@MRamos:
Atleast the IDE-interface of the A4000T will make the computer wait 30seconds during boot if no device is connected.
As Framiga said the CSPPC firmware can patch this behaviour. Though, it will always wait each time you start your computer with the power-switch.
If you want it to not wait even when you start from cold, either attach a device to the IDE-controller or build
this.
I dont know how much wait the A4000T onboard SCSI adds.
/Patrik
