I have an older system:
P4 2.80 Ghz, FSB 533 (133x4)
Mobo: Asus P5P800-VM, FSB 800
Video memory: 1GB DDR400 (2x200Mhz)
As you can see, CPU (133Mhz x 21) is not synchronized with the Video memory (200Mhz x 2), i know the best ratio is 1:1, also a good one would be 1:2. Instead of underclocking my Ram to DDR 266 (133x2) I think i should better oveclock my CPU's FSB to 800 (200x4). I am aware that I have to decrease the multiplier, cause the frequency would get up to 4200Mhz, so this is the change i want to make:
FSB 533, x21 = 2800 Mhz
FSB 800, x14 = 2800 Mhz
i will keep my clock speed the same, i will just adjust the fsb to fit with the rest of the system. I've searched much about this but i couldn't find what i was looking for, can you please tell me if this overclock/underclock will affect the stability of my system?
Thank you in advance
No one can answer that for sure, each CPU, motherboard RAM (not video memory) are different. The only way you are going to know is by testing it. And to be honest on your system you will not seem much difference, maybe in benchmarks but not in real life applications.