Acer AC100S Acer AC100 Service Guide - Page 83

The lower nibble 'Y' indicates the BUS on which the different routines are being executed. 'Y' can be from 0 to 5. 0 = Generic DIM (Device Initialization Manager). 1 = On-board System devices. 2 = ISA devices. 3 = EISA devices. 4 = ISA PnP devices. 5 = PCI devices System Status Error Codes NOTE: Perform the FRU replacement or actions in the sequence shown in FRU/Action column, if the FRU replacement does not solve the problem, put the original part back in the computer. Do not replace a non-defective FRU. The error messages in the following table indicate the error signals on the HDD access LED indicators on the front panel and the error symptoms. Operating condition System is booting System has booted HDD LED error codes 1 2 3 4 Description SATA controller failed USB controller failed LAN controller failed Fan failed Memory failed Boot device not found Disk failure BIOS Recovery Perform the BIOS recovery if the BIOS flash ROM has become corrupted. The following sections provide instructions on how to recover BIOS settings. To create a BIOS Recovery disk: 1. Prepare a USB storage device. 2. Connect the USB storage device to a USB port on your computer. 3. Copy the target BIOS ROM file to a USB storage device. 4. Rename the target BIOS to "AMIBoot.ROM". 5. Unplug the device. To perform a BIOS recovery: 1. Create the BIOS Recovery disk as described in the previous section. 2. Connect the BIOS Recovery disk on the USB port on the system. 3. Depending on the current state of the system, do either of the following: • If the system has crashed: Power on the system. The system initializes the BIOS recovery process and the system will reboot automatically after the flash update is completed. Chapter 6 77