YDL installation issues with G5

[Perisa, Dennis]

Hi all,

I have a serious issue with installing YDL 3.0.1 on a G5.

Firstly, I was only able to boot from the YDL CD via 'Open Firmware' (cmd-alt-o-f).  At this stage I thought my prayers were answered but I was shot down really quickly when I entered the installation phase.  

After selecting the type of install (install, install text, etc.), the very next screen displayed the following message:

Starting cpu cpus/PowerPC,970 ... failed: 00000000
Initializing fake screen: NVDA, Display-B
Calling quiesce ...
DO_QUIESCE finished returning 0x01400000 from prom_init
Invalid memory access at %SRR0: 00000000.01403750  %SRR1:10000000.00083030

Then it presents an 'open firmware' prompt and it all locks up.

Note that I have tried all the different install types at the YDL boot prompt and I have also tried burning the ISO's from Mac's Disk Utility and the Windows-based Ahead Nero with the same results.  MD5sums check out too.

G5 Specs: Dual 1.8GHz G5/1GB DDR400/160G SATA HDD/NVidia GeForce FX 5200

Appreciate any help with this.
Dennis.