X2 550 Unlocking & Overclocking Consolidated

[cozmosland]

your guess is as good as ours. as i dont think we have seen that batch yet.
so try it out and let us know.
if you wondering which mobo's can unlock then goto the 1st page of this thread and look at the list.

[ReverendMaynard]

unfortunately the OP isn't updating this thread anymore....

[cozmosland]

yup. i did message him awhile back and request that he does it but there was no reply

[tkxmoe]

Hey guys, I just put together a rig today with a 770T UD3P (f6 bios) and a 550BE 0931GPMW, when i enable hybrid then set it to auto the PC reboots and shows a AMD X4 B50 and just sits there frozen.

I tried lowering the multi and upping the volts but it just sits there frozen.

Any suggestions? / Tips?

Google seems to suggests others have unlocked this batch no probs.

[ah_khoo]

Hey guys, I just put together a rig today with a 770T UD3P (f6 bios) and a 550BE 0931GPMW, when i enable hybrid then set it to auto the PC reboots and shows a AMD X4 B50 and just sits there frozen.

I tried lowering the multi and upping the volts but it just sits there frozen.

Any suggestions? / Tips?

Google seems to suggests others have unlocked this batch no probs.

freeze @ post/bios? if so i believe d unlocked core is broken. i had one 0931gpmw before, can unlock stably but mileage not as gud as 2 0922 chip i used to own.

[tkxmoe]

freeze @ post/bios? if so i believe d unlocked core is broken. i had one 0931gpmw before, can unlock stably but mileage not as gud as 2 0922 chip i used to own.

Anyway to disable the 3rd or 4th core straight away after setting hybrid and per core? Or must you enter the bios after changing the settings then disabling?

[Boyu]

Try to only enable 3 core, maybe one of the unlocked core is not stable.i dunno about gigabyte but on asus there is option to choose to use 3 or 4 core.

[tkxmoe]

Anyone know how to only enable one core with a gigabyte?

[ah_khoo]

Anyway to disable the 3rd or 4th core straight away after setting hybrid and per core? Or must you enter the bios after changing the settings then disabling?

not so sure gigabyte allow core control a.k.a u can choose whichever core u like to disab;e/enable. try to ply with diff acc% for each core, it's important for those crippled core(s). i use either -2, -4, +2 or +4 for those not so healthy core(s) usually.

btw, just gotten a 555BE, not yet fully stable. just a quick test...

[tkxmoe]

not so sure gigabyte allow core control a.k.a u can choose whichever core u like to disab;e/enable. try to ply with diff acc% for each core, it's important for those crippled core(s). i use either -2, -4, +2 or +4 for those not so healthy core(s) usually.

Tried this, bios auto recovered afterwards then when i tried again it didn't want to boot for 20minutes and bios auto recovered again eventually when it booted.

Think I might write this chip off, least till gigabyte allow you to disable cores.

[ah_khoo]

Tried this, bios auto recovered afterwards then when i tried again it didn't want to boot for 20minutes and bios auto recovered again eventually when it booted.

Think I might write this chip off, least till gigabyte allow you to disable cores.

if that's d case it could be one or both locked cores are in really bad shape. runnin 550BE as dual core is not bad actually. they're pretty cool @ load.

[Winterwind]

I have one Athlon II X3 425, stepping CACYC AC 0939BPMW
and 4th core unlocks fine, same goes for the 6MB L3 cache.
This cpu is really good, does linx with just 1.15v




I also have one Phenom II X2 550, stepping CACYC AC 0923EPMW
and it also unlocks

This one is also pretty good, linx stable with 1.4v and 3.7GHz

[FEROCIDAD]

x2 555 BE batch list???

[Lovvi]

Hi everyone!

I recently bought a X2 550BE (0925CPMW) that could be unlocked. Here's the problem: just before windows (win 7 ult. 64) logon screen the computer restarts or shows me a BSOD or just a blue screen error.

I've set the voltage to 1.45 (as the previous owner used) and NB voltage to 1.2 (def 1.0 @ 2000mhz). CPU was at def. clock.

Some people have told to "experiment" with the ACC (with the %) and change it for the specific core (for the core that failed). Well, I can't see which core crashed as I can't even log into windows.

My mobo is ASRock A780GHX/128M with bios 1.20 (also tried 1.50). Could it be a fault of my windows, as I should try to reinstall windows or just get a new mobo?

[dA_PhReAk]

Got 2x 1001bpmw one tri-core sucess, the other quad-core sucess.

[cdawall]

0921APBW - cdawall - Asus Crosshair III - BIOS 1403 - Success - Link

[Veschich]

Hi everyone. I just bought a Phenom X2 550BE and MB GB-MA785GT UD3H. I read a lot of stuffs about how to unlock the other 2 cores, but i'm kind of confused. So i'm sorry if you've already answer this question, but what i need to do to try this "uprgrade" my CPU, because i read about voltage and other but not sure excatly, so if you please help me.

