Topic: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs - page 131. (Read 1260226 times)

I disagree!

8U at 10kW and 50TH/s would be perfect!

8U at 10kw 16-20TH would be perfect for me as well. I would look to run 1 or 2 of a unit at that size.

I don't think 3rd gen will be rockerbox chips, else why wait? They might be some even more optimised version of the Rockerbox design, but its unusual for a company to talk about 3rd Gen when talking about the exact same chips they already have, which is why I am hoping they come out with something for med/large hosted customers rather than just massive farms.

I doubt you will see that sort of density if the chips are rockerbox chips.
My guess is that an SP100 would use 100 chips (The SP3x series has 30 chips). thus my above estimates were all based on 3.35x the specs of an SP3x unit. its unlikely we will see them go into much greater power density than the SP35 achieved. Its possible an SP100 could fit in a 6U size format though while still achieving ~10kw/16TH at peak, or ~6kW/12TH at lower settings.

For 8U I would prefer 20TH

But I'd love to see maybe
2U - 6.5TH
3U - 8TH
4U - 10TH

Or even 1U - 2.5TH

I'd buy them also

If an SP100 comes out thats ~8U, 10kW, 16TH I would be able to operate 1-2 of them. Its definitely not bulk, but it would be a practical size for the serious (ie: >$5000 investment) miner since it reduces on the cost of using multiple controllers and shipping boxes to otherwise ship 3-4 SP3x units

@SP-T: Would be nice to see a clever upgrade path given for old SPT equipment, namely the power supplies. For example, a 750W PSU that could swap out with the 1050W PSU in an underclocked SP10 miner. that 1050W could then be used in newer gear like an SP100.

itll be a couple months... at least that is what I have gathered from SPT recent posts. That and they will initially only be for industrial miners.

new miners coming soon ?
time to get my money ready ?

That they do. They were the only ones that could help me, SP-Tech support was pathetic, even tried to get me to load SP30 firmware on my SP10. Facepalm.

any new sp20 in stock in the future?

You know your shiznit, Toomim!  I'll give you that, Sir!

Time and experience pays off, Mate!

Cheers

Some chips will get errors at voltages below 620 mV, while others will continue to function down to 600 mV (or possibly even lower). If you start them at 600 mV, but allow them to grow to 620 mV, you'll see some of them get turned off due to high error rates at 600 mV even if they'd run fine at 620 mV, which means they never make it to 620 mV. This 620 mV threshold for errors also applies to SP20s and SP3x machines, despite the different manufacturing process.

There are two ways to do underclocking on Spondoolies hardware. One is maximum voltage limiting, and one is maximum power limiting.

To do maximum voltage limiting, you choose a low maximum voltage setting and leave the maximum power setting high. When doing this type of underclocking, you should set the starting voltage equal to the maximum voltage. That way, the machine reaches its final hashrate immediately, and all of the ASICs run at exactly the voltage you set from moment one. This becomes particularly important once you get to the <= 620 mV range, as mentioned above.

To do maximum power limiting, you choose a low maximum power setting and leave the maximum voltage setting high. When you do it this way, you want to set the initial voltage low enough so that the machine starts at a power level that is below the maximum power to allow the firmware to grow slowly until it hits that power budget. This allows the machine to avoid any PSU overloading or ASIC thermal overloading during the adjustment process, but leaves it prone to < 620 mV undervoltage failures.

You're using a hybrid approach right now. You're initially setting a low voltage as if you were doing power limiting, but you're actually capping the power consumption by limiting the maximum voltage to 620 mV. Your machine will do better if you set the initial voltage to 620 mV (or possibly 619).

Keep in mind that the SP10 power meter is not very accurate. At full power, the SP10's power meter readings are pretty close to representing the DC power consumption, so your AC power consumption will be about 10% higher. At minimum power, the SP10's power meter readings are closer to the AC power consumption, and occasionally slightly higher, so your AC power consumption might be 3% lower than the SP10 reports.

"We will be the leader in terms of power efficiency," he added.

That is the one that matters most.

"Our goal is to get to 0.05 W/GHs, 0.03 $/GHs miners by mid 2015 "

 

Spondoolie, you know just like everyone else a home user can't buy in bulk, and if that's all you are going to do in the future then the single consumer is off your marketing list. You for some reason just don't want to verbally say it. It is  your company to do with what you want, but bulk sales to just a few investment groups isn't going to help bitcoin in my opinion.

having my SP20 working, it is time to install a monitor tool for all them.
Could you recommend which one to choose ?
In my rsearch I found this :

multiminer
msminer
minera
cryptoglance

any other ?
which better ?

thanks

Yes, please do.

Should I have my hosting customer whose 2 SP10s have three blown VRMs between them contact you as well? I think August, October and January. The burns weren't quite as exciting as this one. The center of the flameout on the two instances I tore it down for a checkup after appeared to be capacitors.

We would like to buy it back to try and analyse what happened.

We've seen another case due to bad capacitor.

Please contact sales@