Fix RTX 40 Series Hot Spot and Memory Junction sensor not reading

sergiye · sergiye · commit 91b768bc4193 · 2025-09-24T11:40:42.000+03:00
diff --git a/OpenHardwareMonitorLib/Hardware/Gpu/NvidiaGpu.cs b/OpenHardwareMonitorLib/Hardware/Gpu/NvidiaGpu.cs
@@ -481,6 +481,12 @@ public override void Update()
                     _hotSpotTemperature.Value = 0;
                     _memoryJunctionTemperature.Value = thermalSensors.Temperatures[2] / 256.0f;
                 }
+                // RTX 40xx series
+                else if (Name.StartsWith("NVIDIA GeForce RTX 40", StringComparison.OrdinalIgnoreCase))
+                {
+                    _hotSpotTemperature.Value = thermalSensors.Temperatures[1] / 256.0f;
+                    _memoryJunctionTemperature.Value = thermalSensors.Temperatures[7] / 256.0f;
+                }
                 else
                 {
                     _hotSpotTemperature.Value = thermalSensors.Temperatures[1] / 256.0f;

Original file line number	Diff line number	Diff line change
`@@ -481,6 +481,12 @@ public override void Update()`
`481`	`481`	`_hotSpotTemperature.Value = 0;`
`482`	`482`	`_memoryJunctionTemperature.Value = thermalSensors.Temperatures[2] / 256.0f;`
`483`	`483`	`}`
	`484`	`+ // RTX 40xx series`
	`485`	`+ else if (Name.StartsWith("NVIDIA GeForce RTX 40", StringComparison.OrdinalIgnoreCase))`
	`486`	`+ {`
	`487`	`+ _hotSpotTemperature.Value = thermalSensors.Temperatures[1] / 256.0f;`
	`488`	`+ _memoryJunctionTemperature.Value = thermalSensors.Temperatures[7] / 256.0f;`
	`489`	`+ }`
`484`	`490`	`else`
`485`	`491`	`{`
`486`	`492`	`_hotSpotTemperature.Value = thermalSensors.Temperatures[1] / 256.0f;`