Topic: GekkoScience Compac BM1384 Stickminer Official Support Thread - page 65. (Read 268042 times)
January 13, 2016, 07:28:34 AM
Thanks both. Drew_ii recommended to plug the 3.0 into a 2.0 hub first then to the Pi so will do that.
January 13, 2016, 02:37:40 AM
i know my usb3 hub would not work on my pi b+ 512mb without using a non powered crappy hub and now my hub works
January 13, 2016, 02:35:29 AM
Is 900ma enough for 15GH?
So just get a decent USB 3.0 powered hub?
Should work with an original Pi B right?
So just get a decent USB 3.0 powered hub?
Should work with an original Pi B right?
I'm pretty sure that all RasPi models do not play well with USB3 hubs. I do know that the Cubieboards (v1, v2, and v3/'truck) do work with USB3 hubs, however. ymmv.
January 12, 2016, 01:55:14 PM
That's the one I use:
http://www.ebay.fr/itm/221661361513?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
So you just plug the existing usb cord coming up from the power usb hub, to the Female end and the male ends into the computer?http://www.ebay.fr/itm/221661361513?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
No
Female part of the y cord gets the stick.
The two male ends plug into the hub.
That's right, but i did not find 1F<-2M usb 3.0 cable available in US (just those on a slow delivery from China), so I just ordered 1M<-2M cable and a coupler (F-F).
http://www.ebay.com/itm/351486414615 <-look at this cable. 3A carrying capacity!
http://www.ebay.com/itm/321726944146 <- this one is a pack of 3
These came quickly and they work neato: up to 24Gh/s (more like 22Gh/s in steady state) using 10 slot powered Anker usb 3.0 off of a linux computer (this hub does not work on pi, unfortunately).
January 12, 2016, 11:43:10 AM
I might be around in the afternoon. Probably should be discussed in a PM though.
January 12, 2016, 11:41:53 AM
hey sidehack what are you doing saturday i would like to bring that s1 out and now for some reason my s2 has just a red light and fans on full... then wanted to see if theres something we can do on my compac sticks maybe mod the usb hub i have
January 12, 2016, 10:26:58 AM
I've seen 300M+ on a test stick. Someone I think reported a 1B share, probably out of the compac solo group.
300MHz yields 16.5GH and I mark it at about 6.7W for stable operation, which depending on your voltage is 1.3-1.4 amps.
300MHz yields 16.5GH and I mark it at about 6.7W for stable operation, which depending on your voltage is 1.3-1.4 amps.
January 12, 2016, 10:24:33 AM
Anyone tracking highest share completed by a COMPAC? Is 22.5M anywhere on the list?
http://s1.postimg.org/gp914d4q7/IMG_1624.jpg
(ok so that embed didn't wotk - suggestions?)
http://s1.postimg.org/gp914d4q7/IMG_1624.jpg
(ok so that embed didn't wotk - suggestions?)
January 12, 2016, 09:15:24 AM
That's the one I use:
http://www.ebay.fr/itm/221661361513?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
So you just plug the existing usb cord coming up from the power usb hub, to the Female end and the male ends into the computer?http://www.ebay.fr/itm/221661361513?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
No
Female part of the y cord gets the stick.
The two male ends plug into the hub.
January 12, 2016, 09:06:13 AM
So you just plug the existing usb cord coming up from the power usb hub, to the Female end and the male ends into the computer?
January 12, 2016, 06:35:21 AM
Is 900ma enough for 15GH?
So just get a decent USB 3.0 powered hub?
Should work with an original Pi B right?
So just get a decent USB 3.0 powered hub?
Should work with an original Pi B right?
Negative for the PI Zero, but I just got a 2B so I can try that, but I'd wager not on a flat B either. This link is all about how 3.0 doesn't work, and some complain 2.0 doesn't work properly either (but it works fine for our interests):
https://www.raspberrypi.org/forums/viewtopic.php?t=74695&p=535407.
For a Zero you have to cascade the 3.0 through a 2.0 to the PI, so the PI only sees the 2 and the 2 downgrades the capability of the 3 from 3 speeds to 2 speeds - so while 3 gives you the ma you need to power the sticks up without Y's, the 2 makes it so the PI can talk to the sticks. I don't think that the USB bandwidth downgrade makes much difference as the data is pretty small all in all - you're just looking for the power.
Oh, and the Anker 70w won't work - Look for the Superbpag if possible. Anker by itself, through a powered 2.0, or through an unpowered 2.0 just doesn't work. Anker is aware of it and says there's no resolution, so I had to get a refund.
Superbpag here (they were low on stock before but seem to be full up again)
http://www.amazon.com/Superbpag-Portable-Charger-Transfer-Samsung/dp/B013OK10YM/ref=sr_1_2?ie=UTF8&qid=1452598444&sr=8-2&keywords=superbpag
January 12, 2016, 06:22:57 AM
Is 900ma enough for 15GH?
So just get a decent USB 3.0 powered hub?
Should work with an original Pi B right?
So just get a decent USB 3.0 powered hub?
Should work with an original Pi B right?
January 12, 2016, 06:14:46 AM
500mA is the USB2 norm
900ma is the USB3 norm
Not all switch strictly enforce it
900ma is the USB3 norm
Not all switch strictly enforce it
January 12, 2016, 05:57:53 AM
Read though a few of these threads but can't find a clear answer.
What's the best way to power 4 of these at around 15GH each? From what I understand I need a hub that can output more than 500ma? If so how much more?
Are there any cheaper decent hubs available or can I just use a Y cable and a bog standard hub?
What's the best way to power 4 of these at around 15GH each? From what I understand I need a hub that can output more than 500ma? If so how much more?
Are there any cheaper decent hubs available or can I just use a Y cable and a bog standard hub?
January 12, 2016, 02:25:57 AM
January 11, 2016, 07:28:21 PM
Oh by the way, second run sales queue is now open.
January 11, 2016, 04:46:55 PM
Well, 5 on a hub may work, but I think Y cables are a must if ports are strictly limited to 500/900mA.
Unless he has a fancy hub that just doesn't care in this case, maybe the power supply is undersized.
I run 3@330Mhs on a 7 ports USB3 hub with Y cables.
The hub has a 12V-2.4A PS.
Could you link me to a reliable Y cable please?Unless he has a fancy hub that just doesn't care in this case, maybe the power supply is undersized.
I run 3@330Mhs on a 7 ports USB3 hub with Y cables.
The hub has a 12V-2.4A PS.
Thanks zou!
January 10, 2016, 05:24:57 PM
To some extent it probably depends on the OS process scheduler, USB interface interrupt handling, capability of the CPU itself and some other stuff. I've seen cgminer on some embedded systems peg the processor by itself.
January 10, 2016, 03:53:13 PM
Is it normal for a program requiring processor time to slow down operation when a different program has the processor pegged? That sounds about right.
Cgminer is only running about .2% CPU utilization on average one core. When fully maxed out not only do I see degradation in hashing but also increase in Zombies and cgminer going not responding. I understand there could be an impact but I did not expect to see so much. I was just asking if others were seeing the same.
January 10, 2016, 03:22:24 PM
My 3 computers supporting asics always have their CPU @ 100% use all time.
(they're running Boinc)
I've not noticed any impact on hashing, but it's an interesting point, I will check in the morning
(they're running Boinc)
I've not noticed any impact on hashing, but it's an interesting point, I will check in the morning
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