SUPER UPDATE :

I went ahead and got my gskill ram (2x2048@1066)
and had to set the timings manually 5-5-5-15 (and devider 1:2.66)
was working well, was looking up info on raid cards (don't think the speed of onboard is doing my raptors justice)
and, found that MSI posted new drivers for the Promise PDC42819
and new bios 1.4 final.
so i said, what the heck, lets format..... and i did some testing too...

SOFTWARE USED :
HD TACH version 3.0.4.0
WINRAR V3.71 benchmark

TLB shutoff with SAM's Tool Version 1.05

I wish i had screenshots of it all, might reflash and try again, but the results are this :

BIOS 1.3B3 -
WINRAR - ~1,100
HDTACH - Long bench (32M) ~96MB/s Sequential Read Speed

BIOS 1.40 - (flashed, booted, VISTA installed new promise devices/reinstalled devices, whatever, required reboot)
WINRAR - ~1,450
HDTACH - Long Bench (32M) ~150MB/s Sequential Read Speed (have picture)

Both HDTACH graphs had pretty much the same ramping, just differnt values at the keys.

Now, not very great on my testing, cause i didn't expect anything,
and it was just for my own, so i can located a better raid card (any suggestions? (remember, I am a army man (read:tight funds)))

can anyone test themselves? and see if i just found a fluke?