Dell M770H, PP39S Hardware Troubleshooter, Dell Diagnostics, Click Start→ Help and Support

Using Support Tools

•Enter system setup and ensure that the boot sequence information is correct (see the Service Manual on the Dell Support website at support.dell.com).

No timer tick interrupt — A chip on the system board might be malfunctioning or motherboard failure (see the Service Manual on the Dell Support website at support.dell.com).

USB over current error — Disconnect the USB device. Your USB device needs more power for it to function properly. Use an external power source to connect the USB device, or if your device has two USB cables, connect both of them.

NOTICE - Solid-state Drive SELF MONITORING SYSTEM has reported that a parameter has exceeded its normal operating range. Dell recommends that you back up your data regularly. A parameter out of range may or may not indicate a potential solid-state drive problem — S.M.A.R.T error, possible solid-state disk drive failure. This feature can be enabled

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or disabled in the BIOS setup (see “Contacting Dell” on page 41 for assistance).

Hardware Troubleshooter

If a device is either not detected during the operating system setup or is detected but incorrectly configured, you can use the Hardware Troubleshooter to resolve the incompatibility.

To start the Hardware Troubleshooter:

1.Click Start→ Help and Support.

2.Type hardware troubleshooter in the search field and press <Enter> to start the search.

3.In the search results, select the option that best describes the problem and follow the remaining troubleshooting steps.

Dell Diagnostics

If you experience a problem with your computer, perform the checks in “Lockups and Software Problems” on page 27 and run the