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can't overclock ram?

post #1 of 15
Thread Starter 
i'm trying to overclock my ram and get 1:1 or close. right now i'm at 1:6 but i should be able to do better. i can adjust my timings, but how do i overclock my ram in the bios? i think i'm only running at 400mhz
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Bravo
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post #2 of 15
Try this
Po Tato
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Po Tato
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post #3 of 15
try timing 4-4-4-13 voltase defualt, just to let you know the wall not in processor.
fsb default
multiple x 3

if succes raise the fsb by 5 mhz, if fail raise the ram volt. keep going until you find the highest fsb or can boot any more.

and then try 4-4-5-x voltase default
fsb default
multiple x 3
do the same again. Until you find best combination. good luck
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post #4 of 15
That stuff should be D9 ICs and with the right timings and voltage do DDR2 1100 with out a problem!
I think 5-5-5-xx and 2.2v
    
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post #5 of 15
Thread Starter 
does anybody with my mb know where to adjust this? i dont' see any settings to adjust the fsb of the ram
Bravo
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Bravo
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post #6 of 15
Quote:
Originally Posted by stanrc View Post
does anybody with my mb know where to adjust this? i dont' see any settings to adjust the fsb of the ram
Your RAM operates over the HTT link. It's worked out by whatever you've set your FSB to multiplied by the HTT multiplier. For example, 200FSB with the default x5 multiplier would equate to 1000Mhz. 250FSB x5 would be 1250Mhz, which may be too much for your RAM to handle. With that in mind you simply lower the HTT link to x4 (250 x 4 = 1000MHz).

You can find the appropriate setting under in the overclocking section of your motherboard's BIOS, its called
K8<-->NB HT Speed.

I hope you find that information useful.
post #7 of 15
Thread Starter 
that does help! thanks.

i usually have it set at 3 or sometimes 4 and my fsb is 305 if i try and use 5X and a lower fsb, it won't boot. i am at work now, but i will play around with it some more when i get home now that i know that.
Bravo
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Bravo
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post #8 of 15
Quote:
Originally Posted by stanrc View Post
that does help! thanks.

i usually have it set at 3 or sometimes 4 and my fsb is 305 if i try and use 5X and a lower fsb, it won't boot. i am at work now, but i will play around with it some more when i get home now that i know that.
I've just noticed that your motherboard has a Memory Frequency option in the overclocking section of the BIOS. You can lower or raise this to adjust your memory speed aswell.

In overclocking terms you can think of the Memory Frequency as how fast you memory will run along the HTT link. The K8<-->NB HT Speed is the actual bandwidth itself that the RAM uses to communicate with the CPU. In short, the HTT link has to be running at at least the speed of the RAM in order to be effective. Though bear in mind that presently, the HTT link can't run faster than 1200Mhz on many AM2 motherboards.
post #9 of 15
Thread Starter 
yeah, i can adjust the memory frequency between 400, 533, 677, and 800. i should be selecting 800 correct?
Bravo
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CPUMotherboardGraphicsRAM
X4 955 @ 3.6 Asus M479T 4870 1GB 8 GB DDR3 
Hard DriveOSPowerCase
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Bravo
(13 items)
 
  
CPUMotherboardGraphicsRAM
X4 955 @ 3.6 Asus M479T 4870 1GB 8 GB DDR3 
Hard DriveOSPowerCase
160 GB Win 7 Antec 750w Antec 300 
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Reply
post #10 of 15
Quote:
Originally Posted by stanrc View Post
yeah, i can adjust the memory frequency between 400, 533, 677, and 800. i should be selecting 800 correct?
Your PC8000, which is rated to run at 1000Mhz, will be increased simultaniously as you raise FSB anyway. So you'll have a good 200Mhz headroom with it set to 800, though be sure to confirm actual RAM speeds with CPU-Z if you're ever unsure.
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