I read most of what I do on a dead PC at http://forum.notebookreview.com/threads/samsung-np700z5c-bootloop-bios-setup-not-working.737110/
There's the reset, there's the old yank the HDD out and a note about the USB things (unplug!!!)
It's an all in one so don't go where you are uncomfortable.
Hi everybody, I have a "small" problem with my all in one Samsung DP700 27", it was downgraded to windows 7 without any major difficult, it was working perfect for more than one year, yesterday I tried to reinstall the original 8.0 OS with the OEM recovery disc, before do it I reset to default the Bios settings, after that it simply doesn't start, no F2 message at the start up, just black screen for few seconds and than the backlight goes off and nothings more happen, power light stays on and in order to power off I need to keep the power button pressed.
I already tried to remove the power cord and press the power buttom, remove the RAM, remove the Button cell battery, reset the bios via RTC jumpers, but there is no way to restart it.....
Please help me if you can..... Grazie, Fabio.

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