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fsb and memory question....again..weird issue

post #1 of 7
Thread Starter 
So I had my system stable at 3.2 gHz (400 FSB, ram 1:1, and 8 divider)..so I thought I would push some more....ok...430 FSB (3.44 gHz) ram still 1:1). explain this...I did some memory benchmarks..memory running same timings, just now a little faster, scored lower in everst memory tests....explain?!
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raptor 150 x4 raid 0 Plextor slot load Windows XP Pro NEC MultiSync 23 Inch wide 
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post #2 of 7
Greetings Hiba,

Was your RAM getting errors? It might be counterintuitive, but perhaps playing with the timings (loosening them) might relieve some of the pressure.

It does seem odd. The methodology that I have used has not been as clean as yours, and RAM is still on the fringes of my full comprehension. So take this as it is: conjecture.

Please refresh my memory, is your multiplier topped out at 8?
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post #3 of 7
Thread Starter 
No, i can go to 9....I have found that life in general is full of paradoxes. I have no clue.
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post #4 of 7
http://www.overclock.net/intel-mothe...rap-issue.html

check the sight out here, it may give you some ideas on what speed you want to run, i think 400 is at the top of one of the straps on this board and to get the same performance you have to get to the higher end of the next strap, i dont really understand all of it but i have noticed it actuall hold s a some merit, give it a read thru
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xeon
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post #5 of 7
Hiba, howz about some screenshots of CPUz and pics of your BIOS?

MADMAXX22, that's a nice clock you have on that Allendale.
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post #6 of 7
thanks, finally got a cpu that likes the cold, hey hiba take a couple shots of the memory bandwith in sandra at the different speeds one at 400x8 and the other at 420x8 and youll se what im talking about
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xeon
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post #7 of 7
No...leave your FSB the same....the point of the article i think is that you can change the OC of the NB simply by lowering your multi on the cpu...that is wierd! If you leave the FSB the same, but lower your multi one notch, you will notice the chipset speed increases by almost 100mhz.

*ie- @ 400fsb and 8x multi on my cpu, the NB is 1:1 doing 400mhz also. Now lowering the multi to 7x, increase the NB speed to ~542mhz.

What that means is, you can overcome memory bottlenecks at certain FSB speeds, by adjusting your multi to increase or decrease the latency and speed of the NB. With every jump in the NB's strap, the latency values will change also and are noticable on the bandwidth tests.....but the latency doesnt change until the the strap changes....sooooooo setting your FSB and the multi on your cpu to attain a NB speed at the tip top of its strap, should produce outstanding results.
*Here are a couple of shots of my results @ 460mhz FSB 7x multi= 657mhz NB Attachment 35689

Attachment 35690

Attachment 35691


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