Try replacing the CMOS battery.
I am having issues with a M10000 that I recently won on Ebay that I am told was tested before listing, however I am having a problem even getting in to BIOS.
I have tried two different sticks of RAM and I have slao tried two different PSU's. And finally I have tried two or three different HDD's and re-moved CD/DVD etc. When HDD and/or DVD drive are connected it see them connected on POST.
I can't see all the error on the screen as it cuts off some of the meesage on the left handside of the screen. But before it finishes POST it shows:
system error - Defaults loaded
has been changed
master COU settings in the CMOS setup and remember before quit!
Continue, DEL to enter SETUP
I then press DELETE and the screen then goes all pixel-ated, but only in the colours associated with BIOS ie bluy, yellow, white. And then nothing happens???
I have just tried a different battery in it and no change I will buy a new battery just incase.. not expensive
One thing that I have tried... when the screen goes strange when I think that I am in BIOS I pressed F10, F11, F12 and then ENTER. To emulte that I have been in BIOS and saved changes, it then re-boots. After then splash screen instead of it showing the error it just stays as a black screen.
The only way to stop it is to clear CMOS and then i'm back to the begining