Topic: Blue Fury Support Thread. - page 7. (Read 89623 times)

Have you tried the reset button?

Sure. Although i would recommend if someone has a faulty unit that is unmodified for them to contact us about getting a replacement. Once units have been modded we can't offer replacements.

Hey Beastlymac,

Is it okay if I offer people repairs to their USB miners that have faulty LED lights and bad resistors?

https://bitcointalksearch.org/topic/dead-redfury-repair-service-in-los-angeles-ca-364290

Ok I have 3 blue fury's..

They where working fine but all of a sudden 2 have stopped working

Both of them have orange lights and are not recognised by windows.

I have tried rebooting and tried them in different ports but nothing.

I even removed the. Driver but nothing.

Any ideas?

thanks a mil for the detailed reply! ill be sure to check this before buying a replacement

https://bitcointalksearch.org/topic/m.2700634
[/quote]

thanks! will grab one of them

Because I'm no electrician, I have to ask at that point :

Is it of any advantage (does it work in the 1st place) to replace i.e. a 5V Power Supply with i.e. a generic (switchable) one and give it 6V ?
Provided it has the Amps, that's basically overvolting the Hub a little bit. I do own some of those old "universal DC adapters" that let me go 1.5V/3V/6V/12V with a switch.
(the only reason I haven't tested it yet on 6V is that polarity is also a manual selection and the Symbology standard printed on the default USB Power Supply apparently changed sometime, didn't get smart out of it so far and need to carefully verify that; certainly don't want to mess that one up :p )

My idea is, that the USB ASICs then could have a bit more power available which (from my understanding) doesn't hurt them and should increase their hashrate towards their rated specs (mine run the typical ~2.1 Gh/s vs. the advertised "upto" 2.6 Gh/s, which I credit to the USB 2.0 Hub keeping its power output strictly to USB specs)

Workable idea or a good way to kill the Hub/ASICs ? I wouldn't mind "sacrificing" a Hub in the name of science *g* but don't want to bury a miner of course.

all usb hubs put out 5 volts  the usb port, but they have different input power bricks.. if the hub has a 5 volt brick there is no dc to dc converter in it. if a HUB has a 12 volt brick there is a 12 volt to 5 volt dc to dc converter in it.   general rules of thumb a 12 volt brick when converted to 5 volts keeps 80 percent of the power.  so 12 volt  x 5 amp = 60 watts x 80 percent or  48 watts.   safe 24/7/365 run is at 80 percent so 80 percent time 48 = 38.4 watts to 3.84 watts for 1 of 10 ports.

a 5 volt hub is 5 volts x ? amps .. I have a few that are 4 amps so 5 x 4 = 20 watts  at  24/7/365 x 80 percent = 16 watts   so if this is for a 7 port hub it is a no go  as 16 /7 = 2.2 watts a port which is not enough.

I am assuimng the bricks run to their ratings.  most don't

never never never stick a 12 volt hub brick into a 5 volt  hub ..  you will fry the hub and the sticks/  been there  done that.

here is a 7 port hub with a 5 volt 4 amp brick  it runs 3 or 4 sticks:

http://www.amazon.com/GearMo%C2%AE-3DH-USB-3-0-7-Port/dp/B00BZABE72/ref=sr_1_3?ie=UTF8&qid=1386466199&sr=8-3&keywords=gearmo+7+port


here is a 10 port hub with a 12 volt 4 amp hub


 http://www.gearmo.com/shop/10-port-usb-3-hub-gm-3dh10/ 

 this runs around 6 sticks.   if you take this hubs brick and stick it in the 7 port hub from the same company you will burn up the 7 port hub.

I had hundreds of am sticks and around 20 -25 hubs   I learned one lesson don't mix hubs   make sure every one is a 5 volt power brick or a 12 volt power brick.. this way you can't burn the gear up

That's confusing because USB 3 hubs are 12 volts I thought.

Would be the Amps that determine how many you can run.

https://bitcointalksearch.org/topic/m.2700634

thanks for the replies, its a usb3 hub:
http://www.ebay.ie/itm/131040267176?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
but i think others say usb3 is ok for them...
power on it says 5vdc which should be right for 2 sticks..?

do you recall which thread the list of good and bad hubs are listed, cant find it:/ think i need to make new purchase.
thanks!

I certainly would if their shop accepted some sort of Cash Transfer :/

Then try the brand new TwinFury!

Thanks, so I'm basically looking good with my setup

Now I only wish I could find some more of these or similar devices for a reasonable price in Germany. It's literally insane what even small 330MH/s Block Erupters are selling for over here...

its not true HW errors (bad nonce data), its just erraneous garbage the uC spits out while reading the buffer that contain the good nonces the ßfury found since last poll

buffer[0...15 or 16] is the good nonce data. i think it reads the whole buffer and sends it over usb

Got me three Blue Fury v2 miners rated @ 2.6Gh/s (don't bash me, I came from running several GPUs, so to me it's a major improvement ).

Setup with cgminer latest version and a working USB 2.0 hub is running just fine, but what I get is this :


Not too far under par but clearly not quite as fast as expected.
Any typical n00b errors I could have made?

On the positive side, these things hardly get warm with just a light breeze flowing over them.

PS.

The amount of HW errors seems quite high... Any way to work on getting this figure lower ?

not directly from within windows

Not as far as i know.

Edit: You can just install a linux vm.

I am curious is there anyway to flash these suckers on a Windows box? I am not a *nix or iMac person.

Thanks,

Well my little BlueFury is working well: