WinSAT - low Memory Index

I have an Asus P5N32-E SLI board running a Q6600 quad CPU and 2GB of DDR-2
memory. Until recently I had 667MHz Ballistix running at 5-3-3-15 (2T) and
got a poor low memory WinSAT score of 5.1.

This seems low because on another PC with an MSI motherboard (Intel chipset)
I get a memory index=5.9 even running cheaper generic brand 667MHz memory.

So I bit the bullet and upgraded the memory on the Asus board. It is now
running 800MHz DDR-2 Ballistix memory at 4-4-4-12 (2T) and it STILL gives a
WinSAT memory index of only 5.1.

So what gives? Is the WinSAT WEI index fatally flawed? Or is there a
bandwidth problem with the NVidia 680SLI chipset used on this board? The PC
does seem snappier in Vista now with the 800MHz but surely the benchmark
should reflect this?

NigelS

It is a very bizzare system, when I first installed Vista my RAM had
score of 4.7, I ran another check today and suddenly it's now 5.
without chaning anything
Explain that if you can

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mb76