Block Erupter USB - Overclocking/ hacking ?

[viriat0]

FIXED tutorial

http://snk.to/f-c7xmwnj1


note thanks for the feedback I attempted to correct the links if they don't work let me know again. But I put links that can now be copied and pasted into a web browser and they are working for me on 2 computers so hopefully they are now good, modified temps for rework and also added bluestreaks orientation for the OSC

Amazing

Thanks

[pugano]

no problem guys just take advantage of it

[GenTarkin]

I would love to give this a try ... been contemplating getting some USB miners...
I hate soldering but have watched some hot air SMD stuff on youtube, and your guide and it doesnt look entirely too hard.
So, I have a noobish question... At work we have a LF-8000 solder / desolder station. It came w/ traditional soldering iron and a vacuum / pump desolder wand. It also has option to hook up their hot air pencil to it(optional part) and its quite costly. So... my question is, can I just hook the vacuum wand up to the hot air pump connector and use it as a hot air pencil? ..... or would the internal design of the wand not cause that to be effective...

[ekrem]

the same oscillator or no?

http://www.alibaba.com/product-gs/791497483/OSCILLATOR_16_000_MHZ_3_3V.html

 http://www.alibaba.com/product-gs/618755231/FXO_HC335R_16_OSCILLATOR_16_000.html

[vitruvio]

the same oscillator or no?

http://www.alibaba.com/product-gs/791497483/OSCILLATOR_16_000_MHZ_3_3V.html

 http://www.alibaba.com/product-gs/618755231/FXO_HC335R_16_OSCILLATOR_16_000.html

Yes, look the same, but they are not correct for BE, those are 3.3x2.6 mm and the right size is 5x3.2 mm


Regards

[ekrem]

this may be diferent pls check pdf  http://store.comet.bg/Catalogue/Product/17012/

[vitruvio]

this may be diferent pls check pdf  http://store.comet.bg/Catalogue/Product/17012/

Wrong size again, 5 mm x 3.2 mm is needed

[tombs]

what is the thread size on the screws? I am thinking about some things but don't have access to a USB erupter right now.

[vitruvio]

what is the thread size on the screws? I am thinking about some things but don't have access to a USB erupter right now.

Don't know it, but those plastic screws is the first thing you must remove and add a heatsink

[Ytterbium]

Has anyone tried cooling these with dry ice, just to see how far they can be pushed?

[ooxtcoo]

yesterday my elektronic parts arraived.
i got 16.000 mhz oscillator and r1 for the erupter.

i have soldere it in.
i used a old edenet 4 usb hub.
to fit 4 erupters into this one, i soldered the usb connectors out and put the first downwards next upwards,
next again downwards and the last again upward... this way, all ports can hold the erupters.

i opened this hub and soldered a old case fan on the voltage input of the usb hub.
then i mounted the fan dirctly with screws on the usb hubs case.

on the overclocked usb erupter i mounted a headsink from the old hd5970 grafikcard, the one from
arktic cooler what was used to cool the vrm's.

now it running since yesterday without any problem and cooler then the not modded usb erupters.

the not modded erupters getting:
(5s) speed: 333 mh/s avrg. speed: 333 mh/s
the overclocked erupter (with 16.000 mhz):
(5s) speed: 420 mh/s avrg. speed: 380 mh/s (very stable at this value).

not mutch more hw errors then the normal one.. just 0,2%

maybe i have time tomorow to make some photos to show you what i meand with the usb hub, to with all erupters into all 4 ports...

but the powersupply of the usb hub is not good enugh.. with original power supply, i can only run 2 erupters,
with 3 or 4 it dont works or it very bad works..

[Scorpia]

yesterday my elektronic parts arraived.
i got 16.000 mhz oscillator and r1 for the erupter.

i have soldere it in.
i used a old edenet 4 usb hub.
to fit 4 erupters into this one, i soldered the usb connectors out and put the first downwards next upwards,
next again downwards and the last again upward... this way, all ports can hold the erupters.

i opened this hub and soldered a old case fan on the voltage input of the usb hub.
then i mounted the fan dirctly with screws on the usb hubs case.

on the overclocked usb erupter i mounted a headsink from the old hd5970 grafikcard, the one from
arktic cooler what was used to cool the vrm's.

now it running since yesterday without any problem and cooler then the not modded usb erupters.

the not modded erupters getting:
(5s) speed: 333 mh/s avrg. speed: 333 mh/s
the overclocked erupter (with 16.000 mhz):
(5s) speed: 420 mh/s avrg. speed: 380 mh/s (very stable at this value).

not mutch more hw errors then the normal one.. just 0,2%

maybe i have time tomorow to make some photos to show you what i meand with the usb hub, to with all erupters into all 4 ports...

but the powersupply of the usb hub is not good enugh.. with original power supply, i can only run 2 erupters,
with 3 or 4 it dont works or it very bad works..

the hash speed is low for a 16Mhz unit. if your running cgminer make sure you have v 3.4.1+ and then add the "-icarus-timing short=90" option to it.

my understanding is that cgminer is tuned for stock BE speeds and once you start to overclock cgminer doesnt talk to it quick enough so the stick goes idle for some of the time hence the lower hash rate. it seems to get worse the faster you overclock which would make sense. adding the icarus-timing option tells to to retune for the current speeds.

that fixed my hash speeds. im now getting 477Mh/s

also what value did you get for the R1 resistor?

