P4 Memory Bus Speed with 800 FSB and PC3200 Mem

Second I am fixing my Brother's Computer. Here is what I got confused.
Here how it started. He said his MB died; he will ship me the computer and I can
replaced the MB and save his Data AKA Porn . I said ok no Bigge. I bough the MB
for TIME saving. :hmm: So got him an Asus P4P800-VM MB
Upon my diagnostic I found out; his ECS MB is GOOD :w00t:; His retail P4 prescott 3.2 is BAD
I crossed check with known Good CPU. Any rate it getting replaced.
He have 2 OCZ PC3200 512 a Modules. Running in a Dual Mode.
Mean while I installed my spare CPU which is P4 2.6 Gig 800FSB.
After installing every thing like OS and Benchmark programs; I have notice some thing real odd
3D mark see FSB as a 200MHZ FSB


Asus WebSite where they compare the MB its says it only supports 533/400


When you pull MB specification it says it can support 800/533/400.

I though may be 3D mark is goofy so I ran program on my computer.
Its says I am running 800 FSB

My Dell have 875Chipset; with PC3200 Memory/ P4 with 800FSB.

So guys I am so confused now. It making no sense.
I use think in P4 with 800FSB memory bus is quad-pumped. The real frequencies are 100/133/200 MHz; in actual data pahses.

No need to be confused, its not abnormal for manufacturers to have contradictory material.
Especially given the fact that with BIOS updates the capability of a particular motherboard will change.
Like you said 200 Mhz FSB is actually quad-pumped to have 800 Mhz.
And DDR memory is actually Doubled so 200 Mhz is refered to as DDR400.

Originally Posted by bmaz

No need to be confused, its not abnormal for manufacturers to have contradictory material.
Especially given the fact that with BIOS updates the capability of a particular motherboard will change.
Like you said 200 Mhz FSB is actually quad-pumped to have 800 Mhz.
And DDR memory is actually Doubled so 200 Mhz is refered to as DDR400.

Finally I say I will notice side by Side; so
I did the Remote Desk and run the Everst; I got shocked to notice
Bus Width is 64Bit on Asus :eek4:

Then I thought I migh have not installed the Memory in right Bank
so I confirmed the Memory Banks and Bios Post Screen
On Post screen it shows its running in Dual mode

and what hell is Tile Mode ?

Intel CPU is 800FSB because of the quad 4x200Mhz = 800Mhz. What ever you do with the intel memory , just time 4.

My system is 3Ghz ( 15x200Mhz = 3.0Ghz , 800FSB ), but I ran my RAM @ 250Mhz so the system now is running @3.75Ghz (15x250Mhz - 3.75Ghz, 1000FSB ). That's why if you want to run Intel, you need high speed memory in order to get the higher FSB.

I hope I don't confused you more.

Originally Posted by trinh

That's why if you want to run Intel, you need high speed memory in order to get the higher FSB.

That's not quite true. You can always use a memory divider to lower the speed of the memory in comparison to the Front Side Bus speed. You incur a small performance hit but it can be done very easily.

Originally Posted by trinh

Intel CPU is 800FSB because of the quad 4x200Mhz = 800Mhz. What ever you do with the intel memory , just time 4.

My system is 3Ghz ( 15x200Mhz = 3.0Ghz , 800FSB ), but I ran my RAM @ 250Mhz so the system now is running @3.75Ghz (15x250Mhz - 3.75Ghz, 1000FSB ). That's why if you want to run Intel, you need high speed memory in order to get the higher FSB.

I hope I don't confused you more.

I dont want to do OverClock. Cause this Machine is Mission Critical Aka Porn Machine
My brother just want Max out what he have paid for it.