Previously, we reported that Valve's Steam Machine featured a "red line of death" (RLOD) that was mistakenly flagged as a system problem. This issue was actually a simple BIOS glitch that was resolved quickly. Valve has since updated its Q&A and the Steam Machine BIOS to enhance the functionality of the LED strip surrounding the Steam Machine. In their latest communication, Valve confirmed that they are working on a BIOS update that will cause the LED strip to turn red if the CPU or GPU reaches 100°C. At this point, the system will automatically reduce the performance of the CPU or GPU, depending on which component is affected, to protect the system's health. This process, known as thermal throttling, will only occur once the system reaches the 100°C threshold.

Earlier reports indicated that the RLOD appeared on systems with CPU temperatures of 95°C and GPU temperatures of 90°C. However, since the silicon can handle more heat without issues, Valve has been updating the LED strip behavior with the new BIOS update. Because Valve uses a customized AMD processor, the TJ Max, or maximum safe temperature before shutdown, is likely 105°C. Beyond this point, the system will shut down to prevent damage. Under normal operation, the LED light will remain blue, indicating that the RLOD is a serious warning sign when conditions are about to change. Interestingly, Valve's internal Steam Machine cooling system, which includes a heatsink and a fan, is sufficient to keep the Steam Machine running normally. However, factors such as room temperature and the placement of the Steam Machine can affect performance. If the device is placed in a cramped space with limited air circulation, overheating issues may be more persistent. Below is the current setup of the LED light bar, which will get updated soon.