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Topic: GekkoScience Compac BM1384 Stickminer Official Support Thread - page 96. (Read 268015 times)

legendary
Activity: 3892
Merit: 4331
Ok, finishing up preparations for running sticks...
i want to try both pi and pc/linux or debian to run those.
Q:
I am thinking about getting a cheap XP laptop, then install Linux and/or Debian.
The specific question would be: is it possible to partition the initial XP drive and install Linux on one half and Debian on another OR is it better to keep XP and simply run linux/debian off the stick or CD without installing on the hard drive, ALL in order to run miners off a hub and nothing else?

If anybody comments, i would appreciate it.
My interest here would be to learn linux/debian a little while "playing" with sticks.
thanks
legendary
Activity: 2746
Merit: 1181
You mean a picture like the one in the first post ?  Roll Eyes



No that exactly NOT the picture I am looking for. Do you think I might be blind and missed that lol


I am looking for a detailed pic with locations of the potentiometer with each range more or less. Like 90 degrees right is "X" value

90 degrees left is "X" value and so on.

Something like that would be very useful while attempting to narrow in on a specific voltage range.

Thanks!
legendary
Activity: 3374
Merit: 1859
Curmudgeonly hardware guy
No. Pretty sure you'd need QFN56 since it's not a 7x7mm package. Also I'm working on one of these. Since a BM1384 test machine development is not pertinent to the technical support of a Compac stick miner, I would appreciate no further discussion of the subject in this thread and maybe use the BM1384 development thread where, a few pages back, I gave a paragraph explaining the thing.
newbie
Activity: 22
Merit: 0
sr. member
Activity: 331
Merit: 250
I'm gonna go ahead and advise the same thing I advised last week, which is the quote from the first post which states that if you have trouble the first thing you should try is turning up the voltage. The flat part in the upper right corner still puts it at pretty much dead bottom voltage. If it's one of my sticks, it left here set for about 640mV (flat in the bottom right corner) and was tested to work without error at 200MHz/11GH.

So what you do is, you turn the screw up a bit and fire it up and see if it works better. If not, turn it up a bit more and repeat. Just like the advice in the first post. I specifically sent you to read through this thread for solutions to your problem since a lot of what you need is probably in the first post.

Additionally,

None of my sticks are tested to work on anything USB3, and I don't know anyone else's opinions but I've never recommended their use on a USB3 hub either, reason being they're not USB3 devices and were never tested for compatibility.

Thanks, I will try to adjust the settings more on the physical USB.

It would be great if someone can post a picture of where the actual voltage settings would range on the USB Miner from low end to max, like "this position is "x" voltage".

I think that would be extremely helpful for some.

thanks!

Easiest way would be to use 1 of these:

http://www.amazon.com/gp/product/B00J3JSEG6?keywords=drok%20usb&qid=1447593939&ref_=sr_1_1&sr=8-1

However you can also just start cgminer with no sticks plugged in hub, plug 1 stick in, then turn the pot (in small increments) till it starts mining. Then adjust it some more to get rid of HW errors. Start on the end that will leave the pot in the open until the next stick is plugged in.

Plug the next stick in and adjust it, repeat, until you get all sticks plugged in and running.

Then again, I just looked at some of the 1 star reviews of the Anker 3.0 hub (that you linked to in a previous post) and I wouldn't buy one. More than a few die after a few months, some will only get 2 or 3 ports working, some will constantly drop connections, some over heat, and some only get 2.0 speed or lower (even if everything is 3.0).

Even seen some review's of another model of Anker 3.0 hub, that some programs would not run, if the hub was plugged in before opening the program (had to open the program and then plug the hub in). So seem's that the Anker 3.0 hub's are not as good as the 2.0 hub's were in the past.
zOU
hero member
Activity: 728
Merit: 500
★ these are stars ★
You mean a picture like the one in the first post ?  Roll Eyes

legendary
Activity: 2746
Merit: 1181
I'm gonna go ahead and advise the same thing I advised last week, which is the quote from the first post which states that if you have trouble the first thing you should try is turning up the voltage. The flat part in the upper right corner still puts it at pretty much dead bottom voltage. If it's one of my sticks, it left here set for about 640mV (flat in the bottom right corner) and was tested to work without error at 200MHz/11GH.

So what you do is, you turn the screw up a bit and fire it up and see if it works better. If not, turn it up a bit more and repeat. Just like the advice in the first post. I specifically sent you to read through this thread for solutions to your problem since a lot of what you need is probably in the first post.

Additionally,

None of my sticks are tested to work on anything USB3, and I don't know anyone else's opinions but I've never recommended their use on a USB3 hub either, reason being they're not USB3 devices and were never tested for compatibility.

Thanks, I will try to adjust the settings more on the physical USB.

