Bought an HP all-in-one Omni 27 desktop PC back in 9/2012. Core i7 processor, 8gb RAM, 2TB HDD, wireless keyboard/mouse, etc. Was doing well until a couple days ago, and started getting an error code for an imminent HDD failure. Made sure my Seagate GoFlex backup was updated, and replaced the HDD with a new Seagate 2TB hybrid SSD/HDD. Popped the old one out the cradle, new one into the cradle, and plugged it in and secured it. Easy as pie. Here is where things start to be funny.
Inserted a Windows 10 installation DVD and booted up... machine turned on, but was at a blank screen for a long time before the HP welcome/BIOS screen and then the "hit any key to boot from CD/DVD" message. Did that, installed Windows 10, and was up and running in some time. Installed AVG and my Seagate dashboard software. Identified my backup, and updated Windows. Went to update and restart, and after the pre-shutdown updates were done and the screen turned off, the computer turned off and did not restart. Hmm...
Hit the power button to restart and the machine turned on again, but this time, completely permanent blank screen, no HP/BIOS welcome screen, no HDD activity (either audible or activity light). Tried with WIndows DVD in and out. Nothing. Tried to hard reset (turn off, unplug, hold power button, then plug back in and turn on). Nothing. Uninstalled and reinstalled new HDD. Nothing.
What the heck happened? I just hope if something got fried, my backup certainly didn't. It's unplugged just to make sure.
Thanks in advance for any advice or suggestions.