NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
Harddisk with Power Disable Pin (HGST)
Hi, In this page, for part selector of HGST disks: https://www.hgst.com/products/hard-drives/ultrastar-he12 They talk about SATA 3.3 specifications and the new "Power Disable Pin" feature If n...
We didn't use Pin 3 on the connector of backplane (No Connection) on all desktop models.
Since Pin 3 is no connection, that is this pin is floating, no guarantee the power level.
If you use the HDD with PWDIS, it may or maynot spin up.
Highly recommand to use the HDD which is not support PWDIS feature.
Frank888, do you have access to a SATA 3.3 spec? Every article I see says that all that is necessary is that pin 3 not be connected to anything above 2.1V unless it's the actual PWDIS discrete. The implication is there is a pull-down on the signal, so floating the other side is just fine. In fact, HGST and others recommend just using a MOLEX 4-pin to SATA power adapter since the MOLEX has only +5 and +12V, leaving pins 1-3 floating. Personally, I'd just cut the 3.3V wire where it's possible (which should be all cases where the MOLEX adapter is also an option)..
But while it's still an option, just getting the drive version without that feature is the best move.
- It seems all 12 tb from hgst have the feature
https://www.hgst.com/products/hard-drives/ultrastar-he12
If you read from the P/N selector carefully, the upper half parts are HDD without this feature, the lower half parts are HDD with PWDIS feature.
- You're right. I did not notice that part numbers are different for the same model numbers
NETGEAR Academy
Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!
