shansen008

I found this post while searching for a solution to my problem. Ive done plenty of reading on the 3.3v issue, but cant figure out why these drives wont work. I have a Chenbro SR30169 Mini ITX case with a 4 bay SAS12/SATA6 backplane. I replaced the PSU with a 550W Seasonic Focus gold semi modular. The backplane is powered by a pair of 4 pin molex connectors, NOT sata power. On the Drive side it supports both SATA and SAS drives. On the host side it is SATA3. All 4 SATA ports on my motherboard (Asrock x470 gaming ITX/ac w/R5 2400G) are connected to the backplane and my boot drive is NVME. When i power the system on, all the power LED's for the 4 hot swap bays are blue (receiving power) but no drive spins up and the post process takes like 5 minutes to get to boot windows. Im assuming this is after timing out waiting for the SAS drives. If i go into the BIOS (also after 5m of waiting), no drives are recognized by the SATA ports. My drives are HGST HUS726040AL5211, 4TB 128mb cache SAS12. Whats driving me crazy is two-fold. Being that im running off a backplane, i didnt think the 3.3v issue would apply. What makes it even worse is that my backplane is powered by 4 pin molex. I purchased these drives off of ebay used (supposedly decommissioned from a data center, so its possible i could have been scammed, but all 4 exhibiting the same problem? Drives were manufactured in 2015 and 2016, not even very old. I already checked to make sure it wasnt the backplane itself, i had a 3TB seagate SATA drive lying around and it works just fine. Any ideas before i go to plan B and just buy 4 SATA drives? I got a great deal on these since SAS is in less demand than SATA, so id love to be able to get them to work. -Thanks in advance. edit: Thinking of whether or not it would work to purchase a 9300-8i with a breakout cable to x4 sata to attach to the backplane. Im starting to think there is a language barrier type thing going on with Chenbros website. While it does say that SAS/SATA drives can be used in the backplane, and that the host side of the backplane is SATA, i imagine they could have simply been referring to the physical connector interface, since a SAS controller can still breakout to sata connectors. Maybe they never intended for the host side to be connected to a sata HBA, seems kind of silly though.