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AMD 3800 X2 Overclock Problems - Page 2

post #11 of 17
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Quote:
Originally Posted by txtmstrjoe View Post
Most who have experience with S939 dual-cores will tell you Manchesters require lots of VCore to get it over 2.5-2.6GHz. I've got an X2 3800+ Manchester running at 2.5GHz, 1.42V VCore, in my office machine. To be honest, I've not pushed it beyond its current OC (I don't need any more for its role), so I can't speak to how much more it has got nor how much VCore it can tolerate before temperatures go really crazy.

But, just as a comparison, consider that I've got an Opteron 170 (Denmark core, which is identical in all but name to a Toledo X2 dual-core) running in my sig rig. It's sitting comfortably at 2.8GHz, at a VCore of 1.37V (drops to 1.34V at max load). Clearly, the Denmark/Toledo requires much less VCore than a Manchester to run high overclocks. It's a good illustration of the prevalent trends when comparing a Manchester dual-core to a Toledo/Denmark dual-core.
I am very new to this, but i assume that Vcore, is just another way of saying Core voltage, as i cant find an option in my Mobo called Vcore?
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post #12 of 17
Quote:
Originally Posted by Pyroboy_UK View Post
I am very new to this, but i assume that Vcore, is just another way of saying Core voltage, as i cant find an option in my Mobo called Vcore?
Aye.

VCore = Core Voltage.

My apologies.
    
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post #13 of 17
Quote:
Originally Posted by Pyroboy_UK View Post
My core is a Manchester, i take it this would explain my low overclocks?

I have got it at 2.4 Ghz at the moment, im guessing i shouldnt really try any further.
That MB would like a an Opty 165 or 170 with a good stepping which would get you twice the cache and about 2800-3000MHz
    
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post #14 of 17
Quote:
Originally Posted by The Duke View Post
That MB would like a an Opty 165 or 170 with a good stepping which would get you twice the cache and about 2800-3000MHz
Depending on stepping of course .
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post #15 of 17
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Quote:
Originally Posted by txtmstrjoe View Post
Aye.

VCore = Core Voltage.

My apologies.
Ah , thanks for that. It was a silly question, but i thought i better make sure
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post #16 of 17
Quote:
Originally Posted by Pyroboy_UK View Post
Ah , thanks for that. It was a silly question, but i thought i better make sure
There are no silly questions . Better be safe than sorry. And if your X2 3800+ is at 2.4GHz...well that seems a pretty decent overclock for a Manny. Maybe try 2.5GHz out? Most of the Manchester cores can do that much . That'll also put your HT Link right to 1000MHz, and RAM at 208MHz (using the 166MHz divider of course).
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post #17 of 17
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Quote:
Originally Posted by pioneerisloud View Post
There are no silly questions . Better be safe than sorry. And if your X2 3800+ is at 2.4GHz...well that seems a pretty decent overclock for a Manny. Maybe try 2.5GHz out? Most of the Manchester cores can do that much . That'll also put your HT Link right to 1000MHz, and RAM at 208MHz (using the 166MHz divider of course).
Yea thats true, better safe than sorry. I will try to get 2.5 Ghz out of it, but wont be as pushy towards it. I think my problem is i am a bit like a bull at a gate with most things. But have learned a lot.

Im glad i signed up to this forum, the help here is excellent

Thanks guys
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