SP31 Yukon setting

[lamerhouse]

hi i have SP31 Yukon now work a 4.3 th my setting is

Temp Front / Back T,B
22 °C / 70,59 °C
Socket Voltage
208/209 volt
Fan Speed
90
Start Voltage
0.66 / 0.66
Max Voltage
0.73
Max Watts
1300 / 1300

FW Version
2.6.14
CGMiner Version
cgminer4.7.0


what are the best setting ??

  thank you

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[Pissenlit]

Hi, do you want the best settings for effiency or hashing power?

I have a SP35 and I've done a lot of modifications and tests on it, maybe I can help.

[lamerhouse]

thanks for the reply .. I have no energy cost problems .. I'm okay for hashing just do not overdo it does not interest me get to 1000% is enough for me to get to a limit that does not damage the long-go system

thank you

[Biffa]

Whats more important is the ASIC stats, that will tell you if individual boards or chips are overheating.

TBH you are pretty much spot on for a SP31, I've not seen many that run more than 1-200GH/s faster than that and you are within spec (4.9 +/- 10%)

I'd stick with what you have if its stable and has low error counts at the pool, you might get up to 4.5TH with tweaks but end up with higher errors.

If you want to try squeezing a bit more out of it just up the Max voltage slowly at 0.005V at a time and see how it impacts performance

Always checking the ASIC stats page, once the chips hit 125ºC they will automatically throttle back.

[lamerhouse]

for upgrade cgminer 4.8 or 4.9 in sp31

where I find a guide? or someone tells me to someone who has never done?

 thank you

[Biffa]

For cgminer 4.8 you need to install firmware 2.6.4 on an sp31, it will not show a change to cgminer until you change the ExtraFlag setting to 2 for extranone and restart, then it switches over to cgminer 4.8

[lamerhouse]

tx for reply .....

Where can I download these earlier versions and by chance you have of machine settings for normal mode or too little nor too .. but that is stable ... for now is on me .... 4.1 4.3 tx

[Biffa]

Try on this page: https://bitcointalk.org/index.php?topic=521520.14380

[Biffa]

Probably SOL as the company is no more, and they didn't offer the firmware updates as downloads, only through their interface.

Best bet is to find a recovery firmware as I outlined below, search through the spondoolies thread to see what you can find.