H20 | AMD Phenom II C3 | Dragon's Revenge | Ultimate Thread

[Zeus]

You guys are tearing it up! Fantastic results!

chew* ain't that a bit much Vcore for a C3 cpu? Still awesome though. My condolences on your board, i know what it's like, i recently lost my golden Rampage Extreme.

This weekend i will see where my system will land.

[chew*]

You guys are tearing it up! Fantastic results!

chew* ain't that a bit much Vcore for a C3 cpu? Still awesome though. My condolences on your board, i know what it's like, i recently lost my golden Rampage Extreme.

This weekend i will see where my system will land.

Ehhh maybe, I tend to say that was a bit much vcore for "most" C3's but just not that particular chip.

Treat each chip like an individual, not a collective, never know what a chip will like/do until you try. A good gauging point however is a chips ref volts......

I would say less than .200 over stock is fair game for air and water.

That chips ref voltage was 1.40 so still in my personal safe range, I find most chips stop scaling after +.175 and seems C3 has a wide scale for ref voltage.

I have seen 1.325 up to 1.40 so the range of most peoples maxxed out clocks are going to be on average between 1.50v to 1.575 providing the chips have voltage tolerance.

[Grinder]

Ehhh maybe, I tend to say that was a bit much vcore for "most" C3's but just not that particular chip.

Treat each chip like an individual, not a collective, never know what a chip will like/do until you try. A good gauging point however is a chips ref volts......

I would say less than .200 over stock is fair game for air and water.

That chips ref voltage was 1.40 so still in my personal safe range, I find most chips stop scaling after +.175 and seems C3 has a wide scale for ref voltage.

I have seen 1.325 up to 1.40 so the range of most peoples maxxed out clocks are going to be on average between 1.50v to 1.575 providing the chips have voltage tolerance.

chew*, does voltage tolerance make a chip desireable for use with extreme cooling?

My 0942fpmw c3 isn't great for my water rig. At room temp with .5 hour blend: 3.7@1.4, 3.875@1.5, no go at 3.9@1.55. At 0C in window, 4.118@1.568 succeeded, and 4140@1.632 wouldn't complete, but didn't fry it (phew!). I'll probably sell it and try again, but want to make sure it's not of use to someone who uses much more cold!

[chew*]

chew*, does voltage tolerance make a chip desireable for use with extreme cooling?

My 0942fpmw c3 isn't great for my water rig. At room temp with .5 hour blend: 3.7@1.4, 3.875@1.5, no go at 3.9@1.55. At 0C in window, 4.118@1.568 succeeded, and 4140@1.632 wouldn't complete, but didn't fry it (phew!). I'll probably sell it and try again, but want to make sure it's not of use to someone who uses much more cold!

Grinder,

To be truthfull I have not been able to duplicate any proven method of a good cold chip........I have had great air chips do great cold and other great air chips be total crud cold. Same goes for bad air chips, some do well cold some are just crud all the way around.

Still searching for the magical combo and what makes a good chip a good chip but so far it has always been put a chip in and freeze it and test it thouroughly throughout the entire voltage range.

Seems the most important factor i have found is voltage tolerance. However that alone does not make a chip a good chip.....also have noted some air chip with wicked voltage tolerance all of a sudden hit a wall @ 1.7v cold. The best chips i have have had have have 2 common factors. They scale well and have voltage tolerance however this can only be determined once you hit it with max cold.

Still trying to break it all down to a science but so far my data is all over the place and there is not much for consistency.

The chip in the above Prime shot does 6.5 max 1 core. I have another chip here that does 6.7 on 1 core yet trails in prime on air by 100 mhz.

Best I can say is I know what properties to look for when cold but they can only be determined accurately when cold, it's kind of hard to explain but went through a few chips when at the recent michigan event.....I knew right away when I found the "right" chip so much that I didn't even bother testing a few other chips.

[Grinder]

So, it has some potential, but the proof is in the pudding. Errr, popsickle...

Thanks for the info!

[Zeus]

Talking 'bout potential...



No icewater or cold outside temps, just 20ºC ambient and regular watercooling.

So, shall i try for 4.2GHz with some more volts?

[Grinder]

No icewater or cold outside temps, just 20ºC ambient and regular watercooling.

So, shall i try for 4.2GHz with some more volts?

Nice! Hmmm, no envy smiley

It will be interesting to see what happens when you hurl some lightning bolts at it.