My IBM Intellistaion Z Pro 6865 doesnt start up. The problem being that it is stuck in "power on quick test" mode. While trying to un install a graphics card, ( not the main dislay), the system had been powered down using a "force overide" (holding the power button). So the system trys to startup in quicktest but cant. It stays quicktest untill I "force overide" to turn it off. I think it is tryin use two different hardware configurations at the same time.\r\n\r\n\r\nWhat should I do to fix this?