I have to use a PC104+ stack: CPU > 1.5 GHz., Gigabit ethernet, audio, 2 firewire and 4 CAN minimum. The space available is for 2 boards only: the CPU and an additional custom board. I think to design the 2 firewire and 4 CAN board, does a CPU with this feature exist? I found slow CPU < 800MHz, or fast without Gigabit, or with Gigabit but without audio... There is any layout problem to connect 2 chips (firewire and a PCI bridge) to a single PCI connector ? Any help will be appreciated. Bru.