I’m being a total nerd and looking up the specs for the Phanteks 850W 80+ PSU and surprisingly the 5V rail only supplies 20A. I remember some people mentioned they ran out of headroom on the 5V rail but now I see why. This would power 22 drives max.
- Phanteks, 5V, 20A (22 drives)
- EVGA, 5V, 24A max. (26 drives)
- BeQuiet, 5V, 25A max. (27 drives)
It would appear that with ATX psu’s the biggest limiting factor is actually the 5V rail and not the overall wattage.
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