It looks like some motherboards can do both, but the one you're looking at only says DDR2:
D915PBLL
Intel Intel® Pentium® 4 Processor Extreme Edition 3.40GHz, 2MB L3, 04B
Intel® Pentium® 4 Processor 550-560¹, 3.40-3.60GHz, 800 FSB, 04B
Intel® Pentium® 4 Processor 520-540¹, 2.80-3.20GHz, 800 FSB, 04A
Intel® 915P Express Chipset
Dual Channel DDR2
Supports Hyper-Threading Technology²
Intel® High Definition Audio
Audio
Intel® Matrix Storage Technology
Serial ATA RAID
RAID
10/100 LAN
USB 2.0
Serial ATA
Parallel ATA
Here's a comparison of all the chipsets:
http://www.intel.com/design/ch...+comparison_chart&