is my motherboard gigabyte ep45c-ds3r compatible with 64 bit processor

Solution
this is what your motherboard will support:
Support for an Intel® Core™ 2 Extreme processor/
Intel® Core™ 2 Quad processor/
Intel® Core™ 2 Duo processor/
Intel® Pentium® Dual-Core processor/
Intel® Celeron® processor in the LGA 775 package
(Note) This motherboard is designed with VRD11.1 power phase, and cannot be compatible with VRD10 designed CPU. Please refer to "CPU Support List" for details.


all these chips are 64-bit

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this is what your motherboard will support:
Support for an Intel® Core™ 2 Extreme processor/
Intel® Core™ 2 Quad processor/
Intel® Core™ 2 Duo processor/
Intel® Pentium® Dual-Core processor/
Intel® Celeron® processor in the LGA 775 package
(Note) This motherboard is designed with VRD11.1 power phase, and cannot be compatible with VRD10 designed CPU. Please refer to "CPU Support List" for details.


all these chips are 64-bit
 
Solution