This CPU temperature monitor software tells you the capacity of the CPU being used, and the default maximum CPU temperature e.g. Unlike, other free CPU temperature monitoring tools the Real Temp portable version is also available. You can also set up an alarm that will notify you when the CPU starts overheats. Bizarrely, Windows doesn’t offer any way to check your computer’s CPU temperature. You could dive into your system’s BIOS to find the information, but that’s a lot of hassle to find a simple sensor. Any one recongize what does this alarm mean? From my self search it points out either powersupply is lacking power or cpu overheating but my cpu temps is okay, around 30deg celcius to 38 degrees. I have a EVGA 850 G2 psu also. I currently have 14 hard drives connected to it. Either of the two seems unlikely to cause the alarm.