COMPUTER DOES NOT BOOT UP

Check your monitor cable connections. If not solved, try a different monitor.

Replace the Fan. Normally on desktops there are two fans. One in the Power Supply and One that sits on top of the CPU Heat Sink. The computer will run hot and shut down if the fan is not running. This can cause damage to the motherboard.

Now some systems the fan will turn on and off as needed. if your system is not shutting down or you are not getting any messages about the fan or having boot issues because of the fan, don't worry about it. It will turn on when needed.

If computer does not start normally, use this checklist to identify specific symptoms and take the recommended corrective actions to resolve the problems.Perform a Hard Reset Do these actions first to clear all temporary setting before troubleshooting the problem.Disconnect all peripheral devices and remove all USB devices and media cards Disconnect the AC power adapter, remove the battery, and then press and hold the power button for at least 15 seconds to drain residual charge

1. Reconnect the AC power adapter (do not connect the battery), press the Power button and look for the LEDs to blink or glow, and listen for the sound of a disk drive and fan turning.

Perform each recommended corrective action and then attempt to restart the computer.Symptom 1: LED lights do not glow, display is black, no fan or drive sounds are heard, and computer does not startIf LEDs do not glow or blink when AC power adapter is attached and power button is pressed, there is no power available to the notebook.

• Check AC adapter wiring and power connection to the notebook.
• Connect a different AC power adapter and remove battery, then restart notebook.
• Connect a different battery and disconnect AC power adapter, then restart notebook.
• If there is no power available at the notebook, contact HP to purchase a replacement battery or AC adapter.

Symptom 2: LEDs blink or computer beeps but does not start Blinking LEDs or beep tones indicate a hardware failure during the pre-start up testing.

• Count number of blinking LEDs or beeping tones to help with diagnostics testing.
• Contact HP for technical assistance. There are no other user-initiated troubleshooting actions until error codes are resolved.

Symptom 3: LEDs glow, fan noise may be heard briefly, display remains black, and computer fails to startup or boot Usually occurs if a component is installed incorrectly, or there is a device conflict or failure.

• Connect an external monitor to check if the problem is the built-in LCD display or graphics card.
• Remove all CD/DVDs, SD cards, USB devices, peripherals and do a Hard Reset .
• If memory or hard drive components were replaced, reinstall original components.
• Remove memory modules and replace one-at-a-time.
• Remove and reseat hard drive.
• If possible, turn on power, press F10 to enter BIOS mode, and run Memory Test and Hard Drive Test .
• On newer notebooks, turn on power, press Esc to enter UEFI mode, and run Memory Test and Hard Drive Test .
• If possible, turn on power, press F8 to enter Windows Advanced Boot Options , and select Repair Computer option, or enter Safe Mode and run Memory Diagnostics .
• If all other methods fail , but computer can boot to BIOS, use recovery disk to recover the computer to original condition.
  Note: All programs and data are destroyed during recovery.

Symptom 4: Computer may display an error message on a black screen during startup or boot

• Search www.microsoft.com for terms in error message.
• Search www.hp.com for terms in error message.
• If possible, turn on power, press F10 to enter BIOS mode, do the corrective actions listed under Symptom 3 to run memory and hard drive tests.

Symptom 5: Computer displays a blue screen or continually re-starts After an error message is displayed, you can usually bypass the error and continue to run the notebook in Safe mode to install an updated BIOS or driver.

• Search www.microsoft.com for terms in error message.
• Search www.hp.com for terms in error message.
• If possible, turn on power, press F10 to enter BIOS mode, and run diagnostic Memory test and Hard Drive test .
• If possible, turn on power, press F8 to enter Windows Advanced Boot Options , and do one or more of the following:
  • Select Disable automatic restart on system failure to view error message.
  • Run Repair Your Computer .
  • Run Last Known Good Configuration .
  • Select Boot into Safe Mode and then select Run a Microsoft system restore .
  • Select Boot into Safe Mode and then select Uninstall recently installed programs .
  • Select Boot into Safe Mode and then run Windows Update .

Symptom 6: Computer displays the Windows logo screen and stops respondingIf no error message displays, turn on power, press F8 to enter Windows Advanced boot options ,and select Disable auto-restart to view error message.

• Search www.microsoft.com for terms in error message.
• Search www.hp.com for terms in error message.
• If possible, turn on power, press F10 to enter BIOS mode, and select Restore the BIOS defaults (F9) .
• If possible, turn on power, press F10 to enter BIOS mode, and run Hard Drive Test .
• If possible, turn on power, press F8 to enter Windows Advanced Boot Options , and select Last Known Good Configuration (Advanced) . .
• If possible, turn on power, press F8 to enter Windows Advanced Boot Options , and select Boot into Safe Mode and then Uninstall recently installed programs .

Update Computer After Resolving A Problem When the computer starts into Windows normally, you should install the latest updates and patches to prevent other start-up problems.

