|1st pic: why is it that you're not concerned about the memory running at the wrong speed or the CMOS checksum error?|
2nd pic: indicates a problem with the nvidia graphics driver.
Voltages are allowed a 5% +/- tolerance. 11.88v for the +12v rail is well within the tolerance range (11.4v - 12.6v).
Fix your BIOS settings, disable the floppy drive (since you apparently don't have one), change the RAM speed to 533MHz, then boot into safe mode & uninstall the nvidia driver. Reboot & install the latest available driver supported by your video card.
If that doesn't do it, the card is most likely bad. Are you saying the card is out of warranty?