relationships between FSB speed and RAM speed?

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thejanglytemblor

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Mar 14, 2014
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i will be getting my first desktop pc from my uncle, and doing some necessary upgrades. i WILL be doing some overclocking, and this will be my first time doing it. however after an hour or two of research, i was left looking deeply confused. i read several pages, and i have no idea how stuff is multiplied, and i also have no idea what multiplier intel uses to rate the FSB speed. when i read the specs of my processor, it said that the FSB is set at 1333mhz. but how has that been multiplied? what is the original clock speed? how is ddr3 ram frequency multiplied by the FSB?
here's the specs of the pc:
- Lenovo ThinkCentre M58P 7220 AGU
- 8GB ddr3 1600 (for overclocking headroom.)
- Intel core 2 duo e8400 (with 9x multiplier)
- Intel Q45 Express chipset
- MSI Geforce gt 640 1GB GDDR5 low profile GPU
- windows 7 home premium (after upgrade from vista home premium)
just in case you think i dont know about the locked bios, i will be using setFSB to overclock the fsb.

any help is greatly appreciated. :)
 
Solution
nukemaster
Your base bus speed will be 333.3 x 9
Memory(lets say the base is 1333) will be 667

pushing it will have the exact ratio on memory.

so a cpu of 400(1600) will push the memory to 734(1468)

This is the nice thing about a non locked bios you can set the memory to 1066 and then not worry about pushing it.

Please note other buses like PCI-e may or may not be linked on this board. Too much push on the pci-e controller can cause drive corruption and video issues.

Also make sure the memory is 1.5 volts since you will be unable to change that.
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nukemaster

nukemaster

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Nov 23, 2004
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Your base bus speed will be 333.3 x 9
Memory(lets say the base is 1333) will be 667

pushing it will have the exact ratio on memory.

so a cpu of 400(1600) will push the memory to 734(1468)

This is the nice thing about a non locked bios you can set the memory to 1066 and then not worry about pushing it.

Please note other buses like PCI-e may or may not be linked on this board. Too much push on the pci-e controller can cause drive corruption and video issues.

Also make sure the memory is 1.5 volts since you will be unable to change that.
 
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thejanglytemblor

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Mar 14, 2014
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thank you so much nukemaster, this is very helpful.
 
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