Q: PowerMac G5 Quad wont start up. New HDD

Hi guys

Just purchased a PowerMac G5 and installed a new harddrive as it wasn't supplied with one. I installed a WD Blue 500gb HDD.

I have the original OS X 10.4.8 install discs.

I used a paperclip in the pinhole to open the CD tray as the bluetooth keyboard and mouse wern't working and it booted to the apple screen.

After that it throws up a panic.

"panic(cpu 0 caller 0x002E54BC): Unable to find driver for this plaform: "PowerMac11 ,2".

Latest stack backtrace for cpu 0:

          Backtrace:

               0x0009A4A4 0x0009AE60 0x00027E48 0x002E54BC 0x002BEEF4 0x002C004C 0x002C1EC8 0x002C0FDC

               0x000AE4F4

Proceeding back via exception chain:

     Exception state (sv=0x0101EC80)

...... etc etc etc  See photo in the link below for the entire script...

http://postimg.org/image/62tdc4d5r/

HELP!!!! I know the mac previously had 10.5.8 installed on its old HDD. would this make a difference??

Thanks in advance

Paul