(Requiem) Level 9 help please,

[ratman]

There should be correct schematic diagram on the wall over the computer desk. Or do just like i did in the first time. When you add one of the cards in correct hole, the tiny red light turns up. Oh.. and you need all 6 cards!!!

Thanks mate I didn't realize that

Spoiler below!

not even one card can be in the wrong place, I shouldn't be putting them all at once, only one by one

Now, after finishing the game I have more questions than answers