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Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 16, 2014, 02:04:01 AM

I measured Zeus R9 R10 R11 on my board R11 is in the correct spot on my Week 1 GAW Fury R9 measures 4.93K on the board R10 measures 4.92K on the board I checked like 5 times and cross checked my multimeter with several spare resistors. R10 = ( R9 * Vfb ) / ( Vout - Vfb ) 4.92 = ( 4.93 * 0.591 ) / ( 1.183v - 0.591 ) Looks like mine is slightly under volted at 1.183v (I did not measure the voltage) I'll have to check my other Fury (Week 3). edit: Almost the same on the other Fury R11 .906k R10 4.91k R9 4.91k so 1.182v

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 15, 2014, 11:26:45 PM

Probably coded in there as a safety measure. These chip use a lot of power and getter hotter the faster you run them. Imagine the power usage and heat coming off a War Machine with 256 chips if someone accidentally set the clk to like 828 instead of 328.

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 15, 2014, 07:45:51 PM

Let us know what the third column numbers are when you get back. The numbers there on mine match the long term pool numbers after it has been running for a while.

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 15, 2014, 06:37:53 PM

For the latest Darkwinde BFGMiner release ONLY: "Check Golden (FROM --nocheck-golden TO --zeus-cg) > Default "false" and Check for Golden Speed currently deactivated" Quote As many many things have been changed here is the short change log: - Re-Base to BFGminer branch 4.2.0 - Set new miner version to 4.2.1 to reflect a stable driver version for Zeus - Bugfix of the difficulty counter (done by jstefanop) - Stability fix for higher clock and lower HW errors - Driver rework, 50% done - Changed command line options for Chips Count (FROM --chips-count TO --zeus-cc) > Default "6" if you do not specify this parameter Chips Clock (FROM --ltc-clk TO --zeus-clk) > Default "328" if you do not specify this parameter Check Golden (FROM --nocheck-golden TO --zeus-cg) > Default "false" and Check for Golden Speed currently deactivated Debug (FROM --ltc-debug TO --debug) > Related output changed to default debug information layer No Check Scrypt (--nocheck-scrypt) > removed as deprecated

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 15, 2014, 05:57:02 PM

Might be a software limit. From BFGMiner Zeus driver: Code: info->chips_count = opt_chips_count; //max clock 381MHz, min clock 200MHz if(opt_chip_clk>381) info->chip_clk = 381; else if(opt_chip_clk<200) info->chip_clk = 200; else info->chip_clk = opt_chip_clk; I don't know if we override that when setting the clk speed. and read count is slightly more than 3/4 (doc indicates it was 3/8 at some point) Code: info->read_count = info->read_count*0.76; EDIT: I don't see max clock & min clock in cgminer driver

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 15, 2014, 05:14:46 PM

here's the "Zeus scrypt chip’s software implementation" doc http://zeusminer.com/user-manual-ver-1-0/

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 15, 2014, 04:20:01 PM

Complete guess here but maybe the readcount timeout doesn't scale with the out of spec frequency or hashrate and the chips are idle waiting for work. Chips count affects the readcount timeout. Chips were spec'd at 300 clk or 210khs so your vmodded 6 chip Fury should perform like a 10 chip device. You will get a totally wrong local hashrate if you set 10 chips but maybe you'll see if there's any difference poolside. I think I'd try 8, 10, and 12 chips as tests to speed up the readcount timeout. Total guess but worth a try.

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 15, 2014, 12:57:23 PM

J4bberwock - what's your hash rate at? nst6563 - is this summary right? 6k resistor, 1.54v, 520 clk, 1.5mh/s + Wish you had a way to measure amps or watts. I'm excited about the mod but with LTC today for example if the gain is 100 kh/s for 50 watts then we'd actually be losing money at 10 cents kWh. I think your volts (and watts) might be lower than J4bberwock's.

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 15, 2014, 11:20:07 AM

Quote from: J4bberwock on June 15, 2014, 09:05:55 AM Regarding the power draw that everybody have asked. 2 overclocked Zeus mini-blades (Copyright to me ) are currently drawing 200 watt at the wall when idle 400 watt when hashing. It's 100 watt for each Fury/Blizzard overvolted to 1.65V from 1.26V when hashing I haven't measured stock power draw. Next step for me will be to overclock the third mini-blade to 1.8-1.9V, maybe 2v to check for increased power draw and hashrate. And after the limits are reached on Zeus, move to a new overvolting/overclocking challenge. Unfortunately, A2 is still too expensive for me to buy one simply to play with it. Thanks for the info. Stock is pretty close to 50 watts so it doubles. Looks like both of mine are able to maintain 1.4 mh/s at around 50 watts. I'm curious to know what hash rate you and nst6563 are getting.

