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[Official] AMD MaxxMEM Results/Rankings - Page 100

post #991 of 1647
Working on fine tuning mine...

I've had it folding on 1800mhz, 8-9-8-23-34 timings, NB @ 2700. Did Maxxmem scoring and it was little less than 10 GB/sec.

Learned that folding is better at tight timings but no matter what I tried, I just couldn't get it lower than 8-9-8-21-28.

Then someone said that Phenoms don't care for memory speeds above 1600... don't know if it's true or not but I decided to give it a shot. Lowered to 1600 while trying to maintain same CPU speed and changed timings to 8-8-8-21-28. Still just under 10GB/sec.

Learned that by improving NB to ~3000mhz, improves scores. So I adjusted so that I still get almost same RAM speed and timings, but slight lower CPU speed and NB at 2900mhz. Maxxmem was above 10GB/sec. Great! Improvement!

But when I lowered just the CAS to 7... the score dropped to below 10 GB/sec. confused.gif Put it back at 8, it's back over 10 GB/sec. confused.gif

Why? And what are your suggestions to improve this?
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post #992 of 1647
probably slightly unstable at those settings.....try to raise freq again now with cpu/nb high also....you might get a boost by changing to ganged setting for ram also if your bios supports it, it will boost read times significantly...may give you a boost for maxmemm purposes thumb.gif

you may also try a bump in mb/nb v
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post #993 of 1647
Yeah, you were right. It was unstable and crashed on me.
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post #994 of 1647
Quote:
Originally Posted by mrinnocent View Post

probably slightly unstable at those settings.....try to raise freq again now with cpu/nb high also....you might get a boost by changing to ganged setting for ram also if your bios supports it, it will boost read times significantly...may give you a boost for maxmemm purposes thumb.gif
you may also try a bump in mb/nb v

Wait... why would this be the case? I was always under the impression that 2 64-bit channels are better than 1 128-bit one. confused.gif
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post #995 of 1647
Quote:
Originally Posted by Krusher33 View Post

Wait... why would this be the case? I was always under the impression that 2 64-bit channels are better than 1 128-bit one. confused.gif

it should only affect multi-threading cases vs single threads.
    
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post #996 of 1647
Oh ok.

By the way... I had my NB voltage set to 1.3 so it'll run at 2700... is it typical that it needs more to run at 3000? If so what's the limit on the voltage for NB's? We're talking about the motherboard in my sig rig.
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post #997 of 1647
yes...it supposed to be safe up to 1.5v same as cpu thats the cpu/nb

the mb/nb may just need a bump from whatever it is default
Edited by mrinnocent - 5/24/12 at 8:50am
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post #998 of 1647
Thread Starter 

Sorry for the wait, I promise i will update tomorrow. I have been feeling bad recently.

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post #999 of 1647
Quote:
Originally Posted by Disturbed117 View Post

Sorry for the wait, I promise i will update tomorrow. I have been feeling bad recently.

How come?
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post #1000 of 1647
Ok, with NB at 300 x10, I was getting ~10.6 GB/sec but it would just reboots within minutes during Blend Prime tests. I upped the NB voltage a notch at a time till I got to about 1.38v and it just wouldn't boot anymore.

So I'm thinking maybe too high of reference clock? But I've seen people get pretty high with this particular model of board back when it first came out.

Dropped it down to 290 x10 anyways, got 10.4 GB/sec and has been testing for a good 20 minutes now without errors on Blend test.

Other settings:
CPU core ~3.75 Ghz at 1.418 (known stable)
RAM just under 1600mhz
Timings 9-9-9-25-34 (SPD spec of 1370mhz speed)

Tell me your thoughts.

Stopped after an hour, tried 295 x10 and it BSOD'd.

Dropped back to 290 and tried upping the HT a bit to 2030. I saw the Maxxmem score 9.4 GB/s. Why did upping the HT link speed cause poorer performance? I did Prime blend test it for an hour without error too.

I'm going to go back to 1740mhz HT and fold over night see how it does.
Edited by Krusher33 - 5/24/12 at 10:12pm
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