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Overclocking a 170 Opteron.. - Page 2

post #11 of 18
Your a good friend
    
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post #12 of 18
Thread Starter 
Ha, giving my 170 opteron is useless as it doesn't work at all on stock settings. Anyhow, RMA'ing it and probs get another or think about an X2 4200, or just save me monies for a c2d... probs my best bet.

..btw got my Venice 3500 back in and works perfect at err 2.7Ghz I think, so I guess i got unlucky with that opteron :/
    
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post #13 of 18
Quote:
Originally Posted by txtmstrjoe View Post
I have (or, had ) an Opteron that simply wouldn't overclock more than 2.4 - 2.5GHz stable. Even with crazy voltage, it simply wouldn't stay stable.

It was one of the dreaded CCBWE 0534SPMWs. Per other sources, this particular stepping was absolutely the stepping to avoid. Unless you were running a radical cooling system, there simply was no way this chip would go further than around 2.5 - 2.6GHz; it needed insane voltage levels.

I'm giving that chip away to one of my best friends. I'm building him an HTPC, and he absolutely doesn't want/need it to be overclocked.
Got one of those to 2.75 on an XP-90.. 1.50v
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post #14 of 18
Quote:
Originally Posted by repoman View Post
Got one of those to 2.75 on an XP-90.. 1.50v
Schweeet.

This actually is great to know, because it does affirm something I've long believed: CPU stepping doesn't by itself determine a CPU's OC potential. As yours proves, even with all the data collected, there will always be exceptions to "the rule." In other words, you don't truly know how a chip will overclock until you do it.

Thanks for sharing, repoman!
    
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post #15 of 18
Quote:
Originally Posted by txtmstrjoe View Post
Schweeet.

This actually is great to know, because it does affirm something I've long believed: CPU stepping doesn't by itself determine a CPU's OC potential. As yours proves, even with all the data collected, there will always be exceptions to "the rule." In other words, you don't truly know how a chip will overclock until you do it.

Thanks for sharing, repoman!
Yes, that's true, I still think that there is a 'range' for steppings though.. like the CCBWE 0534, it really has no chance of hitting close to 3G's with stock voltage like some of the later chips have.

Steppings are good for determining averages, but that's it. Another example, this time using newer LCB9E chips - average seems to be 2.8-2.85 with stock volts on air. I had an LCB9E 0704 165 that would only do about 2.64 with stock volts, now I have a 170 with the same week that does 3000

And no problem
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post #16 of 18
Should have gotten a 165.
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post #17 of 18
Quote:
Originally Posted by txtmstrjoe View Post
I have (or, had ) an Opteron that simply wouldn't overclock more than 2.4 - 2.5GHz stable. Even with crazy voltage, it simply wouldn't stay stable.

It was one of the dreaded CCBWE 0534SPMWs. Per other sources, this particular stepping was absolutely the stepping to avoid. Unless you were running a radical cooling system, there simply was no way this chip would go further than around 2.5 - 2.6GHz; it needed insane voltage levels.

I'm giving that chip away to one of my best friends. I'm building him an HTPC, and he absolutely doesn't want/need it to be overclocked.
I got one.

Looking for used chips with better steppings to replace it with. Mine runs stable at 2.6-2.7GHz with just under 1.5v.
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post #18 of 18
my 170 does 2.8ghz at 1.4v. Is the OP reducing the HT multi and ram divider? Just seems strange the issue is the chip. Even more strange the amount of power he thinks he needs. I ran it at 1.4v with the system in my sig. Notice i'm only using a 400W psu, soon to be swapped for a 200W, though then I wont be over-volting.
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