Acer Veriton Z291G Service Guide - Page 65

Message Displayed Unknown BIOS error. Error code = 004Ah Unknown BIOS error. Error code = 004Bh Floppy Controller Failure Description This message is displayed when ADM module is not present in the AMIBIOS8 ROM. This message is displayed when language module is not present in the AMIBIOS8 ROM. Error in initializing legacy Floppy Controller. Index of Symptom-to-FRU Error Messages To use the information in this section to diagnose a problem: 1. Find the error symptom in the left column. 2. If directed to a check procedure, replace the FRU indicated in the check procedure. If no check procedure is indicated, the first Action/FRU item listed in the right column is the most likely cause. NOTE If you cannot find a symptom or an error in this list and the problem remains, see "Undetermined Problems" on page 65. Processor/Processor Fan-related Symptoms Symptom/Error Processor fan does not run but power supply fan runs. Processor test failed. Action/FRU • Ensure the system is not in power saving mode. • With the system powered on, measure the voltage of the processor fan connector. Its reading should be +12Vdc. If the reading shows normal, but the fan still does not work, then replace the heat sink fan. • Mainboard • Processor • Mainboard 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. Mainboard and Memory-related Symptoms Symptom/Error Action/FRU Memory test failed. • Memory module • Mainboard Incorrect memory size shown or repeated • Insert the memory modules in the DIMM sockets properly, during POST. then reboot the system. • Memory module • Mainboard System works but fails to enter power • Enter CMOS Setup and load the default settings. In Windows saving mode when the Power Management systems, check settings in Power Management Property of Mode is set to Enabled. the Control Panel. • Reload software from Recovery CD. Blinking cursor only; system does not work. • IDE drive connection/cables • IDE disk drives • See "Undetermined Problems". • Mainboard Veriton Z290G AIO Computer Service Guide 57