Monitoring Overview
Nexus monitors your PC's hardware live: CPU, GPU, RAM, network, disks, fans, temperatures, and in-game FPS, plus battery on laptops. Every number comes from the local background service, which reads your hardware directly on your own machine. Nothing about monitoring requires an internet connection or an account, and your hardware data stays on your PC.
1. The Monitoring page
Open Monitoring in the sidebar. The page is split into tabs, each with a live value on the tab itself:
- CPU - overall load, with your CPU model shown above the chart.
- GPU - GPU load. This tab appears only when your platform reports live GPU utilization; on a multi-GPU system you can pick which GPU it tracks.
- Memory - RAM usage.
- Storage - disk throughput, charted as Read and Write.
- Network - network throughput, charted as Download and Upload.
- Detailed - the complete sensor tree (see below).
2. History charts
Each metric tab has a history chart you can scrub back through. Pick a window with the range control: 30m, 3h, 24h, 3d, or 7d (the service keeps seven days of metric history). While you are on Live, the chart follows the present; scrubbing back detaches it, and Back to live returns to now.
The CPU and GPU charts also carry that component's temperature and your fan speeds, so you can see load, heat, and fan response in one place. Clicking the chart pins a moment in time: the process list below switches to a snapshot of that instant.
Tip
By default the fan line on the CPU and GPU charts averages all system fans. Mark which fans cool your CPU or GPU on the Cooling page (the fan icon on each fan card) to get a precise per-role fan speed instead.
3. Per-app usage on the chart
Hover the chart and the tooltip breaks that instant down by app: the top apps at the hovered moment, each with its icon, name, and how much of the metric it was using right then - a percentage on the CPU and GPU tabs, an amount of RAM on Memory, a transfer rate on Storage and Network. The GPU tab adds each app's VRAM use alongside. The list re-ranks as you move the cursor, so it always reflects that exact moment rather than an average.
This is the quickest way to explain a spike: scrub back until the spike sits under your cursor and read off what was running. To follow a single app instead, click it in the process list below the chart - its own usage history is drawn on top of the chart as a second line.
4. Apps and processes
Under the chart, every metric tab lists your running processes, grouped into Apps and Background processes the way a task manager does. Each row shows the process icon, its name and publisher, a mini sparkline of its usage across the charted window, and its value for the tab's metric - CPU or GPU percentage, memory, or a transfer rate. Search matches process and publisher names, and the sort control orders by Name, Recently launched, or Usage. Row order stays put while you watch: a value change alone never reorders the list.
5. The process detail panel
Click a process row and its detail panel opens beside the list; click the same row again, or the panel's close button, to close it. The panel keeps following the process you picked even when you switch metric tabs. It shows:
- Live usage tiles - CPU, memory, GPU, and VRAM side by side, whichever tab you came from; the Storage and Network tabs add the process's read/write or download/upload rates. The tiles track Live, or show As of a pinned moment when you have clicked one on the chart.
- A usage chart - this process's own usage across the charted window, with its Avg and Max in the tab's unit.
- Info - Version, Description, Publisher (with an Unsigned badge when the file carries no valid signature), the executable's Path and SHA-256 (each with a copy button), and file and launch timestamps such as Started.
- Privacy - when the process recently used the camera, microphone, screen, or location, each session is listed with its time.
End task closes the process after a confirmation, and Open file location reveals the executable on disk.
6. Timeline events
The chart can overlay a lane of events so you can line up what happened with what the hardware did: App opened, App opened as admin, USB device connected, USB device disconnected, privacy events (Microphone used, Camera used, Screen captured, Location used), and your own notes (Custom event, added while a moment is pinned). Toggle the whole lane from the calendar button on the chart, and choose which kinds appear in Monitoring settings.
The Privacy history button shows which apps used the camera, microphone, screen, or location, covering the last 30 days.
7. The Detailed tab
The Detailed tab lists every sensor the service exposes, grouped per component: CPU, GPU, Memory, Memory Module (per DIMM), Storage (per drive), System (motherboard), and, where present, Battery, Power Supply, Cooler, and Embedded Controller. Within each component, sensors are grouped by kind - Temperatures, Fans, Clocks, Load, Power, Voltage, and more. Sections collapse and remember their state.
8. Monitoring beyond the Monitoring page
The same sensor data feeds monitoring widgets on the dashboard home, on phone and touch panels, and in the desktop overlay. FPS is one of the selectable widget sources; frame-rate capture runs only while an FPS readout is actually on screen. To choose sensors, units, and gauge styles, see Customizing Monitoring. For health checks rather than live readouts, see System Diagnostics.