There's a remote chance that you could try again to reposition the bent socket pins and improve the booting. If any one of the pins is actually broken, youi're out of luck. Socket pins are springy in only one direction, but are brittle and break easily when flexed in another direction. The initial bending and then a try at straightening can crack them. When the CPU is place and pressed down, the pin breaks off or bends badly to miss the contact on the CPU, or worse shorts to another pin. In any of these cases, symptoms are mysterious since the CPU is missing only a one or a few signals.
If one more try doesn't fix it, replace the mobo. Ebay is your friend. You may also consider upgrading (ASUS probably likes that suggestion more.)