Problem with upgrading processor

Sounds like the processor you're trying to upgrade to isn't the same frequency. The processor, motherboard, and memory have a matched frequency. For example; a motherboard with a frequency of say PC4200 will only accept a processor and memory of a PC4200 frequency. If you try to use PC5300 memory it basically won't do anything, blank screen, or maybe a beep. The same if you tried to use a processor with PC5300 on the PC4200 board. The best way to find the frequency rating is to look on the memory. They class the memory by frequency, but rarely ever list the frequency for the board or processor. Research the new processor to find out the memory class and then see if it matches the memory in your machine. If it doesn't then the processor won't work. If it does, then new processor may not be compatible, and that means more research.

CPU upgrade questions and answers. Issue: CPU upgrade questions and answers
Answers:
Below is a listing of CPU questions and answers to those questions. These questions have been sorted by the number of times they have been asked or searched for.
Can I upgrade my computer processor?
Because of the variety of computer motherboards / specifications / OEM modifications, we do not specify to users if they are capable of upgrading to a higher processor. To obtain this information please contact the computer or motherboard manufacturer or refer to the computer documentation.
When contacting your computer manufacturer concerning a CPU upgrade, ask for the below information that will help you correctly install your CPU:

1. What is the maximum speed I can put into my computer?
2. Do I need to switch any jumpers or dip switches when adding the new CPU, if so, which ones?
3. Do I need any additional hardware when upgrading the CPU such as a heat sink / interysoser?

Can I use an AMD / Cyrix in an Intel board or Intel processor with AMD board?
Again, this is all dependent upon the computer and/or motherboard manufacturer. Please contact the computer or motherboard manufacturer or refer to the computer documentation.
Can I upgrade to a processor utilizing MMX?
Generally, if the computer supports or has the capability of modifying the voltage, a computer with Non-MMX can be upgraded to a processor with MMX. However, because of the variety of possibilities, it is recommended that you contact the computer or motherboard manufacturer to determine if this is possible or not.
Why do I not notice a difference in speed when upgrading my CPU?
Depending upon what CPU chip you have installed in the computer determines how much speed the computer will increase. For example, if you just upgrade a 486DX to a 486DX2 you will not notice much speed increase. Even in a 486DX4 you will really not notice much more of a change in speed. Also, if you are putting a Pentium chip in a 486 board you will also not get the speed of a Pentium computer because you do have a Pentium board.
Generally, when upgrading the CPU, there will not be a dramatic speed increase in all programs. However, you should notice a small increase in program load time and or performance of a program. Can I use a Slot A in a Slot 1 or a Slot 1 in a Slot A? The Slot 1 processors and specification is a registered trademark of Intel, and because of this, AMD could not design a compatible slot. Therefore, AMD created the Slot A that looks similar to Intel's Slot 1 but are not compatible. Therefore, a Slot 1 processor will not work in a Slot A motherboard and a Slot A will not work in a Slot 1. Good Luck , Hope this helps ya out/Please dont for get to Vote. `