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 15, 2014, 11:10:55 AM

Quote from: J4bberwock on June 15, 2014, 06:10:05 AM R9 and R11 are swapped on my boards compared to the data from Zeus. the 900R is on the right side on my pictures. And the 9.3k is on the left. You can also see that they were supposed to be around 10k and we have 9k on board. check the markings on your resistor before swapping and use the formula if needed I figured they must have been swapped on yours. I'll check mine when I take them apart.

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 15, 2014, 01:16:48 AM

Here's Darkwinde's newest: https://litecointalk.org/index.php?topic=16301.msg183015#msg183015 Note: --chips-count is now --zeus-cc --ltc-clk is now --zeus-clk

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 14, 2014, 10:44:50 PM

This is more recent: https://litecointalk.org/index.php?topic=16301.msg182643#msg182643 It gives a little higher hash rate and less HW errors. Darkwinde also mentioned he will merge the work Jstefanop did and have a new version soon. Maybe this weekend!

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 14, 2014, 07:14:08 PM

Still using 7k resistor value?

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 14, 2014, 06:39:25 PM

J4bberwock & nst6563 are you running them at the same or similar voltage? Any idea of watts (at x volts)?

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 14, 2014, 06:27:15 PM

Now that we have schematics, should we refer to these resistors as R10 and R9? Texas Instruments pdf on top Zeusminer PDF on bottom Zeus schematic J4bberwock - could you please confirm that this looks accurate. If so we can update the formula to: R10=0.591xR9/(desired voltage-0.591) Zeus doc indicates R10=10.5k and R9=10k We don't know if they have made any changes so maybe best to measure and plug into the formula I think. TI doc seems to indicate R10 (TI R7) as being the resistor to change. Seems like R9 (TI R8) has additional function - Error Amplifier Compensation - I don't enough about this stuff to know for sure. J4bberwock hope you can help me out here. It's so great that we have the schematics to refer to now.

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 14, 2014, 03:39:59 PM

That'll help! Thanks ZiG. http://zeusminer.com/shcematics/

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 14, 2014, 12:05:45 PM

Quote from: jekv2 on June 14, 2014, 11:52:45 AM Re: Fury/Blizzard tuning and mods Quote from: happydaze on June 14, 2014, 11:45:53 AM Quote from: jekv2 on June 14, 2014, 11:41:32 AM I am thinking about canceling my preorder of the fury because what needs to be done to get it stabilized, This thread 98% convinced me to cancel. I've done nothing to stabilize two Fury's other than run BFGMiner. Both are 1.4mh/s poolside right now. 340 clk. So no HW errors? No rejects? Edit: From my understanding. T.I.M. Needs to be reapplied. That's buying TIM. Heatsinks need to be applied. That requires more purchasing. And I really do not want to be a nuisance again having someone mod a device for me. This thing should work out of the box without problems. Hardware 5% & 6% errors. Seems to get better with each new software build. Poolside: 0.35% Stale (stale is same as my Gridseeds) 0.00% Invalid - that and poolside hashrate is what matters. 1,401 kH/s & 1,407 kH/s poolside avg now. I'm pushing the clk too at 340 clk. 328 clk is recommended. I'm not suggesting you buy one, just wanted to be clear that the ones I have at least exceed advertised performance of 1.3 mh/s. I haven't taken them apart or anything like that. So mine work "out of the box" with good results poolside.

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 14, 2014, 11:45:53 AM

Quote from: jekv2 on June 14, 2014, 11:41:32 AM I am thinking about canceling my preorder of the fury because what needs to be done to get it stabilized, This thread 98% convinced me to cancel. I've done nothing to stabilize two Fury's other than run BFGMiner. Both are 1.4mh/s poolside right now. 340 clk.

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 14, 2014, 11:42:45 AM

Would using conductive thermal paste matter on the back of the board? Does it ground to the enclosure anyway? (Just trying to use up what I have on hand) I have 10 3sq cm thermal pads. It's not enough to cover the back of the board but could be used where the hot spots are. Do you think thermal paste would perform better than leaving air gaps because of the shortage of pads? It would take a lot of thermal paste to fill the gaps. I touched a temperature probe to one Zeus chip at 340 clk. (Fury was fully assembled) The reading was 50C.

Alternate cryptocurrencies / Mining (Altcoins) / Re: Fury/Blizzard tuning and mods

on: June 13, 2014, 09:26:46 PM

Do you know how many watts?

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