HP dx2310 Troubleshooting Guide: HP Compaq Business Desktops dx2310/dx2318 Mic - Page 21

Troubleshooting Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Recommended Action Green Power LED On. None None Green Power LED flashes None every two seconds. Not support wake up by mouse/keyboard. Should be Press Power button. CPU Fan weak 2 (RPM < 1000) or not turning, Display Warning message and Long Beep for 5 sec and shut down. System Fan weak (RPM < 1000) or not turning, Display Warning message and Long Beep for 5 sec and shut down. 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. Red Power LED flashes 5 1. Reseat DIMMs. Power on the system. five times, one every second, followed by a 2 second pause. Also 5 simultaneous beeps will 2. Replace DIMMs one at a time to isolate the faulty module. 3. Replace third-party memory with HP memory. be heard. 4. Replace the system board. Red Power LED flashes 6 times, one every second, followed by a 2 second pause. Also 6 simultaneous beeps will be heard. 6 For systems with a graphics card: 1. Reseat the graphics card. Power on the system. 2. Replace the graphics card. 3. Replace the system board. For systems with integrated graphics, replace the system board. Red Power LED flashes 8 8 times, one every second, followed by a 2 second pause. Also 8 simultaneous beeps will be heard. 1. Reflash the system ROM with the latest BIOS image. 2. Replace the system board. Troubleshooting Guide www.hp.com 2-11