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Voltage question: O/C-ing with slocket

FatMan42

Senior member
OK - this was discussed before, but I want to come back to this briefly...

By bro has a Celeron-900 (cD0 stepping, SL5MQ) on an Asus P3V4X board. I'm sure it will do 1.2GHz, (133fsb) but haven't got there yet. I was trying to boost the V-core with jumpers on the slocket (Abit III), but couldn't get it stable. I wasn't adjusting the voltage in BIOS, only on the slocket jumpers. Which would over-ride? i.e. I tried to apply about 2.0V on the slocket, but the BIOS would still have been on the default 1.80 (or 1.75, whatever). That might explain why the chip never got any hotter to the touch when boosting the V-core.

So, would both slocket and BIOS need simultaneously boosting so that one isn't throttling-back the other? How does this work when you've got two separate systems trying to set the voltage?
 
I would think that you need to have both the slocket and the board set to the same voltage because if the board doesn't supply it, the slocket won't be able to use it. Conversley, if the board is at 2.0 but the slocket is at 1.8 then the slocket will override the board. Set them both to the same. I read through the other thread you linked to and think you should keep one thing in mind; just because others have gotten theirs up to 1200, doesn't mean necessarily that yours will go that high. Sometimes it just won't work; period. Each chip is a little different from the other; even when from the same batch. I think the prudent thing to do is start at about 9x112 (with 1.8v) and slowly start to inch up the speed. At some point you will find the "sweet spot" for that voltage/stability. Then, crank the voltage up a bit (1.9 or 2.0) and see how far you can get beyond that. But I wouldn't press it above 2.0. You will eventually find the max for your cpu. It will take you a bit longer but doing this methodically will produce better results. My impression is that you will probably not be able to run 1200, but you may well get over the 1100 mark if you do it right. Good Luck!
 
Thanks, Buz. If you're right - then the board was only supplying 1.8v throughout that attempt. I almost had it stable before - so I guess that must have been at stock voltage. If that is true, then it reckon it's more likely that it would work at 1.2GHz with a small V-core boost. Or am I just being hopelessly optimistic?
 


<< Or am I just being hopelessly optimistic? >>

Nothing wrong with being optimistic. 😀 Just don't fight reality if it slaps you down a couple of times. Hey, if it works, great!! If you can get close to 1.2 then take what you can get and be happy!😎😀😉 BTW, applying a bit more voltage isn't always the answer. It might not have been stable because it just won't do it; no matter what. Anyway, I wish you great luck. Just remember to up the voltage in both places.
 
OK - I'll try that one later (hopefully - just gotta convince my bro to do this...!). I realise that it's not a guaranteed O/C, but we'll see... Cheers, anyhow 😀
 
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