Been reading about a lot of dying sp20's

[philipma1957]

I will delete all off topic posts.




I am asking for confirmed dead sp20 info. and if you are like me  confirm all your good ones.

screen shots of your dead machines gui help.

what speed did you run them at.

good ones to dead ones ratio,



 

please don't say they suck
 they did not fix it .
I am looking for trends in breakdowns.

I am also looking for repair techniques.



 In my case 13 into my home all good. all run under  1400gh.   all used quality gold or plat psu's. All ran 2 to 5 months in my home.

[shacky]

Hi,

I have more than 50 SP20, running with Lepa 1600 or Silverstone 1500, each one at 1.2TH.

Dont have any problem at all,

Have all running for more tha 4 months.

[Pt0x]

27 SP20 Miners running fine at 1.2TH, all with 80 gold or Platinum PSUs,  BUT  5 only boot reliably from a SD Card.

[Xian01]

8 units total. 2 have given me some problems recently, but nothing I haven't been able to resolve so far (purchased a replacement board from a user), although I think luck has a lot to do with it...

Spider sense is telling me two controller boards are starting to lose their marbles. One wasn't honoring the voltage settings. Set the limit to 150 on one of the loops, and watched it go past 175 and the temps start to rise, and one of the loops had an * beside the temperature. I'm betting that's how that one PCIE socket of mine burnt out; controller probably went nuts and gave it too much power, causing the cable to actually melt and cause the wires to snap.

EDIT: All running Corsair AX 1200 gold power supplies, and the one I fixed most recently with a replacement board is now running on an Antec 1300 plat, clocked at ~ 1.2TH/s

[philipma1957]

My thanks to all replies.

I would love to read more people's info.


I want to do this for the 3 major  pieces of gear that came out last dec.

the sp20
the s-5
the avalon 4.1


then do the sp30 sp31 sp35

along with the s4 and s4+

I am trying to do this to assess what breaks most.

Pcie socket
controller
pcb caps
etc

[philipma1957]

dogie

I deleted your post since it has no info on sp20's

To all This is about gear info on gear you own.

and in this case only sp20's

[p3yot33at3r]

I'm having problems too. 2 out of 3 of my SP20's no longer boot - dead controllers. Tried every kind of SD card, recovery, boot & in every possible combination - dead. The worst thing is, SPTech are charging way too much for the replacement controller boards to make it economically viable to buy them - especially when there's a very good chance that the same thing could happen again at any time.

It's a shame, cos when they work, they work great - but when they don't, you're screwed.

I'm a bit miffed about it all tbh......

[philipma1957]

So far 128 sp20's mentioned.

13     13 - 0     Philipma1957
50     50 - 0     shacky
27     22 - 5     Pt0x   -----------    but the 5 do recover with sd cards
  8      6 - 2      Xian01 ----------   a controller and a pcie issue fixed by owner
  3       1 - 2     p3yot33at3r ----- dead controllers
  2       1 - 1     r00t$ --------------    needs an sdcard and 2 bad asics
  9       9 - 0     Prelude ------------ all good has run them at 1.1th
  5       5 - 0     sjc1490 ------------ all good  run at 1.1 to 1.3th
 17     17 - 0    Tupsu --------------- all good
 17     17 - 0    Finsky --------------- all good some ip issues ran them hot 1300 to 1500gh
 58     56 - 2    MCHouston --------- 2 with dead asic issues.
 17     14 - 3    sidehack ------------- 3 with shipping damage
 1         1-  0    alh ------------------- 1 good with a slightly hot asic chip
 4         4 - 0    GenTarkin ----------- 4 good run 1250 to 1400
 4         4 - 0    tlhIlwI---------------- all good but the eBay purchase runs hot

so of the 235   looks like 220 still run  and 15 needed parts from sp-tech or run a bit less then then should


thanks for info so far.

I know it is hard to not complain about the rma or company not doing the right repairs.  

Thanks for not pushing too hard in that direction.

I am hoping for  a few more replies today.

Thanks again Phil

 
Totals

the running rate with little or no issues is over 93% 

the remaining 7%   run somewhat after repairs.

I will leave thread open longer for more replies.

Thanks for not pushing the anger on the imperfections.

Best to all phil

[r00t$]

2 SP20's running since Nov. One unit has been running strong at 1.3 TH/s.

The other is down 2 ASIC's, with an intermittent test serial failed message. Sometimes the 2 faulty ASIC's will hash, but I've found it easier to simply disable and not have to babysit the unit. This unit also will not run reliably without an SD card. 

[philipma1957]

2 SP20's running since Nov. One unit has been running strong at 1.3 TH/s.

The other is down 2 ASIC's, with an intermittent test serial failed message. Sometimes the 2 faulty ASIC's will hash, but I've found it easier to simply disable and not have to babysit the unit. This unit also will not run reliably without an SD card. 

thank you  for your input

[Prelude]

9 SP20Es, all purchased used.

All running at 1.1TH/s due to lack of power. Getting a new electrical service installed next week, once that's done they'll be mining at ~1.3-1.4TH/s.

Haven't had a hardware failure yet. CGminer likes to restart it's self once in a while, but I donj't see that as a big issue.

