Post
Topic
Board Hardware
Re: Block Erupter USB - Overclocking/ hacking ?
by
ElitePork
on 29/09/2013, 10:15:42 UTC
From what I know, USB block erupter uses 5x3.2mm oscillators and blade uses 7x5mm oscillators.
The older blades uses 14mhz for higher frequency, so u have to buy higher frequency for that.
According to USB block erupter, u can only overclock up to 16.8MHz due to the regulator can only output 3A..

@Friedcat:
Is there a possibilitie to overclock the blade?
There is only a pre-defined high clock, iam reaching
13.2 gh/s, but could reach more because my blade
Is on the heatsink 23 degrees and on the chips 51 degrees.
So is there a way to bring it to a higher hashing rate?
I really would like to.

What is the max temp on the chip side?
Not easy.

The oscillators are fixed on the hashing board (one 12MHz, one 14.318MHz). Low switches to the 12MHz one while High switches to the 14.318MHz one. If you need more speed you will need to buy a 3.3V 5mmx7mm oscillator that is higher than 14.318, unsolder the current one, and solder the new onto the board. We tried 14.7xx and 15 before. On 1.25-1.26V they begin to work, but producing a lot of heat.

Plus, grabbing the oscillators out of the board definitely voids the warranty Tongue