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-   -   Unstable core unlock- options (http://www.hardwarecanucks.com/forum/overclocking-tweaking-benchmarking/53281-unstable-core-unlock-options.html)

clone63 April 11, 2012 10:14 PM

Unstable core unlock- options
Got a sempron 140 that DOES unlock to second core, however any application immediately crashes (except cpu-z or HWmonitor). Orthos just 'goes away', firefox wont load, etc etc.
I wouldn't even ask this but it seems odd Windows will load and I can do some basics but everything else fails.. Is there anything I can do to get the second core working? Aside from putting the vcore to 1.42 (1.07 is stable for 1 core) and putting ACC to -12% -whatever that is supposed to do- I haven't tried anything. Figuring this to be a long shot :ph34r:

This is on an old 780G btw.
PS. It's fun to watch the temperature go downwards from 10C as the pc runs :haha:

supaflyx3 April 11, 2012 11:20 PM

The only thing you can really do is up the vcore, maybe try down clocking it a bit. Otherwise it was binned as a single core sempron for a reason.

b1lk1 April 12, 2012 04:55 AM

I got lucky with a Semperon 145 and it overclocks like a beast unlocked. Sounds like you got a true Sempron. Dump it and get another if you have your heart set on a duallie.

Dragonstongue April 12, 2012 08:08 AM

1.07 to 1.42 is a massive jump. If the second core is unlocked you need extra vcore for sure, but shouldn`t need near that much. I got a 955 clocked up to 4.2 at 1.431 vcore stock is 1.23-1.3v for 3.4Ghz. So yes bump the vcore, though if programs and such keep crashing after the bump in vcore then its simply not able to be used, hence it being locked in the first place. I recomend an Athlon 645 or 960T :)

b1lk1 April 12, 2012 08:23 AM

I got 3.3GHz out of my 145 on stock voltage, 3.5GHz only required a slight bump. If you need over 1.4V for even stock speeds on the 140 then it is just not meant to be. I believe I am running mine 1.375V for my current overclock.

clone63 April 12, 2012 08:40 AM

That's decent overclock. I've never tried even with my single core... yet!
Yeah, I didn't think this would go. It's just on a server/DL/backup unit so I don't really need that second core.
Thanks for the thoughts!

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