Marty308862, these are some troubleshooting steps you may need to try for this issue.
- Go to BIOS and run default settings. This must enable the onboard video.
- Remove the battery in order to clear CMOS.
- The following link will provide you the drivers available for the HD 4000 that comes on your Intel® Core™ i7-3770K Processor. Please choose the OS you are using and download it once you are able to boot. https://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProductFamily=Graphics&ProductLine=Desktop+graphics+drivers&ProductProduct=3rd+Generation+Intel%C2%AE+Core%E2%84%A2+Processors+with+Intel%C2%AE+HD+Graphics+4000&ProdId=3712&LineId=1100&FamilyId=39
If the issue persisted, please get in touch with our Warranty Department so they can help you to replace the unit: http://www.intel.com/p/en_US/support/contactsupport