Memory Speed, Are they at 800 MHz FSB?

I just built a P4 2.8 HT system and just a dumb question about the memory. Is there anyway I can tell (In XP or some utility) if I am running at 800 MHz FSB with my memory?

And yes, I have 2 DDR400 sticks of memory installed.

Thanks so much.

If your 2.8 CPU is running at 2.8 Ghz, then you're running the memory at DDR400 speeds with an FSB of 800 Mhz (200 Mhz quadded).

If you're still paranoid, download CPU-Z..

Many thanks.

From the noob.