X2 550 Unlocking & Overclocking Consolidated

[T1Cybernetic]

Just posting to add mine to the list.

So far so good with mine although one core seems to be bad the other works perfectly (so far) no problems Default voltages and cool and quiet works well with it too if that makes any difference.

Not tried any over clocking yet But will do soon, i was just happy for the free core to be honest!

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AMD Phenom II X2 550 3.10GHz BE
Asus M4A79T Deluxe //AMD 790FX/SB750 // 1801 Official Bios

I have 1#3 Cores in bios selected (1#2 will not load windows)

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[mr_yogabear]

Hello everyone, this is my first post here, but i've been reading this thread for the past 2 mos now, I got an Asus m4a79 deluxe and a phenom II 550be with batch number 0922cpmw, according to some here,it's a good batch, but im having a hard time making it stable, i dont know if the problem is with the board, im using bios 1901 now. But i can run it on tri core stable..

I think the one who have used this mobo and unlocked and run it stable is mr hondaguy, but he's using a gigabyte mobo now.

I hope somebody can help me out here thank you very much! AMD Rocks!

[Fottemberg]

4 core
AsRock AOD790GX128
Bios 1.50

Ops, sorry, I forgot the batch.
0922CPMW

[KeZzZu]

x2 550BE (cacay?) 0919 xxxx im not sure about codes, but with asus m4A78T-E i can prolly unlock all cores, but... not enought stable to boot up win7 x64 bit
It hangs up on loading screen, cores not showing up on bios either. MAybe im doing just something wrong or cores are dud's.

Hello new asus bios, version 2001

Let me introduce X2 550 BE which transformed to Athlon II x3 450 with L3
Doing some priming and popping cooler off to get correct batch code.

[serker]

0928BPMW 's a bad code, I tested 35 cpu and 8 cpu pass , 27 not unlock

I got the same batch, tested on ECS A790GXM-AD3, with an old mod bios that didnt supports 550, it unlocks 4 cores on bios setup, but dont boot windows. how is in your case? unlocks but unstable? or just dont unlock at all? I wonder if I should keep this CPU or not

[Chickenlittle]

Hi all tried two of these out with the following results:

0925CPMW - Chickenlittle - Asrock A780GMH/128M - P1.20 - Success

0925CPMW - Chickenlittle - Asrock A780GMH/128M - P1.20 - Fail.

I also have a Gigabyte GA-MA770-US3 Motherboard.

What's the procedure for attempting to unlock three cores instead of four.

Any help would be appreciated.

Thanks chicken <"}

[oxymorosis]

0924BPMW - Oxymorosis - Gigabyte MA770T-UD3P - F3 -Success - Link

http://valid.canardpc.com/show_oc.php?id=718887

[Digideath]

Hi there. I promised I'd post this here...

Batch:- 0924BPMW
Motherboard:- Gigabyte m720-us3 ( nvidia nvcc )
Bios:- F3 ( Don't use f4 or f5. F3 uses less vcore to stabalise)

Unlocked successfully. Overclocking to 3.7ghz as well. Prime stable for 24hrs.





I have a better clock than shown in this pic.
I lowered ht multi and nb multi to 9x. Set system bus to 223 and cpu multi to 16.5. Resulting clock, 4 cores @ 3685mhz. 4 gig of memory ( 4x1gig ) ddr2 800 @ 896mhz, 4-4-4-15 timings.
Stable for everyday use.

[05_03_1992]

0921fpmw x2 550be unlocked successfully on DFI LP JR 790gx-m3h5 (@ bios from july 2009)
x4 b50 @ 3,1ghz @ undervolted 1,2v (box cooler isnt too high-performance - scythe shogun is incoming)

regards!
lol - i changed the date in system's calendar probably - 31dec -> 19sept.

[Digideath]

Wow, you have it that stable at 1.2v. It took 1.375v on my board to get stable.
Look after that one. It's a vgood one. Should oc like crazy as well.

box cooler isnt too high-performance

Yep. Stock cooler is total garbage. Reminds me of the cooler I used for a cheap Duron, about 5 years ago.

[Tommie_lj]

PhenomII X2 550BE (0926CPMW)
Asus M4N72-E (Nforce 750 SLI)
BIOS = 1105, MUST UPGRADE! stock bios caused instant lockup when starting PRIME!
currently in the processo of finding a good clock, but so far its running 3.3ghz@1.31V without a problem..

EDIT:





this isnt even maxed out.. it runs stable @ 3.8ghz, 1.46V, but dont like the big step in vcore needed for only 100mhz.. not like it makes a really big difference..

[Mic75]

Hi all tried two of these out with the following results:

0925CPMW - Chickenlittle - Asrock A780GMH/128M - P1.20 - Success

0925CPMW - Chickenlittle - Asrock A780GMH/128M - P1.20 - Fail.

I also have a Gigabyte GA-MA770-US3 Motherboard.

What's the procedure for attempting to unlock three cores instead of four.

Any help would be appreciated.

