Sleep Indicator light flashing after HDD replacement

I just swapped out my HDD with a SSD and now when i turn the computer nothing boots up just the SIL flashes once every couple of seconds. I placed the original HDD back to try fix it but no avail. What could it be?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0