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@GenTarkin please post pics of the wiremod
@racebyu very thin layer of super glue is how i attached all my heatsinks.
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ive done direct wiring on motherboards to fix vdroop and stabilise memory. So in theory, your idea could work.
Anyone up to test it ?
Remember to remove the 2 ferrite beads, and replace them with thick solder. Otherwise you will damage your blade.
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U can use a very small amount of epoxy to attach them, alternatively superglue.
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Ferrite bead removal, once they are removed you need to bridge them. Make sure the joint is 2-3mm thick between the 2 pads.
39kohm : running 963mhz @ 6.6 Mh/s
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Ill push my clocks higher, once ive finished the 24hour stress test.
Current Ambiant air temp is 35deg C (95 deg F), the miners highest temp is 55 deg C (131 deg F)
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@wofly.. the blades were designed for those crap industrial 12v switching powersupplies. Im using a High quality atx powersupply, using the 12v pcie rails. Not going to be that amount of noise. Hardware error wise.. 0.1% .. is acceptable in my book. Stock unmodifed i had 5% Btw..  |
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 Ive tested up to 50kOhm, and had 3 thermal probes attached to various components. however by killing the ferrite beads the voltage/current seems to be increased for the chips. Right now im waiting for the chips to "burn in" and then ill increase the frequency to 1000+ |
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@J4bberwock , my thoughts exactly.
The heatsinks on the rear were from an old amd athlon cpu cooler, cut in half. (half per a board)
the small blue heatsinks i salvaged from old graphics cards, however you can make some if you cut up a small chipset heatsink.
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initial overclocking and modding   completed unit  |
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ferrite beads removal and direct soldering took away 20degC of heat output on the top of the pcb.
capacitor replacement and extra heatsinks is to prolong life
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When i got the blade it would do a 800mhz and no more.. with an average hash rate of 5.2.. and a 5% hardware error rate.
1.3 mh/s for 30mins of soldering.. which is a 25% increase in hash rate...
which is worth a minimum of 0.2 btc extra per a month... you decide if it was worth it.
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39Kohm resistor replaced 16v 220uf capacitor with 35v 220uf ferrite beads removed heatsinks added directly soldered power cables  |
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looking for good replacements of FB29 and FB30 , any suggestions ?
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no, can u explain more ?
Or give us the link
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@J4bberwock, did u upgrade 1 or 3 capacitors on each board ?
Doubling the powerplugs ? directly soldering the powerwires would be easier and better.
Whats the stable core mhz and combined hash rate with 43Kohm ?
+1 for pics.
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anyone tested a 43Kohm resistor ?
Could only source a 39 and a 43.
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will do...
does anyone know the root password for hashra ?
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got myself 39kohm resistors (type 603) and 220uf 35v capacitors.
Will post with my results once ive done the soldering ;-P hoping for 1050mhz stable
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