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Ram increases freq when i increase cpu freq

post #1 of 16
Thread Starter 
I am trying to overclock and i have an E4300 and right now i have it at 210 fsb and my ram was 400 before and now it is 420. Is it supposed to change?
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post #2 of 16
Yes, everything changes when you increase the CPU speed. The way to slow the RAM down is to use a divider. The ram speed is normally 2x the FSB unless you set a divider. Look around in your BIOS to find it.

Your RAM is capable of speeds upwards of 800MHz though, so there is no need for a divider just yet.
post #3 of 16
Thread Starter 
How do i get 1:1 if my ram speed is always double my cpu speed?
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post #4 of 16
Quote:
Originally Posted by darkspider View Post
How do i get 1:1 if my ram speed is always double my cpu speed?
Well in my bios I set the FSB to what I want, then change the DRAM frequency to my FSB for a 1:1 or choose a different frequency for a divider.
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post #5 of 16
Like he said, you set the divider in your BIOS. Right now it is set at 2:1, thus it will "always" be double the FSB, but if you change it to something like 1:1, then it will always equal your FSB.
    
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post #6 of 16
1:1 means that if your FSB is at 200MHz, your RAM will be at 400MHz, that's why it's called DDR (Double Data Rate).
post #7 of 16
Quote:
Originally Posted by RyGuy View Post
1:1 means that if your FSB is at 200MHz, your RAM will be at 400MHz, that's why it's called DDR (Double Data Rate).
You are wrong 1:1 means that when the FSB is 200Mhz the ram should also be 200Mhz. The OP is currently set at 1:2 or 200:400

The reason the ram is called DDR is because every Hz it send 2 "data".

OP go in your BIOS. Find the option to set the memory ratio. It should be in: Overclock Navigator

Set the overclock to manual (obviously you did this if you are changing the FSB)
And then the "System Memory Frequency" option will let you change the divider.

And WOW that motherboard is NOT made to be overclocked you only have 4 options. This is the difference between a good board and a junk board:
Auto: which should set the divider my itself.
533Mhz
667Mhz
800Mhz which is the 1:2 ratio in your case

Which setting are you at? Those are not actual Mhz speeds but only a mislabeling of the ratio. Those Mhz figures are ONLY valid if you run at stock speed. They did that because they think people can't count. (which they are right)

If you are set at 800 set it to 533 or Auto and see how it affect the memory. CPU-Z will show you your "real" memory ratio.
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post #8 of 16
Quote:
Originally Posted by Cyant View Post
You are wrong 1:1 means that when the FSB is 200Mhz the ram should also be 200Mhz. The OP is currently set at 1:2 or 200:400

The reason the ram is called DDR is because every Hz it send 2 "data".

OP go in your BIOS. Find the option to set the memory ratio. It should be in: Overclock Navigator

Set the overclock to manual (obviously you did this if you are changing the FSB)
And then the "System Memory Frequency" option will let you change the divider.

And WOW that motherboard is NOT made to be overclocked you only have 4 options. This is the difference between a good board and a junk board:
Auto: which should set the divider my itself.
533Mhz
667Mhz
800Mhz which is the 1:2 ratio in your case
Which setting are you at? Those are not actual Mhz speeds but only a mislabeling of the ratio. Those Mhz figures are ONLY valid if you run at stock speed. They did that because they think people can't count. (which they are right)

If you are set at 800 set it to 533 or Auto and see how it affect the memory. CPU-Z will show you your "real" memory ratio.
you mean 2:1 i wish there was a 1:2 if there was my e6300 wouldve been at 4ghz, ram limited me
post #9 of 16
Quote:
Originally Posted by Skullzaflare View Post
you mean 2:1 i wish there was a 1:2 if there was my e6300 wouldve been at 4ghz, ram limited me
No I mean 1:2.

FSB is listed first in those cases using the protocol established. It's easier to follow if you look in CPU-Z. Some board makers use DRAM:FSB but they should instead use FSBRAM because that is the FSB that affect the ram speed and not the opposite.
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post #10 of 16
(using DDR2 800)
If he sets the FSB from 266mhz to 350mhz and his ratio is 1:1 that would lower his DRAM from 400mhz to 350mhz? Would setting the ratio to 1:2 or other on the bios be the same as having a 1:1?

Obviously having FSB to 266 and DRAM run at stock 400mhz is literally useless since having greater DRAM than FSB offers no performance boost?

This is probably where dividers and multipliers come useful, but what if the multiplier is locked or something...
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