It would be great if someone can post a picture of where the actual voltage settings would range on the USB Miner from low end to max, like "this position is "x" voltage".

I think that would be extremely helpful for some.

thanks!
zOU
hero member
Activity: 728
Merit: 500
★ these are stars ★
Well I made a few futile attempts to get them to work on a Orico A3H10 hub, not to avail.

Wether directly on a old lenovo laptop or with the hub connected to a usb2 hub: no chance.

I'll do more tests tomorrow or later during the week.

If anyone has them on this Usb3 hub, i'm interested....

Update:

I've connected the Orico A3h10 USB3 10ports Hub to a gibagyte brix which has USB3 ports.

All 6 compac sticks are detected and running fine at stock 150Mhs




According to my calculations yesterday evening (so they may be horribly wrong) I will try to push them a bit

Quote
USB2 is 5v and 500mA =2.5W
USB3 is 5V and 900mA = 4.5W

Stick is 0.8V to the BM1384 chip, but still 5V to the stick...
1st post says that 137-150Mhs would use the 2.5W at 0.5V to the BM1384 chip.

Now if I want to run 6@150Mhs, that's 15W, so a 5V/3A I just enough.
But my USB3 hub is 12V/3A so 36W, so 6W per stick, but that's exceeds the port W.

However I could run 36W/4.5W = 8 sticks and reaching the USB3 max W per port.
If I want to populate all 10 slots, then the power supply is the limit:

36W = 3.6W/port = 216Mhs per stick

Assuming (bad habit) a linear ratio Mhs/W, I could reach 360Mhs for 6W. (my hub PS = 36W, I have 6 sticks, so 6W/stick available)
270Mhs is (I think) the Max achievable on stock USB3 for 4.5W.
If I want to push the sticks higher than 270Mhs, I need to use 2 hubs and a Y cable

I'm not even sure the above makes sense anyway ...
legendary
Activity: 1302
Merit: 1068
Hmm, i run mine on USB 3.0 hub just fine, its a 10 port teknek, i would guess there's some sort of power limitation if you get less speed when you have several, they probably get less power.

But i run only one, with a Y splitter cable. Does 12.2GH/s at 225hz.
legendary
Activity: 3374
Merit: 1859
Curmudgeonly hardware guy
I'm gonna go ahead and advise the same thing I advised last week, which is the quote from the first post which states that if you have trouble the first thing you should try is turning up the voltage. The flat part in the upper right corner still puts it at pretty much dead bottom voltage. If it's one of my sticks, it left here set for about 640mV (flat in the bottom right corner) and was tested to work without error at 200MHz/11GH.

So what you do is, you turn the screw up a bit and fire it up and see if it works better. If not, turn it up a bit more and repeat. Just like the advice in the first post. I specifically sent you to read through this thread for solutions to your problem since a lot of what you need is probably in the first post.

Additionally,

None of my sticks are tested to work on anything USB3, and I don't know anyone else's opinions but I've never recommended their use on a USB3 hub either, reason being they're not USB3 devices and were never tested for compatibility.
legendary
Activity: 2746
Merit: 1181
Still have nice looking green machines not working at all for me.

Tried cgminer, bfgminer,and more, ---- usb 3.0 Anker 10 port hub.

Used multiminer software and was able to run all 5 in that hub but only at 3.5GH/s each or so. It looked as if it used an older version of bfgminer in that program

I have each "flat" part of the potentiometer set at top right corner on all of them.

Ive tried 50 configs for bat files, and once saw all 5 running at over 8GH/s each for about 10 seconds in bfgminer ...before all the comms errors, or in cgminer the "L" type errors.

People are saying its my hardware, but I have run successfully 9 usb miner sticks in  there plenty of times and most recently the bitmain U2 usb miners....so? i cant figure it out.

Maybe ill try again soon. Sad
legendary
Activity: 1274
Merit: 1000
...
Thank you for taking the time to respond.
So directly plugged on mobo.

Usb3 to get to 0.8 or really good USB2 ?

Real GOOD USB 2.0, i'm currently using some IBM and Dell mobos, and the one that is a "generic" is an Asus. They're built like tanks and the port runs flawlessly for weeks.


I use this one i bought  a while back off new egg got a nice deal on had no use for it till now . I have it plugged into a 240 line with no issue at all once i figure out how to power it up and what PSU, i needed for a 220/240 line, it works on a 110/120 line in US as well. The reviews on new egg are on the money, which you don't find to often for a product .


http://www.newegg.com/Product/Product.aspx?Item=N82E16817707235
legendary
Activity: 3374
Merit: 1859
Curmudgeonly hardware guy
If I wanted to push them to their limits I'd crank them to 800mV and 425MHz and use whatever software I wanted. My job is to make sure it works. Catching it on fire is up to the customer.
legendary
Activity: 2576
Merit: 1186
All the GekkoScience sticks are also flashed and burned in on a standard USB2 hub, 200MHz via cgminer-gekko on a Debian 7 system.
You should probably consider doing burnin with BFGMiner's --benchmark-intense option which is designed to push miners to their limits (unlike the real Bitcoin network).
legendary
Activity: 3892
Merit: 4331
I need hubs anyway, so I saw that jake36 used Superbpag (USB3) for sticks AND pi and ordered it in addition to Anker 10port usb3 hub, which i will probably simply return (amazon did not cancel in time).

