Wait, so C2 is the better stepping?
No, my apologies, it was a typo, C3 is the better one
I Don't really know what is C2 or C3 or OC
But if you would help me to find it i would love it!
Stepping is the revision of the chip. In the same way with all hardware, be it anything with a computer in, such TV or even your washing machine, or something mechanical, like your car, gets improved over time, but the main design stays the same, your processor does too.
The first revision of a chip is generally A1. A minor change makes number increment by one, so say you have a brand new chip which is A1. The manufacturer finds a minor fault or weak point, so they make a slight alteration, it would then be A2.
However, if they do nearly a full overhaul, but keep the basic design the same, the letter will change. So, from A2, there is a massive change, it will then be B2 stepping.
C2 to C3 therefore means that C3 had an upgrade over C2 in the design making it create less heat, use less power and OC (overclock) better
Overclocking is making a component work over the speed it was sold at. Say you have a CPU that runs at 2.8GHz, it doesn't mean that 2.8GHz is the highest speed it can run at, that isn't true at all. You can overclock it to change the clock speed to something higher, so say you could set it to 3.0GHz instead. The 0.2GHz will make the system faster than it would have otherwise been.
With some processors, they are the exact same chip, but with different clock speeds. Take an AMD Phenom II 955 and a Phenom II 965 for example. They are identical chips, but the 955 is at 3.2GHz, whilst the 965 is at 3.4GHz. The way the clock speed works on them is
FSB x multiplier
never mind what those mean, just accept it. The difference between the 2 chips is the multiplier. Both have FSB of 200MHz, but the 965 has a multiplier of x17:
200 x 17 = 3.4GHz
Whilst the 955 has a multiplier of x16
200 x 16 = 3.2GHz
By changing the multiplier of the 955 to x17 instead, you have a Phenom II 965. A Phenom II 970 is the same chip as those 2, but at 3.5GHz. It has a 17.5 multiplier
200 x 17.5 = 2.5GHz
There are certain downsides to overclocking though. The speed you can set a CPU to isn't unlimited, some chips overclock better than others, and even if you have a the same CPU as someone else, theirs may overclock better than yours, or yours may do better than theirs, it caries even between the "same" chips.
Large overclocks will require "voltage bumps" meaning you will have to increase the power supplied to the processor to make the system stable. Small overclocks, like making a 955 the same speed as the 965 or 970, shouldn't require one, it should work at stock voltages (the voltage that it is set to by AMD by default). Unstable systems will cause your system to hang (become unresponsive), BSOD (Blue Screen of Death, the proper term being a Stop Error, which is a system diagnostic when there is a hardware issue, it is when your computer restarts and you get a blue screen with a code in the format 0x00000000, usually saying dumping memory to prevent damage to hardware) or even not boot at all. When they happens you will have to set your BIOS settings to their default ones.
If you put a larger overclock on though, such as running your chip at the high 3. GHz or more, and need a voltage bump, the increased power to the chip will mean your chip creates more heat. This is generally where you need better cooling solutions, such as aftermarket HSF's (Heatsinks and Fans), or even more advanced ones such as water cooling, DICE, or, when you get into competative overclocking, liquid helium or nitrogen in a pot (a tub on top of a heatsink on top of your CPU). You only need more than air if you are going for a very big overclock though, usually you can put a reasonable overclock on stock cooling (the HSF that was supplied with your CPU), and a reasonably high (mid to high 4. GHz) on a decent air cooler.
The other major downside to overclocking is warranty. Technically overclocking will void your warranty, however there is no way for them to tell you have been overclocking, with the exception of motherboard manufacturers who can check the BIOS if you don't reset it before sending it out, so you can claim you haven't overclocked, provided you haven't cooked the chip and have black burn marks on it.
can you help me with all that? finding the proper one
and heat sink?
Like I mentioned above, if you aren't overclocking, or doing a large overclock, the stock heatsink that comes with the chip will be fine. You will get a heatsink with all processors that don't say they are OEM, all that say they are retail come with one. The other difference between OEM and Retail is the warranty, retail generally only comes with 30-60 day manufacturer warranty, where as retail will come with a few years warranty, it differes between manufacturers
IDK if you have seen my other post, but im building a new computer for medium gaming you can go search it, but the problem is i can only get piece by piece and idk if i should save buy save buy or save until full money then buy
It would be better to save up and get it all in one. Buying the first part now and the last part 6 months later will mean you payed more for a system that isn't as good, because prices drop and new technologies come out at the price point that you payed over time, so say you payed $100 now for a CPU, 6 months later you could get a chip that today is worth $150 then for $100