Cloned HHD to new SSD and cant boot to SSD

lovt16

Reputable
May 9, 2015
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4,510
So i have an alienware x51 pc and just bought a 250gb samsung ssd for it, my plan is to keep my 1tb hd for mass storage and use the ssd for boot and some games. i installed and configured it without a problem, made a backup of my original hdd to an external and then deleted the bulk of the data off of it so it was small enough to clone. Once it was small enough to clone over i used EaseUs todo to clone the hdd to the ssd. i restarted my computer and booted up in the bios to change the ssd to the primary boot drive. It was in uefi mode so i switched it to legacy and set the ssd to first boot priority and the hdd to second. then i set the ssd as the first boot order. but the problem is i cant get it to boot now if im in legacy mode, with the ssd set as priority, or even with the hdd. if i change back to uefi mode it boots fine and the ssd shows up in my computer. in my bios there is no option for raid or ahci at all so i can only assume its already set up with ahci, but i still dont know why i cant boot to the ssd.

I only got this far though my own research and youtube tutorials and i cant find anything on why it wont boot. Thanks for any advice.
 
1. You stated that after you cloned the (now-reduced) contents of your 1 TB HDD to the Samsung SSD you set the BIOS mode to Legacy from UEFI. What was the purpose of this?

2. Was there any special reason why you didn't use the Samsung Data Migration program to undertake the disk-cloning program? We've found that program quite reliable.

3. It just doesn't seem possible that your Alienware X51 motherboard does not contain a AHCI setting. Recheck and do set the SATA controller setting to AHCI.

4. I think it would be advisable for you to repeat the disk-cloning operation with the SDM program. I'm assuming, of course, that when you deleted data from your HDD in order to accommodate the disk-space capacity of your SSD you didn't inadvertently delete any files impacting the OS. Also assuming that prior to the disk-cloning operation your HDD booted and functioned problem-free.