HP dx2100 Troubleshooting Guide - Page 21
Diagnostic Front Panel LEDs and Audible Codes, Activity, Beeps, Possible Cause, Recommended Action - ram
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Troubleshooting Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Green Power LED On. None Computer on. No action required. Green Power LED flashes every two seconds. None Computer in Suspend to RAM mode (some models only) or normal Suspend mode. Press any key or move the mouse to wake the computer. Green Power LED stays on for four seconds then goes off for one second. None Processor thermal protection activated: A fan may be blocked or not turning. OR The heatsink/fan assembly is not properly attached to the processor. 1. Ensure that the computer air vents are not blocked and the processor cooling fan is running. 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. Green Power LED flashes five times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. 5 Pre-video memory 1. Reseat DIMMs. Power on the error. system. 2. Replace DIMMs one at a time to isolate the faulty module. 3. Replace third-party memory with HP memory. 4. Replace the system board. Troubleshooting Guide www.hp.com 2-11