[CentOS] external usb hard drve not detected by centos 5

Mon Dec 5 10:42:30 UTC 2011
Nicolas Thierry-Mieg <Nicolas.Thierry-Mieg at imag.fr>

Michel Donais wrote:
>> What does dmesg says when you plug it in?
>
> Here it is

> ahc_pci:0:8:0: Illegal cable configuration!!. Only two connectors on the
> adapter may be used at a time!

this looks suspect
try googling for it