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Opteron 185 Overclocking Success - Page 2

post #11 of 17
No, I'm not saying anything about memory dividers

I'm simply saying that if all lower end CPUs could cope with 400mhz FSBs then it would be fair, but my 3000+ would need 333mhz FSB to get to 3ghz, while a 3200+ would only need 300mhz, so which one would an overclocker go with - the one with more chance of reaching 3ghz
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post #12 of 17
Thread Starter 
What do you guys think I should up the voltage to max!

I figure 10% so 1.485 from 1.35

Correct?
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post #13 of 17
Even though your memory is rated at DDR500, it can still be holding back your CPU. It actually means you can overclock it to DDR500 speeds, which involves going through various sets of timings, and seeing which gives you the highest stable mem clock.

So, shove it on a divider, and try pushing your FSB a bit more.

EDIT: Didn't realise you were on stock volts. Just increase it to 1.375V (1.4V if unavailable). Make sure to keep an eye on your core temps, and keep them at/below 55C.
post #14 of 17
Thread Starter 
I've tried 3Ghz up to 1.5volts and it wont pass orthos. Not even 1 hour, about 45mins.

Ram is rated to 250mhz so 230fsb aint a problem for it,

My chipset ive tested at 280 and it's perfectly fine with that.

My temps hit about 51 with my FM121 on 800rpm at stock volts on 2900Mhz.
(havn't tried to run orthos on 3Ghz with FM121 on full because I want it stable on silent)

Any suggestions.
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post #15 of 17
Take you known maxes of the MB, CPU and RAM and tinker with Gogars
It may shed some light on good combination varables.
Personally, I'm thinking 12x because it will get your RAM to 250MHz if you reach the 3G point and provide a 1:1 and a nice 4x on the Mem's HTT
    
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post #16 of 17
Thread Starter 
Any idea of how I can hit 3Ghz.
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post #17 of 17
Put your memory on a divider!

Memory marked as being DDR500 means you can definitely reach a stable overclock of 250MHz, but you WILL need to fiddle with the timings and voltage to make it stable. it doesnt mean you can assume it will run at 230MHz without you needing to loosen the timings. Follow this guide.

Have you even run Memtest to test the stability of your memory overclock?
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