840 Evo 250 "Disk Boot Error" unable to boot from drive.

Sean8180

Reputable
Mar 21, 2014
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Hi everyone,

I've looked through the forums for a while, and it seems like everyone that has my issue has it magically go away. Hopefully mine does too, but in the meantime.

I just built a new rig with an 840 Evo on an ASUS Maximus VI Hero Mobo (already in AHCI mode). The UEFI/Bios is able to see the evo about 50% of the time. It is plugged into SATA port 1.

I was able to install Win 7 64 bit on another hdd and use the migration tool to the copy over to the 840 evo, but I get the "Disk Boot Error, Press CTRL, ALT, DLT" when I try to boot from the evo.

I have wiped/cleaned the drive multiple times in an attempt to get the thing to start working, as well as moving the SATA3 cable to different ports.

Windows see's the drive, with no issues, so I don't think I have a defective drive.

Any thoughts/suggestions are greatly appreciated. Thanks!
 


Hi Hefox,

Thanks for your reply. That was what I attempted to do for the first 24 hours. Windows would unpack all files, then reboot to the install windows screen. It would not go to the actual installation set up. Migrating seemed like the only friendly alternative.
 
i'm picking the migration is causing problems in detection of OS, hence disk boot error.
if you can back anything important up elsewhere. Remove any drives other than optical and ssd and perform clean install.
Why would you have installed elsewhere and migrated to evo?
 


Hi Gee Bee,
I attempted to install with only the optical and the ssd connected in SATA ports 1 and 2, but the install would only go in a "Unpack windows files" repeating cycle, and would not actually install windows. I read that the Samsung Data Migration tool was very successful, so I chose to try that route as well.
 
ok, when it unpacks but not install, and you thus end up back at the install screen.

What option did you try to install with. Were you given the option to format ssd drive and then install to same? or did you just click install to ssd drive.
If the former, change optical drive to legacy mode and ssd to ide/compatible.

Retry
 
Thanks everyone, you've been a great help/support.

Hopefully this helps someone else out as well. I thought I would give it one last go as a new install. I unplugged the HDDs, and changed the SATA3 cable on the 840 evo just to be safe. When I popped in the win7 disk to install, it went to my regular log in! The data migration tool did work.

The issue may have been the SATA3 cables. I'll see if there are any more issues when the HDDs are plugged back in.

Thank you again for your help!
 
Or maybe somehow the cable wasn't plugged in right the first time? SATA cables are cheap, I'd throw that one out to be safe and get new one from anywhere else online (monoprice comes to mind).