![]() ![]() Plug power LED into header labeled "power" and the drive activity LED into the header labeled "activity".Ĭompatibility would be limited to SATA drives that use pin 11 as a drive activity indicator line. Newer drives tend to have speeds so fast that it's too hard to see the blinking (LED looks like it is solid on) and internal software that shows a graphical use of the drive is. Only places I see it are with custom caddy trays using older drives. Useage would be to plug the newly created "dongle" into the power connector of a SATA drive (or enclosure!), and plug the SATA power connector from your power supply into the dongle. Free Open Source Windows 2 alternatives to Activity Indicator A HDD and SSD virtual LED program which can stay on system tray and display disk activity. Even then, many server mainboards have scrapped using the indicator lights in use with SATA drives. Encapsule the whole thing in rubber and sell it for $5.00. ![]() Pin 11, one of the grounds (not tied to the others, from the drive plug end), +12v and +5v would be brought out to a set of 2-pin headers to allow a power LED and drive activity LED to be connected. All of the pins would be carried through, meaning pin 1 to pin 1 and so forth. What is needed is a small circuit board with a male SATA power plug on one end and a female SATA power socket on the other. Of course, there are current limiting resistors for the LED's. The drive activity LED is driven from wire #4 (+5v) to wire #2 (pin 11 of the power connector). It can be used to log the drives and supports indication of many drives by running multiple instances. It contains advanced logging capabilities and friendly interface. This alows an LED to be driven from wire #1 (+12v) to wire #3 (floating ground pin). The Activity Indicator utility is a simple program that indicates the HDD activity in the system tray. Status, Diagnostic Scan, Secure Erase, Firmware Update, TRIM Enable, Health Indicator. When the SATA drive is connected to the this "special" power converter, the floating ground is connected to all of the other grounds through the pins of the SATA drive. The useful features include: View Drive Information, View S.M.A.R.T. Note that pin 11 of the SATA power connector is supposed to be "reserved". My guess is that the drive has an open collector output that pulls a load to ground when active, and it is brought out to pin 11 of the power connector. After reverse engineering the "special" power converter that came with my new SATA tray, it seems like the four wires that come out of the back of the SATA power connector and would normally connect to a plug at the back of the SATA tray are:ģ) a ground pin of the sata power connector, *not* connected to all the other ground pins. ![]()
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