I am a raw beginner and am hoping the experts on this group can help.
I have an older PC which has the 915G express chipset and a P4 2.8Ghz CPU (LGA775 socket). It's an old Dell and manual states that mobo has 800 Mhz clock and memory must be of type DDR2 SDRAM 240 Pin DIMM 800/533, according to the manual.
I am wondering if it's worth upgrading the memory and CPU but don't know what it is that determines which CPU I might use. I've read in various spots that it depends on the chipset but I can't find anywhere that says which CPUs can be run with each chipset.
I have also read that the chipset, and BIOS together determine which CPUs may be used.
Can anyone explain how to identify which CPUs I might be able to run on the above configuration and explain the relationship between CPU and chipset (and BIOS if that is important too)?