333 MHz FSB or 400 MHz FSB Whats is the Differenc?

[snowsix]

I've bin shopping for a mobo and I noticed that some mobo have 266/333 MHz FSB and some have 200/266/333/400 MHz FSB. I have a 1333 AMD CPU and the FSB of the chip is 266. In the future I would like to upgrade my CPU. What advantage would I have to get a mobo that can go up to 400MHz? Wen they come out with a AMD chip that has a FSB of 400, will I be able to us that chip on a mobo that has a FSB of 333? If Yes, will it slow down the FSB of the CPU to 333?

<P ID="edit"><FONT SIZE=-1><EM>Edited by snowsix on 05/07/03 09:17 PM.</EM></FONT></P>

 

[FO_SHO]

most mobo's right now will not support the new upcoming 400FSB bartons, except like the A7N8X rev 2.0 and so on. You're probably better off getting a board that has *official* 400FSB support so that you are guarenteed the new 400 bartons will work. I don't think you could use a 400FSB barton with like say a KT333 chipset.

 

[mito]

fo_sho,

please explain further your statement. thank you.



/\/\ito

 

[TKH]

the 266/333MHz FSB is VIA KT400/KT400A chipset mobo while the 200/266/333/400MHz FSB is nVidia nForce2 chipset mobo. Your current CPU will run fine on both but if you are considering to upgrade to 400MHz FSB CPU, you better get an official 400MHz FSB supported nForce2 mobo like Asus A7N8X Deluxe PCB Rev2.0, Abit NF7-S PCB Rev2.0, Epox 8RDA3+, MSI K7N-Delta ILSR etc. I really hope that all previous nForce2 mobo can run 400MHz FSB CPU at 333MHz FSB then we just overclock it back to 400MHz FSB, this should give same result but if this do not work we can't complain anything.

Anything that can go wrong, will go wrong.
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[rebturtle]

The biggest difference you'll notice is that you will be able to run your CPU in sync with DDR 400 RAM. As for truningg to use a 400 MHz Chip in a 333MHz board, I think you were right in your guess that it would be limited to a 333MHz FSB and severely hamper CPU performance. Unless you think you'll need the built-in Serial ATA/RAID, I think an A7N8x Basic (version 2.0 or higher) would make you happy. They can be had now for under $100, and with BIOS ver. 1004 and above support up to 600MHz FSB (100,133,166,200 regular, overclockable to 300).

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<A HREF="http://www.geocities.com/rebturtle/TurtleTech.html" target="_new">My System</A>

 

[snowsix]

Actually, I'm obligated to buy a mobo with RAID. The mobo that I had in my computer died and I was using RAID 0. Unfortunately I hadn't made a recent backup and there some info that I need to get. I Don't know anybody that has a RAID mobo otherwise I would of borrowed his mobo and mad copy's of what I have on my hard drive then just get a mobo with out RAID.