How to enable RTX 50 hotspot temperature in MSI Afterburner

Wondering how to enable RTX 50 hotspot temperature in MSI Afterburner on your new Blackwell card? A community-made plugin now exposes the hidden GPU Hotspot and granular VRAM sensors on GeForce RTX 50, giving you the thermal detail you need to tune overclocks and fan curves on cards like the RTX 5090 and RTX 5080.

Until now, mainstream tools didn’t surface these sensors on Blackwell. Modders have figured out how to read the data, and the result is simple: a small plugin that adds Hotspot and per-memory-module readouts directly to Afterburner’s monitoring and OSD.

What this plugin actually unlocks

Blackwell GPUs include more telemetry than most tools expose by default. The plugin taps into those low-level registers to surface two important sets of data: the GPU Hotspot (the warmest point on the die) and memory temperatures, often with per-module granularity on GDDR7-based cards. That means you can finally spot uneven cooling or a single VRAM module running hotter than the rest.

This isn’t an “estimation”—it unlocks already-present sensors that weren’t available in typical readouts. Some monitoring suites have also begun adding support for these metrics in beta builds, so you have multiple paths to the same data if you prefer other overlays.

How to enable RTX 50 hotspot temperature in MSI Afterburner

The process is straightforward if you’ve used Afterburner plugins before. You’re simply adding a new monitoring source, then choosing which sensors to show in the hardware monitor and On-Screen Display (OSD).

• Update to the latest MSI Afterburner and install RivaTuner Statistics Server (RTSS) when prompted.
• Close Afterburner completely (disable “Start with Windows” temporarily so it fully exits).
• Download the community Hotspot/Blackwell plugin from its release page.
• Copy the DLL into: C:\Program Files (x86)\MSI Afterburner\Plugins\Monitoring\
• Relaunch Afterburner, open Settings > Monitoring, then scroll to the bottom where plugins are listed.
• Select the new plugin, click Setup, and enable the data sources you want (GPU Hotspot, VRAM temps, deltas if available).
• Back in the Monitoring list, tick “Show in On-Screen Display” for the sensors you want to see in-game. Apply and OK.

If you prefer, you can feed these sensors from a supported monitoring suite into Afterburner’s OSD via its plugin interface. That route can be handy when testing beta features without touching Afterburner’s files.

Dialing in OC and fan curves on RTX 5090/5080

Hotspot and VRAM data transform tuning from guesswork into quick iteration. Start by logging a consistent GPU workload (a stress test or a game you actually play) and record baseline GPU temp, Hotspot, and VRAM temps at stock settings. Note the Hotspot-to-core delta and whether any memory module runs as an outlier.

Next, adjust the fan curve. If the Hotspot spikes but average core looks fine, raise fan speed earlier in the curve or add a short, steeper ramp in the mid-to-high load range. If just one VRAM module climbs faster than the others, prioritize directed airflow—case fans or a gentle curve bump often fixes it without going loud at idle.

For memory OC, increase in small steps and watch per-module temps alongside stability. If errors or crashes appear when a specific module leads the pack thermally, back down a notch or improve airflow. The idea is to maximize stable frequency while keeping temperatures consistent across modules.

Risks, limits, and troubleshooting

This is community-made software. Use it at your own discretion and only download from trusted release pages. Because the plugin accesses low-level telemetry, Windows or security tools may request elevated privileges. Future GPU drivers or app updates can change sensor exposure, so keep backups and document your setup.

If the plugin doesn’t appear in Afterburner: verify the DLL path, run Afterburner as admin once, and ensure RTSS is installed. If sensors vanish after a reboot, re-check plugin enablement in Settings > Monitoring. If a game’s anti-cheat dislikes overlays, disable the OSD for that title while keeping background monitoring active.

Some guides suggest advanced tweaks (like editing low-level config files) to force sensor access. Unless you understand exactly what’s being changed, avoid those edits—most users won’t need them with the current plugin approach.

Alternative path: use a monitoring suite and pipe sensors into AB

Recent beta versions of popular monitoring tools can already expose Hotspot and, on certain models, per-module GDDR7 temperatures. In Afterburner, enable the corresponding plugin for that tool, pick the sensors you want, and send them to the OSD. This keeps your overlay consistent while letting the monitoring suite handle the data collection.

The bottom line: unlocking Hotspot and detailed VRAM temps finally lets Blackwell owners tune with confidence. With a quick plugin install and a few careful tweaks, you can stabilize clocks, smooth out fan behavior, and get the most from an RTX 5090 or 5080 without flying blind.

Image credit: NVIDIA