Topic: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs - page 290. (Read 1260290 times)

It's not a home mining machine despite its description. If you want to keep your Dad happy don't buy one.

This is an SP20?

My dad is really interested in buying one (which he will force me to get one too) but I don't want to be playing around with it all the time. Just plug it in, input my pool and that's it. Do you think it is a hardware issue or software?

its pretty loud , unless you are in a cool enough area where you can run the fans at 60% its loud.  You should be able to hold a phone conversation though just raise your voice a bit

Yea, I get it. But it just gets me pissed when someone puts all that money into something and doesn't do it properly. No fire suppression at all? If it was malicious, yea, I feel bad, but everything still could of been saved if there was fire protection in place. It's like when someone doesn't wear a seatbelt when driving a car and gets into an accident and hurts themselves. Of course I have empathy for that person, but I'm still angry as all hell because they should have been wearing a seatbelt. Ok, back on topic.

I finally saw some large photos of the SP20, looks pretty nice inside, clean and neat. Does that have just one fan? Is it very loud the other SP models? This unit seems to be made for the home, so my dad is asking me about if it is loud or not. Is it tolerable to be in the same room with it and have a phone conversation?

I'm at my 9-5 right now no access to the unit which is down right now , we skyped last week when I initally contacted you if you remeber we had the issue with trying to switch the firmware where the dropdown of previous versions did not show up.  You provided me the link to download the firmware and I was able to downgrade but
the issues still persisted.  I can ping you again in a few hours if you want to take a look at the unit.

thanks

Skype me at zvi_shteingart

Done and thanks, hope this gets resloved soon, the SP30 is part of my heating solution in the home and i'm in the progress of purchasing a few more sp20s for garage heating as well.  The Sp20s do not seem to generate enough heat though for my purposes even with the fan throttled to 60%

Contact support@ to approve RMA

its an End of August sp30 machine not sure if it is still under warranty what is the procedure for replacing it ?  Is it via email or via
the website.

thanks

If you have a bad unit you can use your warranty to replace it.

Maybe you just have a dodgy one. They happen even in the best of products. My SP20 is running at near 40°C on the intake with no disabling of ASICs

I  see the same issues at higher temps : 24c to 30c , I disabled the troubled asics and still every few hours when I check the machines half the Asics will report failed , sometimes all with the machine not even mining at all.

Its a deeper issue with the firmware than just temps I think.  Getting really frustrating at this point basically tried everything to keep it stable but nothing seems to work.  I have to bounce it every few hours but I don't have time to babysit it I have other stuff to do.

We're investigating.

Indeed, but a hardware to be reliable, must handle 25°C variation without too much trouble.Here at low temperature some ASICs can't start. It will be a good idea to add a 'delay' option for the troublesome ASICs where they are turn off during the cold start and enabled later. Adding an option to change the Fan speed according to the intake temperature, will be a good too idea too. (I suspect this issue to trigger some machines crashes when minergate restart).

Some machines work fine at low temperatures. I've seen a few operate just dandy at intake temperatures as low as 2°C. However, others will show problems at intake temperatures as high as 8°C.

When a machine has trouble at low temperatures, it's often specific ASICs that show the problem (often #2 and #17). It's not always the ASICs in the front that have issues, though it seems more common to be those. Once an ASIC has trouble at low temperatures, it sometimes has trouble even when warmed up. Sometimes it has to be disabled permanently; other times it can be enabled once the machine is warmer.

The 1626 is calculated based on the clock speeds of the ASICs, and should be the actual number of calculations per second your ASICs are performing. Your machine only reports wins back to the pool server, or hashes with a value below the current difficulty setting for that share. The second value is an estimate of the number of hashes your machine must be doing based on the number of wins you have sent back to the server over the last 5 minutes. It's noisier and will bounce around a lot, but this is the number that the pool will reward you for.

Basically, the second number is accurate, but the first number is precise. Both numbers have their uses, which is why both numbers are displayed. They should be within about 20% of each other if your machine has been running for 5 minutes or more.

confused a bit on the stat pages for the sp20 vs sp30 using 2.5.13


Statistics
 

Name          GH/s        5 min GH/s    Accepted shares Rejected shares Errors Utility Last Share
  sp20         1626.025 1765.03359    1197                     0                 0         45.78 08:42:25


as you can see the mining rate is stable at 1626 GH whereas the 5min gh/s stays from 1700 to somtmes 1800 GH

same thing on the SP30 the 5 min rate is conistantly higer sometimes I see like 4700 GH vs the actual of 4400.

which number is the real number ?

It's looking more certain that what we've been seeing in our DC is a poor reaction of SP30s to temperatures below about 6°C. We haven't seen any issues with SP10s yet at these temperatures.


This is what we're doing.

I designed our system with the intent of using 100% fresh air -- air would go through our miners once then be exhausted outside. With the revelation that SP30s have problems below about 8°C, we've had to revise that system, as it's currently -4°C outside, with a forecast low for tonight of -11°C. Over the last few days, we have set up a system whereby we can control the amount of fresh air vs. recirculated air we get by turning on and off fans. It's a bit rough still, and produces hotspots when we recirculate too heavily, but it works.

The tricky thing is getting the air to mix where you want it to mix. Our hot air containment system was designed with the intent of having the interior be hot and low pressure. In order to get air to recirculate, we have to make it hot and high pressure. This means we get hot air leaking out at every hole or crack that we have in the containment. Unfortunately, the most common cracks and holes we have in the system are the rack mounting bars for the SP30s, which means we tend to get uneven air temperature within a single SP30. Air on the side tends to go through the SP30, then circle around and come back out the front by the mounting bars, and then go through the SP30 again. On the sides of the machine, the air will make several circuits through the SP30, but in the center, the air goes through only once. We're working on sealing off those little cracks. There are other problems too, like making sure that the eight corners of our pod all are exposed to roughly the same temperature, and making sure that our intake and exhaust air streams get mixed well.


You can click on "Firmware Upgrade" then "Manual Selection" to access several firmware versions which Zvi currently thinks are decent. You can download all of the old firmware at http://storage.googleapis.com/spond_firmware/spon_2.X.YY.tar, where X and YY are the version numbers of the firmware you want to use.

We're trying. Thank you.