Thoughts on Corsair memory
- Thread starter yoongkc
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lovely?
Active Member
actually he'd need an fsb of just 1066, because true ram speed is half. so since his ram is actually running at 533mhz, his fsb only needs to be 1066 to run it at full speed.
and personally i prefer reaper, but maybe thats just because i have a set of PC6400. but its great stuff for overclockers!
and personally i prefer reaper, but maybe thats just because i have a set of PC6400. but its great stuff for overclockers!
lovely?
Active Member
you were right about multiplying one of the speeds, but it was not the fsb. you take the actual fsb speed of 1066 and the actual ram speed of 533, and multiply the ram speed by 2. they match up evenly so you get a 1:1 ratio.
i can understand how you got confused though, you were only off by a little.
Timo
New Member
I seem to be unclear when saying this all the time, to say it correct I would have to say:
Your bus speed, in general on a newer Intel, would be 333mhz... And then your FSB would be 1333 because the FSB is always counted in Quadpumped with newer models (most not too much older models tend to have Quadpumped FSB's as well).
And to run your Memory at a 1:1 ratio with the FSB your Memory would need to be half the speed of the (Quadpumped) FSB. So if your Bus speed is 333Mhz then that would been you have a 1333Mhz FSB, and half of that would be 667Mhz.
So for a standard clock Intel of the newer series you would need to have a 667Mhz DDR2 Memory to run 1:1. And with some models you would need 1066/2= 533Mhz DDR2 Memory.
Your bus speed, in general on a newer Intel, would be 333mhz... And then your FSB would be 1333 because the FSB is always counted in Quadpumped with newer models (most not too much older models tend to have Quadpumped FSB's as well).
And to run your Memory at a 1:1 ratio with the FSB your Memory would need to be half the speed of the (Quadpumped) FSB. So if your Bus speed is 333Mhz then that would been you have a 1333Mhz FSB, and half of that would be 667Mhz.
So for a standard clock Intel of the newer series you would need to have a 667Mhz DDR2 Memory to run 1:1. And with some models you would need 1066/2= 533Mhz DDR2 Memory.
lovely?
Active Member
hold on let me get my head on straight.
ok. earlier i was running my e4500 at an fsb of 500 in the bios. that equals 2000mhz, so im thinking both of us were wrong.
you take the fsb before quadpump, double that and you get your memory. not after quadpump like you thought, and its not identical to your fsb like i thought.
EDIT: god i think i misunderstood your first post. you were right after all werent you? when you said 'half of your fsb' i got confused even more.
sorry m8 i had the right thought but i said it completely wrong.
ok. earlier i was running my e4500 at an fsb of 500 in the bios. that equals 2000mhz, so im thinking both of us were wrong.
you take the fsb before quadpump, double that and you get your memory. not after quadpump like you thought, and its not identical to your fsb like i thought.
EDIT: god i think i misunderstood your first post. you were right after all werent you? when you said 'half of your fsb' i got confused even more.
sorry m8 i had the right thought but i said it completely wrong.
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Hey guys,
Sorry about it, but the terms are getting a bit too technical. Mind if I check something?
First, I think I layout my computer specs that I hope to purchase:
Mainboard: Asus RamPage Formula (Intel chipset X48)
Graphic card: XFX 9800 GTX 512MB (either XT version or Black version)
CPU: Intel Q9450 (45nm, 1333MHz, 2.66GHz)
Given these devices, what is the optimum RAM specs that I should use? Like whether what should the operating frequency be?
Next question is that the code on the RAM like 6400, 8500. How does this value corresponds to the operating frequency? From my observation, 6400 = 800MHz, 8500 = 1033MHz, am I right?
The next thing I hope to check is that does it make a difference if we place 4 pieces of 4GB RAM or 2 pieces of 2GB RAM to obtain 4GB memory system? If there are differences, what are they?
Sorry for the so many many questions. Hope to hear from you guys soon!
Thanks!
Sorry about it, but the terms are getting a bit too technical. Mind if I check something?
First, I think I layout my computer specs that I hope to purchase:
Mainboard: Asus RamPage Formula (Intel chipset X48)
Graphic card: XFX 9800 GTX 512MB (either XT version or Black version)
CPU: Intel Q9450 (45nm, 1333MHz, 2.66GHz)
Given these devices, what is the optimum RAM specs that I should use? Like whether what should the operating frequency be?
Next question is that the code on the RAM like 6400, 8500. How does this value corresponds to the operating frequency? From my observation, 6400 = 800MHz, 8500 = 1033MHz, am I right?
The next thing I hope to check is that does it make a difference if we place 4 pieces of 4GB RAM or 2 pieces of 2GB RAM to obtain 4GB memory system? If there are differences, what are they?
Sorry for the so many many questions. Hope to hear from you guys soon!
Thanks!
Hey i'm interest to buy that ram too because of its good value, is it a good ram?
I need it to give more room for my cpu so i can oc more, now im stuck with 667mhz pc 5300 because im too afraid to oc that value ram of mine.
Timo
New Member
If you want to use ram that is running 1066mhz on a ratio of 1:1 you'd need to have a Quadpumped (so that is FSB*4) FSB of 2132Mhz... This is basically unheard of.
So I'd take cheaper but better quality PC6400 ram which runs at 800mhz. Then you'd only need your Quadpumped FSB at 1600mhz... Which is basically an FSB of 400. So with a Q9450 at the stock multiplier you'd run 400*8=3.2Ghz and a Quadpumped FSB of 1600mhz. This way it will run a 1:1 ratio... Ofcourse you can make the multiplier one lower to 7. Then it will run 400*7=2.8Ghz which is good as well and it will still run at 1600mhz Quadpumped FSB so it will still be a 1:1 ratio
So I'd take cheaper but better quality PC6400 ram which runs at 800mhz. Then you'd only need your Quadpumped FSB at 1600mhz... Which is basically an FSB of 400. So with a Q9450 at the stock multiplier you'd run 400*8=3.2Ghz and a Quadpumped FSB of 1600mhz. This way it will run a 1:1 ratio... Ofcourse you can make the multiplier one lower to 7. Then it will run 400*7=2.8Ghz which is good as well and it will still run at 1600mhz Quadpumped FSB so it will still be a 1:1 ratio