A few slightly bent may be repairable if you're careful.
Other than that it sounds like you've tried all the things I would.
Other than that whichever cp u is installed the outcome is the same. I do have a used motherboard on the way although this will also need a bios update as my stupidity dictates I make the same mistake twice before learning my lesson. -BIOS settings are messed up and the CMOS chip needs a reset by pulling the battery or moving the jumper.
I also have a used 2nd gen i3 processor coming in case it is the cpu that is fried. Be sure to pull power plug from the wall before reset.
Without a Heatsink mounted correctly a CPU will burn itself out almost instantly. If there were then I'd assume neither cpu would give warning beeps.
ACTIVE MEDIA PRODUCTS PRESS RELEASE Fremont, California - February 7, 2011- Active Media Products, a leading manufacturer of SSDs, DOMs and USB drives, today announced the new FLIP pivot USB 2.0 flash drive, an ultra-slim pivot style drive.
"The FLIP drive is designed in fire orange and white racing colors, giving it a unique look, and the drive is extremely small and ultra-slim, making it a highly portable storage device," stated Active Media Products VP of Sales, Jerry Thomson. Creating custom PCBs by drilling exact holes at specific points is very easy, therefore by being able to easily install different PCBs and ad Just their height compared to the top of the copper core we gained the ability to emulate any CPU core precisely and install any cooler despite its design, size, shape, weight and / or retention mechanism.
The trouble is new LGA1155 motherboards are not widely available now, so you might be looking at used parts if you do decide to replace.
I've had another close look at the cpu socket under a good light and still don't see any bent pins.