Re: GridSeed 5-chip USB miner voltage mod

Hi all,

thank you very much for sharing your modifications

I can't find 5% resistor so would 1% resistor be ok ?
http://www.ebay.co.uk/itm/VISHAY-DRALORIC-CRCW120638K3FKEA-RESISTOR-1206-38K3-1-/181228512324?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item2a320fa444

Thank you very much

Yes, 1% will work fine.
Still, it's just as easy, if not easier to install a standard axial 1/8W resistor in there.
You can bend the wires into an L shape to then bridge solder them on to the two terminals side by side.
They are wired in parallel as there is supposed to be a capacitor next to each resistor per the schematic.
I verified this with my DVM by the way. So that gives you two solder points per connection to fudge the resistor in place.
Much easier than working with nearly microscopic size resistor chips IMO. Wink

Plus you can buy them at Radio Shack. Wink

1/4W will work fine too.
Just keep the resistor inside the edge of the pcb so the fins won't touch it when re-assembled.
Piece of cake!
Wolfey2014

Pea Ess, remember, mods' are done at your own risk!

Hi Wolfey,

I'm interested in attempting this mod, but have no experience with soldering on boards.
Can you post a pic of you mods and would you mind providing a near-idiot-proof guide with
the equipment and steps required to make the change.

Obviously with the usual caveat of no guarantees, warranties, etc. Wink

Thanks!

Your best bet is to have someone else do it If you have no experience with soldering. I do laptop power jacks and I had a problem with these. Just a friendly suggestion. I think Wolfey is offering it as a service. You might want to ask him.