NV-UV: New undervolting tool for Nvidia GeForce RTX 5000

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NV-UV Nvidia GeForce RTX 5000

NV-UV is a new undervolting tool for Nvidia Geforce RTX 5000, which uses MSI Afterburner as a backend and is designed to get the maximum performance out of the Blackwell GPUs while also being particularly convenient.

NV-UV, which was developed by our community member cubi2k82 from the PCGH-X forum, is a brand new undervolting tool for Nvidia Geforce RTX 5000, which uses the well-known MSI Afterburner as a backend and should both get the maximum out of the Blackwell GPUs and be particularly easily configurable. Also thanks to the 1-click presets for eco, balanced and performance, the UV pilot and fine-grained settings, this professional tool is intended to address beginners and enthusiasts.

Source: cubi2k82

At this point, the developer, who is in the forum of 3DCenter.org known under the name Cubitus, have their own say and present their tool and its extensive feature set in detail. The editors of PCGH would like to thank you very much for the great exclusive content that led to this news.

Today I would like to introduce you to a tool that I have been working on for some time: NV-UV, an MSI afterburner-based Undervolt companion for Geforce RTX 5000 ("Blackwell"). - cubi2k82, developer of NV-UV

Why is a tool like NV-UV actually necessary and what was the driving force behind its development? As is well known, Nvidia has "closed down" write access to the VF curve of the NVAPI at Blackwell and undervolting actually only goes sensibly via MSI Afterburner. But the curve fiddling with Ctrl + F and Shift + Drag is not very comfortable and that's why NV-UV had to be there, as the developer explains.

NV-UV automates this completely and packs a lot on top of it and uses MSI Afterburner as a backend. - cubi2k82, developer of NV-UV

Then let's take a look at what NV-UV has to offer in details.

NV-UV: Featureset

What the tool can do:

• 1-Click presets Eco, Balanced, Performance, Max with community-validated values per GPU. Just click, that's it.
• If you want, you can adjust everything by right-clicking (1 mV / 1 MHz exactly).
• UV Pilot: Automatically detects which game is running (573+ games in the DB) and selects the appropriate UV profile. --> You can also create new ones yourself.
• Game replay registers driver crashes and automatically reduces by 50 MHz, so that the game will run stably if the UV spirit wants it to (needs to be tested even more broadly)
• Auto-UV Scanner, Its own DX12 +DXR stress test that scans the VF curve, uses this as a solid starting point.
• For the final result you can use the game replay feature, you are playing a game and with every crash the clock of your UV profile will automatically decrease until the game is stable.
• Live telemetry, VF curve display, idle optimization, Power Limit slider, FROM Silent Mode and currently two themes (Dark + a retro skin)

What I need:

I am testing myself on a 5090 (Zotac AMP) and 5070 Ti (ASUS), for the two cards I am in good spirits that everything fits. What I'm missing:

• RTX 5070 presets are included, but completely untested in practice
• RTX 5080 is basically running, but I'm missing valid data points for really solid presets 5070 Ti/5090 with other manufacturers, the more data the better

Ideal conditions:

• RTX 5090, 5080, 5070 Ti or 5070
• MSI Afterburner installed + Voltage Control enabled
• Driver 590.xx+ recommended
• Windows 11, 64-bit
• No .NET or anything else needed, an EXE, done (~200 MB)

NV-UV is currently still in closed beta, but the developer urgently needs more feedback and is therefore looking for testers who contact him via PN via the PCGH-X forum and support him in testing.

NV-UV

Game Database

Voltage Step Scanne

However, due to the very early stage of development, errors and instabilities are to be expected, which is why the following instructions should definitely be observed.

Safety note

Status: Closed Alpha

The tool is currently in alpha status.

I am developing NV-UV on my own, so it may take some time for answers. But I read all the feedback.

Known limitations/bugs:

• Occasional display errors in the VF curve display (Catmull-Rom interpolation)
• Error in the recognition of the original stock curve, tool then not usable!
• There may be crashes after the scanning process
• The game replay system works in principle, but needs even more validation in practice, can also crash
• Import of existing UV profiles, make sure to back up profiles beforehand.
• Note: The VF curve display in NV-UV is for visualization purposes only.
• A manual editing of the curve is deliberately not intended, for this there is the Curve Editor of MSI Afterburner.
• NV-UV does not see itself as a replacement or competition to afterburner, but as a supplement to make undervolting easier and more accessible.
• Mini View, partly out of sync with main view

The tool is a portable EXE with a size of about 180 MiByte - no installation is necessary. "I would prefer to make NV-UV publicly available already, but I would like to achieve a certain level of stability and quality before that," says the developer.

You don't have to commit to anything. If you just want to test, that's just as welcome. Feedback is great, of course, but not a must. - cubi2k82, developer of NV-UV

The goal of the Companion app, which should not be in competition with the MSI Afterburner, is a peaceful coexistence, which should make the topic of "undervolting" much easier to access.

For further information, interested users and testers can contact cubi2k82 directly via the corresponding thread in theShero King forum.