My spec are below:
MSI K9A2 Platinum
Phenom II X2 550 Black Edition Callisto
Evga 9600 gso
Patriot viper ram 1066 ddr2 4gig
4 sas 73 gig raid 0 high point rocket raid controller

650 corsair power supply

I just would like direction in how set my cell menu up to over clock it stable. may be unlock the cores. Any help will be welcomed

Hi fresh,
so do you have the Phenom II 955 (as in the title of your thread) or the x2 550 castillo in your list?

Fresh
if its the x2 550 BE you have Oc'ing can be a rather simple affair with an unlocked multiplier which is the preferred way of doing it anyway. and the latest round of amd phenom II's x2 and x3's BE editions are not real fond of having their FSB moved very much.
you wont be able to unlock the other cores as your MSI K9A2 is equipped with the 600SB, the 750 SB is needed to access the 'Advanced Clock Control' feature needed to attempt the revival of the muted cores. here is an article from Toms Hardware about unlocking cores in the Phenom II:
http://www.tomshardware.com/reviews/unlock-phenom-ii,2273.html
if you do not wish to OC via your bios, AMD has its own (in my opinion) rather excellent OC'ing software called AMD Overdrive, it can be had here:
http://game.amd.com/us-en/drivers_overdrive.aspx

Here is a review of the x2 550 that has some OC tips for your CPU

http://www.overclockersclub.com/reviews/phenom2x2_athlon2x2/3.htm

one last thing, if you have not overclocked before, do yourself a favor and do a bit of reading up on it and the potential risks to your hardware. this article is a bit dated, but the same principles apply.
http://www.hardwaresecrets.com/article/102
Good luck, let me know if i can help

thanks i apologize i wrote the wrong information about the cpu
anyhow i managed and overclock, but i had 4000 mhz before i hit the big blue wall.

current over clock
http://valid.canardpc.com/show_oc.php?id=606362

Specs:
MSI K9A2 Platinum v1
AMD Phenom II X2 550 Black Edition Callisto
4 10k Fujitsu SAS 73gig hard drives raid 0
Highpoint rocket raid 2604x4 SAS controller
4gigs of 2x2 Patriot Viper 1066
Evga-GeForce 9600GSO 384MB
Corsair tx 650watt power supply
ZALMAN CNPS9900LED cooler
Vista 64 Ultimate

my clock setting are as so
AMD's tbl bug fix {disabled}
dot 3 setting {disabled all}
amd cool n quite {disabled}
cpu fsb freq {211}
ht ratio {auto}
cpu ratio{x18}
cpu feq {3798}
advance dram configuration {auto}
fsb/memory ratio {1:2.66}
ddr memory freq {1124}
dimm/pci freq {disable}
cpu voltage {1.503}
memory voltage {2.10}
nb voltage {1.30}
hypertransport voltage {1.35}
Spread spectrum {disabled}

Thats been the most common result reported with the x2 550, it will get to3.8- 3.9 Ghz, but just wont get over the 4.0 mark. if you got 4Ghz stable out of yours, your doing very well .

was not able to get it stable. it ran but as soon as i went to run any test. blue walled.
my current temperature is 29 deg c. any ideas?

you said its running stable at 3798? that's as good as any of the sites that reviewed and benchmarked it have been able to do...i think that's probably the limit. and 29c is a great temp at idle for that OC.

you're not going to get higher than 3.8 on air, well you could, but you'd kill your cpu from the heat, You have to move on to better means of convection if you're going to go for 4ghz.

what do you suggest?

Hi Fresh,
here is a review of your chip on legit reviews, I don't know much about this site, but this guy claims that he got his x2 550 stable at 4085Mhz,with a 19x multiplier on air......im kind of suspicious of that and his CPUZ screen shots don't show the Vcore he was using doing it. he may have just gotten one of the 'good ones' but the word on this chip is that it takes 1.7v to get to 4Ghz ( way over the recommended Vcore limit) Im with Super on this one. this chip has had the characteristic of hitting the wall at 3.8, and then getting hot, and taking a disproportionate amount of voltage to get the last 200Mhz. anyway, here is the link to the review, it may give you some insight.

thank i will check out the sight. I think i can do i had it close to 4000 but not stable. what cause it not to be stable? from your point of view.

forgot the link

so i did , here it is...
http://www.legitreviews.com/article/981/1/
that's a loaded question fresh, remember a computer is a weakest link scenario, it will only run as fast as the slowest component. that's why Overclocking can be such a lengthy and painstaking process. it can be any of the following:

Northbridge Frequency
memory speed/voltage
southbridge speed
temperature
vcore
bus speed etc etc. or that may be all the thing has in it. like i said ,that processor has a characteristic of hitting the wall at 3.8Ghz. it may help to read this article on the basics of OC'ing. its really an incremental process when your pushing a cpu(or any component) to the limit as you are attempting.
http://www.hardwaresecrets.com/article/102)

i was thinking, may be its vista?
i want to try xp64 see if i can do it?

i don't think its that fresh, I think you should first go get a superior cooling solution, the Zalman cooler you have is rather mediocre. then you could try these settings and see if it gets you close to 3.9Ghz. if not, start inching up the Vcore .02v at a time....and watch your temps!

* CPU voltage of 1.425V
* CPU multiplier of x19
* RAM multiplier of x8
* Base clock of 202MHz
* CPU-NB voltage 0.1V higher
* CPU-NB multiplier of x12
* HTT multiplier of x12
I believe that max Vcore (for OC )is 1.55v (verify that) so you have some to work with.

What cooler do you recommend?

This one would do a great job for you, all the reviews on it are great, and its rather economical
http://www.newegg.com/Product/Product.aspx?Item=N82E16835233003

also the OCZ vendetta or Vendetta II is very good, i have one on this thing (AMD X3 720) i have it OC from 2.8Ghz to 3.8Ghz idles at 24c and load at 35c.

Just remember that heat is your cpu killer, not necesarily the vcore. That's why the records with 1.7volts vcore happen, but they use extreme measures of cooling, like liquid nitrogen, passed that is liquid helium. Electricity is a strong form of energy, and the energy has to go somewhere, no moving parts makes it a little more difficult. I have seen reviews with your cpu oc'd to 4ghz+, but the 1.6volts you need is above the norm and definately decreases the life of your cpu. You could set 1.6vcore and try 4ghz, I'm sure it will boot, but just remember you need a better way to remove the heat.

to add to what super just said, AMD and the AMD overclock 'guru's' have set the max OC voltage on the new processors at 1.55v. to confirm this you can download AMD overdrive 3.02 and the max vcore will be at the top of the vcore adjustment. http://game.amd.com/us-en/drivers_overdrive.aspx

ok i am waiting on my fan to come in so i will let you know how it works out.