Same clock speed, different FSB. Does it matter?

[paulsiu]

I have a Mobile Athlon XP 2600. According to the spec, it should be run at:

133 Mhz x 15x = 1995 Mhz

Normally a non-mobile Athlon XP 2600 is running at 166 Mhz or

166 Mhz x 12x = 1992 Mhz

Since my Mb support 200 Mhz and I have DDR400 RAM, I decided to bump up the FSB to 200 Mhz and run the cpu at 10x or

200 Mhz x 10x = 2000 Mhz

Does the FSB matter to the Athlon XP-M? It's still running at the same speed that it was spec to run. I have just simply raise the FSB instead. What are the side effects?

 

[Jeff7181]

A higher FSB is better, but always keep the RAM in sync. Don't run a divider with an Athlon XP.

Check this out and see if that helps you.

 

[imverygifted]

some memory cant handle a high FSB, so the only downside is possible instability and more heat is created. you may have to raise the voltage on your dram for the high FSB to be stable and possibly your vcore if your overclocking your processor as well.

 

[SNM]

Originally posted by: paulsiu
I have a Mobile Athlon XP 2600. According to the spec, it should be run at:

133 Mhz x 15x = 1995 Mhz

Normally a non-mobile Athlon XP 2600 is running at 166 Mhz or

166 Mhz x 12x = 1992 Mhz

Since my Mb support 200 Mhz and I have DDR400 RAM, I decided to bump up the FSB to 200 Mhz and run the cpu at 10x or

200 Mhz x 10x = 2000 Mhz

Does the FSB matter to the Athlon XP-M? It's still running at the same speed that it was spec to run. I have just simply raise the FSB instead. What are the side effects?

That looks like stock speeds for everything, if you ask me. 😉

 

[superkdogg]

Playing devil's advocate here, but why not speed it up a notch or two higher on the multiplier. Those CPU's usually do faster than that while using a reasonable amount of voltage.

But to the OP, yes greater FSB is better for performance at the same speed.

 

[Dan G]

I heard that FSB was the sigle most important fatcor. I dunno if that applies to XP-M's though. Dan

 

[imported_whatever]

Testing at FSB 133 compared to FSB 200 got me something like 2.5k on 3dmark01, so it is definately a lot faster (at the same clock speed too)