This message was posted on behalf of Intel Corporation
I understand you are trying to overclock an Intel® Core™2 Duo Processor E8400.
Please bear in mind that your processor is locked. This means that it cannot be overclocked. Only, unlocked processors like the Intel® Core™ i7-7700K Processor or the Intel® Core™ i5-2500K Processor.
See the following website for more information: