Post
Topic
Board Mining support
Re: Hacking The KNC Firmware: Overclocking
by
elasticband
on 16/02/2014, 11:13:25 UTC
DO NOT ATTEMPT THIS


Three attempts with a single 8vrm board for tests and each time i got the same result, a CRAZY buzzing noise from each VRM.

I have had this before from a board that got RMA'ed.


edit: few minutes after powering off i hear this clicking noise, like a switch being flicked. I also heard this on the faulty 4vrm board.

just did this and i can confirm it works and i hear no funny noises...i used same volts as he did -0.0527 Smiley

5-8c drop in vrm temp, i'm rocking 2 241 n 2 271 now...temps all below 50c and the 8vrms mods are lower temp then 4vrms n oc'd more man i wish i had more 8vrm mods...

730gh/s 10200 WU with .31 hw errors...guess i'll wait for 24hr avg to see if it holds yay!!


just tried it with a second 8VRM jupiter, same result, crazy buzzing/hissing noise from all boards.

1.95spi3.3spi  201442mhz -0.0527

TAKE SCREENSHOTS OF HOW YOUR BOARDS ARE TWEAKED FOR AN EASY RESET


eit: i tried to record it, but the sound of other fans over powers it in the

edit: well here goes my sunday, going to test each 8vrm board individually

edit: first board, buzzing, HW 0% hashrate 205GH. Don't know if this is good or bad.

edit: -0.07 seems to have calmed the buzzing a little, but still there. going lower. -0.0527 really sets the buzzing off and HW high.

edit: -0.089 seems to have stopped it, but not getting near 190GH. only 155GH with 1.5% HW

edit: now this is interesting, despite the above, the board reads at taking 130w for 155GH

edit: second board, 8vrm all taking power, there is a very faint buzzing noise, nothing like the last. away to try OC now

edit: OC 271, 187GH 0.03%HW, power 213w. -0.0527, buzzing noise
edit: no buzzing noise, NO OC, -0.0798, 165-170GH 140w, 0.03% HW
edit: low buzzing noise, 271 OC, -0.0798, 190-195GH 195w, 0.00% HW

edit: third board, all 8vrm have power, really faint buzzing. OC coming
edit: buzzing increased,OC 271 180GH 210w .26%hw -0.0527. buzzing increasing
edit: lower buzzing, OC 271, 190GH 201w 0.11% HW -0.0798
edit: much lower buzing, 0c 271, 185GH 195w 2.3HW -0.0894

edit: suns semi out, going out. getting no where.

edit: did the last board whilst waiting for the woman. pretty much same results as above but never as nice of a GH rate.