoming damaged. As reports kept rolling in, some reports started saying that connectors on the GPU as well as the Power Supply Unit (PSU) began melting. The MSI yellow tip connector was, according to Wccftech’s guide, pushing itself out, most likely why it failed. MSI had released two yellow-ended connectors: an adapter-based one that shipped with GPUs and one that shipped with their PSUs. The PSUs had low-to-no failure rates, but the adapters saw a propensity for the melting problem.

What Makes Them Melt?

Simply put, based on MSI’s blog, the powerful GPUs granted gamers and content creators incredible graphics horsepower, but it included something the manufacturers may not have anticipated. A vast consumption of power through their 12-volt 16-pin connector, which was reaching its limit. The build typically will function as expected, except when an imbalance arises through a connector or a sudden surge of power lasts too long. The heat caused by this results in the connector melting as the pull heats up.

Even their blog makes reference to reports over the last few years about melting and/or burning connectors, adding that MSI’s dual-color connectors helped to alleviate some issues in reference to loose connections. The goal now is to focus on factors that cause overheating in an effort to save the connectors and GPUs. Detection of the problem isn’t straightforward, oftentimes hidden or silent until the user notices a crash. At that point, the hardware could already be damaged. Keeping a constant watch on the internal currents when you’re busy isn’t exactly possible either.

Finding A Solution

The Next Fix for 12VHPWR Graphics Cards, Courtesy Zach’s Tech Turf YouTube Channel

MSI wanted to fix the problem, or at least find some way to warn the user when a power surge happens, which could be an indicator that something bad could happen. They created an early-detection software, the cutting-edge GPU Safeguard and GPU Safeguard+, launched with their most recent budget to mid-range and higher-end power supplies. The way they went about it is by creating software that detects anomalies, or faults, by monitoring if a pin gets too much current or an extreme spike in power persists longer than it should.

When the anomaly happens, it triggers a safety mechanism that beeps as a means of alerting the user. This isn’t a one-off warning. It will keep beeping for up to 3 minutes as a warning to save progress. MSI Center will also issue a pop-up about the problem for those who may not hear the beeping. This would be the time to shut the computer down, to keep the issue from persisting. If there is no one present when the safety alert goes off, the Power Supply itself will step in after the 3-minute mark and will black screen the PC as it continues to beep.

The MAG and MPG Power Supplies have the same protection sequence: a beeper going off, the screen going black, which will signal that the user needs to shut down and check the cable.

While the 12V-2×6 connector was a step in the right direction, the goal of the GPU Safeguard+ system is to end the era of GPU melting nightmares. MSI’s transition to proactive safety warnings in hardware marks a necessary evolution regarding PC components. This bridges the gap between real-time monitoring and automated protections, offering a much-needed safety net while letting gamers have peace of mind during some serious gaming sessions on today’s modern graphics cards.