And if won't work, how to try at least one of the core?

I'll really appreciate that.

[Barr3l Rid3r]

Hi everyone!

I recently bought a X2 550BE (0925CPMW) that could be unlocked. Here's the problem: just before windows (win 7 ult. 64) logon screen the computer restarts or shows me a BSOD or just a blue screen error.

I've set the voltage to 1.45 (as the previous owner used) and NB voltage to 1.2 (def 1.0 @ 2000mhz). CPU was at def. clock.

Some people have told to "experiment" with the ACC (with the %) and change it for the specific core (for the core that failed). Well, I can't see which core crashed as I can't even log into windows.

My mobo is ASRock A780GHX/128M with bios 1.20 (also tried 1.50). Could it be a fault of my windows, as I should try to reinstall windows or just get a new mobo?

No, thats a faulty core, can't u enter windows @ x2?

[Halos]

x2 545 0941 succses on MSI 790FX-GD70 174 BIOS, stabile Prime95 @ x4 B45!

One x3 435 0941 unlocked to B35, Prime95 stabile. Woooho

edit:

http://valid.canardpc.com/show_oc.php?id=1138622 @4.0GHZ @ B45

SuperPI @4.0GHz 17sec
http://www.pohrani.com/?44/12l/321blTag/superpix4.jpg

[Kronic]

asus m4785 td-v evo phenom II 550 be unlocked to 4 cores running at 4 ghz
http://valid.canardpc.com/show_oc.php?id=1142654

[Tenkura]

... but when I Falsh new bios (2505) for Asus M4A78-E, I can't manage cores anymore.
Is there anyway to downgrade bios back to previous version (1803)?

[Jowy Atreides]

Another one to the list.

0929GPMW, 3.4 unlocked 4 cores.
Asrock 880g, 1.4v

http://valid.canardpc.com/show_oc.php?id=1258564

[daytripper67mi]

... but when I Falsh new bios (2505) for Asus M4A78-E, I can't manage cores anymore.
Is there anyway to downgrade bios back to previous version (1803)?

yes,
on my m3a78-t you can if you use afudos(229es)
http://vip.asus.com/forum/view.aspx?...Language=en-us

this works(for m3a78-t) and applies to all asus boards

[PapaEmy]

hi guys, I need some help with unlocking pls, I managed to unlock 550 BE (0922 CPMW) into X4 B50 with Asus M4N78 PRO, but I'm not sure if it's stable or not, or it may have bug/crashed somewhere on M4N78 PRO. I've tested it also on different mobo (Biostar mobo) and it's fully unlocked and successfully stable on Prime95, but when I put it back on M4N78 PRO; all 4 of its cores were unlocked and stable in Everest stability test, but it went freeze immediately during Prime95 test, my OS is windows 7 32 bit, I've tried some differrent bios setup including raising its voltage, tried different bios versions but nothing changes, its also freezed when windows 7 aero being assessed, its always freeze at "assessing windows media encoding performance" and on prime95 only..

Does anyone using M4N78 PRO have the same problem with me? My current bios version is 1108, please anyone.. can you help me with this please? thanks in advance for your help

[techgeek]

... but when I Falsh new bios (2505) for Asus M4A78-E, I can't manage cores anymore.
Is there anyway to downgrade bios back to previous version (1803)?

I updated the BIOS on my son's computer here the other day with the same result. I had 1803 running on it and was able to successfully unlock one of the cores. Then I updated it to 2507 and then 2511 with the same result, no more unlocking. In fact when I try to manually activate the cores, and I only activate one core (core 0) it won't boot. This should work, as it's the only core which must be activated.

I have as sneaking suspicion that for some reason ASUS has intentionally sabotaged the core unlocking. Around six months ago, there was a rumor going around that AMD was pressuring motherboard makers to stop implementing ACC unlocking. Whether it's because they would rather you purchase the higher priced quads, or whether they think it hurts their reputation for reliability, I don't know.

Conspiracy theories aside, I am also going to have to downgrade the BIOS. Of course that's something else that ASUS doesn't make easy. EZFlash detects that it's an old BIOS rev and stops it. You would think to be user friendly, they would flash a warning asking whether you were sure you wanted to proceed. So it's off to download the engineering version of afudos for me. That is one thing in GigaByte's favor, at least with their Dual BIOS, you can have two separate revisions of BIOS. You don't like the new one, boot from the old, done.

If anyone has upgraded their BIOS on their M4A78-E beyond 1803 (preferably to the versions I mentioned above) and had success or continued success, I would sure like to hear it. I would also be interested to see if others have experienced the same as Tenkura and I.