Topic: GekkoScience Compac BM1384 Stickminer Official Support Thread - page 52. (Read 268034 times)

If you put a little tiny heatsink on it or run it without a fan and the chip fries, that's on you. But if it developed a problem that was not a result of having a different heatsink, or the owner doing something stupid, yeah it's probably covered.

so you can mod the heatsink just have to be careful and not mess it up correct ? but if somebody changed the heatsink and put a new one on and something else happened not related to the heatsink then it would be covered ?

If you mod the heatsink and break it, repairing that break is not under warranty. Like the guy who bunged the 0.9V LDO when he put a big heatsink on it; he paid for the repair and shipping.

you should get if your power supply for the hub can supply the 900 it should get it on each port

as for the heatsink's if i remember right if you mod the heatsink it voids warrenty... but that would be something to ask sidehack about

So I will get 900mA is what you say?

Another question: is there a possibility to mount the heatsink to the inside of a metal PC case for better dissipation?

yes it will it uses the power from the hub not threw the computer...
the data is passed to the computer

the hub gets it power from the outlet at least that is how all the hubs ive seen used works

Just one USB 3.0 HUB question. Ports can deliver more power (900mA)

But what if I connect a 3.0 USB hub to a GA-DA525 mini-itx motherboard that only has USB 2.0.

Will the USB 3.0 ports from the be able to deliver the higher 900mA current (instead of 500mA) ?

So still looking for a hub...

What is the highest frequency that i can run these sticks at 24/7 without using a fan?

Since there isnt a temperature sensor on chip, any pointers on "safe" heatsink temperature range? Thanks.

Check the voltage on the reset testpad. There's a resistor and capacitor in the right corner immediately below the heatsink, make sure they're intact.

Download this and install the driver  

http://zadig.akeo.ie

Or even better would be to run Bfgminer on a Mac and not deal with the WIndows crap

Hello! I received my 4 units today from the latest batch and just got set up following the gekkoscience.com/misc/cgminer-gekko-win32.zip provided in the OP. Settings are just running at the default 150MHz clockspeed and balancing between two pools. 

I'm running into an issue where one of the Compacs simply refuses to start mining- the green light comes on, I'm able to see it in Windows Device Manager and install the drivers using the zadig tool, but that's it. I've tried connecting via USB ports directly on three different machines (Win10, Windows Server 2012 R2, Raspberry Pi B with Minera + Compac mod) and two different powered USB 2.0 hubs with no luck. The other three Compac units work fine with any combination of machines/hubs, so I am thinking it may be something with this one Compac unit.

I noticed that the white light also doesn't come on with this unit anymore, although I'm pretty sure it did the first one or two times when I first plugged it in.

I have one of those USB Charger Doctor gadgets (in-line voltage and current meter), and I notice on the stubborn Compac that it reads 5.04-5.05V/0.06A upon being plugged in and idle/not mining. The other units that are working fine read 4.96-4.99V/0.19-0.22A when plugged in and are idle/not mining.

This is as far as I can get in cgminer:


Any suggestions?

Since the TDP on these things is so low, why not put the stick in your freezer? Would'nt it work? If so i dont see why the stick could not run stable super overvolted indefinitively if the temps are kept low?

yes, might be some modification, say, 8-12 hr continuous run and average speed reporting as a mark.
Somebody (AJRGale?) already reported some extreme readings for a few minutes.
I tried it before...compac gets tired of abuse after ~12 hr, but it could take it (to a degree) definitely longer than 10 min.

EDIT: OR, we can split the competition into two parts: sprint (10 min) and 5000 meters (>8hr, <12hr)

Started a thread here about the contest.  Do not want to divert the purpose of this thread-

https://bitcointalk.org/index.php?topic=1373812.new#new

Lets take inputs and ideas for the contest for 24 Hours and then set then start time.

Rich

Let's shoot for Friday, I think that would be plenty of time to get ready.  

I think the contest should run 24 hours but the actual runtime needs to be limited to say 5-10 minutes.  Hard to do a 24 hour run with extreme cooling

So how about a Week to get ready. Single Compac / entrant, no holds barred on PSU, Heatsink Fans etc. Picture of Miner to be posted in this thread.

Mine to the old address so that Phil get's the benefit of the Blocks we hit  

24 Hour Run, Highest total Hash is the Winner.


Rich

i want to see a liquid nitrogen cooled stick i bet you somebody could overclock the hell out of that like some pc people can

Wasn't there going to be a no-holds-barred over clock contest?  The first OC contest was fun, I'd participate in one of those again.  I don't have the know-how to compete in an "ultimate" OC contest, but I'd like to see what other people can do!

Sounds like a challenge.    What are the rules?


Rich