I have an old Optiplex 7020 SFF.

Recently I added a 450 GB SSD by using Optic Drive Caddy, so I took out Optic Drive and used SATA Connectores to add SSD.

In general my storage looks like this:

one 254 gb system SSD - Hard Drive 0

one 450 gb SSD - Hard Drive 2

and 1TB HDD - Hard Drive 3.

I was doing my business as usuall, when my pc suddenly shut off and I got this message:

"self monitoring system has reported that a parameter has exceeded its normal operating range"

It said that I can press F12 to run the diagnostics, I ran the diagnostics and it showed me this message:

Hard Drive 0 - S/N 10282221E0334, Incorrect status = 3E

SMART Predictive Failure.

Error Code: 2000-0151

I checked the S/N Number and it corresponds with Hard Drive 0, my boot SSD, not the one I added recently but the one what was working fine since the beginning. I installed HDTune and CrystalDynamics, and both softwares show that health of my SSDs and HDD are fine. Boot SSD, the one that is "failing" shows 98% health and all indicators on CrystalDynamics are OK. I also ran a test on HDTune of particularly "failing" SSD and it went OK.

I went into BIOS and changed the boot orderd of the drives and error stopped showing on boot.

After not understading what is going on, I installed "Dell Support Assist" and "Inter Driver & Support Assist". Both showed that I needed an update toward "Intel Rapid Storage Technology Driver". I instlled that update, and changed boot order back to normal.

After restarting PC two times error not showing up anymore.

The question is, is my SSD failing or about to fail, or it was an driver issue?