Can't multi-boot, anybody knows why?

[AWS]

I have Win7_Pro installed by itself on an SSD as drive 0, also have Win8_Pro on another SSD as drive 1, also by itself, with a third HDD for Data and Backups, on drive 2.

 

I should get the choice to select either Win 7 or Win 8 from the boot menu, which is supposed to show up if I have 2 drives with one OS each, right?

 

Well, it doesn't work that way for me:

First, it doesn't show me the menu for me to select the OS, it goes straight to Win 7, which is on drive 0, and it doesn't recognize Win 8 on drive 1 at all.

 

so I thought that maybe I had a bad port 1, but that wasn't the case, as I disconnected drives 0 and 2, leaving Win 8 on drive 1 to see if it would recognize it at all. It did, it booted right to Win 8 on port 1, so I did the same with Win 7 on drive 1 (it

already worked on 0, right?)

 

Then I did the same for both on drive 0, then drive 2, and they both booted fine, so I don't have any bad ports, but why don't I get the boot menu?

 

I'd greatly appreciate some help, If anybody has come across this problem.

 

Thanks in advance.

 

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