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CPU to RAM ratio??? - Page 2

post #11 of 16
Ok then that means that your RAM can run faster than your CPU at stock this is good. In your Bios you can crank your CPU speed up 237Mhz before even looking at changing timmings or the divider on the RAM.

So if your CPU will do 237Mhz FSB with the cooling you have then go right ahead and at that point you will have a 1:1 divder. Now if you want to get higher than 237 to say 250+ then you may need to play with RAM timmings and voltages on the CPU and maybe RAM. Make sure that you have proper cooling and take your time.

If I have your hardware correct than you will be able to get to 3.3 before any RAM adjustment need to be made. Set your RAM at stock and start OCing your CPU till you become unstable, if you are below 237Mhz then it is your CPU limiting your OC and you will need to up your CPU voltage. If you hit like 245 then you will need to loosing timmings a little bit and up your CPU voltage. Keep in ming when upping voltages do it in the smallest incriments.
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post #12 of 16
Thread Starter 
currently I'm at 3.920Ghz... Voltage is set at 1.375 for the cpu, and the vdimm is at 2.1, the highest my board allows. I am currently utilizing the cpu/mem tweaker, where I can alter both. You are correct, at 3.29, I had to screw with all the other options to get it to go higher. Guess I gotta tweak with it some more. Also, my board is ****e, and is supposedly known for crashing at 250Mhz front side bus...
    
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post #13 of 16
So if you have a 280Mhz FSB from 200 then thats a great OC. You had to set a divider or no, my G.skill can run up to 300Mhz before I need a divider. It seems like my CPU maxes out before my RAM lol.
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post #14 of 16
Thread Starter 
I think my board automatically sets the divider. 860 is the highest it will let me set my mem at this current fsb setting. But, If I were to set it at cpu tweaker option, the one without the manual mem tuning, it shows down where the mem speed is displayed that its target speed is 933Mhz for the ram... I guess thats why it was so confusing for me... Time to get the p5b and get a Conroe...New school water cooling too, I finally hit 38C under load with the old school setup I have now...

Since you have same brand mobo, and I was wrong, I have American Megatrends bios too, where is the option to set ram divider, what should I set it at, and what will the option be labeled as? I really appreciate the great instructions, wish I has contacted the right person 10 days ago when I first started tweaking my first pc...

Edit Update: Tried exactly what you said, set the memory down to 560, and even the windows startup seems faster. Don't know why, but maybe it's just psychological. Will update my 1m superpi score to see difference, and check temps too... I love this forum.

Edit Update 2: At 1.45V Vcore, I hit 4.025... I thank you for your skills in explanation to a noob. Rep+1. Thank you, thank you, thank you...
    
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post #15 of 16
Thread Starter 
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post #16 of 16
I have a AMI BIOS not phenix although the option to set the divide is in the same place as the CPU FSB cofigurer. If there is a place where you can manually sellect your RAMs default speed then that is where you set a divider.

In my case I go to the "Advanced" tab and go to where I set the FSB Mhz speed. I set my FSB speed option to manual, and my RAM speed to its default 200mhz. Now at this point everything would be stock... CPU is at 200Mhz x14 and RAM is at 200Mhz x2 (DDR400). Now I up my FSB at 5mhz incriments and because I set my RAM at 200 my CPU and RAM will OC at a 1:1divider all the way up till I manually set my RAM default speed down to 166.

I hope that I am clear enough... it all makes sense in my head but that doesn't mean it makes sense lol. Just look for a place to set your RAM speed and set it to 233 or 237 which ever is the stock spd

EDIT: I just looked at your profile and noticed that you use water to cool right? Also I noticed your idle temps are at 27C...thats my load temps on air in a 73*F room. Ijust thought it was funny
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