This is my system:
Dell XPS 400
System Clock 200 mhz
FSB 800 mhz
Pentium D 820 (2.8 ghz)
Dell 0yc523 mainboard (current bios revision)
If I understand it correctly, my actual memory frequency will be determined by the FSB/DRAM ratio multiplied by the system clock, x4 (DDR2 RAM). First of all, if I am misunderstanding that, then I'm really going to need some help with the rest of my question.
I bought some new RAM a while ago, 2 sticks of CORSAIR XMS2 1GB 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Desktop Memory Model CM2X1024-6400 - Retail . It has a rated speed of 800mhz. So, if I understand this part correctly, it should be able to run at a 3:4 ratio with a FSB up to ~600mhz. If I am not mistaken, my ram is actually not fully realizing the potential of my system. If I am misunderstanding this, please help me out.
Next part. My computer is an old dell, so I cannot change any memory or clock settings. The bios says my memory frequency is 533, or something like that. Cpuz says that my memory is pc-2 6400 max bandwidth 400mhz. However, shouldn't my max bandwidth be 800 mhz? I am sure that I am missing something that will explain what I see as discrepancies, and if someone could help me to see what I am missing I would be very appreciative.