Between Unlock CPU and OC..phenom 2 x3 720BE

hi guys,i'm currently new here

recently i bought Phenom 2 X3 720BE...i understand that this CPU has a secret core,which can be unlocked thru some tweaking...

i had a few question regarding above matter :

1. Does unlocking your 4th core (this case, 720BE) is the same as OC?IF it doesn't, wil unlocking 4th core decreasing my cpu lifetime as if we OC-ing?

2. If i fail (m/b doesn't support) thru the process, will it damage any particular h/w on my PC??especially my CPU...

3. What happens if i fail??does it make your CPU un-bootable,stuck or any common issues?

4. If number 3 happens, what can i do torestore my computer (CPU) to it's default state??

i'm sorry if i had a lot of questions,hehehehehe...please help me guys

PS : sorry for my bad english, i'm Indonesian,nice to know u all guys

i understand that the 4th core was a defective..i just thought that i might have other options instead of OC-ing it...

for a daily usage,if i OC the 720be,say about 3.6GHz,how long does my cpu will last until it can't be used??1-3 years??or perhaps shorter??

what cooler do u recommend to replace it's stock cooler for $20-$30??

one more thing,if i planed to OC to 3.6GHz,how much voltage should i raise to reach it's core stability??

my cpu vcore : min 1.14V and max 1.23V

the fourth core is statistically defective, it doesn't means it is.

I didn't said that... there is a very good possibility that the fourth core in your cpu isn't 100% defective (e.g. AMD QA did not tested that cpu exactly).
I don't know alot about oc but I would have try to unlock the fourth core and see.

1: OC'ing and unlocking is a risk. Depending how much you OC will depend how much it gets affected. A small mild OC of ~15% will do little or nothing to the lifespan.

2: If you fail, just remove the power plug and the motherboard battery or clear the CMOS jumper on your motherboard and you'll be fine. That's all really.

Prime 95 over stresses CPUs to beyond their normal loading.

It's good for testing stability, maybe add some more volts.

Keep in mind you have a 95W TDP motherboard and the Phenom II X4 810 is already 95W when not overclocked. Overclocking might raise it past it's power circuitry on the motherboard.

You can try to raise the core voltage in the BIOS, but not all motherboards have such a feature.

There is no certain voltage for every CPU, AMD K-6 CPUs ran with over 3v of power. For the 810 and your motherboard, I would not recommend overvolting past 1.37v.

Everything being said here is too model specific...... lets put it in general english non tech jargon....... Life of computer components...... is dependent on the main factor which is heat..... it's like baking a cake.... too much for too long is going to fry it..... final result..... not good..... lol
When you unlock a hidden core...... do you know what you're doing???? it's turning a two way road into a four LANE two way road or 6 lanes two ways.... or finally 8 lanes two ways each..... Confused......???
Well thats the state you Mobo is going to be in if it wasn't designed for it..... if any one of the lanes has a little less data throughput...... it's going to get way to confusing for all those little components and traffic managers stuck on the Mobo..... result....... like a accident of the freeway..... one hitting another hitting many.... ultimately.... CRASH......
Come on.... a Ferrari is going to touch 220 on the street..... it going to look for chaos..... too much voltage and too little voltage... (POWER) is going to decrease the life of the processor..... 1.14 to 1.23 is not fine tuning..... 1.14 to 1.16 is fine tuning.... be very careful with the voltages..... better to use an Asus board..... it's more user friendly when it comes to OC'ing anything.....
Unlocking a core in not OCing..... it's simple UNlocking a core.....
OCing is when you manipulate the frequencies of calculations in any processors.... be it GPU's or CPU's..... no hardware unlocking .....
Although unlocking hardware limitations..... increase the OCing capacity of the components.... but results are varying and depend on the combination of Mobo's Processors, Rams GPU's and finally and most importantly cooling and voltage....
PC's restarting after running for a period of time is a direct result of two thing.... either or.... Voltage drop..... secondly Processor Heating up
Check Heat levels (you's using HWMonitor) of the CPU and GPU just before the crash..... LOG it if you don't know when it is going to happen and then check
if that is clear and within the 70 degree mark..... no problem there
Check the SMPS (PSU), use a multi meter or a fancy new gadget out there if you have a spare use that SMPS (PSU) and see if the crashing repeats.... if not the PSU you were using may not be sufficient to take the load of the Voltages required....
Not only does a CPU have a friendly voltage working range but all the components you put in do have them mentioned on the boxes.... pls read them very carefully.....
Just remember some damage is irreversible ...... so if you're not sure or then buying a computer was like buy a house....... don't do it...... if buy a comp was like buying a coke....... buy 5 different configs and try each one out..... post the results here for me too.....
PS: whats the point of testing a already OC'ed processor........???? Beats me..... if it's working fine after the OC then you have no problem , you did something right....... you need to use a benchmarking program to tell you the difference before , midway , after the OC........ and try one in the config when if crashes...... you'll know the limits of your system Immediately...
And what PSU are you using.....?????

Sorry, typo, I mention Phenom X3.