Unlocking a Phenom II X2 550 BE on the 890GPA-UD3h

[VenomIreland]

I've tried all BIOS's except for FF, which I am about to try later tonight.

My problem is, that some boots it will succesfully unlock (and be stable, tested with prime95 for 6 hours before deciding it was) but most boots, it is like the CPU Unlock option has been reset to "off" (It hasn't, it just acts like it has).

Any help? Customer Support is useless.

EDIT: Going to roll back to FE, FF doesn't have the .5 increments anymore.

[bytheway_r]

I have no idea why this happens. I've experienced this problem, too but in my case it's very occasional. Maybe the CPU isn't quite up to par or there's something wrong with the MB. Hard to tell.

[j2o]

hi i olso have a B50  part no.HDZ550WFGIBOX had no probs with this chip had a few in diffarent MOBS .....as for set up go in to the BIOS /ACC/ec firmware selection (hybrid) the screen will flash in red updateing thats ok leave /advanced clock calabration (all cores) /value (-2%)/ add cpu core control option  thats just stock setings   ..Qbios works for me just check what bios should be for that chip, before going to X4
found this what rev no. is ur board ?  GA-890GPA-UD3H (rev. 1.0) 1.0 F7 .  GA-890GPA-UD3H (rev. 2.0) 2.0 FB  .  GA-890GPA-UD3H (rev. 3.0) 3.0 F2 . for  the chip aboveGA-890GPA-UD3H (rev. 2.1) 2.1  FC .  for the a bove chip. it  looks like there are a 4versions of that MOB

[VenomIreland]

It is a revision 2.0

I am going to try unlocking it again today, but this time I'm going to raise CPU PLL up a little and see if it helps.

[j5]

Wonder if it's related to this 14 page thread:
http://forum.giga-byte.co.uk/index.php/topic,2409.105.html