Valve is raising the Steam Machine’s red temperature warning after users were scared by pointless overheating alerts.
The upcoming firmware update will lift the CPU and GPU warning threshold to 100°C. The idea is to stop the Steam Machine from flapping its red LED at users while the hardware is still within normal limits.
Some users reported seeing the red indicator during stress tests or demanding games. The feature is supposed to warn of overheating and thermal throttling, not behave like a tiny panic lamp with a power cable.
One user said the light bar turned red during gameplay. The screenshot showed the GPU running at about 75°C and the CPU at 81°C, which is not exactly a silicon bonfire.
Zen 4 and Zen 5 chips are designed to operate safely at about 95°C under sustained load. The problem is that the Steam Machine can warn users before that point, creating interruptions for no good reason.
“After discussing with our engineers, there is a known issue with the current BIOS that results in the red LED lights displaying much earlier than they should.”
The issue is just with when the lights are set to come on. The Steam machine itself is within normal operating temperature for the CPU/GPU, which they confirmed from your screenshots. For your awareness, the Steam machine will start throttling performance at 100°C for the CPU/GPU and will shut down to protect itself if temperatures rise beyond that.
A BIOS update is being worked on to be released soon that will fix the red LED light behaviour to be at the 100/100 C for CPU/GPU instead of 95/90 for CPU/GPU that is currently happening.”
Steam Support said the issue is with the warning trigger, not the machine cooking itself. That is handy, because nobody wants their compact gaming box acting as if it has just entered a reactor core.
Valve is preparing a BIOS update that changes when the lightbar throws the red overheating warning. The CPU and GPU thresholds will rise from 95°C and 90°C to 100°C, respectively.
The same limit will apply to the CPU and GPU. Valve says the Steam Machine begins throttling performance when either component reaches 100°C and shuts down if temperatures keep climbing.
The red LED warning is separate from the GPU failure issue and memory training behaviour seen after BIOS updates. In other words, one red light does not mean the same thing every time.
