October 18, 20205 yr A few months ago, I purchased a supermicro server and it has been working fine since July. I did replace some of the CPUs and added some memory, but I haven't had an issue with it since yesterday. All of a sudden, I get an error on my cache drive's smart data so I run an extended test. It stopped showing the temperature of the drive and wouldn't 'spin up' to show the smart data so I assumed the drive failed. So, I remove the drive and shut the system down (I had just finished preclearing a new drive), and I try to restart it and I get the error that this is not a bootable disk, please insert a bootable floppy disk. I try replacing the USB drive with a sandisk one I had waiting for a USB failure, and that didn't work. I tried plugging the USB drive in all the ports, and that didn't work. I did run the Make_Bootable file as administrator. For sure, the USB drive is the top priority to boot because I disabled all other drives as bootable and even removed all my hard drives. I even tried doing a fresh install of Unraid on the flash drive, which still didn't boot. There was a point a couple weeks ago where I had a similar problem. This is when I added the cache drive to my array; it couldn't start up with the SSD plugged in. I just removed the SSD on startup and plugged it back in after Unraid started. Am I looking at a motherboard failure or something of the sort? If so, how is it I can still enter the BIOS if the motherboard is dead?
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