Here is the motherboard spec (for IPIBL-LB) I found on HP's website.
Based on this spec, it does not support Core 2 Duo E5x00 or E7x00 CPUs. However, since this MB does support the latest E8x00, Q9xxx CPUs and 1333 FSB , can anyone confirm this? HP has not released any new BIOS update for this MB since 07/2008, do I have to wait for them to release a new BIOS to support a new line of CPUs?