FSB 1333 CPU in a 1066 q965 chipset mobo

[idata]

Even if Intel compatibility tables do not show "mixed" FSB/CPU options ... !!!

What results can I have upgrading with a Core 2 or Quad 1333 FSB CPU ??? (Reason to ask: Old FSB 1066 CPU's out of sale or price).

Will the FSB 1333 CPU work at 1066 ok... just a litle bit slower in FSB transfer rate actions ? or a lot slower for everithing ?

For example with a "new" Intel® Procesador Core™ 2 Duo E8400 (Boxed, FC-LGA4, "Wolfdale").

Or a Intel® Procesador Core™ 2 Quad Q9400 (Boxed, FC-LGA4, "Yorkfield").

Will ir work for example with a Intel® procesador Pentium® E6500 (Boxed, FC-LGA4, "Wolfdale-3M") 1066 FSB low dual core technology ? (not vPro comliant)

I have a ACER Veriton 7900Pro PC with 965 express chipset (FQ965M Mobo), 1066 FSB and vPro compliant, BIOS R03-A4.

I found a E6750 CPU (FSB 1333) inserted ... not working now for overheat resons (fan stoped !).

[idata]

There is a good chance they will work, the biggest issue is whether the specific motherboards BIOS has the CPUs microcode in it or not, and therefore recognise or not the CPU.

[idata]

Thanks, the good chance could be or not ! and I have only 1xx Euros for one shot !

Do you think that the Intel Q965 chipset has the capacity to work with 1333 FSB, even if it started in design with 1066 ?. It's just a matter of BIOS microcode ?.

About the degradation in performance ... any idea ? (30% I have read in ... a Tom's HW Web ... and that's a lot less power).

[idata]

Hi,

even if the q965 doesn't go up to 1333, the CPU will scale down, about degradation of performance i couldn't tell you with any certainty. so in does kinda come down to teh microcode..