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MSI front side bus


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#1
brettt777

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i recently upgraded my PC from SD133 RAM to PC2700 DDR RAM. my MSI main board is suppose to go up to a 533mhz fsb. how do i get it to do that? if i increase the RAM speed, the multiplier changes and i end up with a slower speed. and, it only goes up to 200mhz. the RAM is suppose to go to 333mhz, the cpu and MB will go to 533mhz. how do i take advantage of the faster RAM?
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#2
admin

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A Pentium 4 system is "quad pumped", meaning four bits of data are exchanged every clock cycle. In other words a 533mhz system operates at a Front Side Bus speed of 133mhz. This is what your FSB setting should be in your BIOS 133, any more and you're overclocking. <_<
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#3
brettt777

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so if my fsb stays at 133mhz, what's the point of having 333mhz pc2700 RAM? how do i take advantage of the faster RAM?
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#4
admin

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Sorry, there's no benefit, unless you're overclocking, or potentially to use in a future system. Be sure you have your latencies set low.
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#5
brettt777

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so in my system, putting DDR333 RAM in place of the sd133 RAM has no benefit whatsoever? what's the point of using the faster RAM? is there a system that actually does use it?
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#6
admin

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Some AMD systems run at 166mhz FSB and require 333mhz RAM (PC2700). Faster memory often allows for lower latencies which will increase system performance, or some people overclock their front side bus to increase the CPU clock and memory bandwidth, which requires faster memory.

See this article: http://www.devhardwa...dth-And-Timings
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