Found this previous old thread that fixed the NEW CPU error by reseating the CPU and cleaning the Motherboard's CPU Socket: [SOLVED] New CPU installed on boot - Tech Support Forum .

Hey guys,

Sorry for the slow reply, been rather busy lately.

I re seated the CPU and now the problem has stopped, might have been dust or coming loose somewhere, thanks for the help:).

This user found one reason for Asus motherboard's having that CPU installed error message and how to fix it: Solved! ASUS New CPU installed issue .

This is a very old previous thread from Tom's Hardware concerning the same issue on a Asus motherboard: Help! Cpu Reinstalls every boot up! - CPUs - Tom's Hardware .

OMG... after i found out what jumpers were.. i looked at the CMOS jumper place and there was nothing there!! Then i saw the jumper in the dust under the motherboard! i guess it somehow came out of the cmos thingy .. well i put it in AND IT dosnt reinstall my cpu every time now!!!! thanx everyone for ur help!.

My opinion is either a bad CMOS Battery, CMOS BATTERY Contact/pins, bad BIOS Chip, or bad motherboard CPU socket. Or it could be a bad contact between the CPU and the motherboard's CPU Socket.

Seems like you have done all the steps that FIXED the problems in the other threads. 

If your motherboard is still under warranty I would try and RMA it.

Your motherboard need to have the cap (jumper) installed properly on the CLRTC in position 1 & 2.  If you have it on 2 & 3 it will continue to reset the BIOS every time you boot up.

Seems like this happens mainly with Asus Motherboards. I have a Asus motherboard with a FX 8350 without any problems.