Dell 700m unknown fault, high score solution Hope for the guidance of well meaning people

It is estimated that it is a problem with the motherboard,It is possible that the unqualified projector causes the voltage to be unstable and burns out your motherboard,It's best to go to customer service to see。

Judging from the fault phenomenon, it should be the motherboard failure, I don't know if the machine is still under warranty? If you are covered by the warranty, contact Dell immediately for repair. If the warranty period is over, the replacement of the motherboard is more expensive, which can be in the thousands.

You can see if there is a laptop repairer in the local area, and it is cheaper to do chip-level repairs.

Enter the machine service tag in the link below to inquire about the warranty, and if it is under warranty, fill in the repair form directly online.

1.First of all, upgrade the graphics card driver to try it, software problems sometimes cause this phenomenon, if it is an intel graphics card, then it is likely to be a driver problem.

2.When there is a problem, an external desktop monitor is tested, if there is a problem with the laptop screen, then the external display should display normally.

Refer to the software troubleshooting method steps:

Continuously click the F8 button to display the advanced configuration menu of the system when the power is turned on.

1.Try to get into the last correct configuration, if you can then be fine.

If not, try the following:

2.Try entering safe mode.

3.If you enter safe mode, there is no problem.

Click"Get started"--"Run"-- Enter it inside"msconfig"Open"System Configuration Utility"

Click on the far right inside"Launch"Then click"Disable all"and then apply OK. Restart your computer (this action is to disable the startup add-on after Windows starts).

If so, it should be a matter of starting the project.

4.In safe mode, you can also select --Start -- Programs --- Accessories--- System Tools -- System Restore -- Restore to the restore point at no problem, remember that the system restore in safe mode cannot be undone.

The premise of doing this is that it is open and a little.

It should be hardware damage, find customer service. It's hard to say which part exactly.

The cost is hard to say, is it still under warranty. There is not much cost when I enter. If you don't have customer service, it's not cheap.

1. Use disk cleanup to clear the system junk files.

2. Start --- running--- enter msconfig and uncheck all the unnecessary enablement items (such as msn qq, thunderbolt, emulet, virtual optical drive, etc.).

3. Detect and kill viruses and malware. Turn off real-time monitoring and keep your virus database updated and disinfect regularly.

4. Check whether the heat dissipation vent is clean.

5. Whether the ambient temperature is too high.

6. You can consider buying a *** heat dissipation bracket to help the laptop dissipate heat.

7. Close some useless running programs to reduce the burden on the fan.

8. Back up your data and reinstall the operating system.

9. If it still doesn't work, it's best to go to the after-sales department to clean up the dust.

Dell Workshop Tracking** for you