8b040810_el_Boot_Parameters___DataBook___2
[0] pci=nommconf [1] Kernel [2] 
The specific meaning of this parameter is unclear. The reason to use it is that the boot process would hang at the “uncompressing the kernel” message on a new Intel DG33FB motherboard. After adding this parameter, the boot process no longer hangs. See this link for further details.
Kernel Boot Parameters | DataBook®
2