Well I am still getting the same problem. ASUS "Speech Reporter" was reporting "CPU failure due to overclocking" (which i never have done), and then it would report that it failed CPU check, so I put this CPU in my second system and had no boot issues at all. I then placed an old P4 3.0GHz (b) in my main system and hey presto, ASUS "Speech Repoter" was saying that the CPU failed CPU check.
One conclusion. Motherboard is shot. No wonder ASUS will not reply to my e-mails.
I've ordered a new one...i just hope it doesn't have the same issues...
So, this hascost me so far...
PSU £60
DVD Rom £30 (DN should buy this off me cos it was his fault I bought it...

)
RAM £219
Mobo £144
Total £453
Mind you, I will have 2 Gig of RAM lol

(which may or may not run in dual mode as they are different manufacturers) and someone is bound to give me circa. £120 for a 2 x 512MB PC3200 TwinX Low Latency Corsair wouldn't you think....
I did have a look at getting a new CPU to be sure and had a look at the P4 3.0Ghz Expensive Edition...but for £700 they can just plain get F@#ked}!!