I purchased a SuperMicro 4U server off of Ebay back in September for use as my first Unraid server. I've been very happy with it and everything is pretty much running great. I absolutely LOVE Unraid. So much so I have 3 separate Unraid servers now running. The primary specs are
SuperMicro 4U CSE-846 - SuperChassis 846E1-R900B
System Board: X9DRi-F
Processors: DUAL INTEL XEON E5-2620 2.0GHz
System Memory: 60GB DDR-3 ECC REG
Backplane: BPN-SAS2-846EL1
Power Supply: 2x 1200W PWS-1K21P-1R (PDB-PT846-8824)
When I first got it, I was in a hurry to replace my existing server with it. I purchased 2 x 1TB Samsung 860 Evo SSDs to use for the cache drives. When I got ready to install them, I realized that despite having 4 Sata ports on the motherboard, I couldn't find any extra SATA power to use with them, so I gave up and used up 2 spots in my backplane. It's been working OK except I can't trim the SSDs, which I think is now giving me issues. Occasionally I'll Google around for a solution, but end up getting pulled away on other things.
As far as I can see, all my power for drives runs through the backplane. Where do I get power so I can use the on board SATA ports for my cache drives?
My fall back solution is to purchase 2 NVMe drives and some PCI cards, but I'd like to not have to spend money on more drives right now if I can avoid it.