Restart and select proper boot device.

[Thaimasker]

Ok so I just newly built my PC. Whenever I boot it it says whats in the title, I press F2 To get to the ASrock UEFI. Not sure what to do from here.

I hooked up my HDD with a multiple Sata cable from my PSU, And have the other SATA in the Optical drive(and that works)
When I go to Boot in the boot menu it only says I have 1 option, AHCI PS ST1000M003, Aswell as fast boot and boot from onboard lan below

 

[Curiousaboutpc]

can you tell me your motherboard

 

[Thaimasker]

Z97 Extreme 4 Asrock

 

[Curiousaboutpc]

Did you check to make sure in the BIOS that the SATA Type is set to AHCI? Your OS may have been installed in AHCI Mode and the BIOS setting might have reverted back to IDE. If it still does not boot,

 

[Thaimasker]

I haven't actually installed my OS Yet, I just put the CD In. It says that its in ACHI Mode with Raid and IDE as options.

 

[Curiousaboutpc]

Did You select Cd/DVD/Cd Rom in Boot options.
If no

Set the DVD drive as Prinmary boot, then you select the dvd drive as first boot (it's in a different tab option). You have to SAVE and EXIT.
If ther is no disk in the dvd drive it will revert to the next bootable device, if any.

 

[Thaimasker]

Looked pretty much everywhere but can't find the option.
any other solutions?

 

[Thaimasker]

Do u think that trying putting Windows on a USB And trying to transfer that would make any difference?
How about changing from AHCI To IDE or raid? or using the dedicated SATA cable. I'm going to sleep now but hopefully I fix it early when I wake up, been having problems with my now gone PSU these past few days and this is my first build too. I
'm desperate to finally get it working 100% lol.

 

[Thaimasker]

Bump. Still not working...

EDIT: Ok So what I did was Change the power cord to go into the Optical drive and now it works! How weird lol.