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300FSB for a Phenom II X4???

post #1 of 10
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whats a good FSB to aim for with a Phenom II 965? I just ran a 3Dmark11 (300X12 = 3.6Ghz) with a 300 Fsb and my scores went up alittle bit.

Physics Score is 4393
http://3dmark.com/3dm11/787537;jsess...fj5VQFymNSL3a2

So a quick question, is a higher FSB always better? (sorta like a High NB clock? Any consequences to running a high FSB? I have yet to bother Stress Testing it as i don't know whether its safe or not.
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post #2 of 10
Quote:
Originally Posted by th3illusiveman View Post
So a quick question, is a higher FSB always better? (sorta like a High NB clock? Any consequences to running a high FSB? I have yet to bother Stress Testing it as i don't know whether its safe or not.
Sorry to pour cold water, but the HTT (FSB) doesn't make any difference whatsoever on any AMD processor since 2003 (and on Intel's since 2008). The HTT is the speed of the link between the On-CPU NB and the physical NB chip on the motherboard (the 890Fx NB for example). HTT is designed for servers where demands are much higher - on a single-processor desktop HTT speed could be halved and no difference would be noticed (I have checked this, lowered by a factor 4 with zero performance degradation, lowered by a factor 5 and there was some memory speed reduction).
There is no consequence, unless maybe stressing the CPU and motherboard for nothing.
High CPU-NB speed helps because the L3 cache & memory controller would be faster. CPU OCing improves the speed of the CPU cores, but HTT is plenty fast even at half of the current speed.
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post #3 of 10
Hmm 300 seems very overly high for a 965... I bet you are not stable. I use the normal multiplier which is x17@ 236.8 FSB which would be considered a fairly nice FSB OC.

What are your scores at stock clocks? With that CPU and that card you should be more in the 5000 range with performance settings.
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post #4 of 10
I've gone as high as 360 HTT (FSB), but there isn't a difference with a lower HTT and higher multiplier. Use the HTT to fine-tune your OCs, since you have the option of changing multipliers. Find out the limits of your CPU, NB, and RAM so you can find the right HTT and multiplier combo to reach your limits/target.
    
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post #5 of 10
Quote:
Originally Posted by th3illusiveman View Post
whats a good FSB to aim for with a Phenom II 965? I just ran a 3Dmark11 (300X12 = 3.6Ghz) with a 300 Fsb and my scores went up alittle bit.

Physics Score is 4393
http://3dmark.com/3dm11/787537;jsess...fj5VQFymNSL3a2

So a quick question, is a higher FSB always better? (sorta like a High NB clock? Any consequences to running a high FSB? I have yet to bother Stress Testing it as i don't know whether its safe or not.
As high as you can get it stable,It's really the best way to OC.Higher FSB gains better OC's.
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post #6 of 10
Your motherboard isn't s-h-eye-T. Good quality VRMs, 8-pin CPU connector, heatsinked mosfets, one of the few motherboards you can actually OC a 125w CPU.

Just try hard, play with your clocks and voltages, and you can get a high OC on your board
Edited by tryagainplss - 3/8/11 at 4:44am
    
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post #7 of 10
Quote:
Originally Posted by tryagainplss View Post
your motherboard isn't s-h-eye-t. Good quality vrms, 8-pin cpu connector, heatsinked mosfets, one of the few motherboards you can actually oc a 125w cpu.

Just try hard, play with your clocks and voltages, and you can get a high oc on your board
it even takes sli.
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post #8 of 10
Thread Starter 
Quote:
Originally Posted by tryagainplss View Post
Your motherboard isn't s-h-eye-T. Good quality VRMs, 8-pin CPU connector, heatsinked mosfets, one of the few motherboards you can actually OC a 125w CPU.

Just try hard, play with your clocks and voltages, and you can get a high OC on your board
The thing that kills it is the Vdroop which i still cannot control.

The board lacks a Loadline calibration setting and therefore suffers from terrible Voltage Drops. 1.4v in the bios become 1.36 at load. It has a feature called Invidia Core Calibration which i though would replace load line, But setting it to its highest Percentage (12%) Yielded No improvements (still a .04 voltage drop)
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post #9 of 10
I agree, his board is decent too.
But I am overclocked to 3.8 easy with 19x200. Theres really no point of 300 with a very low multi. Even with higher FBS, it does not make a large difference than a lower FSB however you are right, it increases your ram and nb frequency, yet you wont notice a difference unless your bunchmarking.
Besides you can only go so far on the ram and nb frequencies without crashing.
    
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post #10 of 10
nvidia core calibration on nvidia boards isnt for vdroop. its for core unlocking and optimizing the same as advanced core calibration(acc) on amd boards.
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