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post #11 of 40
what is the stable clock you can get?
post #12 of 40
I know you bought DDR2 1066 memory, but in your BIOS, is it set to DDR2 1066, DDR2 800, or Auto?

EDIT: Ok, I've played with some numbers, and when set to DDR2 1066, you should have a CPU/6 divider with a CPU multiplier ranging from (and including) 13.5-16x. 13x should use CPU/5, and 16.5x should use CPU/7. It appears CPU-Z is correct in some instances and incorrect in others. If you really want to use the DDR2 1066 setting, and want to push your RAM hard, a 13x multiplier will be most aggressive :thumb

However, I think you're making this more complicated than it has to be. I'd stick to the DDR2 800 setting and use a 12x multiplier. This will use the same CPU/6 divider but keep the math simple. At a 12x multiplier, you should be able to push the reference clock to at least 270MHz, giving you 3.24GHz on the CPU and 1080MHz effective (540MHz actually) on the memory. If you keep using the 1066 memory setting we can only make educated guesses at what the memory is running at based on the rules the CPU and memory are suppose to follow, but I can't promise the 1066 memory setting has consistent rules on every motherboard as it didn't exist when these rules were first created by AMD.
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post #13 of 40
Quote:
Originally Posted by llChaosll View Post
The HT Frequency should be close to 1000 at all times.
.
thats not true
most amd systems like in between 1200-1400 on the ht with ease
post #14 of 40
Quote:
Originally Posted by noobdown View Post
thats not true
most amd systems like in between 1200-1400 on the ht with ease
Noobdown, that is for an AM2 system. Apparently AM2 processors overclock well between those HT speeds. Socket 939 will typically become unstable around 1080HT.

Ghot, brisbane cores are fairly picky when it comes to memory settings and overclocking. Try these settings below:
TRC 24
TRFC 127.5 (or it might read 3 in the BIOS)
Async 8

It's also been said that a odd number multiplier may cause issues. If your running a 5000+ BE, I'd suggest running a higher processor multiplier. This will take off a substantial amount of stress off the chipset because you won't have to run a high HTT (reference clock).

Good luck
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post #15 of 40
Thread Starter 
Thx for the suggestion but I want to get the 13.5x238 stable.....if you have any ideas for that one (post #8)...12x267 wont boot and I almost cant get back into BIOS the 13.5x238 made 5 hours on Orthos Blend 9 then illegal sumout...anyways imma run orthos again
post #16 of 40
Quote:
Originally Posted by ghot View Post
Thx for the suggestion but I want to get the 13.5x238 stable.....if you have any ideas for that one (post #8)...12x267 wont boot and I almost cant get back into BIOS the 13.5x238 made 5 hours on Orthos Blend 9 then illegal sumout...anyways imma run orthos again
Ghot, in regards to post #8, that HT speed is ok and it shouldn't cause any problems. You could actually raise the HT multiplier and have it run higher but keep it below 1400mhz. Test both setups and see what yields a higher OC. What is the max HTT (reference clock) of your motherboard?

Good luck
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post #17 of 40
Thread Starter 
ok heres my best 32.ghz OC so far...illegal sumout @ 7hrs 22mins on Orthos beta priority 9 Blend

settings u cant see:
1.5vcore, PCIE buses locked at 100Mhz, NB<>SB HT Freq. auto, trc=26, tfrc=3, max async=8ns, Advanced Voltages (default), AI Clock Skew (auto/normal), SLI Ready memory (optimal/Max overclock), RAM timings at (default) w/ 2.1v [Corsair TWIN2X2048-8500C5D (1066Mhz)].......Idle temps: 29MB/31CPU Max Load: 30MB/56CPU.......

At start of this run Core1 was ahead of Core2 by about 3 seconds, for each test on Orthos...by 4.5 hours Core1 was 70 seconds ahead and by 6.5 hours Core1 was over 90 seconds ahead of Core2. Otherwise..seemed like 12x267 would go forever.




Ok I'm almost there guys...since this run Ive tried adding a lil NB and SB voltage...it brought the cores closer together time-wise when running orthos,
but still illegal sumout.

For my system this OC seems the best by far in that the mem freq and mem bus freq etc all match up and running great as you can see from the mem bench in the screenie.....

Question: whats that last little tweak to get me totally stable?
What am I still missing?

Im running Nvdia 9.35 chipset drivers and 169.21 vid card drivers
post #18 of 40
What are your NB and SB voltages?
If I remember right TheDuke said that sometimes a little more SB voltage will cure that illegal sumout error with Brisbanes.
Can someone else verify that?
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post #19 of 40
Quote:
Originally Posted by jameskelsey View Post
What are your NB and SB voltages?
If I remember right TheDuke said that sometimes a little more SB voltage will cure that illegal sumout error with Brisbanes.
Can someone else verify that?
Yep.... I can.... I followed theDuke's advice on the SB voltage, and it helped the stability on my OC....
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post #20 of 40
Thread Starter 
well heres the latest run with Norton AV Corp. uninstalled rather than just disabled:
I already tried bumping SB voltage but same illegal sumout error at 5.2 hours other day.


check this out though from THIS orthos run:
at 2hours Core 2 ahead of Core 1 by 25 secs
at 4hours Core 2 ahead of Core 1 by 66 secs
at 6hours Core 2 ahead of Core 1 by 90 secs
at 7hours Core 1 ahead of Core 2 by 39 secs
at 8hours Core 1 ahead of Core 2 by 17 secs
at 9hours Core 2 ahead of Core 1 by 4 secs

Now upping the NB and SB voltages helped with this on an earlier run..but still illegal sumout. I'm beginning to this is a software issue.....I already KNOW Norton AV causes errors even when disabled etc...
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