Perform a Hard Reset Do these actions first to clear all temporary setting before troubleshooting the problem.Disconnect all peripheral devices and remove all USB devices and media cards.Disconnect the AC power adapter, remove the battery, and then press and hold the power button for at least 15 seconds to drain residual charge.Reconnect the AC power adapter (do not connect the battery), press the Power button and look for the LEDs to blink or glow, and listen for the sound of a disk drive and fan turning.Perform each recommended corrective action and then attempt to restart the computer.Symptom 1: LED lights do not glow, display is black, no fan or drive sounds are heard, and computer does not startIf LEDs do not glow or blink when AC power adapter is attached and power button is pressed, there is no power available to the notebook Check AC adapter wiring and power connection to the notebook Connect a different AC power adapter and remove battery, then restart notebook.Connect a different battery and disconnect AC power adapter, then restart notebook Symptom 2: LEDs blink or computer beeps but does not start Blinking LEDs or beep tones indicate a hardware failure during the pre-start up testing Count number of blinking LEDs or beeping tones to help with diagnostics testing Symptom 3: LEDs glow, fan noise may be heard briefly, display remains black, and computer fails to startup or boot Usually occurs if a component is installed incorrectly, or there is a device conflict or failure Connect an external monitor to check if the problem is the built-in LCD display or graphics card Remove all CD/DVDs, SD cards, USB devices, peripherals and do a Hard Reset If memory or hard drive components were replaced, reinstall original component Remove memory modules and replace one-at-a-time Remove and reseat hard drive If possible, turn on power, press F10 to enter BIOS mode, and run Memory Test and Hard Drive Test On newer notebooks, turn on power, press Esc to enter UEFI mode, and run Memory Test and Hard Drive Test If possible, turn on power, press F8 to enter Windows Advanced Boot Options , and select Repair Computer option, or enter Safe Mode and run Memory Diagnostics If all other methods fail , but computer can boot to BIOS, use recovery disk to recover the computer to original condition Symptom 4: Computer may display an error message on a black screen during startup or boot Search www.microsoft.com for terms in error message Search www.hp.com for terms in error message

If possible, turn on power, press F10 to enter BIOS mode, do the corrective actions listed under Symptom 3 to run memory and hard drive tests.

Symptom 5: Computer displays a blue screen or continually re-starts After an error message is displayed, you can usually bypass the error and continue to run the notebook in Safe mode to install an updated BIOS or driver.

• Search www.microsoft.com for terms in error message.
• Search www.hp.com for terms in error message.
• If possible, turn on power, press F10 to enter BIOS mode, and run diagnostic Memory test and Hard Drive test .
• If possible, turn on power, press F8 to enter Windows Advanced Boot Options , and do one or more of the following:
  • Select Disable automatic restart on system failure to view error message.
  • Run Repair Your Computer .
  • Run Last Known Good Configuration .
  • Select Boot into Safe Mode and then select Run a Microsoft system restore .
  • Select Boot into Safe Mode and then select Uninstall recently installed programs .
  • Select Boot into Safe Mode and then run Windows Update .

Symptom 6: Computer displays the Windows logo screen and stops responding If no error message displays, turn on power, press F8 to enter Windows Advanced boot options ,and select Disable auto-restart to view error message.

• Search www.microsoft.com for terms in error message.
• Search www.hp.com for terms in error message.
• If possible, turn on power, press F10 to enter BIOS mode, and select Restore the BIOS defaults (F9) .
• If possible, turn on power, press F10 to enter BIOS mode, and run Hard Drive Test .
• If possible, turn on power, press F8 to enter Windows Advanced Boot Options , and select Last Known Good Configuration (Advanced) . .
• If possible, turn on power, press F8 to enter Windows Advanced Boot Options , and select Boot into Safe Mode and then Uninstall recently installed programs .

Update Computer After Resolving A Problem When the computer starts into Windows normally, you should install the latest updates and patches to prevent other start-up problems.

• With the power off open the case. Generally it is the left panel that will slide off after you remove the screws in the back.
• You will see the fan setting on top of the CPU heat sink.
• Turn on the computer. That fan should run.
• If not, turn off the computer, remove the fan and take it to a mom & pop computer store and ask for a replacement. Shouldn't be very expensive.
• If you don't feel comfortable do what I suggest, take the tower to a mom & pop computer store and they can do it. There might be a minimal charge in addition to the fan.

I would not run the system very long (minutes) until the fan problem is resolved as you can over heat the CPU and ruin it.
I do this for fun & 4 thumbs not for $$$$
Jim

Hi,

First, if the CPU fan is not spinning properly, you should NOT run the system. The fan needs to be replaced.

If the fan is running normally, you may boot by pressing F1.

Before replacing with a new fan, you can first try re-seating the plug for the fan in your computer. The fan's plug may have been bumped or loosed. Re-seat the plug located at J1F1 as shown in the picture below and be sure that it is properly connected.

Hope this helps.

Contact GATEWAY, and get them to fix your laptop.
The fan is designed to run at "full-speed" when you first turn it on, and then there are temperature sensors that slow the fan down, to minimize noise, while the computer is "cool" enough that the fan does not need to run. The sensor is malfunctioning, and is not turning-on (or turning-up) the fan when the computer gets "warm".

change the boot sequence from the BIOS and set the first boot to the Hard disk and check.

The Inspirion 5150 is a wonderful computer. reseat the memory chips it should fix it. or else. you cna run the hardware test. to run the hardware test. turn off the computer and then press the Fn key on the keyboard hold it down and then turn on the computer. the computer will go into diagnostic boot where it will test all the components. and you cna release the fn key then. it will tell you which h/w part has gone bad. i think its a motherbaord, but you can try to reseat the memory may be it will fix it.
how to reseat the memory? click here to see how to reseat all the components in 5150. Good luck.

check to see that it is not overheating. If cpu fan is not blowing (could be frozen up) or if the fan in the power supply is clogged with dust, the computer may be overheating and refusing to some on. If it is dust, arrange to blow it out completely. take off cover and try to start the machine, the fan should turn on the CPU.