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Frontside bus speed question?

A

AKTHOR

n00b
Joined
Feb 18, 2004
Messages
55
I have a P4 2.8 800MHz FSB

Why in my bios does it say 200MHz FSB? Is this right?

With a my CPU and cas2 PC3200 RAM what should the bus settings be?
 
800 mhz = 200 mhz x 4 = processor effective FSB
400 mhz = 200 mhz x 2 = DDR effective FSB

intels have "quad pumped FSB" which is basically like DDR, but 4 times and only for the proc. AMD's can run at 200 mhz FSB, which times 2 is 400 mhz, aka PC3200.
 
Most people who are new to building computers insist on making this a hard concept. A hint would be to think of everything in terms of it's "real" bus speed. You processor has a real bus speed of 200 Mhz, and so should your memory. So, your divider in the BIOS should be 1:1.

As mentioned above, the processor quad-pumps it, giving you the marketing term of 800 Mhz. DDr doubles it, giving it the marketing term of DDR400 (400 Mhz) aka PC3200.
 
Originally posted by djnes
Most people who are new to building computers insist on making this a hard concept. A hint would be to think of everything in terms of it's "real" bus speed. You processor has a real bus speed of 200 Mhz, and so should your memory. So, your divider in the BIOS should be 1:1.

As mentioned above, the processor quad-pumps it, giving you the marketing term of 800 Mhz. DDr doubles it, giving it the marketing term of DDR400 (400 Mhz) aka PC3200.
Click to expand...

Its easy for people in the know to make comments, i am sure at one time or another you didnt know "everything"
 
Originally posted by djnes
Most people who are new to building computers insist on making this a hard concept. A hint would be to think of everything in terms of it's "real" bus speed. You processor has a real bus speed of 200 Mhz, and so should your memory. So, your divider in the BIOS should be 1:1.

As mentioned above, the processor quad-pumps it, giving you the marketing term of 800 Mhz. DDr doubles it, giving it the marketing term of DDR400 (400 Mhz) aka PC3200.
Click to expand...

I'd perfer a 200 mhz fsb with a higher IPC. Hence I'm an AMD d00d. 3 AMD systems, a Dual PII, and a PIII. Although the Pentium M line looks pretty interesting...
 
Originally posted by Syphon Filter
Its easy for people in the know to make comments, i am sure at one time or another you didnt know "everything"
Click to expand...

No, actually it's easy to figure out when you are willing to put a little effort into it and do some reading. It's not hard at all...in fact, my fiancee knows very little about computers, but she got online and found out what speed DDR her parents computer took, and bought them an upgrade. Many things in life are easy if your willing to put effort into it, especially building and configuring PCs.

A little reading and some 3rd grade math go a long way.
 
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