IF I unlock my XP 1600....

[Sean453]

...could I run 195-200 FSB with my XMS PC3200 and Epox 8K5A2? I would overclock it to about where I am right now, 1.85 GHz, but just faster bus speed. Something like 9.0 x 200 = 1800 MHz, 9.5 x 200 = 1900 MHz, or 195 x 9.5 = 1853 MHz was what I had in mind. But is it even worth the trouble? I might try it if there's a big performance gain.

 

[zsouthboy]

Uh.... dude, what are you asking? DO IT! NOW! If nothing else you can just run it at your current settings anyway.

IMO, you have a good chance of hittin 200 bus speed as long as your board will handle it, and you damn well better have a 1/5 divider, cause if you don't your PCI will be at 50mhz!!!! :Q VERY BAD for hard drives! 40 mhz is pretty bad too btw.

Have fun and tell us what method you are using to unlock..

 

[zsouthboy]

Oh, btw, your gains should be good enough to justify doing it. Even if you end up with a slower proc(e.g. 9 x 200), your computer will be faster.

 

[Necrolezbeast]

It seems like a good idea, although you are going to be running your pci/agp at 40mhz...a little too high for my liking, and you will probably also have to up some voltages. I would try it if I had the RAM to make it there, but I doubt you'll have success without a 1/6 divider...possibly with kt400a?

 

[Sean453]

I'm not sure how the dividers work but wouldn't 200 MHz FSB bump the PCI/AGP back to 33/66? Because I noticed that when the bus speed is 133 it sets them at 33/66, 134-165 it overclocks agp and pci, and then at 166 FSB it goes back to 33/66. At 175 FSB (currently running) it says it will be 70/35. So wouldn't it drop back to 33/66 at around 200 MHz? I can't find any options for dividers in my Bios. Is there any program to check the PCI/AGP bus speeds within windows?

 

[Necrolezbeast]

No, you would need a 1/6 divider to get it to set back to 33/66 when you hit 200. There is no current mobo with a 1/6 divider, but I think the kt400a will come with one. How the divider works: (1/4 divider)133/4 = 33, (1/5 divider)166/5= 33, (1/6 divider)200/6 = 33. Your current mobo has the 1/5 divider but is not accessible in bios, it turns on automatically when you set it to 166fsb.