Is your BIOS setup to boot from your Recovery Drive? It needs to Boot from DVD ahead of Hard Drive in the list of booting options.
See if you can launch the Memory Test program from the Advanced Options Command Prompt.
If you can get to the Command Prompt the command required to launch the Memory Diagnostic Tool is MdSched.exe
See what other options are available to you via these too.
How To Access Advanced Startup Options in Windows 8
http://pcsupport.about.com/od/windows-8/a/open-advanced-startup-options-windows-8.htm
Understanding and accessing Windows 8's advanced boot options
http://www.geek.com/articles/chips/windows-8-advanced-boot-20121218/
Windows 8 Advanced Startup Options provide major improvements
http://www.techrepublic.com/blog/window-on-windows/windows-8-advanced-startup-options-provide-major-improvements/6496
Can you get into Safe Mode?
How to start Windows 8 in Safe Mode
http://www.bleepingcomputer.com/tutorials/start-windows-8-in-safe-mode/
Most new machines come with a recovery partition allowing you to go back to the time of purchase, you will have to check your user guides (or the manufacturer's Web Site) for instructions. Choosing that path requires you to save all valuable data first.
These options are built-in to Windows 8 also.
How to restore, refresh, or reset your PC
http://windows.microsoft.com/en-US/windows-8/restore-refresh-reset-pc