Hey, think it may be a duff mobo. Tried again with a small dvi pci-e card but to no avail. I am gettin beeps, sound to me like 1 long, 3 short then a gap and another 2 short. This doesnt match the beep codes given on Asus website ( http://support.asus.com/Troubleshooting/detail.aspx?SLanguage=en&p=1&m=P5LD2
SE&s=22&hashedid=ly0uHyAg2GI5nzmr&os=&no=978) unless the beeps are just 5 short which would a cpu issue. The Cpu is compatible and it is an old one so should be supported by the 1st BIOS. I think i'm gonna give up unless anyone has anything else i could try.