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Different memory speed readings between bios and software monitoring?

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Hi guys, just had to setup my old 775 rig because my Asus p8p67 pro decided to blow its vrm's the other day and take my i5 2500k with it :cry:
So back to a Asus P5Q3 deluxe and an e8600 for now :D (forgotten how much fun it is to oc properly!)

Anyhows, this is what i currently set in bios while im tinkering, notice memory at 1350mhz



When in windows cpuz and aida report this 750mhz (1500mhz)



What do i believe? All the other mem dividers on the 400 strap work fine apart from this one, which is why i prob have trouble booting sometimes at certain frequencies on this divider as bios is reporting it wrong?
 
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it sounds like that ratio is borked but its common on p45 that some ratios just didnt work right.

looks like its knocked it up a notch to the next multi to me btw.
 

cbrake

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I think 1350 is just the ratio isn't it? 1350/400=3.375 and 3.375*450= approx 1519
well that isn't exactly right either so never mind
 
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