L4S5M v1.0C maximum CPU and HDD supported information as below,
CPU: Pentium 4 400Mhz FSB (256K/512K L2 cache) CPU – 2.4G.
Pentium 4 533Mhz FSB (512K L2 cache) CPU – 2.53G
Celeron 400Mhz FSB (128K L2 cache) CPU – 1.8G
Both L4S5M and L4S5MG can support NorthWood 1.8/2.26/2.4GHz CPUs.
Use VGA driver version 2.07y for SiS315 to solve this issue.
Yes, the L4S5M V1.0C supports hard drive capacity up to 160GB.