I have a Lenovo Thinkcentre Model 8811DEU. It has 4 DDR memory slots and 'Core 2 Duo 6400' cpu. The clock rate is 2.16Ghz.
I would like to upgrade the CPU to quad core and a faster clock. We tried a Q9550S Core 2 Quad cpu. But, the machine never shows anything on the screen. I suspect it is not getting thru the BIOS startup. No beep sequence is emitted.
I chose the Q9550S because it had the same 65W rating as the existing 6400 cpu and should not cause any heat dissipation issues. Although, the existing cpu is not even getting the heatsink warm.
My questions are this: Is the Lenovo BIOS specifically designed to prevent this kind of upgrade? Should it have worked? What are my options? Is it time to purchase a new machine?
Thanks in advance, Jim