Thanks chicken <"}

My solution:

0925BPMW - Mic75 - GA-MA790XT-UD4P - F5 - Tri Core Succes - link

Didn't think I was gonna be able to run this CPU on anything more than 2 cores at first. Unlocking was no problem and it did post, but wouldn't boot into OS (and I tried a lot of settings). Think the 4th core really is defective. But it now runs perfectly stable on 3 cores in Windows 7, XP and OpenSUSE.
Bit of a hassle to get there; need to install on 2 cores and edit the boot configuration to limit to 3 cores (took some time to figure out how to on Win7) before I unlock the CPU.
Have been running the tri core with a nice OC just for fun, but gonna thoroughly test&bench some configurations first before decide on what speed I'm going to run it. Still waiting for the thermal sensors I ordered to arrive before the real OC can start

Hope this helps. If there is some other way to do it I would like to know .. so far this is the only solution I could think of. Good luck

[gOtVoltage]

My solution:


Hope this helps. If there is some other way to do it I would like to know .. so far this is the only solution I could think of. Good luck

Have any of you guys tried to raise the NBvolts to +200 before you unlock it with auto ACC and Hybrid mode..Sometimes the ones that dont unlock need more volts because the core or IMC may be weak...


Also if the Chip dosnt clock high with just two cores , its an indication that it may be hard to tweak when unlocking 4cores...

Giving it higher NB/cpu volts will usually help if it fails to boot into windows( X4core ) stock clocks. As for why , Sometime it could actually be a faulty chip. Most the time its Mobo/Bios and the User with lack of coffee or Rum lol.

Asrock mobos are very touchy compared to using a Giga or Biostar or Asus or MSI which all offer unlocking Bioses.

Take your time and tweak few things at once when trying to unlock it.

Most will also run on three cores once its unlocked .
set Core Downcore or disable to 3core.( Do not touch any other settings with ACC set to the same setting as if you were unlocking four cores.)

[Mhudon]

2x 0924BPMW - Mhudon - Gigabyte MA790X-UD4P - Sucess

Hi guys,

I'm new to this forum, I often come here to read some advise and get ideas when tuning my set-ups.

I ordered two sets of X2 550 cpus with gigabyte mobos hoping I could successfully unlock both of them. I am a lucky person, I received two 0924BPMW chip.

I've unlocked the cores and ran linpack stress test for two hours without any issues with both computers.

I'm very surprised with the performance level acheived and really like these gigabyte mobos. One of the rigs was for my wife, I'll transfer my GTX 285 in it, try to OC the thing around 3.8ghz and run some benchmarks tonight, she might end up with my rig in the end

[theoldtimer]

I tested this 550 a few hours today and so far I haven't found any defects.
It unlocked right away without a hitch. I bought it at Micro Center for $90 which IMO makes this deal hard to beat.
The NB @2800+ runs Cinebench 10 64-bit.

4410MHz validation link
http://valid.canardpc.com/show_oc.php?id=726155

[trans am]

biostar 790GX A3+/ x2 550be 0925 APMW = FAIL

[theoldtimer]

What cooling setup do you use with such a high Vcore (1.616) ?

adil, I use liquid cooling (cool water, rads. in ice water).

[NoM$_YesLinux]

http://valid.canardpc.com/show_oc.php?id=730126

0922CPMW - NoM$_YesLinux - DFI LP JR 790GX-M2RS - R7JD225A - Success
3.6Ghz 1.35v - NB @ 2700, rock solid!
Great processor, $87 for a quad-core!

[felix_w]

0922CPMW - NoM$_YesLinux - DFI LP JR 790GX-M2RS - R7JD225A - Success
3.6Ghz 1.35v - NB @ 2700, rock solid!
Great processor, $87 for a quad-core!

Have you tried with latest BIOS ver. R7JD820A to unlock it ?

I have the ATX version of this board and i am planning to get a X2 550, but i'm searchig for the correct stepping.

[05_03_1992]

the latest bios from dfi.com (from july 2009) is supported 100% correctly unlocking
i have question to "NoM$_YesLinux" - ive got the same motherboard as you, but ive got one 3850 and cpu-z tell me that, pcie is working x8 - have you any method to activate x16 mode on single gpu?

i think good stepping isnt guarantee 4 cores - i saw two 0922apmw and anyone didnt unlock 4cores correctly

edit. i uptaded bios to d7jd826 - that bios isnt supported correctly unlocking, acc options isnt working, but d7jd826 bios is better for higher htt, mobo is booting 290htt ;]

[SnakePriest]

3.9 ghz here

http://valid.canardpc.com/show_oc.php?id=731032

[NoM$_YesLinux]

Have you tried with latest BIOS ver. R7JD820A to unlock it ?

I have the ATX version of this board and i am planning to get a X2 550, but i'm searchig for the correct stepping.

I have tested R7JD422, R7JD213 and R7JD225A.
Just R7JD225A works for unlock.

[05_03_1992]

my pII runs well @ x4 also on D7JD727A bios, i didnt test 225A

[trans am]

biostar 790GX A3+/ x2 550be 0925 APMW = FAIL

UPDATE the database please. This is a confirmed fail.

[trans am]

just received a 0925 bpmw what are the odds? any luck with this one? I dont see it in our database/.