I`ve only got 2 sticks of ram in the same as you, i can see that you`re running @2016, is this with the fsb set to 112? Try the 4x setting in your bios. If it is to pump the fsb x 4 instead of 3 it should give you a bit more,
I got the same problem (cough). I have a 1.6a at 2.23 on a P4T-E (140 FSB, 4XMode). This is 512 MB ram, mind you. I barely hit 2000 on both Sandra benchmarks, when I should be hitting at least 3000. I have TURBO RDRAM disabled though.
But I get 11,750 when I run 3DMark2001 and 15,130 when I run 3DMark2000 (Ti 4600 at 315/735), so no big deal .
This may help some of yuo who had the same problem i had!
I just downloaded the updated version of Sisoft Sandra 2002.
Well after that i ran the memory bandwidth test and now i have an average score of 2800+. Before i only used to get 1500. So maybe sisoft sandra 2001 didn't support my ASUS motherboard completely.