The L4S8M V1.2 is built in CMI 9739A Audio chip with additional Dolby Digital decoder which supports up to 6 channels.
Yes, the L4S8M V1.2 comes with SiS 963 chip which supports USB 2.0.
Nein, L4S8M v1.2 unterstützt nur bis max. DDR400.
No, the L4S8M-648FX V1.3 doesn't support P4 Prescott CPU.