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FSB won't got over 250! a8n sli,ddr500,opty 175 - Page 2

post #11 of 16
What is your mem voltage?? Try running the memory @ 166 divider...with like a cl of 2.5 And as stated make sure you got the LDt set at 1.25 instead of 1.2..
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post #12 of 16
i reached 317 fsb putting a x5 multi and a 1/2 mem divider...
that was the maximum my a8n-sli could do!

i reached 317 fsb by putting a x5 multi and a 1/2 mem divider...
im happy with my a8n-sli !
    
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post #13 of 16
The ASUS 939 BIOS can be odd at tiems, the "AUTO" feature left as such can play games.
    
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post #14 of 16
got a stable FSB (7hrs orthos) of 324 * 6, vcore 1.4875, vdd 1.6, ht 1.2 mem 100 @ 2-2-2-6
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post #15 of 16
That is wierd because I have the EXACT same problem as you and I too have the same mobo (asus a8n-sli non deluxe)

I know my ddr400 ram can handle ddr500 speeds(stable). Things get wierd when I place a memory divider, lower my htt multiplier and attempt to increase my fsb. The thing just won't budge past 250mhz!! It can't be my ram because I know it can run perfectly stable at 250mhz.

I also tried updating the bios from 1012 to the premium version bios 1302 hoping that if I increased the chipset voltage I would be able to bump up the fsb. But it just still refuses to go past 250mhz... very frustrating indeed.
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post #16 of 16
Quote:
Originally Posted by Kenshin1987 View Post
That is wierd because I have the EXACT same problem as you and I too have the same mobo (asus a8n-sli non deluxe)

I know my ddr400 ram can handle ddr500 speeds(stable). Things get wierd when I place a memory divider, lower my htt multiplier and attempt to increase my fsb. The thing just won't budge past 250mhz!! It can't be my ram because I know it can run perfectly stable at 250mhz.

I also tried updating the bios from 1012 to the premium version bios 1302 hoping that if I increased the chipset voltage I would be able to bump up the fsb. But it just still refuses to go past 250mhz... very frustrating indeed.
there are ton of threads with this exact problem...I am going home to check some settings and see what I get
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Samsung 850 evo 1tb Samsung 960 pro 512gb (waiting on for OS drive) WD RED 4tb Corsair h100i v2 
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SAMSUNG Writemaster  WIN 7 x64 PRO / SLAX 13.37 x64 2 x Samsung LED 24" s24b350hl Logitech Access 
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PPC Silencer 750w Custom Logitech g9 
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