Hi, I have an ASRock PC, and it works great with my AMD Sempron 2300+, but when I upgraded it to an Athlon XP 2700+, My Keyboard and Mouse became unresponsive, and Windows would just crash upon login. No response what so ever. I could access the BIOS fine, and I noticed that my CPU temprature was rapidly increasing. Please help me.
3500 rpm is kinda a lot! what heatsink is it? maybe the athlon makes more heat. do not let the system over heat like that. it will damage the system. older amd cpus do not have over-temperature shutdown
Your Athlon has a faster FSB than the Sempron, meaning that it is maybe running the memory at incorrect speed. The BIOS don't have any cpu driver so that means that the CPU is running at full power for all it's parts. The OS can turn on or off or adjust the power for the CPU depending of the load. That'why you see temperature increasing in BIOS that don't happen when the OS is loaded.
The first thing I would do will be uppong the memory voltage to help with the faster FSB. Sure, a BIOS reset is mandatory when changing CPU forthes old system.
You can also look at the motherboard's capacitors.. If the top is rounded with brownish stuff, then the board might be dying..
You are probably overclocking your processor as the motherboard dose not recognize your processor and even though it may say it is running at 2700 it is running much faster. The solution is to upgrade your BIOS to the latest version or reduce the bus speed to the correct speed for the processor even though it may say on boot up that it is running at a much lower speed.