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Intel Overclocking Redefined - Interesting P965 / 975X Secrets - Page 8

post #71 of 120
So, an apt analogy to the NB is it's a manual transmission and the strap is the stick shift?
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post #72 of 120
Thread Starter 
Quote:
Originally Posted by OCZedd View Post
So to conclude this easily you want to run your FSB at either 266, 333, 400, 533Mhz to avoid these boot straps? Anything like around 280Mhz, 350Mhz, 420Mhz, 550Mhz is bad and will have less performance than the optimum FSB's above?
Sort of. However, on the P5B Dlx, the strap change is at 266 and 400 only. There may also be a strap change around 550+ Mhz.

Quote:
Originally Posted by FrankenPC
So, an apt analogy to the NB is it's a manual transmission and the strap is the stick shift?
Exactly. Great analogy!


I think the value of the QuadGT and Bax Axe 2 is unrivaled because of its strap control features.
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post #73 of 120
Quote:
Originally Posted by Burn View Post
Incorrect- The Anandtech article on the QuadGT clearly shows manual NB strap control. Visit Anandtech.com to see the article, under the BIOS features.


I guess i should have explained myself further. I was talking about 1066 and 1333 straps. When we're talking about the current crop of core 2 duos 4300 and 4400 withstanding it would be pointless to run anything less than the 1066 strap. So with that said the abit board only offers the 1066 strap which is actually better for memory performance but limits most boards to 450ish fsbs. Which is the plus for this board since it can get over 500 while still on the 1066 strap. My mistake and i didnt mean to mislead anyone.
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post #74 of 120
Thread Starter 
I have to agree, I am confused as to why they do not support a 1333Mhz strap. However, it should be noted that the motherboard can reach considerable FSB on the 1066Mhz FSB. For me, it is not a worry!
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post #75 of 120
People were saying 500+ on that 1066 strap. However I'm sure that's a suicide garbage shot OC not something more real and usable.
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post #76 of 120
Thread Starter 
Quote:
Originally Posted by Ihatethedukes View Post
People were saying 500+ on that 1066 strap. However I'm sure that's a suicide garbage shot OC not something more real and usable.
Quote:
Originally Posted by Anandtech
We were able to reach a final benchmark stable setting of 7x515 FSB resulting in a clock speed of 3605MHz. The board was capable of running up to 7x525 FSB but would consistently fail our Dual Prime95 test, although it passed all our game and synthetic benchmarks. We settled on the 7x515 FSB setting and set our VCore to an acceptable 1.4850V with Vdroop being around .02V during load testing. We were able to operate our GEIL memory at 4-4-4-12 at 2.4V with these settings.

The BIOS allows you to manipulate the MCH strap and memory speeds resulting in a wide variety of performance options based on your components. The current BIOS allows you to stay in the 1067 strap up to the 525FSB ceiling with our E6300 and E6400 chips, and this allows for some incredible memory and system performance at the higher FSB settings. Our E6600 has hit 7x550FSB in initial testing at this time. Our board was extremely stable throughout testing although we noticed the requirement for slightly higher memory voltages at the upper FSB rates due to the tight sub-timings. During overclocking we generally found that at 7x400 and above with our E6300 and the memory set at a 1:1 ratio (800 DDR2) that 4-4-4 timings were up to 7% faster in our benchmarks than forcing the memory latencies to 3-3-3 as the sub-timings were set tighter resulting in improved throughput.
7 x 515 on E6400
7 x 550 on E6600

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post #77 of 120
Quote:
Originally Posted by Ihatethedukes View Post
People were saying 500+ on that 1066 strap. However I'm sure that's a suicide garbage shot OC not something more real and usable.
Perhaps, which is why I'm a fan of 12 hour Orthos (Large FFT's) with CPU-Z shots of CPU/Mem. I won't believe anything to be stable until I see those results.

I will more than likely use the 1066 strap, and see how far I can go. I really hope that it'll go above 500FSB (550 would be great!)
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post #78 of 120
I'm with you but I go for 8 hours blend. With the CPUz's you mentioned plus a whirl of 3dmark01.

However, hearing that they primed at 550 on the 1066 strap is EXCELLENT news. I'll likely buy that board in the future.
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post #79 of 120
This strap issue is confusing to me, but it's to be expected as I'm totally new to over clocking. After reading all of the posts above, I have a question for you all on this topic. I'm trying to over clock my E6600 to 3.2 and in doing so I lowered the multiplier to 8 to get a fsb number that allowed me to reach the 800 MHz cap for my memory. I therefore currently have 400 x 8 = 3.2 Gigz with memory at 800 MHz. Am I better off going back to the default multiplier of 9, fsb of 356 and memory at 712 MHz?


CPU - C2D E6600
Mobo - ASUS P5D Deluxe
RAM - Corsair XMS2 DDR2800 PC26400 (2x 1GB) 4-4-4-12 @ 2.1v
post #80 of 120
Thread Starter 
Quote:
Originally Posted by Aemoh View Post
This strap issue is confusing to me, but it's to be expected as I'm totally new to over clocking. After reading all of the posts above, I have a question for you all on this topic. I'm trying to over clock my E6600 to 3.2 and in doing so I lowered the multiplier to 8 to get a fsb number that allowed me to reach the 800 MHz cap for my memory. I therefore currently have 400 x 8 = 3.2 Gigz with memory at 800 MHz. Am I better off going back to the default multiplier of 9, fsb of 356 and memory at 712 MHz?


CPU - C2D E6600
Mobo - ASUS P5D Deluxe
RAM - Corsair XMS2 DDR2800 PC26400 (2x 1GB) 4-4-4-12 @ 2.1v
I am inclined to say yes. Try running a 32M Pi test at 400 x 8 and then at 356 x 9. You will probably find that the 356 x 9 is faster.

I am not sure what cooling you are using, but I suspect you can probably go up to around 400 x 9 or close to it. Your memory should also be able to do more than 800Mhz fairly easily.
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