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1333 FSB CPU, but only 800MHz RAM?

 
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sylvester



Joined: 07 Jan 2008
Posts: 15

PostPosted: Sun Apr 12, 2009 2:53 pm    Post subject: 1333 FSB CPU, but only 800MHz RAM? Reply with quote

Hello All;

With the process of Overclocking aside, is there any point to paying for a CPU with 1333MHz FSB but only using 800 to 1066 MHz DDR2 RAM (even as Dual Channel)?

Doesn't the CPU have to wait around while the RAM does its thing?

Doesn't the system run at is slowest component's speed?

Is it because there are CPU related tasks and RAM related tasks?

What am I missing here?

Thanks.
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Cat-tranz



Joined: 10 Apr 2009
Posts: 195
Location: England UK

PostPosted: Sun Apr 12, 2009 4:32 pm    Post subject: Reply with quote

Hi sylvester

You don't say what your CPU is ATM can you post your full system spec Smile

Also see my post > Here
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sylvester



Joined: 07 Jan 2008
Posts: 15

PostPosted: Mon Apr 13, 2009 2:21 pm    Post subject: Reply with quote

I'm actually working on my next build. I'm looking at an ASUS P5QL-PRO mobo and the intel E8400 CPU. I don't need, nor want to pay for, any faster CPU.

My question relates to, why do most mobo's have a FSB speed that is higher than the supported RAM speed?
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Cat-tranz



Joined: 10 Apr 2009
Posts: 195
Location: England UK

PostPosted: Mon Apr 13, 2009 3:37 pm    Post subject: Reply with quote

Because dividers are used within the system read more > Here
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surreypcsupport.com



Joined: 02 Dec 2008
Posts: 127
Location: surrey

PostPosted: Wed Apr 22, 2009 9:43 am    Post subject: Reply with quote

Memory dividers bridge the gap between FSB speed and memory speed.
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Cat-tranz



Joined: 10 Apr 2009
Posts: 195
Location: England UK

PostPosted: Wed Apr 22, 2009 10:11 am    Post subject: Reply with quote

Hi surreypcsupport.com

And - It is possible to run FSB and memory clock at different clock speeds, within limits of the Motherboard and Chipset. So, settings termed as Memory Divider are expressed in a (ratio) which control the difference in memory clock rate and FSB speed.
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