Littleolme Posted July 25, 2023 Share Posted July 25, 2023 (edited) I apologize for what is surely a stupid question. I'm building a new server, transferring my SAS drives out of an extremely noisy rackmount with a hard backplane for the drives, to a much quieter desktop. I have a LSI 9305-16I picked out and four SFF-8643 Host to 4 SAS 29Pin cables. What provides the power for the drives? Is the HBA powering the drives (and is that why it gets hot)? Or do I need a special power cable for each of the drives? I didn't think the PCIE slot could provide enough power for 16 drives. It looks like the 19 pin connector is meant to have a power cable attached, but I can't find one to order. edit: Does the sata power cable connect to the 19 pin connector to provide power? This is the connector I'm looking at using. Edited July 25, 2023 by Littleolme Continuing my searching. Quote Link to comment
AaronB. Posted July 25, 2023 Share Posted July 25, 2023 The backplane will power the drivers. On the back there should be a 4 pin molex connector. If there isnt look up the user manual and it should tell you what kind of adapter you would need to power it Quote Link to comment
Littleolme Posted July 25, 2023 Author Share Posted July 25, 2023 12 minutes ago, AaronB. said: The backplane will power the drivers. On the back there should be a 4 pin molex connector. If there isnt look up the user manual and it should tell you what kind of adapter you would need to power it I'm not using a backplane in the new case. That's what I'm moving away from. So the drives will be connecting directly to the HBA...and power supply via SATA power? Quote Link to comment
Vr2Io Posted July 26, 2023 Share Posted July 26, 2023 (edited) 23 hours ago, Littleolme said: edit: Does the sata power cable connect to the 19 pin connector to provide power? This is the connector I'm looking at using. The link can't open, btw you can powerup by SATA or molex power plug will correct adapter. But SFF8643 (LSI 9305-16I) quite expensive then SFF8087. Edited July 26, 2023 by Vr2Io Quote Link to comment
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