Question about HP Pavilion dv9310us Notebook

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HP DV9310US 17" laptop won't boot, no light on display, disk access light flashes once and that's it. Any ideas?

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Please follow the diagnosis outlined in this article to check whether the backlight lamp or the inverter board are the root cause of the problem or not:
http://www.fixya.com/support/r6430776-troubleshooting_laptop_power_failures

If you connect the external monitor & nothing is displayed on it, then this means that both the backlight lamp & the inverter board are fine. The main indicators in these cases are the sound, and the hard drive LED on the laptop case. If the laptop sounds just like it always does for a minute or two after being turned on, it means it's going ahead and booting the operating system, but the video processor or part of the motherboard circuit for video output has failed. If the laptop just sits there and beeps when you turn it on, or if you hear the fan but not the hard drive chuckling with its active LED flashing away, it means the laptop isn't getting as far as trying to boot the operating system. While this could be due to any number of hardware problems, the most common and easiest to
troubleshoot or repair is RAM failure. If your laptop has two RAM modules installed, try booting with just one and then the other in the primary slot. If your laptop only has one RAM module, you might consider buying one online from a site with a good memory selector, like Crucial.com.

Posted on Oct 24, 2010

Testimonial: "Very sound advice but unfortunately it did not fix my problem."

  • lelandford Oct 24, 2010

    Tried external display and memory module swapping. Nothing worked. Any more ideas?

  • Mohamed Omran Oct 24, 2010

    This would mean that we have a bad motherboard here. We need to find a replacement motherboard, fully disassemble the laptop, swap the motherboards,

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