Does L4IPEM support Hyper-Threading Pentium 4 CPU?
Yes, the L4IPEM V1.0 supports Intel's Hyper-Threading technology. If you install a CPU with Hyper-Threading such as P4 3.06G on this MB, there is "Hyper-Threading technology" item in BIOS to let you enable or disable this new feature.
Does L4IBME V1.0 support USB2.0?
Yes, the L4IBME V1.0 comes with Intel ICH4 chip which supports USB 2.0.
Does L4IBME V1.0 support DDR400?
No, the L4IBME V1.0 supports DDR RAM up to 266MHz.