Acer X3950 Manuale Utente

Chapter 4

67

Index of Symptom-to-FRU Error Message

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 the right column is the most likely cause. 

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.

NOTE: Ensure the memory modules are installed properly and the contact leads are clean before diagnosing 

any system problems.

Processor fan does not run but power
supply fan runs.



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.



Mainboard

Processor test failed.



Processor



Mainboard

Memory test failed.



Memory module



Mainboard

Incorrect memory size shown or repeated
during POST.



Insert the memory modules in the DIMM sockets properly, 
then reboot the system.



Memory module



Mainboard

System works but fails to enter power
saving mode when the Power
Management Mode is set to Enabled.



Enter BIOS Setup and load default settings.In Windows 
Systems, check settings in Power Management Property of 
Control Panel.



Reload software from Recovery CD.

Blinking cursor only; system does not
work.



Diskette/IDE drive connection/cables



Diskette/IDE disk drives



See “Undetermined Problems”.



Mainboard