Unofficial Spondoolies SP20 thread

[philipma1957]

@ op match my settings and get back with your numbers

[Finksy]

Phillip, he didn't ask how to get the best hashrate to efficiency for long term, he asked how to get the most hashrate out of the SP20 regardless of consumption.  I highly recommend against using the auto fan feature above 1350-1400 GH/s.  I find it keeps the chips too warm for my comfort, not to mention i noticed a 2-3% increase in power efficiency from running the fans at full speed compared to letting the auto setting do its thing. Bust out the earplugs!

[philipma1957]

Phillip, he didn't ask how to get the best hashrate to efficiency for long term, he asked how to get the most hashrate out of the SP20 regardless of consumption.  I highly recommend against using the auto fan feature above 1350-1400 GH/s.  I find it keeps the chips too warm for my comfort, not to mention i noticed a 2-3% increase in power efficiency from running the fans at full speed compared to letting the auto setting do its thing. Bust out the earplugs!

He has used gear with no warranty.

Setting a fan at 100% and using 200 watts to squeeze out 130gh is not the right thing to do even if his power is free.

but it is merely my opinion.  On what he should do to get the most out of his machine.

 I feel it would last longer and not overheat with my settings.  While it will simply burn up the way he is running it as indicated by his temp readings.



his current numbers :                                    1484gh    1035 watts   fan 90

my settings :                                                1351gh       836  watts fan 12

power is zero cost


133 gh earns  11.88 usd or  0.04298 btc  per month  with 0% diff increases   so more like 10 usd the next month or .037 btc   

If he thinks that his high speed no warranty move is worth it he can try that. 

Or he can relax and just cruise a bit. 

[obfuscated]

Thanks for the replies.  

I'm using two Corsair CS650M PSUs with what I believe are stock ribbon cables.  The PSUs are used.. they came with the SP20 for a reasonable price.  The cables look fairly low gauge.

I'm looking into lowering the voltage or wattage for the back chips because they seem to be the hottest.  Back chips are usually at 120C when the front ones are often as low as 85C.

[philipma1957]

Thanks for the replies.  

I'm using two Corsair CS650M PSUs with what I believe are stock ribbon cables.  The PSUs are used.. they came with the SP20 for a reasonable price.  The cables look fairly low gauge.

I'm looking into lowering the voltage or wattage for the back chips because they seem to be the hottest.  Back chips are usually at 120C when the front ones are often as low as 85C.

those psu's are being pushed too hard please match my settings for the sake of safety

and I bothered to look them up

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139060

max is 612 watts on the 12 volt line

[obfuscated]

Thanks for the replies.  

I'm using two Corsair CS650M PSUs with what I believe are stock ribbon cables.  The PSUs are used.. they came with the SP20 for a reasonable price.  The cables look fairly low gauge.

I'm looking into lowering the voltage or wattage for the back chips because they seem to be the hottest.  Back chips are usually at 120C when the front ones are often as low as 85C.

those psu's are being pushed too hard please match my settings for the sake of safety

and I bothered to look them up

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139060

philipma1957, You make a good point.  If I redline my gear and it burns out, I don't have a chance at making an ROI


The PSUs are currently at about 81% of their max wattage.  Is that considered being pushed to hard?

[philipma1957]

@ Finksy   don't you have some monster good psu's  they never run out of power? 2880watts?

[philipma1957]

Thanks for the replies.  

I'm using two Corsair CS650M PSUs with what I believe are stock ribbon cables.  The PSUs are used.. they came with the SP20 for a reasonable price.  The cables look fairly low gauge.

I'm looking into lowering the voltage or wattage for the back chips because they seem to be the hottest.  Back chips are usually at 120C when the front ones are often as low as 85C.

those psu's are being pushed too hard please match my settings for the sake of safety

and I bothered to look them up

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139060

philipma1957, You make a good point.  If I redline my gear and it burns out, I don't have a chance at making an ROI


The PSUs are currently at about 81% of their max wattage.  Is that considered being pushed to hard?

for that make and model maybe.  It is hard to be sure.

 but I do know you made a crazy hot loud miner that is redlining the asic temps. all for the sake of about 10 bucks a month in extra coin.  the settings I picked will stop the extra heat and drop you from  1036 watts to 835 watts.  with your psu's It would only be 418 or 420 watts each  well under safety margin.

in stead of 518 watts each which is close to safety margin

[obfuscated]

Thanks for the replies.  

I'm using two Corsair CS650M PSUs with what I believe are stock ribbon cables.  The PSUs are used.. they came with the SP20 for a reasonable price.  The cables look fairly low gauge.

