Hi, i have a power management issue with my SAS controller. Intel SASUC8I, aka LSI SAS1068R doesn't support hard drive spindown inWindows (when used as a simple HBA without any RAID setup). This means that 8 of my 10 hard drives run without any standby all the time, 24/7. With Linux, there was no such problem - but on Windows this is a huge problem. To be more exact - when i try to issue the standby command on ICH10R controller, all goes well : But with hard drives connected to SASUC8I, i get : In Intel RAID Web Console, i can see that the "Unconfigured good spin down" is set to Disabled (Unconfigured Good = non-RAID and non-spare hard drive connected to the controller), and there is no option to change it. Unfortunately, i'm forced to use Windows, so switching to Linux is not an option. The question - are there any SATA/SAS controllers with 8 hard drive connectors (or 2 mSAS, which is the same as 8 SATA), for PCI-E interface, with support for hard drive standby feature and/or the HDIO_DRIVE_CMD(standby) command ? The system uses about 90W now, and according to my previous knowledge, spinning down 8 hard drives would easily bring me ~15W idle power reduction. Any suggestions ?