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-   -   N/2 ratio preventing overclock post? (http://www.hardwarecanucks.com/forum/overclocking-tweaking-benchmarking/27128-n-2-ratio-preventing-overclock-post.html)

sindraod December 28, 2009 08:28 AM

N/2 ratio preventing overclock post?
greets & happy holidays, Canucks =D

just curious if you guys think a BIOS N/2 ratio might be preventing my PC posting on an overclock attempt? i've tinkered with pretty much all of the settings, and have disabled the "bottleneck" BIOS settings (Speedstep, etc.)

i'd like to have a 10x multi w/ a 333 FSB to start with. not certain if the N/2 ratio, making it a 10.5 multi, might be preventing a post. all suggestings welcome =D

edit: not home atm, that's why i'm asking rather than doing. just wanted to see what you guys thought before i got home and attempted...

jcmaz December 28, 2009 09:20 AM

What is the specs of your rig?

sindraod December 28, 2009 09:29 AM


Originally Posted by jcmaz (Post 308840)
What is the specs of your rig?

Jetway BI-500
Arctic Cooling Alpine 7 HSF
GTX 260 Core 216 (can overclock this like a dream)
4GB Corsair XMS2 DDR2 800

temperatures are all ice cold in the system. that's why i think it might just be some sort of BIOS conflict. i haven't tweaked any voltage settings, and the DRAM is running at stock settings.

edit: oh, and running XP OS

Zero82z December 28, 2009 02:54 PM

It shouldn't make a difference. Modern motherboards should have no trouble running a CPU with a .5 multiplier.

bojangles December 28, 2009 03:21 PM

It's not like you'll be hurting the board trying it, so give it a shot and let us know.

sindraod December 28, 2009 04:05 PM

no difference at all. attempted 333fsb with a 9x multi. same deal. the cpu vtt is set at default, and has options to raise by percentages (+1.91% being the lowest increase). i don't know if i should tweak voltages now or something... NB voltage is at 1.262v, left the other core voltages at their defaults (1.500v)

bojangles December 28, 2009 04:49 PM

Wow 1.5V on the E5200? That's pretty high. Put that down to 1.4V to be safe. Try a lower FSB of 300 or 310 and see if that helps. Your chip may be a poor overclocker. Also make sure DDR2 voltage is set between 1.8-2.1V

sindraod December 28, 2009 04:52 PM

no no, not 1.5v cpu vcore lol, i meant other voltages in the BIOS that i dare not touch ;)

CPU vcore is at 1.27, NB voltage 1.262

i dropped multi down to 10x, took off N/2 ratio and set FSB to 250/33, and that booted stable. makes me think i just have to up cpu vcore a bit...

whatcha think might be a good voltage to try if i'm going for 10x 333/33?

bojangles December 28, 2009 06:15 PM

Some people would say a voltage that they can run, but it doesn't mean your chip can. Is there a reason why you want to run 333? Typically linked RAM doesn't help that much...

sindraod December 28, 2009 06:24 PM

3.4's what i was targeting, so 333x10 just seemed logical

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