[bitminterlt]

Does anyone know if the oscillators on the Blades can be changed like the USB versions.

I know there are two different versions, 14 and 16MHz on the boards now which gives 10~Ghz and 13~Ghz
The voltages are adjustable and tunable via adjustable resisters on the boards.

I am just wondering if I could change the High side to say 18MHz and tune the voltage. Anyone have any experience on the Blades?

Thanks in advance and I will open another topic on that, but wanted to bounce the idea on here first since its pretty much the same hardware in both units I believe.

[streetuff]

The Blade have a 12Mhz and 14 Mhz Oscilator. And yes. They could be changed.
I run my Blade at 1.2V and at high clocking.

edit: Proper cooling is needed at 14Mhz.

[Dougie]

As I stated before a tutorial on how to upgrade your erupters to 447 Mh/s be advised this is my first tutorial. and I want to thank all the hard work that went into me being able to complete this by everybody here. please send all feedback as a pm as if you find something totally fucked up about my tut I can correct it and reupload a better version. I hope this helps noobs like me do this mod and best of luck mining.

http://snk.to/f-c7xmwnj1

note this is a corrected version

This is a very good tutorial! Well done!

[bitminterlt]

The Blade have a 12Mhz and 14 Mhz Oscilator. And yes. They could be changed.
I run my Blade at 1.2V and at high clocking.

edit: Proper cooling is needed at 14Mhz.

Yes, I have mine running on the 14 too and with high cooling as well. I was just wondering if anyone has tested them further than the 14MHz one. All of my cores are running around 1.201 as well. Has anyone tested their limits? I only have one, so I dont really want to kill it testing this out on it. If anyone else has sucess, I wouldnt mind trying it then... lol

Just got myself all of the SMD rework station and all kinds of goodies in, just waiting on my assortment of Resisters and Oscillators to come in from China.... Next week hopefully. I will be modding about 30 units of the USB ones, and will have extra left over after to mess with the blade .... extra 3.8GH hashing here I come

[mjgraham]

The Blade have a 12Mhz and 14 Mhz Oscilator. And yes. They could be changed.
I run my Blade at 1.2V and at high clocking.

edit: Proper cooling is needed at 14Mhz.

Yes, I have mine running on the 14 too and with high cooling as well. I was just wondering if anyone has tested them further than the 14MHz one. All of my cores are running around 1.201 as well. Has anyone tested their limits? I only have one, so I dont really want to kill it testing this out on it. If anyone else has sucess, I wouldnt mind trying it then... lol

Just got myself all of the SMD rework station and all kinds of goodies in, just waiting on my assortment of Resisters and Oscillators to come in from China.... Next week hopefully. I will be modding about 30 units of the USB ones, and will have extra left over after to mess with the blade .... extra 3.8GH hashing here I come

As for limits I am not sure, today I made the 25 MHz mark, 1.95V @ 6.5A, I am still using air cooling but a lot of heat sinking and pressure to hold it together.
after 50 min. not to bad I don't think although the setup is a little out of norm, mostly for testing.

ICA 0:       │ 429.0/697.6/741.5Mh/s │ A:488 R:0+0(none) HW:12/2.4%           

[Josue]

With 16mhz is necesary change the heat skin? Or only with air can work?

Thanks¡

[Scorpia]

With 16mhz is necesary change the heat skin? Or only with air can work?

Thanks¡

I currently have 4 sticks running at 16Mhz at full hash of 447Mh/s with no changes to the heatsink. (I didn't even remove it to do the soldering.)

current temps are around 37deg C with ambient around 16degC. my 13.5Mh/s units are around 32degC. I have a 23cm desk fan blowing air across my miners.

it seems to work well.

so no you don't have to modify the heatsink.

[Josue]

With 16mhz is necesary change the heat skin? Or only with air can work?

Thanks¡

I currently have 4 sticks running at 16Mhz at full hash of 447Mh/s with no changes to the heatsink. (I didn't even remove it to do the soldering.)

current temps are around 37deg C with ambient around 16degC. my 13.5Mh/s units are around 32degC. I have a 23cm desk fan blowing air across my miners.

it seems to work well.

so no you don't have to modify the heatsink.

Lot of thanks for your reply. You use air solder to do that without remove the heatsink???