I'm looking into lowering the voltage or wattage for the back chips because they seem to be the hottest.  Back chips are usually at 120C when the front ones are often as low as 85C.

those psu's are being pushed too hard please match my settings for the sake of safety

and I bothered to look them up

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139060

philipma1957, You make a good point.  If I redline my gear and it burns out, I don't have a chance at making an ROI


The PSUs are currently at about 81% of their max wattage.  Is that considered being pushed to hard?

for that make and model maybe.  It is hard to be sure.

 but I do know you made a crazy hot loud miner that is redlining the asic temps. all for the sake of about 10 bucks a month in extra coin.  the settings I picked will stop the extra heat and drop you from  1036 watts to 835 watts.  with your psu's It would only be 418 or 420 watts each  well under safety margin.

in stead of 518 watts each which is close to safety margin

That makes a lot of sense.   Thanks

[Biffa]

I've had good luck with my SP20E with the following settings, getting 1337 GH/s
(ignore fan speeds as I am running an alternative fan to the stock SP fan for noise pollution sanity reasons )


Start Volts Unit 1(0.58-0.80)                   0.66

Start Volts Unit 2(0.58-0.80)                   0.66

Start Volts Unit 3(0.58-0.80)                   0.66

Start Volts Unit 4(0.58-0.80)                   0.66

Set your Maximum voltage limit to 0.790 for unlimited or less for under-voltage
Voltage Limit (0.580-0.790)                   0.67

Set PSU power.
Max PSU Power Unit 1 (70W - 288W)       190

Max PSU Power Unit 2 (70W - 288W)       190

Max PSU Power Unit 3 (70W - 288W)       190

Max PSU Power Unit 4 (70W - 288W)       190



2.6.14
Uptime:85742 | FPGA ver:100 | BIST in 129
-----BOARD-0-----
PSU[UNKNOWN]: 0->(186w/186w)[186 186 186] (->186w[186 186 186]) (lim=190) 0c 333GH cooling:0/0xc8
-----BOARD-1-----
PSU[UNKNOWN]: 0->(186w/186w)[186 186 186] (->186w[186 186 186]) (lim=190) 0c 337GH cooling:0/0xc8
-----BOARD-2-----
PSU[UNKNOWN]: 0->(186w/186w)[186 186 186] (->186w[186 186 186]) (lim=190) 0c 339GH cooling:0/0xc8
-----BOARD-3-----
PSU[UNKNOWN]: 0->(166w/166w)[166 166 166] (->166w[166 166 166]) (lim=190) 0c 326GH cooling:0/0xc8
LOOP[0] ON TO:0 (w:6533)
 0: DC2DC/1/:[vlt1:660 vlt2:666(DCl:794 Tl:794 Ul:669) 72W 109A  56c] ASIC:[ 85c (125c) 850hz(BL: 850) 3240 (E:193) F:0 L:0]
 1: DC2DC/1/:[vlt1:664 vlt2:669(DCl:794 Tl:794 Ul:669) 76W 115A  74c] ASIC:[ 85c (125c) 880hz(BL: 880) 3293 (E:193) F:0 L:0]
LOOP[1] ON TO:0 (w:6486)
 2: DC2DC/1/:[vlt1:666 vlt2:669(DCl:794 Tl:794 Ul:669) 78W 117A  92c] ASIC:[110c (125c) 890hz(BL: 890) 3223 (E:193) F:0 L:0]
 3: DC2DC/1/:[vlt1:634 vlt2:637(DCl:794 Tl:794 Ul:669) 71W 111A  96c] ASIC:[115c (125c) 860hz(BL: 860) 3263 (E:193) F:0 L:0]
LOOP[2] ON TO:0 (w:6578)
 4: DC2DC/1/:[vlt1:662 vlt2:666(DCl:794 Tl:794 Ul:669) 74W 111A  56c] ASIC:[ 85c (125c) 870hz(BL: 870) 3265 (E:193) F:0 L:0]
 5: DC2DC/1/:[vlt1:666 vlt2:669(DCl:794 Tl:794 Ul:669) 75W 112A  77c] ASIC:[ 85c (125c) 890hz(BL: 890) 3313 (E:193) F:0 L:0]
LOOP[3] ON TO:0 (w:6396)
 6: DC2DC/1/:[vlt1:638 vlt2:642(DCl:794 Tl:642 Ul:669) 74W 115A  85c] ASIC:[115c (125c) 910hz(BL: 910) 3476 (E:192) F:0 L:0]
 7: DC2DC/1/:[vlt1:615 vlt2:618(DCl:794 Tl:618 Ul:669) 59W  95A  84c] ASIC:[115c (125c) 780hz(BL: 780) 2920 (E:193) F:1 L:0]

[H:HW:1337Gh (500),DC-W:582,L:0,A:8,MMtmp:0 TMP:(24/24)=>=>=>(80/80 , 71/71)]
Pushed 11 jobs , in HW queue 4 jobs (sw:0, hw:0)!
min:57 wins:25993[this/last min:18/16] bist-fail:185, hw-err:7
leading-zeroes:42 idle promils[s/m]:0/0, rate:1118gh/s asic-count:11440 (wins:10+8)
wall watts:794
Fan:50, conseq:200
AC2DC BAD: 0 0
R/NR: 85736/0
RTF asics: 0
FET: 0:5 1:5
 0 restarted      0 reset          0 reset2         0 fake_wins
 0 stuck_bist     0 low_power      0 stuck_pll      0 runtime_dsble
 0 purge_queue    0 read_timeouts  0 dc2dc_i2c       0 read_tmout2    0 read_crptn
 0 purge_queue3   0 bad_idle
 0 err_murata
Adapter queues: rsp=1, req=24

[alh]

Could you elaborate on the fan changes you have made to your SP20?

