got a new case, installed everything now my other 2 hard drives are not showing up

[Darnock]

I have an stix rog z270e, new case, put everything in it and now 2 hard drives are not showing up

I have ran diskmgmt.msc and they are not listed. I have checked the hdds to make sure they are getting power and have a sata cable,, everything looks good on my end, how can I fix this?

[Rob_W_]

Are these new hdd’s? If they are then they will need initialising before being recognised .
In disk manager does it show unalocated space the size of what your hdd is ?*

[Darnock]

no they are not new, they worked right before i took them out to change cases, i have checked the sata cable and even moved it to different ports, in disk manager it is only showing my ssd

[Darnock]

Operating System
Windows 10 Pro 64-bit
CPU
Intel Core i5 7600K @ 3.80GHz 29 °C
Kaby Lake 14nm Technology
RAM
32.0GB Dual-Channel Unknown @ 1070MHz (15-15-15-36)
Motherboard
ASUSTeK COMPUTER INC. STRIX Z270E GAMING (LGA1151) 25 °C
Graphics
STD HDMI TV (1360x768@60Hz)
4095MB NVIDIA GeForce GTX 1070 (EVGA) 41 °C
Storage
232GB Samsung SSD 850 EVO 250GB (SATA (SSD)) 38 °C
Optical Drives
No optical disk drives detected
Audio
NVIDIA High Definition Audio