Post
Topic
Board Mining (Altcoins)
Re: GridSeed 5-chip USB miner voltage mod
by
Reggie0
on 28/03/2014, 19:04:51 UTC
Awesome! I'll gonna try to beat that Smiley!

My opinion is it's not a good idea, because
- every 100mV gives more less extra frequency and efficiency will be very bad.
- i tried to add more 280mV and it caused temperature runaway in idle state.


Solder bridges + resistor + pencil ?

Tell me your secret!

Nope, you need to change resistors only. Replace R52 with 100k, and place 120k to C32. In parallel it is 54.54kOhm, and VDD will be 1.97V.
If you would like to use only one resistor there is a 54.9kOhm in E96 series, but VDD will be more than 1.97V maybe 2V.

If it is working pls. for you, pls support my risky experiments:)
BTC: 1gqdzx8iSwUGt3vaoEaPCjvrWo7zKn7PK


I am giving out 0.6BTC to the first to get his Gridseed miner stable at 1100 MHz (<10 HW error in 24h) and post the steps to mod the miner. So far I have managed to get it stable at 1013 MHz, but I feel we can push it further.

Disclaimer: as always, I am not responsible for damage to your miner, do this at your own risk!

So i won 0.6BTC  Shocked