I've recently upgraded to Windows 7 and want to install a fourth gig of RAM to improve performance. I currently have 3x 1GB chips installed.
2 of them are Corsair 1GB DDR2 800MHz/PC2-6400 XMS2 @ 5-5-5-12
The 3rd is the same but runs at 5-5-5-18.
The fourth stick which I just bought is the same as the third. But having installed it the PC will not boot. Power comes on, fans are running and the power light flashes on & off. I get no display or bios post. Sometimes the power comes on then goes off then on and off again, like a car not being able to start.
Taking this new RAM out solves the problem and it all runs perfectly again.
I am aware that the new RAM may be faulty however I would like to get some feedback on whether it could be something else that could be causing this problem?
Thanks in advance