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1:1 Timing

post #1 of 33
Thread Starter 
okay what i dont get is what u guys refering to as 1:1 timing cuz in my bios it shows my QFSB say 1600mhz theres no way i can make my ram run at 1600mhz...unless u guys are refering to sync mode which is running it as 800mhz as the fsb is actually 400mhz and as i have dual channel my fsb is also at 400mhz?


thanks for any help im a noob!
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post #2 of 33
the RAM is running at the same exact speed as the processors FSB

EX 1:1 RAM 800mhz CPU 800mhz FSB
2:1 Ram 400mhz CPU 800MHZ FSB

EDIT: this is for ddr1 not the ddr2 that you have
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post #3 of 33
Quote:
Originally Posted by kanny View Post
okay what i dont get is what u guys refering to as 1:1 timing cuz in my bios it shows my QFSB say 1600mhz theres no way i can make my ram run at 1600mhz...unless u guys are refering to sync mode which is running it as 800mhz as the fsb is actually 400mhz and as i have dual channel my fsb is also at 400mhz?


thanks for any help im a noob!
You're on the right track....

The basics....

Intel CPUs use a 'quad pumped' FSB, thus the external frequency when running at 1600MHz is 400MHz.

DDR2 RAM is Double Data, and DDR2 800 has an external frequency of.... you guessed it! 400MHz.

Some math: 400 = 400, thus we're running 1:1

And yes, some BIOSes refer to that as 'sync mode'
    
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post #4 of 33
Thread Starter 
is it better or something cuz im curent running my quad pumped at 1466mhz and my ram at 1100...is the extra fsb gone to waste? shud i juz lower it down to tighten timings?
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post #5 of 33
Yes
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post #6 of 33
Depends.

Intel rig generally prefer high bandwidths and don't care so much about timings. Probably the higher bandwidth will be beneficial to you.

The one exception is if yuo can force the RAM to run at 1T at the lower speed... Your motherboard does allow you to set the command rate. Try if it will run on 1T (no guarantees on that). If so, get the tighter timings and lower bandwidth. If not, then stick with the higher bandwidth.
    
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post #7 of 33
Quote:
Originally Posted by iampoor View Post
Yes
No. the extra RAM speed will help. trust me.

edit: you may be right though....if he can run it at 1T which he might cause his ram looks good.
    
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post #8 of 33
Quote:
Originally Posted by amd_hardsoftware View Post
No. the extra RAM speed will help. trust me.
Unless you can get it to run on 1T As stated in my previous post.
    
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post #9 of 33
Thread Starter 
umm currently doing 5-4-4-8 at 1100mhz on 2T i've done 3-3-3-8 b4 on t1 so i shud reduce my mhz to 733?
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post #10 of 33
Quote:
Originally Posted by kanny View Post
umm currently doing 5-4-4-8 at 1100mhz on 2T i've done 3-3-3-8 b4 on t1 so i shud reduce my mhz to 733?
Definately worth a try.

Try both, and run some benchies. I'd look what SuperPi 1MB does, and what you get in the CPU score of 3DMark06.
    
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