Acer Veriton L4610G Acer Veriton L4610G Desktop Service Guide - Page 66

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. Ensure the system is not in power saving mode. See "Power Management" in chapter 2. 2. 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. 3. Main board. Processor test failed. 1. Processor. 2. Main board. 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. 1. See "Memory" 2. Main board Incorrect memory size shown or repeated during 1. Insert the memory modules in the DIMM sockets POST. properly, then reboot the system. 2. Memory module. 3. Main board. System works but fails to enter power saving mode when the Power Management Mode is set to Enabled. 1. Enter BIOS Setup and load default settings. In Windows Systems, check settings in Power Management Property of Control Panel. 2. Reload software from Recovery CD. Blinking cursor only; system does not work. 1. Diskette/IDE drive connection/cables 2. Diskette/IDE disk drives 3. See "Undetermined Problems". 4. Main board 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. Enter BIOS Setup and Load default settings. 2. Hard disk drive cable. 3. Hard disk drive 4. Main board. Hard disk drive cannot format completely. 1. Enter BIOS Setup and Load default settings. 2. Hard disk drive cable. 3. Hard disk drive. 4. Main board. Hard disk drive has write error. 1. Enter BIOS Setup and Load default settings. 2. Hard disk drive. Hard disk drive LED fails to light, but system 1. With the system power on, measure the voltage of hard operates normally. disk LED connector. 2. Hard drive LED cable. 60