The good risers - no problems --- the bad ones - a lot of problems.

The bad ones, I need to replace them with better risers or offload to riserless mobos.
The bad ones..... about 1.5 years old risers running 24x7x365.
Rule of thumb - 1 SATA cable powers 2 risers safely (3 is a stretch, 4 --- you asking for trouble)... each riser eats up to 60watts. No way 1 sata cable can support 60w x 4 = 240w.... it would melt!
Hello citronick.
What sort of problems are you having with risers?
100% of my cards are using them. All of them are gtx1060s. Operating for 2 months already with no issues from risers.
following issues:
#1) connected 4 risers to 1 sata cable resulting in the connector at the modular end of the PSU melting (just me being stupid: not reading enough)
#2) one of the gtx 1060 3gb cards stopped working, upon inspection, artifacts appeared when its stress tested. replaced by store warranty.
other than that no issues on risers