NVIDIA has reportedly blocked core power control functionality on its GeForce RTX 50-series graphics cards via driver update 615.56, disrupting enthusiast overclocking tools like mVolt+. According to community reports on Overclock.net and Uniko’s Hardware on X, attempting to feed extra current to the hardware now triggers a black screen resembling a driver crash.
Driver Update 615.56 Blocks mVolt+ Power Limits
The open-source overclocking utility mVolt+ previously allowed users to bypass default restrictions on select GPUs, letting hardware like the flagship RTX 5090 draw up to 125 W of additional power for higher core clock speeds. However, applying extra current following the installation of driver version 615.56 causes immediate system instability, based on findings shared on Overclock.net. Developers and users are currently testing whether this change stems from an intentional software block by NVIDIA or an unintended incompatibility with the new driver build.
https://x.com/unikoshardware/status/2093146987696967752
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Alternative Workarounds and Software Status
Reports indicate that a beta build of Hydra 2.3 maintains access to core power overrides on NVIDIA GPUs even after updating to the latest driver version. It remains to be seen whether future updates from NVIDIA will address third-party tool compatibility or if developers will need to release patches for mVolt+ to bypass the new driver restrictions.
Frequently Asked Questions
What does driver update 615.56 do to RTX 50-series GPUs?
According to Overclock.net and Uniko’s Hardware, the update blocks core power control adjustments made via tools like mVolt+, resulting in a black screen and driver crash when extra current is applied.
Can any overclocking software still bypass NVIDIA power limits?
Yes. Reports note that a beta build of Hydra 2.3 can still access core power overrides on NVIDIA GPUs following the driver update.
Is the power block intentional?
It remains unclear whether NVIDIA intentionally blocked the functionality or if the behavior is caused by an untested incompatibility between mVolt+ and the new driver release.
Join the Discussion
Have you tested driver update 615.56 with your RTX 50-series card? Drop a comment below and share your overclocking results.
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