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HT Link @ 3000mhz stabilized my overclock @ 4.2Ghz

post #1 of 14
Thread Starter 
Specs

1055T @4.2Ghz(1.5v)
CPU-NB @3Ghz(1.35v)
HT Link @ 3Ghz(1.22v)
Memory @ 1600mhz(1.65v)

Now I could do 4Ghz no problem and pass IBT and Prime95. When I hit 4.2Ghz the system would boot and run but if I tried IBT the system shut down or rebooted and Prime95 failed on a core within a couple minutes. So I figured I would increase my HT to 3Ghz and see what happens. So far Prime 5 hasn't crashed. Going to leave it all night and see what happens. Running Memtest saw no difference in numbers when HT was at 2Ghz or 3Ghz
post #2 of 14
generally for thubans as you increase the cpu-nb, overclocking the htlink is required. People like me with denebs, we should keep it at 2000mhz.
Edited by 2JZ - 5/28/11 at 11:17pm
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post #3 of 14
You should keep it close to 2000mhz indeed. IIRC increasing it actually lowers performance in most cases. You probably just need more CPU-NB voltage. Max safe voltage is the same as CPU vcore, which I consider 1.55v so you have a good bit of room to bump it from the 1.35v you're running at.
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post #4 of 14
Quote:
Originally Posted by Dopamin3;13673402 
You should keep it close to 2000mhz indeed. IIRC increasing it actually lowers performance in most cases. You probably just need more CPU-NB voltage. Max safe voltage is the same as CPU vcore, which I consider 1.55v so you have a good bit of room to bump it from the 1.35v you're running at.

^

Also usually the cpuNB hits a voltage wall around 1.4v where adding more voltage doesn't bring back any additional clocks. So long as your cooling is adequate I'd try for 3.2/3.3GHz stable on the NB. Also dropping your HT link back to 2000Mhz or so is ideal, someone did some benchmarks at 3GHz HT Link and it provided almost no performance gain in anything, and was a performance loss in many things.
    
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post #5 of 14
I don't know how many times I have said this.


KEEP HT AS CLOSE TO 2000 MHz AS YOU CAN!!!!mad.gif
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post #6 of 14
Quote:
Originally Posted by langer1972;13677823 
I don't know how many times I have said this.


KEEP HT AS CLOSE TO 2000 MHz AS YOU CAN!!!!mad.gif


Exactly!!!!

The only thing that Raising the HT Link will do is increase the available Bandwidth for 3D Graphics and in 98% of cases, one s PC is not capable of taking advantage of this bandwidth...
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post #7 of 14
Quote:
Originally Posted by 2JZ;13673383 
generally for thubans as you increase the cpu-nb, overclocking the htlink is required. People like me with denebs, we should keep it at 2000mhz.

Is this true? It seems to match the situation in the first post of thread. It might provide no performance gain but if it actually helps with stability I'd do it for sure!
post #8 of 14
Quote:
Originally Posted by xd_1771;13681168 
Is this true? It seems to match the situation in the first post of thread. It might provide no performance gain but if it actually helps with stability I'd do it for sure!


I don't see why it would be any differnt with the Thubans compared to the Denebs...
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post #9 of 14
I never had any issues with keeping HT link around 2000 to 2150 max when overclocking my Denebs or Thuban, my 965 did 4.3GHz (2.9GHz NB) prime stable and my 1090T (3.2GHz NB) was 24/7 folding stable at 4.4Ghz, neither needed HTLink for stability.

You'll also notice when people drop it under DICE/LN2 they lower the HTLink by quite a bit, far below stock for stability reasons.
    
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post #10 of 14
Quote:
Originally Posted by BallaTheFeared;13682032 
I never had any issues with keeping HT link around 2000 to 2150 max when overclocking my Denebs or Thuban, my 965 did 4.3GHz (2.9GHz NB) prime stable and my 1090T (3.2GHz NB) was 24/7 folding stable at 4.4Ghz, neither needed HTLink for stability.

You'll also notice when people drop it under DICE/LN2 they lower the HTLink by quite a bit, far below stock for stability reasons.

How did you get your NB to 3.2 GHz??????drool.gif
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