ok really stupid question about ram

[SpeedEng66]

sorry but its a dumb question

I have a Dell 8250
it's a P4 2.53 northwood
with pc1066 RDRAM
FSB of chipset is 4*133 (532mhz data rate)
Max FSB speed/ max mem speed 4*133 / 2*532

my buddy is giving me 2 128mb pc800 rdram for free off of his dell 8100
will this work?

Thanks in advance

 

[MercenaryForHire]

If it does work at all, your existing PC1066 will slow down to PC800.

- M4H

 

[Fullmetal Chocobo]

How does the RAM timings / FSB work with AMD systems then? PC3200 DDR on a 1GHz FSB?

 

[SpeedEng66]

yea I know that much but what got me all confused is the FSB = 532mhz in sandra

so wouldnt pc800 be more than enough (by 268mhz or am I just really confused???)

 

[Matthias99]

Originally posted by: Fullmetal Chocobo
How does the RAM timings / FSB work with AMD systems then? PC3200 DDR on a 1GHz FSB?

It doesn't have a 1Ghz FSB -- it doesn't have an FSB at all. It has an onboard PC3200 DDRRAM controller, and a 1Ghz HyperTransport link to the Northbridge (which has NOTHING to do with the memory speeds).

It's a whole different ballgame, which I would hope people might have realized in the last two years...

 

[Fullmetal Chocobo]

Originally posted by: Matthias99

Originally posted by: Fullmetal Chocobo
How does the RAM timings / FSB work with AMD systems then? PC3200 DDR on a 1GHz FSB?

It doesn't have a 1Ghz FSB -- it doesn't have an FSB at all. It has an onboard PC3200 DDRRAM controller, and a 1Ghz HyperTransport link to the Northbridge (which has NOTHING to do with the memory speeds).

It's a whole different ballgame, which I would hope people might have realized in the last two years...

Okay. I haven't messed with AMD before recently ordering parts for the wife's machine. I have been running Xeon's for a long time now. Thanks for the info though.

 

[SpeedEng66]

well im still confused!! lol I got confused when DDRAM came out..
about that time I stayed away from computers

 

[Matthias99]

Originally posted by: SpeedEng66
yea I know that much but what got me all confused is the FSB = 532mhz in sandra

so wouldnt pc800 be more than enough (by 268mhz or am I just really confused???)

Intel uses a 'quad-pumped' FSB, which (among other things) gives them nice big numbers to throw around. Basically, the FSB runs at four times the speed of the memory.

A "533Mhz FSB" on an Intel/P4 platform is running the RAM at 133Mhz (or DDR266). The "800Mhz FSB" models run the RAM at 200Mhz (or DDR400/DDR2-400). The "1066Mhz FSB" has the memory running at 266Mhz (DDR2-533). The "800Mhz" and "1066Mhz" models with RDRAM use PC800 and PC11066 RDRAM, respectively.