The main reason is that superbpag is powered up to 14A.
http://www.amazon.com/Superbpag-Portable-Charger-Transfer-Samsung/dp/B013OK10YM
Most of USB2 powered sticks are 2.5-3A, apart from that 49 port "yellow submarine" (Eyeboot):
http://www.amazon.com/Eyeboot-Port-USB-110v-220v/dp/B00JCA4ARS
zOU
hero member
Activity: 728
Merit: 500
★ these are stars ★
I'll have a look there:

https://bitcointalksearch.org/topic/modifying-a-usb-hub-for-extra-power-and-i-did-it-showoff-thread-1152953

And there:

https://bitcointalksearch.org/topic/powering-10-port-usb-newb-style-801230

==============
In fact I jus realised where I went wrong in my electricity calculations.

USB2 is 5v and 500mA =2.5W
USB3 is 5V and 900mA = 4.5W

Stick is 0.8V to the BM1384 chip, but still 5V to the stick...
1st post says that 137-150Mhs would use the 2.5W at 0.5V to the BM1384 chip.

Now if I want to run 6@150Mhs, that's 15W, so a 5V/3A I just enough.
But my USB3 hub is 12V/3A so 36W, so 6W per stick, bu that's exceeds the port W.
So in that case, the Y cable is required.


Assuming (bad habit) a linear ratio Mhs/W, I could reach 360Mhs for 6W.
270Mhs is (I think) the Max achievable on stock USB3 for 4.5W.
legendary
Activity: 3374
Merit: 1859
Curmudgeonly hardware guy
Have you looked up AJRGale's hub modification thread? We used to test 8 sticks at a time on one of those $9 cheapo hubs from eBay that I spent half an hour beefing the 5V lines on and hooked it up to a molex for 5V. Novak had five sticks running 300MHz off it for over a week once, probably over 1.5A per port. I'll be honest, I don't pay much attention to what stuff is rated for because I just build it to do what I want it to do instead. It's usually cheaper and oftentimes better.
zOU
hero member
Activity: 728
Merit: 500
★ these are stars ★
All the GekkoScience sticks are also flashed and burned in on a standard USB2 hub, 200MHz via cgminer-gekko on a Debian 7 system. I just replaced the crappy test hub (it was getting pretty tired after running 600 sticks through it about 8 at a time, among other abuses) with an EyeBoot 49er for the last day's worth of tests. None of my sticks are tested to work on anything USB3, and I don't know anyone else's opinions but I've never recommended their use on a USB3 hub either, reason being they're not USB3 devices and were never tested for compatibility.

Fair enough.

I wanted to use a USB3 hub as they can deliver 900mA/port so I would have avoided getting the USB Y cables to get over the 500mA/port limit of USB2.

Unless I'm completely wrong about the above of course.

About compatibility, USB3 is supposed to be backward compatible so I didn't even think that could be an issue.

I'll have to find the formula and recalculate how many sticks my different hubs can support.

Mine is this one

http://www.amazon.com/Super-Speed-Switch-Aluminum-ORICO/dp/B00CN40X12

Thank you Hedgy.

Anyway, I want want neat and clean miner setup, so I'll figure out something.
legendary
Activity: 1414
Merit: 1077
I've been running 2 sticks on a USB 3.0 Anker 60w 7 port hub 24/7 for 5 days now @ 300MHz. I'll be adding another 3 sticks when they arrive Smiley.



Hub is this one: http://www.amazon.co.uk/Anker%C2%AE-PowerIQ-Charging-Samsung-Motorola/dp/B00VE4UJD4/ref=sr_1_1?ie=UTF8&qid=1447531243&sr=8-1&keywords=anker+60w+7+port+hub
legendary
Activity: 3374
Merit: 1859
Curmudgeonly hardware guy
All the GekkoScience sticks are also flashed and burned in on a standard USB2 hub, 200MHz via cgminer-gekko on a Debian 7 system. I just replaced the crappy test hub (it was getting pretty tired after running 600 sticks through it about 8 at a time, among other abuses) with an EyeBoot 49er for the last day's worth of tests. None of my sticks are tested to work on anything USB3, and I don't know anyone else's opinions but I've never recommended their use on a USB3 hub either, reason being they're not USB3 devices and were never tested for compatibility.
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