Question SSD disappears after adding another SSD to the system ?

[lightc]

Hi there,
In the last few days, I ran into a problem with my before perfectly fine PC. I added an additional SSD to my system, which was fine on the first boot, it showed up in BIOS, I was able to make it as a new drive in Windows drive management and use it as intended. But on a boot next day I've noticed a bit of a slow start, and on next and so on. Next was GPT header corruption before booting, after going to BIOS, it showed up on all drives, I didn't change anything as the boot drives were set correctly, and it then booted fine. Same issue on the next boot... I disconnected the drive I just purchased, and booted the system without it- one of my other drives disappeared now,

I have 2x NVMe drives, and 2x SATA (plus 3rd I just added), so had to have 4 drives, but only see 3x, it won't show up in BIOS either. I then plugged in the new drive back, now all 5 drives showed up in BIOS and in Windows. I ordered a backup drive and before it arrived, my PC was stuck on the post screen, I was able to go into BIOS and now I could only see the latest SATA drive I added- two other drives disappeared. I then disconnected a new drive again, started the PC again, went straight to BIOS, and can again only see one drive, which was previously missing when the new drive was attached, the other drive, which disappeared previously- is still not visible. A bit of a mystery to say the least.

I've Crystaldisk checked all drives when they showed first signs of issues- software didn't show me any issue.

My system configuration:

Asus Z690 Hero
12900k

Drives:
M.2_1 corsair MP600 1TB(windows partition)
M.2_2 corsair MP600 2TB

SATA6G_1 Samsung 870 QVO 4TB (the first drive that disappeared and now can't see it when the SATA3 drive is disconnected)
SATA6G_2 Samsung 850 PRO 1TB (only SATA drive visible in BIOS when disconnecting SATA3 drive)
SATA6G_3 Samsung 870 QVO 4TB (newly added drive after which all problems occurred)

Don't know what am I missing here? Used to add drives back and forth on every computer I had, back in the old days only thing I had to change was a jumper, but now? Which part is causing this issue? Clearly happened after I added a new drive, could it be because of the same make and model and capacity, I have two Corsair MP600 and never had issues with them on the previous system and on this.

P.S. I had this system and the original 4 disk setup since early December last year and didn't have a single error screen.

Any help or direction appreciated!

 

[Lutfij]

You forgot to mention the make and model of your PSU(and it's age). What BIOS version are you working with at the time of writing, for your motherboard?

 

[lightc]

You forgot to mention the make and model of your PSU(and it's age). What BIOS version are you working with at the time of writing, for your motherboard?

Oh, the PSU is:

Corsair RM850i, purchased Jan 2021.

BIOS version: 0702

Update:

So after a little tinkering and experimenting, I came to the conclusion that drive E is the one that's missing when connected from SATA. It even showed up once in Windows but it was inaccessible, Disk Management could see it, but wouldn't do anything. I then removed it and booted back, and Windows had drives C-D F - G, and when I connected the same SSD from the USB caddy, it was then placed in between as E (where it was before) and worked fine. Is there any explanation for this?