I decided I would post this here, as people here always seem to have good insights.. I have posted this on numerous other forums, and no one yet has been able to shed any light on the situation..

Here is my problem.. I put together a new system, an ASUS P4G8X motherboard (intel 7205 chipset), ATI Radeon 9500 Pro, 2x 512mb DDR266 and a P4 2.53ghz processor. What happens is this: When I reboot (any time, ie. save and exit from BIOS, restart from windows, anything) the machine will typically hang right before POST. The cd-rom will pretend to spin up, but thats it.. and the little asus voice will come on and say "System failed due to CPU overclocking".

Now, my system is not overclocked, and everything is at "normal" settings for the CPU / Video Card etc.

I thought it was a bios problem, but I basically ran through every possibility in the bios, and nothing helped. So I decided it was maybe a memory problem, I switched out the Corsair modules for some Kingston modules (that were shown to work with this motherboard from Kingstons website). That didnt solve the problem. Then I decided I would throw a different video card in the machine and see what happened.

I put an old Geforce 256 in the machine, and the problem magically disappeared. Great, huh? So I decided I would just RMA the Radeon 9500 and get a new one, and I would be good to go. Well, I received the new Radeon, and guess what? Same problem I was having before.

At that point, I thought.. maybe my 330 watt power supply isnt sufficient, so I got a 430 watt supply.. No luck with that either. Still hangs before POST (I can reboot after it hangs, and it will usually boot up fine the 2nd time)

The helpdesk people at ASUS basically told me to "Buy a non-ati card". That was fairly frustrating, because I want to use an ATI card, and I mean, 2 major manufactuers products (you would think) should be able to work with one another.

Any suggestions? Do you think my motherboard is bad? It has to be some kind of compatibility issue between my motherboard and Radeon cards. I have read posts of people having difficulties with this same combination, but nothing like mine.

Any help would be great, as I am completely baffled.