On Tue, Sep 8, 2015 at 9:12 PM, Robert Moskowitz <rgm@xxxxxxxxxxxxxxx> wrote: > First an admin of sorts note in that reply-list is not an option for this > list on my Thunderbird email. I seem to have to select reply-all then > remember to edit the reply list. > > > On 09/08/2015 03:56 PM, Peter Robinson wrote: >> >> On Tue, Sep 8, 2015 at 8:44 PM, Robert Moskowitz <rgm@xxxxxxxxxxxxxxx> >> wrote: >>> >>> >>> On 09/08/2015 03:38 PM, Gordan Bobic wrote: >>>> >>>> On 08/09/15 19:19, Robert Moskowitz wrote: >>>>> >>>>> I finally ordered and received a multiport sata card for use on my >>>>> cubietruck: >>>>> >>>>> >>>>> >>>>> http://www.ebay.com/itm/SATA-2-0-Port-Multiplier-Card-1-To-5-Port-SATA-Card-SATAII-Riser-card-/151747062952?hash=item2354d46ca8 >>>>> >>>>> >>>>> From past emails I learned this is supported, but now how to wire up >>>>> a >>>>> couple 2.5" (notebook) sata drives. The questions are: >>>>> >>>>> What is that white connector for? >>>> >>>> >>>> It's a power connector. You need to attach a floppy type power input to >>>> it. >>> >>> >>> Ah, yes, it IS the same connector. But is this in addition to or instead >>> of >>> the USB power connector? >>> >>>>> How can I power ths card so when the CT is off it is off? >>>> >>>> >>>> By powering both using a separate modified AT/ATX style PSU? >>> >>> >>> One option. >>> >>>>> And most importantly, how do I power the drives? The CT comes with a >>>>> single sata cable taking power for the drive from the board. Now I to >>>>> learn how to wire this all differently. >>>> >>>> >>>> Are you sure it provides power on eSATA? The vast majority of devices >>>> that >>>> provide eSATA capability don't supply +5V over eSATA (+12V is not in >>>> eSATA >>>> spec at all) and require a separate +5V to be supplied via, e.g. USB. >>> >>> >>> The CT has a special connnector that directly powers the eSATA. I have >>> one >>> in production working that way and another here on my test bench. No >>> problem powering a 1A 2.5" 1TB notebook drive. >> >> It isn't a eSATA connector, it's a plain vanilla internal SATA >> connector with a power supply connector with enough power to drive a >> 2.5 inch drive. > > > thank you for the clarification. > >>>> Either way, the port multiplier won't take power from eSATA, so you will >>>> need a separate PSU to provide power for the PMP and the disks at the >>>> very >>>> least. >>> >>> >>> It is definitely not wired to power them as the CT is. >> >> You need to power the SATA board and any extra disks separately from >> the Cubietruck, or if you must power everything from a single PSU >> you'll just need to ensure the PSU has a 5v supply to power the CT >> too. > > > I am going to need a wiring schematic for this :( > > I see the wires from the CT are R/B and Y/B. I have power for a sata/usb > adapter that has a separate power supply that taks a 'standard' HD power > connector and converts that to a sata power connector. So the first > question is how many Amps can the CT support for sata. Then how to do the > wiring. Those sort of details are very dependent on the PSU you've purchased and you're choice of other devices. It's pretty off topic for an ARM distro list. Peter _______________________________________________ arm mailing list arm@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/arm
