hi, i have a problem when starting my computer, everytime i opened it it says system halted chassis intruded. how can i fix it.
This is a feature known as Intrusion Detection. It's usually only available on workstations and other expensive PCs. It works by attaching a switch located on the side panel to the motherboard. If the side panel is removed, the switch is opened (circuit is broken) and the motherboard logs the intrusion for next boot. If the switch isn't connected at all, this is electrically the same as it being left open. If you do not have the switch hooked up, this will be a constant problem, but you should be able to disable the security check in the system setup.