It's been a long time since I messed with a system as old as yours. Here's what I see.
In the CPU tab your FSB is 266.7 (this number has been rounded up from 266.65555)
Your Multiplier is 9
Multiplier x FSB = CPU Speed
9 x 266.7 = 2400.3 (9 x 266.65555 = 2399.8999)
In the Memory tab your FSB:DRAM = 1:2
This is saying that for every 1 MHz of FSB your DRAM Frequency will run at 2 MHz, or 1:2
So if your FSB = 266.7 then your DRAM Frequency =533.4
To look at these a little closer I'll point out that your CPU's bus line is what is known as a Quad pumped bus line. Or the CPU's bus speed equals 4 times the FSB.
4 x 266.7 = 1066.8
Your memory is DDR or Double Data Rate (DDR, DDR2, DDR3 are all Double Data Rate). The Data Rate is equal to the DRAM Frequency. So that means your Memory speed equals 2 times the DRAM Frequency or
Memory Speed = 2 x 533.4 = 1066.8
So this all means your CPU bus is running at 1066.8 and your Memory is running at 1066.8 or they are running at 1:1.
With your system this is considered optimal. There are situations in which a system with the ram running faster than the CPU bus line is going to be better, but the majority of the time you'll get better overall performance by keeping the CPU bus and Memory speed at 1:1.
I can help you get your memory running faster but I'm not sure if it would be in your best interest. Are you using the stock heatsink that came with the cpu or are you using an aftermarket heatsink? What are your CPU temperatures at an idle and under full load (running Prime95
for an hour).