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How to use dividers BUT still get DDR400 RAM.

post #1 of 8
Thread Starter 
Ok, first- What is a divider?

A divider basically takes the stress off your RAM. Meaning us value guys will have a chance . When you raise FSB, your RAM is raised too. Meaning your RAM is overclocking! This is OK for more expensive RAM. But for value, its a problem.

So we resort to using a divider, this takes the stress off the RAM and sets a ratio to the RAM.

Most motherboards have these dividers- 133-266-333-400. Im going to be looking at 2, these are 266 and 333.

The problem with dividers is that they leave you with awkward ram speeds, such as 176 or 169 (X2 to get RAM speed, because DDR= X2 ). I want my DDR 400 for BF2 and my CPU OC for value!

So, for the exact speeds-

For divider 333, you need FSB at 241.

For divider 266, you need FSB at 302.

Here is some screens-



Notice the FSB, I have my Vcore set to auto so I dont know why its doing that!



Now the ram, its at 200mhz!


Thanks for reading.

P.S. If you have different dividers (I.E. DFI boards) this is useful if you havent heard of it already-

http://math.gogar.com/athlon64.cgi
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post #2 of 8
Quote:
Originally Posted by Noni
Hi guys, A little article because I want more REP. Lol Ill be honest.

Ok, first- What is a divider?

A divider basically takes the stress off your RAM. Meaning us value guys will have a chance . When you raise FSB, your RAM is raised too. Meaning your RAM is overclocking! This is OK for more expensive RAM. But for value, its a problem.

So we resort to using a divider, this takes the stress off the RAM and sets a ratio to the RAM.

Most motherboards have these dividers- 133-266-333-400. Im going to be looking at 2, these are 266 and 333.

The problem with dividers is that they leave you with awkward ram speeds, such as 176 or 169 (X2 to get RAM speed, because DDR= X2 ). I want my DDR 400 for BF2 and my CPU OC for value!

So, for the exact speeds-

For divider 333, you need FSB at 241.

For divider 266, you need FSB at 302.

Here is some screens-



Notice the FSB, I have my Vcore set to auto so I dont know why its doing that!



Now the ram, its at 200mhz!


BTW the opteron I have is for sale. Please PM me for details. Its a CABNE. UK ONLY.

Thanks for reading.

P.S. If you have different dividers (I.E. DFI boards) this is useful if you havent heard of it already-

http://math.gogar.com/athlon64.cgi
#1 This should be a FAQ
#2 You CANNOT ask for reps at any time in any way
#3 You cannot sell anything; or advertise anything you have for sale until you have enough reps.
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post #3 of 8
Thread Starter 
Done,

Do you have anything good to say?

LOL! .
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post #4 of 8
Quote:
Originally Posted by Noni
Done,

Do you have anything good to say?

LOL! .
He did compliment you with the FAQ recommendation and ...
His warnning info was mearly looking out for you too

BTW... with enough safe voltage you should be able to get the RAM to run beyond the 200MHz some.
    
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post #5 of 8
Thread Starter 
Bump, any chance of sticky? Who do i send it to?

Thanks.
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post #6 of 8
I think we may already have a FAQ on this. Also, dividers work both ways. You can push the RAM harder than the CPU as easily as you can slow it down.
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post #7 of 8
Thread Starter 
Sorry, so this will not be a FAQ? This thread is just hovering about then .

Thank you.
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post #8 of 8
Quote:
Originally Posted by Noni
Sorry, so this will not be a FAQ? This thread is just hovering about then .

Thank you.
The FAQ section is currently undergoing some work, so there are no new FAQs being accepted at this time. If you do plan on submitting this in the future, you'll need to do some additional work. As I mentioned above, dividers go both ways, i.e. you can run the RAM slower than the CPU as you mentioned and you can also run it faster than the CPU. You're using the term FSB incorrectly. FSB for P4s is 4 times the external clock speed of the system. FSB to my understanding, has no meaning for newer AMDs. HTT is the mechanism by which everything is tied together. Your concepts are sound, but read up a bit on the differences in the various technologies. You can post drafts of your proposed FAQ for comments and then submit it for consideration once the section is back up and running full steam.
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