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Old 01-02-2007, 09:19 PM   #17
JAFFA
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Re: Intel Core 2 Extreme X6800 B2 + P5B Deluxe

I'll second that Dinos, Christ if eva sold all his hardware off he could finance a revolution.

Any chance you'll be dropping this little beauty under the SS for a bit of PI action eva? or is that a redundant question?
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Old 01-02-2007, 10:40 PM   #18
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Re: Intel Core 2 Extreme X6800 B2 + P5B Deluxe

Seems it could be heat or more likely lack of vcore to get any higher since P5B DX max vcore is 1.7v which is 1.62v idle and 1.59v load. Best can do 1M stable is 4040-4050mhz at 1.62v idle. 4050mhz completed 1M but rebooted when loading Asus PC Probe2, so 4040mhz seems to be it for 9x multiplier at least.



Super Pi 1M


Managed a brief prime95 load test at 3807mhz at 1.52v load vcore before it rebooted.

CPU idle:


CPU load:


Room temp rose a tad from 26C to 28.4C.

So basically from the brief testing I've done it is same as both my E6600 B1 Step 5 ES cpus in terms of max oc. Probably my E6600 B1s slightly better with 4005mhz at 1.62v 32M stable on P5B Deluxe and 4023-4043mhz at 1.66v on Asus P5B DH Deluxe versus X6800 1M stable at 4040mhz at 1.62v. But X6800 B2 L627A872 runs alot cooler at same vcore.

Last edited by eva2000; 01-02-2007 at 11:06 PM.
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Old 01-02-2007, 10:46 PM   #19
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Re: Intel Core 2 Extreme X6800 B2 + P5B Deluxe

What NB and FSB Voltage did you use?
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Old 01-02-2007, 10:47 PM   #20
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Re: Intel Core 2 Extreme X6800 B2 + P5B Deluxe

for 4+ ghz vFSB = 1.3v and NB = 1.65v
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Old 01-02-2007, 10:50 PM   #21
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Re: Intel Core 2 Extreme X6800 B2 + P5B Deluxe

Seems a little low considering the quality of the CPU. Do you plan on trying other boards like the Striker or Bad Axe? Or maybe volt mod the P5B?
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Old 01-02-2007, 10:56 PM   #22
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Re: Intel Core 2 Extreme X6800 B2 + P5B Deluxe

Yeah will eventually try other boards as well as several remounts of waterblock to see if improves overclocks I wonder if it's an FSB limit as early X6800 did have a lower max FSB limit some below 400FSB. I remember SLI_dog's cpu was one of the few X6800 from early batches to make it benchable past 400FSB.
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Old 01-02-2007, 11:02 PM   #23
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Re: Intel Core 2 Extreme X6800 B2 + P5B Deluxe

So onto 10 and 11 next!
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Old 02-02-2007, 11:03 AM   #24
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Re: Intel Core 2 Extreme X6800 B2 + P5B Deluxe

By eva2000
Yeah will eventually try other boards as well as several remounts of waterblock to see if improves overclocks I wonder if it's an FSB limit as early X6800 did have a lower max FSB limit some below 400FSB. I remember SLI_dog's cpu was one of the few X6800 from early batches to make it benchable past 400FSB.
Hi Eva

I would recommend winding that multi up - you can always run your RAM async if need be

Get that setup on your Kayl SS and see if you can get up here
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