If you want to risk frying your GPU, you may try the newly leaked 1000 Watt BIOS, specifically designed for the MSI RTX 5090 Lightning Z.
RTX 5090 Lightning Z 1000W BIOS Uploaded on Techpowerup Database, Allowing Users to Flash it on Different RTX 5090 Models from Non-MSI Vendors
If the 800W leaked BIOS wasn't enough, users can now download the 1000W BIOS file from TechPowerUp for their GeForce RTX 5090 GPU. NVIDIA RTX 5090, which is usually capped at 600W, can now pull significantly higher power using the latest BIOSes, which are specifically made for the latest MSI GeForce RTX 5090 Lightning Z GPU.
The Lightning Z GPU is the only edition that officially brings a 1000W profile for users, but also allows boosting it up to 2500W. However, that remains for enthusiast overclockers who want to squeeze every last drop of performance from the card. MSI offers 800W (OC) and 1000W (Extreme) profiles for the card for those who want to push the GPU to its limit. That's why the RTX 5090 Z Lightning Z GPU features dual 16-pin power connectors.
That said, the leaked BIOSes have been reported to work with other editions as well. Someone just shared the BIOS files for both profiles on Techpowerup and Overclock, and users have already started flashing them on RTX 5090s from GIGABYTE, ASUS, and ZOTAC. While the BIOS is working on various editions, there have been bugs and other issues that are expected to arise due to some incompatibilities. Since the 12V-2x6 connector is officially rated at 600W power draw, the connector will be at a huge risk of overheating and melting with such a high power draw.
That said, these BIOSes do eliminate any need for any shunt mods, but flashing non-OEM BIOSes voids the warranty. This is why we don't recommend it, because such a high power consumption not only increases the risk of damaging your GPU, but it will also result in rejection of RMA requests. So, do it at your own risk, considering that the RTX 5090 is already the most susceptible to connector melting.
News Source: @unikoshardware
About the author: Sarfraz Khan is a hardware reporter with a focus on PC components and the builder community. With years of experience writing about PC hardware and laptops, his work has been featured on several reputable technology publications. Sarfraz's hands-on experience is demonstrated through his first-person accounts of using and comparing different hardware configurations, providing practical and relatable insights for everyday users. His technical analysis is respected by peers in the enthusiast community and has been cited by specialized hardware sites such as Germany's Igor's Lab.
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