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ASUS P5N-E SLI 650i Thread - Page 185

post #1841 of 9621
Thread Starter 
8...9...10... Knockout! Kopi, down for the count!

Anyway... 11:24 is because you are running 182.5:400
No sense in that, at all. LoL.

Set RAM to 365 (182.5*2) to run 1:1
Then you can jump to, say 750FSB, 375 RAM (still 1:1) and that will get you 3.75Ghz
    
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post #1842 of 9621
Quote:
Originally Posted by artos72 View Post
umm..Kopi when you get up off the floor and can breath again would you mind expanding a little? Don't forget I'm the noob here...
Huge ass ratio.
2 OP pls nerf
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2 OP pls nerf
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post #1843 of 9621
Just such a random ratio...I could see stuff like 1:2, its double, 3:1, its a third, whatever. Normal ratios. But 11:24 LOL...so large numbers. Chose sync mode or whatever and run it 1:1
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post #1844 of 9621
Thread Starter 
I'll say it again, just to explain it better.
Our BIOS shows in FINAL values, as in what the effective FSB and RAM are.
DDR2-800 RAM is actually 400Mhz, run @ dual data rate, which means its really 800Mhz. But the 400Mhz is the # you use when referring to RATIO/DIVIDER.

As far as the CPU - Intel chips are QUAD pumped. Your D805's stock FSB is 533, which is REALLY 133.25Mhz * 4. For referencing RATIO/DIVIDER, you use the pre-quad pumped #, 133.25Mhz.

So, at STOCK settings, your CPU would run 133.25Mhz, and your RAM would run (in 1:1) @ 133.25Mhz. 133.25 is considered 133, same as 266.5 is considered 266Mhz.
Anyway, so in OUR bios, since it displays the EFFECTIVE speeds, you would set (@ stock) 533Mhz FSB and 266.5Mhz RAM.
For 1:1, the settings in our BIOS should always have the FSB DOUBLE the RAM number, because FSB = 2 * RAM speed, since the ram is only doubled and the CPU FSB is quadrupled.

Hope that clears some things up for you guys!
    
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post #1845 of 9621
Quote:
Originally Posted by dpawl31 View Post
I'll say it again, just to explain it better.
Our BIOS shows in FINAL values, as in what the effective FSB and RAM are.
DDR2-800 RAM is actually 400Mhz, run @ dual data rate, which means its really 800Mhz. But the 400Mhz is the # you use when referring to RATIO/DIVIDER.

As far as the CPU - Intel chips are QUAD pumped. Your D805's stock FSB is 533, which is REALLY 133.25Mhz * 4. For referencing RATIO/DIVIDER, you use the pre-quad pumped #, 133.25Mhz.

So, at STOCK settings, your CPU would run 133.25Mhz, and your RAM would run (in 1:1) @ 133.25Mhz. 133.25 is considered 133, same as 266.5 is considered 266Mhz.
Anyway, so in OUR bios, since it displays the EFFECTIVE speeds, you would set (@ stock) 533Mhz FSB and 266.5Mhz RAM.
For 1:1, the settings in our BIOS should always have the FSB DOUBLE the RAM number, because FSB = 2 * RAM speed, since the ram is only doubled and the CPU FSB is quadrupled.

Hope that clears some things up for you guys!
Right I got that much about the whole quad cpu/dual ram deal from our Oc'ing convo a few days ago when I started.

So my new question is...keeping this Kopi killing ratio is actually detrimental to my speeds and/or stability?

Will my RAM not be slower at a speed that is equal to my cpu? Or will I not notice a difference....
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post #1846 of 9621
Thread Starter 
Detrimental to stability - yes.
Detrimental to speed- no - unless its hurting stability, which inhibits your OC, which hurts your speed

1:1 is not the BEST option for a finalized OC.
1:1 just offers best stability to attain your HIGHEST CPU OC.
After which, getting a nice divider, close to 1:1 but still running RAM faster, will help.
400Mhz is a bit much for your 182.5Mhz FSB though, which is why Kopi was

I would run something like a 4:5 or 5:6 divider, so you are still close to 1:1 to stay stable, but running your ram a slight bit faster will give you a few more points in some benchmarks
    
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post #1847 of 9621
gotcha. thanks for the clarification. So now...in BIOS...

Since it displays my final FSB/RAM speeds (it does the whole quad/dual equation for me) Should I keep it linked, unlinked or synched?
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post #1848 of 9621
Thread Starter 
Linked will give you strange ratios. (1:1 in linked will give you 730:730, which is really 1:2, which is almost what you are at now!)
Sync is really 1:1.

Run it UNLINKED, and run something that gets you a good divider.
4:5 is decimal of 0.8. I SUCK @ math, but you'll need 182.5 divided by SOMETHING to give you a decial of 0.8. That will give you a 4:5 ratio. You may need to adjust your FSB a little to get a good number to divide into

*reminds me of algebra class, *
    
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post #1849 of 9621
wait...i have that lightbulb feeling in my head again.

Are you saying that I need to do the whole quad/dual equation and THEN enter the results into bios? All while keepnig the proper ratios?

EDIT - at a 730 FSB @ 1:1 i cannot get it to post...but at 750 FSB (in BIOS) @1:1 it posts just fine. My ratio is 1:2 in cpuz...blah. not sure why this works but a slower fsb does not
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post #1850 of 9621
Thread Starter 
Remember I said 1:1 linked in BIOS is really 1:2?
To stay 1:1, just take whatever your FSB is @ in BIOS, divide by 2, and enter that as your RAM speed.

For example: 730FSB / 2 = 365.
Enter 365 as your RAM speed in BIOS.

RAM: 365/2 = 182.5Mhz
FSB: 730/4 = 182.5Mhz

Effective 1:1!

750Mhz FSB (3.75Ghz) would be 750FSB and 362.5RAM, I forget if it rounds down or up... but try 363 if that doesn't work (if CPUZ shows something besides 1:1) try 362.
    
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