12.04.2 and 13.04 recursive fault

12.04.2 and 13.04 recursive fault

26/08/13 system: HP Pavillion DV6700 hdd upgraded to 1.0Tb WD10JPVT OS Win
7 64 bit (wiped vista) Aim : to dual boot win 7 with ubuntu 12.04.2 64bit
downloaded amd 64 bit 12.04.2 then burned to disk.no error messages at any
stage.NB used desktop system Ubuntu 8.04 to do download and burn
(brassero).Triple boot XP, Win7, Ubuntu 8.04 loaded system onto laptop,
and again no error messages during os loading. Removed disk and restarted.
Appeared to be a normal start, selected ubuntu, made all normal noises,
then fan sped up to full. Laptop quickly got warmer, the screen had
stopped at recursive fault reboot needed 14.524009 _ _ _ [end trace
30e853624bd8f9] Boot up would not procede past this point. The cooling fan
ran at maximum and the laptop was running quite warm.Also could hear hdd
running
In 5 attempts using both normal and recovery mode I had 5 boot failures.
Fail point was variable, between 9.xxxxxx and 16.xxxxxx Error message was
always "recursive error reboot needed" I also tried to load ubuntu 13.04
as per above. After multiple failures I gave up. The only difference was
the fail points varied from 7.xxxxxxxx to 14.xxxxxx with the same error
message. Hard shutdown was needed each time. Win7 worked perfectly
reguardless of ubuntu status. Test loaded mint 14 64 bit, Worked
perfectly. I have installed ubuntu 12.04 32 bit on 2 other computers
successfully. What is wrong with ubuntu 64 bit???