Topic: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs - page 293. (Read 1260290 times)

Issue for SP20... noisy?

Issue for SP20... noisy?

Both require a PSU,  2x C1 need 2 liter distilled water+200ml antifreeze. And C1  is silent.

But I look forward to Antminer S5, which goes on sale 15 November

Which one requires extra components not mentioned in the price?

I have had 39 SP30s running 2.5.12 so far for about 12 hours 16 minutes with no apparent issues. If I see no problems with 2.5.12 by next morning, I will probably move the rest of our machines over to it. Otherwise, I will probably move everything back to 2.4.23.

I've had a plethora of "disabled (bist cant start, stuck X)" errors on the remaining 100 or so SP30s we have running 2.5.6 in the mean time. It seems every few hours, I have to restart cgminer on 5% or 10% of our machines to get them back to full hashrate. Very annoying, but so far the issue has always been resolved by restarting minergate.

I've also had several reports of machines on 2.5.6 showing half hashrate at the pool even though I see full hashrate. These issues have always been restarted by a minergate restart.

I saw some much more serious problems on 2.5.7 during the 36 hours we had machines using that version. We saw about 10 machines get "Loop serial failed x" error messages (where x is a loop number, between 0 and 9 inclusive) and fail to start until one or sometimes two ASICs on that loop were disabled. After a few hours, many of these ASICs could be enabled again, but about 25% of the ones that failed are still non-operational. Currently, I think there are 9 ASICs which we lost on 2.5.7 which have not recovered.

It's possible that the potential ASIC-damaging bug in 2.5.7 might still be present in 2.5.12. I haven't seen any indications of it yet, but I also haven't had enough machines running on it for long enough to be certain. On 2.5.7, I saw the loop serial failed ASIC damage thing with about 5% of our machines per day. At that rate, there's only about a 63% chance that I would have seen it if it were present at the same rate in 2.5.12 with 39 machines running half a day.

I have had 39 SP30s running 2.5.12 so far for about 12 hours 16 minutes with no apparent issues. If I see no problems with 2.5.12 by next morning, I will probably move the rest of our machines over to it. Otherwise, I will probably move everything back to 2.4.23.

I've had a plethora of "disabled (bist cant start, stuck X)" errors on the remaining 100 or so SP30s we have running 2.5.6 in the mean time. It seems every few hours, I have to restart cgminer on 5% or 10% of our machines to get them back to full hashrate. Very annoying, but so far the issue has always been resolved by restarting minergate.

I've also had several reports of machines on 2.5.6 showing half hashrate at the pool even though I see full hashrate. These issues have always been restarted by a minergate restart.

I saw some much more serious problems on 2.5.7 during the 36 hours we had machines using that version. We saw about 10 machines get "Loop serial failed x" error messages (where x is a loop number, between 0 and 9 inclusive) and fail to start until one or sometimes two ASICs on that loop were disabled. After a few hours, many of these ASICs could be enabled again, but about 25% of the ones that failed are still non-operational. Currently, I think there are 9 ASICs which we lost on 2.5.7 which have not recovered.

It's possible that the potential ASIC-damaging bug in 2.5.7 might still be present in 2.5.12. I haven't seen any indications of it yet, but I also haven't had enough machines running on it for long enough to be certain. On 2.5.7, I saw the loop serial failed ASIC damage thing with about 5% of our machines per day. At that rate, there's only about a 63% chance that I would have seen it if it were present at the same rate in 2.5.12 with 39 machines running half a day.

wrong math

1x SP20 price! $795+shipping   1700GH/s
2x C1 price   $800+shipping    2000GH/s

Which one is more GH/s ?

new SP20 price! $795
with discount code and shipping of 2 units (3.4TH): 4.5 BTC

7* bitmain S3+ units (3.4 TH) with coupons and shipping this week = 4.7 BTC
4* Bitmain C1 (4TH) with watercooling and shipping this week = 5.3 BTC   (4.64 for 3.5TH)

new SP20 price! $795
 If it was shipping today it would probably be an easy sale, but November 18 is 5 weeks away, or about 3 difficulty increases (~25% cumulative increase?)

Zvisha does Skype chats just remember he is in Israel so the time zone difference.
 

I have two SP20s hosted with Centerus and they both got damaged during shipping. I passed on the assembly instructions sent by Barbara to the Centerus support crew and they re-assembled the units and checked all the connections, but neither miner is hashing. I'm wondering who do I contact to request an RMA.

Do you guys have skype support as well? I see people mentioning zvisha being available on skype but I take it he's there more for detailed technical support not customer service issues, no?

Since Centerus is not on your hosting partners page I take it nobody from your company keeps in regular touch with their crew, no?

 

It's really annoying when you do this. We've already tested our SP30s and SP31s and found the PSU limits that work best for each machine. In the past, when firmware changes these settings, we haven't had records of which machines were using which settings and have had to go back and figure them out again from scratch. Not fun. You have more machines deployed successfully with PSU limits higher than 1275W than you have shipping out right now. Overwriting old settings is more disruptive than leaving them be.

Also, 1275W sounds very low.