Hi, I bought a Blade which is modified with 35v 220uf capacitor, 43k ohm resistor 0.1 +/-, 2 custom heat sinks attached on the rear of each power board, passive heatsinks on the all Mosfets and chokes.
I'm using a 750w PSU to power it as well as 2 stock unmodified Gridseed blades. I only had it running for a couple hours when the PSU shut down. I looked at the modified blade and there are scorch marks between the Barrel connector and USB port, the chip that visibly appears to be fried is the one between the USB and Barrel port labelled AFR26.
Pics of the blades below:
http://i59.tinypic.com/50i9dz.jpghttp://i60.tinypic.com/10f6ip5.jpghttp://i59.tinypic.com/2udxgcp.jpghttp://i58.tinypic.com/212sq68.jpgAs the mosfets and chokes, etc all have heatsinks on them I can't see what else is fried from a quick inspection. Would this have been caused by overclocking too much? I set the clocks between 1000mhz and 1038mhz which the seller said they run stable at.
I can do a bit of soldering so if anyone can guide me on where I can get the components I can probably fix it myself. Also do you recommend I change anything else that hasn't been modified to improve it, i.e barrel connector, heatsink, etc.
Also one of the barrel power connectors from the PSU has its plastic melted slightly but the connector itself looks fine and there are no burn marks on it.
OK the Part AFB26 which burned out is an 300ohm@100MHz,1.5A size 0805. I just ordered 100+ of those so if you need any parts than E-mail me at
we are also custom rebuilding those and other Gridseed units. Currently we replace the standard Power with a much better version to reduce heat and improve efficiency. I can email photos .... let me try to upload one here :
And swap out the resistor down to 40K Ohm :-) or you better also replace the mosfet.
