Boot from another internal HDD

#1
Hello,

I installed a second internal drive into my laptop and now im trying to boot from there. I already hit the "Install PLoP" Button, but nothing happens, when i restart the computer (XPS 15 L502x).

This is, what the main page looks like:
Voreinstellung: Windows 7
Wartezeit: 30 Sekunden
EasyBCD Start Gerät: C:\

Eintrag #1
Name: Windows 7
BCD ID: {current}
Laufwerk: C:\
Bootloader Pfad: \Windows\system32\winload.exe

Eintrag #2
Name: EasyBCD BIOS Extender
BCD ID: {57b1799c-b956-11e4-a68e-df7b57ddba6a}
Laufwerk: C:\
Bootloader Pfad: \NST\AutoNeoGrub0.mbr

Eintrag #3
Name: Microsoft Windows 7
BCD ID: {57b1799d-b956-11e4-a68e-df7b57ddba6a}
Laufwerk: L:\
Bootloader Pfad: \Windows\system32\winload.exe

The last entry was another try by adding a new entry ("L" is the second drive). Nothing happened either.

Hope you can help.

Greets
mec