Mac mini won't boot after installing SSD

[qwez]

Hi guys

So recently i got a new Mac mini, the one with i5 2,5 Ghz and the AMD 6630M graphics. I've been loving it, however i found that the hard drive was a bit too slow for me. I decided to buy an SSD, the one I bought is the Intel SSD 330 series, 120 GB. So I installed it following iFixit's instructions. I did it with no problems, however, I was in shock when it didn't boot.
Black screen, no startup chime. Not even a gray screen. Fan is on, as well the LED. Did I just break my mini?!

I would appreciate your help.

 

[Ifti]

You have formatted and installed OSX on the SSD, havent you??
Failing that, check the connections etc again - also check the SSD in another system in case its a dud - unlikely, but you never know!

 

[qwez]

No, I haven't installed OS X on it. I made an Mountain Lion install USB, but it doesn't really help because the mini is not turning on. I have tried putting the old HD back in it, no success. Could there be a possibility that I broke a cable or something? I looked around, the cables look just fine...

 

[mwhities]

Pull everything out again per he video and make sure your P/S is well connected/seated.

Otherwise, check all connections.

Good luck.

 

[donw35]

Time to reverse what you did and get it back to working original condition. Then. Once it's back online and working you can mount the SSD in a USB case, format it and install fresh ML on it or use carbon copy and copy your old hd to the SSD.