I have a Core 2 Duo E7400 2.80GHz processor on my Intel D945gcnl motherboard. From CPU-Z, I know that my processor speed is 1596MHz with X6 multiplier and 266MHz Bus Speed on each core.
Why is my processor being operated at 1596 MHz rather than 2.80GHz?
From my side I've tried to disable SpeedStep from my bios by setting EIST to 'Disable' and also tried to change Power Option to 'High Performance' in Windows 7. And also done like suggested in this question: Processor not running at max speed
However it gains me nothing.
I've also tried to run a few massive applications together to check whether it was increasing at that time or not, but it remains the same.
- Should I have to increase my multiplier or overclock to gain that lost speed?
- Should I have to check my power supply for any problem? or anything else?
This is a desktop computer so there won't be any problems caused by a battery.
Here's my CPU-Z Screenshot: