HP dx6120 HP Business Desktop dx6100 Series Personal Computers Service Referen - Page 232
Diagnostic Front Panel LEDs and Audible Codes, Activity, Beeps, Possible Cause, Recommended Action
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POST Diagnostic Front Panel LEDs and Audible Codes This section covers the front panel LED codes as well as the audible codes that may occur before or during POST that do not necessarily have an error code or text message associated with them. ✎ If you see flashing LEDs on a PS/2 keyboard look for flashing LEDs on the front panel of the computer and refer to the following table to determine the front panel LED codes. ✎ Recommended actions in the following table are listed in the order in which they should be performed. Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Green Power LED On. None Computer on. None Green Power LED flashes every two seconds. None Computer in Suspend to RAM mode (select models only) or normal Suspend mode. None required. Press any key or move the mouse to wake the computer. Red Power LED flashes two times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is resolved. 2 Processor thermal 1. Ensure that the computer air vents are protection not blocked and the processor activated: cooling fan is running. A fan may be blocked or not turning. OR The heatsink/fan assembly is not properly attached to the processor. 2. Open hood, press power button, and see if the processor fan spins. If the processor fan is not spinning, make sure the fan's cable is plugged onto the system board header. Ensure the fan is fully/properly seated or installed. 3. If fan is plugged in and seated properly, but is not spinning, then replace processor fan. 4. Reseat processor heatsink and verify that the fan assembly is properly attached. 5. Contact an authorized reseller or service provider. D-30 361293-003 Service Reference Guide, dx6100