No POST No BOOT Precision 5820

Hello, Recently my precision tower 5820 has decided it doesn't want to POST. One day i shut it down, when i went to power up again the fans rotate but when i hit the power button i get nothing. 

So here's what happens, When the initial power enters the machine from the main lug socket, the fans spin up then i get a 2-2 amber light on the power button with no repeats. 

What i have tried: Removing all peripherals including spare drives, gpu etc. Removed all ram slots to see if it registered another error again only a 2-2 amber with no repeat. Tried a new psu, reset the cmos, jumped the board. 

After every attempt at trouble shooting, I still get the 2-2 amber with no repeat pattern. If i hold the power button in for 10 seconds, the fans stop and restart and it shows the same 2-2 amber lights again with no repeat. 

My best guess is the motherboard is fried somehow? But before i buy a new one i suppose it's worth an attempt to see if anyone here can help? Please :)