Is 53°C too hot for an Intel Core 2 Duo E8400 CPU @ 3.00GHz? [closed]

No, 53°C is not too hot.

pantherproducts

Intel Core 2 Duo (Wolfdale) 72.4°C


Intel

Intel® Core™2 Duo Processor E8400 Tc Max = 5° C to 72.4° C


CPU World

Minimum/Maximum operating temperature (°C) ? 5 - 72.4