[sjc1490]

 5 SP 20 all running down clocked (thanks for your thread) in the range of 1 to 1.3 TH. 1 on a Corsair 1200 PSU 1 on an old S2 PSU and 3 on 1300 G2 PSU's. SE USA.

[Tupsu]

SP20 was one big lie from start to finish.

Technical Specs.

Effective Hash Rate
 
1.7 TH/s ± 10%
 
Nobody knows any SP20, which would be  works at a speed of  1,7TH/s+170GH/s=1870GH/s

Even  was almost  impossible to achieve 1,7GH/s.

With each new purchase SP20, the price had already fallen and previous order had not yet arrived.

My 17x SP20 are still working, so I have not had to deal with those horrible ( KNC )  customer service, or had to buy their overpriced spare parts.

The only good thing with them is a SP20 software.  
For this we must thank of just one man and his efforts -  Zvisha Shteingart .
http://www.spondoolies-tech.com/pages/team

But one man can not stand against the policy of the company.
I think it is right to put a reference mark  Spondoolies - Tech = KNC

[Finksy]

17x SP20e purchased in December, mined for about 2-3 months with them without problem, sold them way too early.

Had 2 or 3 that had a hard time getting on my LAN via DHCP, but was easily fixed after running a DHCP server on my PC and pegging static IP's. Some hashed steadily @ 1500 GH/s for periods of a couple weeks, most stayed at around 1300GH/s for their life to keep chip temperatures down (I never trusted their auto-settings, they would leave the chips hotter than I feel was good for longevity). 

They were great miners, if only they had been marketed and priced more accurately given their true performance. For a small "home" style miner, they were built too expensively for both the company and the consumer, and ultimately seem to have been the nail in SP-Tech's consumer sales' coffin.  SP has made it clear that they are not willing to sacrifice quality in order to sell for less, which is a problem in our world (or was more-so in 2014 w/ difficulty) because miners are not assets, they are liabilities; their only true value is in what they can provide in revenue during their foreseeable lifespan.

[MCHouston]

58 SP20e 50 Purchased new from Spondoolies, 8 purchased used locally.

Running for 4 Months at 1.4Th each.  Two units have dead asic boards.

[sidehack]

SP has made it clear that they are not willing to sacrifice quality in order to sell for less

Sacrificing complexity (and in my opinion, heat density) would sure be nice, as that tends to decrease costs and increase reliability. 200A four-phase VRMs per 120C-rated chip and an FPGA-implemented custom comm protocol into a custom controller board isn't doing the trick.

I've had 17 running on my hosting shelves for several months now with occasional issues. Three of one guy's six miners were damaged out of the box, including cracked inductors on the VRMs, cut ribbon cables and a smashed LED. One of the damaged units has a pair of ASICs that have never worked since being here, and the unit will not hash at all if that loop isn't manually disabled.

[alh]

My single SP20 was purchased used in February of 2015. For the most part it's been run underclocked in the range of 1000-1200 GH/s, with a few hour burst run when it was colder. The max has been about 1400 GH, since I only have a 1000W power supply, and only let it go to about 950W from the supply.

I try not to reboot it often, and sometimes when it's a power-cycle type of reboot, it seems to go through 1 or more additional internal reboots to get itself all squared up. I use my router to assign a static IP address. It's connected to my WiFi network via a Netgear WiFi-->Ethernet bridge that's powered off the SP20 USB port. I haven't tried to make the SP20 run a WiFi dongle in the USB port as others have.

I's been essentially trouble-free, with one hot ASIC, that's usually about 20C hotter than the others. That ASIC is on a loop that is usually 30+ Watts over the limit I specify. The other 3 loops run as specified, and seem cooler.

I cross my fingers whenever I have to reboot it.

[GenTarkin]

4x SP20e been mining on them since jan / feb without issue.

In recent months all 4 of them run towards 120C at chip temps on loop 2 & 4, VRM's around 100C ... they are tanking the heat like warriors.
I did up the fan to keep them as cool as possible. Throughout the winter, fan was at 10% and clocked much higher than they are now. I think they were running close to 120C in winter as well w/o issue. They declock / devolt as needed to stay under 120C

Run them anywhere between 1250-1400GH

[Pt0x]

I'm having problems too. 2 out of 3 of my SP20's no longer boot - dead controllers. Tried every kind of SD card, recovery, boot & in every possible combination - dead. The worst thing is, SPTech are charging way too much for the replacement controller boards to make it economically viable to buy them - especially when there's a very good chance that the same thing could happen again at any time.

It's a shame, cos when they work, they work great - but when they don't, you're screwed.

I'm a bit miffed about it all tbh......

The ones that that I own and failed to boot, did not started after several tries with the permanent boot sd card inserted. I can tell you that I tried to boot a least 5 times per miner with different time intervals between tries. But once I got them to boot at least once, they started to work again as expected.

Every time I had a power outage, I could loose as much of 2 or 3 days of mining until I used the SD cards. Now they boot immediately after the power comes back or in the second try.

Now I keep some SD cards ready all the time waiting for the next board with dead flash.

[philipma1957]

I will tally numbers in a little bit.

So far looks to be better then 90% good.