Question Known-good drives not showing in BIOS ?

Aug 9, 2023
4
0
10
I'm going a bit crazy here and I'm hoping someone can help me... For context I have an Asus Z170-AR mobo.

I have an Unraid server with 4 drives and I attempted to add several new drives to it. My original 4 drives consisted of 1 parity drive and 3 storage drives. I'm attempting to add 4 more drives.

The first thing I did was move my GPU to a different PCIe slot in order for the new drives to fit. I installed the drives and attempted to power things up. The PC would not power up. I have an 850w PSU and an older 1060 GPU, so I really didn't think I was trying to pull too much power. After lots of trial and error I found that one of my power cables is bad. The PC will not power on at all if I attempt to power my drives with it, even on its own.

After that, I replaced the power cables and the computer powers on just fine... however... 1 of my original drives (my parity drive), and none of my new 4 drives are seen by the BIOS. I have tried everything. I've swapped power and data cables between the drives the spin up and the ones that don't. I've moved my GPU back to its original spot in case of some odd power management thing. I've set all SATA ports to Hot Plug enabled. I've reset the BIOS to factory settings. I've changed cables. I've plugged the HDDs to different spots on my PSU. I've even mounted 1 of these hard drives to a different computer and was able to mount it and format it without issue.

What else could I possibly try? Would wouldn't I at least be able to mount my original parity drive? I'm grasping at straws here. Please help!

PS. I do also have an NVME drive installed, in case that makes any difference..
 
Welcome to the forums, newcomer!

When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time?
 
Welcome to the forums, newcomer!

When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time?
Ah of course! My bad. Here’s what I’ve got:

CPU: Intel i7 6600k
CPU Cooler: Corsair Hydro Series H50
Motherboard: Asus Z170-AR
BIOS: Version 0802, American Megatrends
Ram: 16Gb DDR4 2933mhz
HDD: Various WD Red Plus, 6, 8, 12, and 14GB 7200RPM.
Nvme: 2TB Crucial P3 Plus PCIe Gen4
GPU: Nvidia GeForce GTX 1060 3GB
PSU: Corsair RM850i, in use since around 2016.
Chassis: Rosewill RSV-R4200U 4U
OS: Unraid
Monitor: Dell S2716DG
Syba 8 Port SATA 3 Non-RAID PCIe x4 Expansion Card (currently not installed tho)

Thanks!
 
Check your BIOS to see if the SATA or PATA data ports are enabled.
Thanks for the reply MajorPager! I have indeed checked and all 6 are enabled. I also enabled Hot Plug on all of them but it didn't make a difference.

My first 3 SATA show 3 of my original drives there, my fourth drive is not, which is the one I'm attempting to bring back..
 
I found that one of my power cables is bad.
After that, I replaced the power cables and the computer powers on just fine... however... 1 of my original drives (my parity drive), and none of my new 4 drives are seen by the BIOS.
Bad cable may have killed your parity drive and may be some/all of your new drives.
New drives may require 3.3V pin masking.

 
Bad cable may have killed your parity drive and may be some/all of your new drives.
New drives may require 3.3V pin masking.

I mounted one of these problematic drives onto an external enclosure and was able to mount and format the drive fine on another machine. I _should_ try this with all the drives, but I suspect the drives are fine.

Additionally, one of these drives was mounting fine before I fiddled with all this, so I don't think, at least this drive, is a victim of the 3.3V pin issue.