X2 550 Unlocking & Overclocking Consolidated

[leonardo_hr]

ASRock A780GXH/128M (AMD 780G + SB710), 1.10/1.20 Bios
Phenom II 550BE 0919EPMW @ B50, 3.1GHz default - 1.125V / 3.6GHz - 1.325V default / 3.9GHz - 1.475V (CPU-Z)
2x2GB Kingston HyperX-8500 CL5, 2.2V @ 1.066MHz, 5-5-5-15, 1.8V

List Submission: 0919EPMW - leonardo_hr - A780GXH/128M - 1.20 - Success - Link

[brigs]

0922 CPWM, my first X2-550BE can do 3.8Ghz 1.42v stable

[5ILVgearX]

i was wondering how come my X2 550 don't down clock like intel's speed step?

muti is always at 15.5x

everything is set to default at bios.

MA790X-UD4P(F5)

I was able to unlock to 4 cores , but is there a way to tell the stepping without removing the cpu?

http://valid.canardpc.com/show_oc.php?id=603524

when running prime95 the temp on speedfan is always at 41C


can the free version of everest tell me cpu temps?

[dave_99]

Tried my CACYC 0923 APMW on an ASROCK A780 SB710 with ACC and a ASROCK A790 SB750 with ACC and fails to start Windows or Linux on both MBs. At post it shows an X4 but thats as far as she gets. I've tried each of the MBs available bioses and I think every combination of settings. Just got a 4 core dud. I do have it stable at 3.93ghz at 1.450v with 8GB ram and still am impressed with the speed on the 2 cores. A 650W power supply also does not help.

[luismenendez]

0921apmw & biostar TA790GX 128M January bios success!

I run only 30 minutes OCCT at default speed of 3100 Mhz without any problems but still having to test the 4 cores longer and overclock it.

http://valid.canardpc.com/show_oc.php?id=603327

Please note C&Q is enabled.

Edit: 2 days on and after gaming for a few hours without any problems the unlock seems stable

[asap]

0922 CPWM, my first X2-550BE can do 3.8Ghz 1.42v stable

Nice run brigs , seems lots of 0922 coming from indo

asap

[under18]

hi
i got my x2 550 unlock x4 batch 0922CPMW.




0922CPMW - under18 - Biostar TA790gx 128mb - 13/1/09 - Success - Link

[C-BuZz]

Great results guy's (well some of them lol), OP updated

Gotta love that warm fuzzy feeling of getting 2 free cores!

C-BuZz

[zelos]

HI,

I've managed to successully unlock my 550.

Gigabyte GA-MA790XT-UD4P (F4 Bios)
550 BE - AC098BPMW

i think you spoke about AC0918BPMW (missed one number)

Buzz , correct it

[5ILVgearX]

ok took it apart and found out the patch number

0922APMW - 5ilvgearx - Gigabyte 790X-UD4P - F5 Success Link

[lemonlime]

ok took it apart and found out the patch number

0922APMW - 5ilvgearx - Gigabyte 790X-UD4P - F5 Success Link

Got the same stepping, Silver

Hopefully I'll have some luck getting it stable once MSI releases a new BIOS for the GD70.

[charged3800z24]

Nice results on the unlocking front. I bet this has sparked a good bit of 550 sales.

[5ILVgearX]

Got the same stepping, Silver

Hopefully I'll have some luck getting it stable once MSI releases a new BIOS for the GD70.

good luck with your cpu bro

i got mine at ncix's richmond warehouse just if someone is wondering

i would be really grateful if someone can make a x550 unlocked max overclock thread

i could use a lot of pointers on my first amd system

[KayDat]

I've found that this is a fantastic guide on overclocking Phenom IIs.

[gOtVoltage]

I've found that this is a fantastic guide on overclocking Phenom IIs.

That Guide is priceless....Its based on DDR2

Ive even clocked my 550 to 4160mhz x4core using simalar steps.

Thats one of the best guides ive seen in while..

Now we just need one for DDr3 dividers lol.

[Jessfm]

has anyone at all had any joy unlocking with an ASUS M4A78-E ?

looks to be a trend forming over the net that this board just does not work

[Jamesrt2004]

I took delivery of a Gigabyte GA-MA790X-UD4P Motherboard on Friday so I've been having a play with it and my Phenom II X2 550 after flashing it to the latest Bios thanks to it running an old F2 version!

I purchased the CPU about a month ago and its a 0919EPMW Stepping and had 3.8Ghz in my old Asus M3A32-MVP DELUXE/WIFI-AP Motherboard as a dully.

On the Gigabyte however Its now a SUCCESSFULLY UNLOCKED QUAD

*snip*

I've been playing ever since and managed to get 3.6GHz nice and stable:

*snip*

To say I'm happy would be an understatement I'm having some issues with getting it to 3.7GHz as a Quad with Blue Screens & Reboots but still playing with bios settings! I'm more than happy with 3.6GHz but playing around is fun . The load temps are about 55deg running as a Quad 3.6GHz also, they do go up fairly rapidly when I use more volts though.

So please add me to the list:

0919EPMW - gamesaregood - GA-MA790X-UD4P - F5 - SUCCESS -

try getting it to cool down some more iirc 53C+ and they start to get a tad buggy (these chips love to be pretty cool)

[Snakebite1969]

What would you reckon about 0924 BPMW and 0924 EPMW steppings, these are the only ones I have currently found in New Zealand.

One shop had 2 BPMW's while the other shop had 20 odd 550's (only got the guy to check half a dozen for me and all were 0924 EPMW).

[VIP3R]

Going by the first post the EPMW has a 50% success rate of only 2 cpus tested and the BPMW has 0% of 2 aswell.

[Rezag1000]

Quick question: Is the stock 550 cooling adequate for a 550 with the aditional two cores unlocked?

thank you

[Balb0wa]

Quick question: Is the stock 550 cooling adequate for a 550 with the aditional two cores unlocked?

thank you

yes upto 3.4ghz ish wouldnt risk it with anymore, it really is a tiny heatsink

[shadow_419]

Quick question: Is the stock 550 cooling adequate for a 550 with the aditional two cores unlocked?

thank you

It all depends on how much if any voltage you have to add to get stable at 4 cores. If you can run stable at default of 1.35v then probably good but if you require 1.4v+ then I'd say no. The stock heatsink is nothing more than a finned aluminum block and it's small.

[lamby_splendid]

Quick question: Is the stock 550 cooling adequate for a 550 with the aditional two cores unlocked?

thank you

with stock i've got 3.5ghz rock stable with 1.38v, but i cant measure the temp,maybe around 55c..

[davidw8818]

Well, as far as i can go is 3.7GHz. Anything over 3.7 = not stable. Am able to run Small FFTs on 3.8-4.0ghz with 1.5v stable but when i run blend it will crash for some reason. I am sure is not the ram because those are same settings i used to run blend on 3.7GHz

[BrokenWall]

Im about to order a X2 550 but im in a tossup between ordering from Newegg $99 plus free shipping. or going to the local frys and picking it up for $104 and being able to possibly pick the week/batch i want.