That is correct as it always has been for every memory advance the pin set gets changed so there are no mistakes of sticking the wrong sticks in the slots. As maziar stated the p5e deluxe is a nice board (bought one as a replacement board myself) cant go wrong with asus boards, my only issue is provantage ID STAY AWAY FROM THEM (goolge shopping results of any pc product they may have and read the customer reviews) besides you can get that same board cheaper other places (microcenter.com for one) they have it for 115$ reg but has been onsale for last month at only 95$
Up till now for years I only bought ASUS boards. If I can find an asus board that fit my needs I would much rather go with that. But this one doesn't seem so bad. DDR3 and DDR2 support.
Also it is not possible to have 6GB of ddr2 Ram correct? Isn't that max supported by ddr2 4gb? If it IS possible to have more then 4GB of DDR2, then the msi board i posted above really doesn't support my needs since it only has 2 slots of DDR2 limiting me to 4GB. I would like to use all 6GB if possible ofc.
That MSI looks good too,however boards with both DDR2 and DDR3 RAM support doesn't OC as well as only DDR2 or only DDR3 Motherboards due to memory controller,so you may want to consider the P5E DELUXE which i posted.
And its possible to have 6GB of DDR2 RAM,max memory depends on the motherboard you are using,for example P5E DELUXE supports max 8GB of memory.