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I wonder if an Intel Xeon CPU corresponding to a Core 2 Quad one will work on system which supports Core 2 Quad Processors?

I want to buy a Core 2 Quad but I see many same type Xeon CPUs are on sale.

For Example this HP desktop PC, link below - This says it supports Core 2 Quad but no Xeon support is mentioned.

http://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c01399523

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Yes, it is possible to run 771 Xeons in 775 boards. It is not recommended as it is not the intended design. Instructions can be found here: http://www.delidded.com/lga-771-to-775-adapter/

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I Figured it out and i did that mod which worked. HAPPY 771 Xeon CPUs work only on some motherboards/chipsets First you just need to verify it it works on your system Then you must! update BIOS microcode files to add support for Xeon CPUs That's it... I confirm this mod works on my motherboard ! > IPIBL-LB

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The Intel Xeon E5450 is an Intel LGA 771 socket CPU.

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The Core 2 Quad Q9650 is an Intel LGA 775 socket CPU.

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The LGA 771 Xeon CPU you are interested in cannot be used on a LGA 775 motherboard. If you attempted to install a LGA 771 product into a LGA 775 motherboard you would damage both the motherboard and the CPU in the process.

For example the HP Compaq dx2400 Business Desktop PC says it supports Core 2 Quad but no Xeon support is mentioned.

This is because the dx2400 officially only supports LGA 775 CPUs. HP isn't going to list LGA 771 CPUs that require a hardware modification in order to support. There is no way to gurantee or predict if a motherboard will or will not accept the CPU after the LGA 771 to LGA 775 modification. The adaptor LGA 771 to LGA 775 modification is a "do at your own risk" type modification.

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