HELP: Startup failure after installing SSD

[colorofwind]

Hello, I installed a Crucial M4 128GB SSD into my 2011 iMac 27' yesterday. At first everything seemed fine. I formatted the SSD in Lion. But later when I started the computer again, Apple logo and a progress bar showed. Before it finished, the computer shut down itself. I've tried resetting PRAM and SMC, no luck. I tried to use internet recovery. The rotating globe showed and a few seconds later, it shut down again.

Now my iMac won't turn on when I press the power button. Unplug the power cable doesn't help either.

Did I mess with the hardware? Or is it software related?

Any comments or suggestions are welcome.

Thanks!

 

[user418]

Did you go to system preferences>startup disk and select your SSD as the new startup disk?

 

[colorofwind]

Did you go to system preferences>startup disk and select your SSD as the new startup disk?

No, because I haven't install Lion OS into SSD yet. Now it boots from the original hard drive.

Besides, I suspect the problem is due to RAM. Don't know if they are faulty but they run perfectly before.

 

[Medic278]

If your iMac is booting off your old drive then your RAM is not the problem. How did you format the SSD? You need to select Apple OS Extended Journal

 

[colorofwind]

If your iMac is booting off your old drive then your RAM is not the problem. How did you format the SSD? You need to select Apple OS Extended Journal

I formatted it using Disk Utility. Yes the format I chose was Mac OS Extended(Journaled). I originally have 4 RAMs, 4GB each. Should try using only one RAM probably.

 

[colorofwind]

After I take off the SSD, system works perfectly. Maybe it's the problem of the SATA cable I ordered from eBay?