- Fan model? Is it a PWM fan or are you using any voltage control for speed?

- Airflow direction? (i.e. does it "suck" or "blow" across blades?)

Always interested in what folks do to quiet it down and preserve hashrate.

[Biffa]

Could you elaborate on the fan changes you have made to your SP20?

- Fan model? Is it a PWM fan or are you using any voltage control for speed?

- Airflow direction? (i.e. does it "suck" or "blow" across blades?)

Always interested in what folks do to quiet it down and preserve hashrate.

Got one with a Scythe Ultra Kaze, the other has a Gentle Typhoon 4250rpm

Its located in the same orientation and location as the original fan, both running at 100% full speed off the psu

From here:

Does anybody have an inexpensive solution to SP-20 noise?
My house does not have a basement, so noise reduction or elimination is a must.
Thanks.

The only thing you can do is change the fan. There are some caveats

1. At the same ambient conditions there will be an increase in heat at the cost of hash power.
2. Unless you are handy with a soldering iron the fan won't go on the header on the controler board, so you need to power it from the PSU.
3. Noise is directly proportional to CFM, however the tone or type of noise can change even with a fan that has similar performance. That being said most of the 200CFM fans available have similar db output of between 59-65 db.

e.g. Scythe Ultra Kaze 3000rpm 133CFM Fan intake from window, outside temp 6 °C




Mining Rate: 1506.37Ghs
Temp Front / Back T,B
21 °C / 77,74 °C

[obfuscated]

So I took your advice philipma1957 and lowered my voltages.  Currently running at:

0.68V (start)
0.69V (max)
Fan 60
240W max

1364.51Ghs


One of the asics is STILL sitting at 120C.  I'm thinking there may be some dust in the unit limiting air flow.  Hopefully it's not a defective chip. 

Looks like this weekend I'll be opening for a cleaning.


https://i.imgur.com/arjtncA.png

[philipma1957]

So I took your advice philipma1957 and lowered my voltages.  Currently running at:

0.68V (start)
0.69V (max)
Fan 60
240W max

1364.51Ghs


One of the asics is STILL sitting at 120C.  I'm thinking there may be some dust in the unit limiting air flow.  Hopefully it's not a defective chip.  

Looks like this weekend I'll be opening for a cleaning.

looks like hash dropped 120gh and  watts went down 162 watts.

 fan dropped from 90 to 60  

what is your firmware?  


I have 2.6.14   .

If you are on 2.6.14 firmware


  I would still dial it back  to my settings.  I still think you have not found your units sweet spot.
But you are much closer to the right setting.  and I know your psu's are saying thank you.  Compare the numbers  bump up a bit down a bit.

Extreme pushing of the sp20e  can always be done if coins jump up to 400 or 500 usd.  if they say under 300 usd be relaxed

[obfuscated]

I'm running 2.6.14 as well.

I'm wondering if lowering the the Max PSU Power for Unit 4 will reduce the temp on that last asic.  For example my settings would looks something like this:

Max PSU Power Unit 1 (70W - 288W)  :  240
Max PSU Power Unit 2 (70W - 288W)  :  240
Max PSU Power Unit 3 (70W - 288W)  :  240
Max PSU Power Unit 4 (70W - 288W)  :  100


Will this help?  Is it safe to do?

[obfuscated]

I should also mention that; occasionally when I restart the SP20 I get the following error:
https://i.imgur.com/LGH4rsg.png

Is this normal?

[mavericklm]

is that loop starting at all? try changing 6pin cables and see if it is the same
if it is the same try disabling individually asic 6 and after that asic 7

[obfuscated]

is that loop starting at all? try changing 6pin cables and see if it is the same
if it is the same try disabling individually asic 6 and after that asic 7

Yes, this only happens occasionally when I restart the miner.  Restarting again clears the issue.  However as I mentioned above, this loop (especially asic 7) runs much hotter than the others.

[mavericklm]

if you bought it less than 3 months ago, i would contact spondoolies

got one myself that 1 loop does not want to start from time to time
another one has problem with only one asic, keeping that loop under 220w seems to be ok.  high temps makes the miner restart itself very badly! because of that asic

[obfuscated]

if you bought it less than 3 months ago, i would contact spondoolies

got one myself that 1 loop does not want to start from time to time
another one has problem with only one asic, keeping that loop under 220w seems to be ok.  high temps makes the miner restart itself very badly! because of that asic

I bought it used