Vista x64 and 4gb of ram

[SuperMiguel]

I have 4gb of ram ddr2 800, when ever i put 3 sticks (3gbs) my computer will work perfectly, and when ever i put the 4th one, when ever is trying to boot to windows it will just reboot it self. What can i do thanks

[DaPoets]

try increasing the voltage to your ram... 2.0v.... 2.1v.... 2.15v.... 2.2v if none of those work you probably have a bad stick...

[Neuromancer]

Do not know if they still require it but my asus socket 939 boards had a bios option to enable 4GB+ addressing. Perhaps yours does as well?

[SuperMiguel]

is not a bad stick, because if i change the one tha i left out with another one it will work, so it is a windows or bios problem, neuro i dont find that option on the bios so it must be something else