I currently have DDR 333mz (PC 2700 RAM) installed and my ASUS AN78X2.0 Deluxe motherboard supports the new DDR 400 (pc 3200)chips. Someone told me that as my processor (Athlon XP 2800+ B) only has a FSB of 333mhz that installing the 400mhz (pc 3200) will not improve performance. I thought it was just he motherboard support that affected what RAM you can use. Can someone say whether it is worth me upgrading
There's not much point in upgrading. Ram will always work at the lowest of the two speeds. For example my laptop processor has an FSB of 266 while the motherboard has an FSB of 400. If you intend to upgrade your processor in the near future it'll be a good idea to buy the pc 3200, so you won't need to upgrade that too!
It may seem confusing, but faster memory will NOT necessarily make your system faster. Your computer will only run as fast as the "slowest link" in your system, so you can't speed up your computer by adding faster memory. The way to make your system faster is to add more megabytes (MB) of memory.
You dont intend to take out what is allready installed are you?