Quote from: zvisha on September 23, 2014, 12:22:10 PM

Quote from: wissam on September 23, 2014, 11:44:32 AM

Quote from: zvisha on September 23, 2014, 11:07:38 AM

Quote from: wissam on September 23, 2014, 10:50:32 AM

Hi Zvi,

My SP30s Units have shipped, I just wanted to get your input regarding overclocking before they arrive.

I'm thinking of the settings below please let me know if you think the units will work fine:

FAN: 100 Maximum
Voltage: 0.780V
PSU Top: 1385
PSU Bottom: 1385
The unit will learn lower settings over time for PSU. The fans at 100% is too much unless your input temperature is the limiting factor - it will just waste power. I don't recommend touching settings unless you have specific problem. maybe just increase starting voltage to 0.680 - it will improve start time
What is the maximum safe temperatures that the ASIC chips should run at? I'm reading the user manual and on the last page there is a screen shot of 85C and 105C, does that mean that I should ensure the temps don't go above 105C or will they be ok to up higher? if so how much?
125 is the high limit. Any number under that is ok as long as you get good hash rate

Any further information that you think will help in the overclocking of the SP30 would be much appreciated. I'm not much of a technical person but I can try.
The SP30 arrive overclocked to maximum by default, then they learn and downclock to match environment
By the way the screen shot in the user manual also shows some chips as disabled:

12:disabled (Stuck DLL)
22: disabled (Stuck DLL)

Would that mean that the ASIC is not working? what if that happens to use what do we do?
Sometimes HW gets damaged in shipment. You should contact us and we try to resolve the issue.
Thanks Zvi.

Inline.

Thanks for your input Zvi You're Awesome.

Note that I am hosting at a hosting provider and am paying a fixed rate and so I don't mind if the power that is drawn is more or if the fans make too much noise, the only thing I'm concerned about is getting the fastest possible hashing rate without reaching temperatures that can damage the unit. The hosting area will be using evaporative cooling, I'm not 100% sure on what the ambient temperature will be but because it's a hosting environment I'm guessing temps won't be too much of an issue.

With power consumption, noise and temperatures not being an issue/limiting factor (I can use as much power as I want, make as much noise as I need and my cooling is good) but only wanted to increase hash rate without damaging the device, what settings would you recommend in the over clock section of the miner setting so that I can adjust them once the miners are installed?

The fans take the power from the PSUs, and there is limitation in each PSU of about 1330W. So if you use the fans too much you waste ASICs power. Usually 80% is enough.

Will do, So what I'm gonna be doing then is leave the Fans at 80 and only adjust the starting voltage to 0.680. Will check all ASIC and if I see any issues I'll be in touch to see what we need to do to fix them. Hopefully you guys did enough testing in the units before shipping but out of 29 units there's bound to be some issues...