Vista - Boot Up Problem!

Hello I've recently had an AMD Athlon 64 X2 5400+ installed on my Dell. Now my computer gets to the progress scroll bar page then it goes black and reboots. I've tried repairing and restoring but both are unsuccessful. I want to avoid a clean install as much as possible. Can someone please help me get my computer working. Any help is appreciated.

sounds like heat or memory

Looks like you will need a clean install. Try using ubuntu to copy the data you need on a DVD/USB stick.

I ran a memory test on my computer and it passed. Or is there another way to check if it's memory, and about heat how would i check that?

you should be able to check it from your bios. or you may want to open your case
and make sure your ( cpu fan ) is running when you start your system. i'm just thinking that maybe when the (AMD Athlon 64 X2 5400+) was installed thay forgot the plug the cpu fan in and the system is overheating and causing the reboot..
scrooge

I hear the fan and i just checked the bios and couldn't find anything on it. If i could get access to my desktop i could run HWMoniter

there should be a HWMoniter in your bios .it maybe called system moniter or something like that. also the fan you hear maybe your power supply and not your cpu fan..

I see nothing that shows the temperature of the system, sorry for me being so difficult. If it was overheating then wouldn't it reboot randomly from the BIOS?

i think what's happening is your system is loading all the drivers and at some point it
overheats causing a system shutdown or reboot. i maybe wrong but thats what it sounds like ..it also maybe your (cpu bios) settings did you take a look at them and make sure something is not set to high. also look around in your bios cause the moniter has to be there...
scrooge

How would you recommend fixing this?
I've checked my BIOS and can't find squat on that. :/