FreeBSD 6.2/6.3/7.0 install CD boot panic

[Balgansuren Batsukh]

Hello,

I tried to install FreeBSD-6.2/6.3/7.0 on Dell E520.

When it get boot install CD, ask me language selection then panic. I mean 
keyboard, mouse no response, only can power off.

Dell hasn't any serial port for debug.

Only I use digital camera to capture screen.

I tried to all boot options 1,2,3,4,5. When I try to boot using without ACPI 
and got general proctection fault.

Please find attached screen.

Regards,
Balgaa