So I just upgraded my motherboard to an MSI G31TM-P21 https://us.msi.com/Motherboard/G31TMP21.html But with this motherboard my core 2 quad q6600 hits 90 degrees C while in the bios, even when underclocked. It should support the CPU as on the page for it says "CPU (Max Support) Core 2 Quad" my core 2 duo E7200 works perfectly on it at 24 degrees C in the bios. What's going on? I pulled the CPU from a working system. And I have a reliable power supply (EVGA 600 watt 80+ bronze). The power supply is less than a month old.
I have reapplied the thermal paste multiple times as well as had a very experienced technician do so himself, still overheats in seconds. It also auto shuts down before I can boot windows
My core 2 quad q6600 is 90c while in the bios (H/W monitor) (with intel stock cooler)
cpumotherboardoverheating
Best Answer
It is likely the cooler you are using for the CPU is not designed to handle the TDP (Thermal Design Power) of the newer processor.
You may want to investigate the TDP of the two processors and of your cooler.
Intel® Core™2 Duo Processor E7200 is 65W: http://ark.intel.com/products/35348/Intel-Core2-Duo-Processor-E7200-3M-Cache-2_53-GHz-1066-MHz-FSB
Intel® Core™2 Quad Processor Q6600 is 105W: http://ark.intel.com/products/29765/Intel-Core2-Quad-Processor-Q6600-8M-Cache-2_40-GHz-1066-MHz-FSB