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THE 'REAL' AMD ATHLON X2 7750 B.E. CLUB - Page 5

post #41 of 58
I'm not familiar with asus but it could be vdroop, so when you run prime95 it will drop volts down to 1.39. I have mine at 1.44v and it shows on cpuz 1.42v when prime95 is running.
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post #42 of 58
Just ordered my cpu will be here the 1st
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post #43 of 58
I've been struggling to get my setup to run stable at 3.2 and 3.3. Nothing!



Granted, whatever I know (knew) is ancient - from when I OC'd my Cyrix in the bad old days of the P1! .





Why do a OC machine crash!?





In the bad old days, it was because of exessive heat. This don't seem to be true any more.



Could it be because my MB can't overvold NB etc? I can only OV the CPU and the memory...



I've been able to get it up to 3296MHz@1.71V (1.63V in BIOS) and NB@2261MHz. Almost stable with AOD, but not with Prime95 (nor Orthos).

But I just can't get WinVista too finish the boot at 3.4GHz!



I've skipped the 'standard cooling' idea! I got bitten by the OC bug! Bad! It was hell of a fun time in the old Cyrix days...



With the Zalman's, I get idle temp 20ºC/67ºF and load is 37ºC/98ºF (this at the 'stable' - AOD Stable - ~3.3GHz)
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post #44 of 58

Quote:








Originally Posted by fransurbo


I've been able to get it up to 3296MHz@1.71V (1.63V in BIOS) and NB@2261MHz. Almost stable with AOD, but not with Prime95 (nor Orthos).



Seems like I don't know s**t about OC!



Lowering the CPU Voltage to 1.400V and do +0.12V overvoltage (=> 1.52V), then it's rock solit in AOD...



I always thought that the more voltage you hit it with (especially considering how voltage hungry this beast is , the better...
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post #45 of 58
I started out more or less guessing where to start (FSB:Multiplier)... After a while, I figured that there must be other combinations that could be used to achieve the same result.



So I wrote a perl script that outputs all possible combinations.



Perl script to output FSB:Multiplier combinations



The result, sorted by resulting CPU frequecy, FSB and then Multiplier (in that order) can be seen here: AMD Frequency List.



For those of you that don't read perl, I'm filtering out values that don't make any sense. I.e., Frequencies not between 3Ghz and 3.5Ghz. Above and below that don't make any sence (to me - I won't be able to get higher than 3.4 at the most I figure). Also, I've only been able to run my 1066 memories at 1104, so anything above 1200 is also filtered out.



This give me a nice list of 119 combinations that I can try. NOT counting all the voltage combinations with this!
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post #46 of 58




Add me!
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post #47 of 58
has anyone heard about unlocking cores on this processor, apparntly some korean guy did it. People already know it can be dome with the phenom x3's and the phenom II x2, x3's



http://forums.pcper.com/showthread.php?t=463879
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post #48 of 58
I have my kuma o.C at 3.6ghz
post #49 of 58
Nice work!!on the 3.6ghz
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post #50 of 58
This is my latest OC. I run it a little lower (3.29GHz) usually cuz comp is on all the time.







BTW I just got a new Mobo. a gigabyte GA-MA785G-US2H and love it so far. Was using an ASRock Mobo and had issues.
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