What cpu

i have an amd 1.60GHz at the moment in a MSI-6702 V1 Mainboard, what is the best and fastest cpu i can fit into it?

we would need a bit more information as the MS-6702 model came in 4 different versions, the K8T Neo-FSR, K8T Neo-FSR2, K8T Neo2-FIR (6702-E), and K8T Neo2-F (6702-E), and the difference is very important because the first 2 boards use socket 754 AMD Athlon64 processors, and the other 2 use socket 939 AMD Athlon64 and Athlon64 X2 processors.

Though both sockets have been discontinued, it is possible to track down socket 939 chips with very little effort, but 754 chips are harder to come by and are not really worth too much trouble considering you can get faster chips for newer sockets, and the new board and chip may only set you back $60 total.

So if you could load up cpu-z it will tell you what model and socket your current processor is, as well as specifically what motherboard you are using. From there we can determine what processors will work with your motherboard.

its a k8t800 (vt8383) mainboard

unfortunately thats not quite enough information, as all of the motherboards above utilize the same VIA K8T800 chipset. What you need to do is identify specifically what motherboard you have, either by loading up software such as CPU-Z, Sandra (from SiSoftware), or by opening up your PC and seeing what the motherboard is labeled as.

If it is a socket 754 variant, you are pretty much out of luck as even if you could find some for sale...you dont stand to gain a whole lot of ground in upgrading on that socket. If it is socket 939, you will have the option of picking up some decent dual core processors, but even then these chips will not compare to what you can get for modern sockets. Given the fact that Socket AM2 dual cores can be found in online retailers (such as newegg.com) for under $40, and some really good dual cores can be found in the $50 range, its really not worth dropping a whole lot of money into an out dated platform.

But once you figure out what motherboard you have, you can refer to the MSI CPU compatibility charts which will tell you what processors are supported by your motherboard, and what board or bios revision is required for that support. And from there you can figure out what cpus you can buy, and determine if its really worth it to bother.