Dell Laptop Cpu Fan Starts Then Stops

Was convinced it was the mobo so we bought a new one.

Dell laptop cpu fan starts then stops.

Eventually i just re installed windows re formatting the hard drive but everything was running slowly after about a minute or two of running windows. Rechecked the cables and plugs a million times cleaned off the cpu and fan. Use a can of compressed air to remove dust or debris from the air vents dust filters if any and cooling fan fins. Check the air vents on the pc for dust or debris.

1 disconnect the power cord from the back of the computer open up the case. Click the cpu column to sort applications and. Press and hold down the power button for thirty seconds to drain any excess static power. Refer to the user manual of your dell pc.

3 disconnect the main 20pin atx power connector from the motherboard the square 4pin atx2 power connector. Disable processes causing cpu fan to remain constant first launch task manager press windows key x task manager then click the processes tab. Bought a psu tester and everything passes on the psu. Please release static power and check if the system is working fine follow the steps below.

Computer won t start fan repeatedly starts and stops and starts and stops and with 2 short beeps. Replace the battery and charger ac adapter power cord and turn your dell notebook on. Remove the battery and charger ac adapter power cord from your dell notebook press and hold the power button for 20 seconds to discharge any residual current inside the laptop. Air vents may be located in various places depending on the pc model.

2 wear an anti static bacnd or at very least discharge your static by touching a metal surface. After it turns off and on repreatedly for about 30 seconds 4 seconds on 4 seconds off 4 seconds on etc there are 2 short beeps made by the computer. Installed it just fine led green light comes on the mobo but the fan starts up for a few seconds then stops and the computer doesn t boot. Switch off the system.

Hi all hoping someone can help me. Laptop turns on then shuts off. This clears your ram and is like hardware reset.