Acer AT110 F2 Acer AT110 F2 Service Guide - Page 66

Troubleshooting Error Symptoms List NOTE: To diagnose a problem, first find the error symptom in the left column. If directed to a check procedure, replace the FRU indicated in the check procedure. If no check procedure is indicated, the first Action/FRU listed in right column is the most likely cause. Error Symptom Action/FRU Processor / Processor Fan NOTE: Normally, the processor fan should be operative, and the processor clock setting should be exactly set to match its speed requirement before diagnosing any processor problems. Processor fan does not run but power supply fan runs. 1. 2. Ensure the system is not in power saving mode. With the system power on, measure the voltage of processor fan connector. Its reading should be +12Vdc. Its reading should be +12Vdc. If the reading shows normal, but the fan still does not work, then replace a good fan. Main board. Processor. Main board. Processor test failed. 3. 1. 2. Main board and Memory NOTE: Ensure the memory modules are installed properly and the contact leads are clean before diagnosing any system problems. Memory test failed. Incorrect memory size shown or repeated during POST. 1. 2. 1. 2. 3. 1. 2. 1. 2. 3. 4. See "Memory" Main board Insert the memory modules in the DIMM sockets properly, then reboot the system. Memory module. Main board. Enter BIOS Setup and load default settings. Reload software from Recovery CD. Diskette/IDE drive connection/cables Diskette/IDE disk drives See "Undetermined Problems". Main board System works but fails to enter power saving mode when the Power Management Mode is set to Enabled. Blinking cursor only; system does not work. Hard Disk Drive NOTE: Ensure hard disk drive is configured correctly in BIOS Setup, cable/jumper are set correctly before diagnosing any hard disk drive problems. (If only one drive is installed, please make sure the drive is connected to master connector or the drive is set to master.) Hard disk drive test failed. 1. 2. 3. 4. 1. 2. 3. Enter BIOS Setup and Load default settings. Hard disk drive cable. Hard disk drive. Main board. Enter BIOS Setup and Load default settings. Hard disk drive cable. Hard disk drive. Hard disk drive cannot format completely. 62