In some cases, the "hot" temperature isn't physical—it's a firmware reporting bug. Some versions of the SM2259XT firmware report a static, high temperature (like 40°C or 48°C) that never changes, or it may jump to 100°C instantly due to a sensor mapping error in the code.
If you see any of these, the stock firmware is failing to manage thermals. The "hot" firmware (the modified one) can help. sm2259xt firmware hot
For the SM2259XT controller, "running hot" or requiring a firmware "hot" fix usually refers to using the to reflash or unbrick a drive that has entered "ROM Mode" due to firmware corruption or hardware failure. Guide to Reflashing SM2259XT Firmware In some cases, the "hot" temperature isn't physical—it's