How to unlock quad core on dual core

roachyuk · 14 Feb 2011 at 16:27

hi just got the msi 870 c45 board and a x2 phenom be ...the board says it can be upped from 2 core to 4 core....is this possible with every chip....if so what steps do i need to do ...ive enabled teh core unlock option is there anything else like voltage or that i need to adjust as it still only reads as dual core thanks

paradisiac · 14 Feb 2011 at 16:29

roachyuk said:
hi just got the msi 870 c45 board and a x2 phenom be ...the board says it can be upped from 2 core to 4 core....is this possible with every chip....if so what steps do i need to do ...ive enabled teh core unlock option is there anything else like voltage or that i need to adjust as it still only reads as dual core thanks

yes and no. from my understanding they were all 4 cores, but then some failed stability testing so they turned those cores off and sold them as X3 or X2 chips. so yes, enabling should be possible, but its trial and error on which cores are stable and how many you can have.

opethdisciple · 14 Feb 2011 at 16:31

I have 0 experinece doing this, but it occured to me, you may have some luck if you unlock the cores, but then underclock the cpu slightly, that is if the unlocked cores prove to be unstable.....

roachyuk · 14 Feb 2011 at 16:42

ok worked out how to do this do i need to run some test to see if stable if so what tests do i need to run thanks

paradisiac · 14 Feb 2011 at 16:45

yeh testing is good.
anything that stresses the cpu like intelburn, prime95, occt........... even something like 3dmark will stress the cpu, although not as much as the others.

roachyuk · 14 Feb 2011 at 17:12

ill go get one of them give it a try thanks guys.....ohh yeah with it going from 2 to 4 cores do i need to alter voltage or anything?

paradisiac · 14 Feb 2011 at 17:25

roachyuk said:
ill go get one of them give it a try thanks guys.....ohh yeah with it going from 2 to 4 cores do i need to alter voltage or anything?

nope should all be the same. just a case of working out which cores are stable.

roachyuk · 14 Feb 2011 at 17:37

is it just trial and error enable 3rd or 4th core at a time?

Cookeh · 14 Feb 2011 at 17:38

paradisiac said:
nope should all be the same. just a case of working out which cores are stable.

Wrong.

More often than not unlocked cores need more volts put through them to make them stable.

vanandjuanunited · 14 Feb 2011 at 17:39

My 555BE didnt need any increase for all four cores to function fully

Must get around to overclocking it some time.

Try unlocking all 4 first then if not try core 2 then core 3

roachyuk · 14 Feb 2011 at 17:44

ahhhh is that what the + - options are in the advanced clock calibration?

paradisiac · 14 Feb 2011 at 18:58

Cookeh said:
Wrong.

More often than not unlocked cores need more volts put through them to make them stable.

fair enough, pretty much everything i read when i was looking into it pointed to the fact it was just a case of trying different combinations of cores until you found a stable setup.

vanandjuanunited · 14 Feb 2011 at 18:59

in some cases the chip will need more voltage as this is why it failed to be a quad

Pot luck otherwise if it unlocks