Unofficial Spondoolies SP20 thread - page 24.

alh

legendary

Activity: 1846

Merit: 1052

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

legendary

Activity: 3234

Merit: 1221

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

obfuscated

newbie

Activity: 38

Merit: 0

Quote from: philipma1957 on March 03, 2015, 03:23:26 PM

Quote from: obfuscated on March 03, 2015, 03:18:59 PM

Quote from: philipma1957 on March 03, 2015, 03:11:34 PM

Quote from: obfuscated on March 03, 2015, 03:07:52 PM

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

philipma1957

legendary

Activity: 4326

Merit: 8950

'The right to privacy matters'

Quote from: obfuscated on March 03, 2015, 03:18:59 PM

Quote from: philipma1957 on March 03, 2015, 03:11:34 PM

Quote from: obfuscated on March 03, 2015, 03:07:52 PM

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

philipma1957

legendary

Activity: 4326

Merit: 8950

'The right to privacy matters'

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

obfuscated

newbie

Activity: 38

Merit: 0

Quote from: philipma1957 on March 03, 2015, 03:11:34 PM

Quote from: obfuscated on March 03, 2015, 03:07:52 PM

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

legendary

Activity: 4326

Merit: 8950

'The right to privacy matters'

Quote from: obfuscated on March 03, 2015, 03:07:52 PM

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

newbie

Activity: 38

Merit: 0

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

legendary

Activity: 4326

Merit: 8950

'The right to privacy matters'

Quote from: Finksy on March 03, 2015, 02:45:25 PM

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.

Finksy

legendary

Activity: 1022

Merit: 1003

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

legendary

Activity: 4326

Merit: 8950

'The right to privacy matters'

@ op match my settings and get back with your numbers

Finksy

legendary

Activity: 1022

Merit: 1003

Bump the fan up to 100, and lower the wattage on PSU's 2 and 4 to under what they are running at now in your ASIC stats page (above the clip you have posted is what they are actually drawing per loop) Also make sure you are on current firmware.

What PSU and cables are you using?

philipma1957

legendary

Activity: 4326

Merit: 8950

'The right to privacy matters'

I can't Captain I need more power. (Scotty)

Please lower the settings.

you have 1484 gh and 1036 watts

look at my gear 1351 gh and 835 watts

see the hash rate

see the temps the watts

see the settings

obfuscated

newbie

Activity: 38

Merit: 0

Hey guys,

This is my first post! Been lurking the forum and I appreciate all the information. Was hoping someone might be able to answer a couple questions.

I recently acquired a used SP20E(?) Not sure what the E stands for or if it makes a difference in terms of configuration/settings.

I don't pay for electricity so I'm trying to (safely) get as much hash power as possible.

The ASICS on the last loop (loop 3) get hotter than the others (they are almost always running at 120C). Does it make sense to lower the 'Max PSU Power' for this loop? How would you configure your SP20 if you didn't pay for power?

Here are my current settings:

http://i.imgur.com/uq7VrDs.png

http://i.imgur.com/0skSt9W.png

Thanks in advance!

Marvell1

legendary

Activity: 2408

Merit: 1102

Leading Crypto Sports Betting & Casino Platform

Quote from: Miasma on March 03, 2015, 12:09:51 PM

Quote from: notlist3d on February 27, 2015, 12:38:54 PM

One of the biggest things is quality. The SP20's are rock solid with the metal case and I love them. I was running full blast since i got them. Now I have underclocked them. It is impressive to have such a wide range of power.

Also with them I never have had to babysit. It is pretty much set and forget until I want to change pools.

Are you same notlist3d that stole money from me at BTCjam.com Huh

https://btcjam.com/users/43568
https://btcjam.com/listings/23012-upgrade-mining-capacity
Funny that you brag about having miners running and you refuse to repay the money that bought them for you.

SO many crooks in crypto , its amazing we can even get anything done these days. Personally im on the self sufficent route now
-no cloud mining
-no group buys (most likely)
-no hosted hardware (if i can't run it forget it)

only thing i will do is order miners from bitmain and other trusted companies that have been in business for a few years or so.
Crypto is full of crooks its like it attracts the worst types of individuals.

Miasma

member

Activity: 110

Merit: 10

Quote from: notlist3d on February 27, 2015, 12:38:54 PM

One of the biggest things is quality. The SP20's are rock solid with the metal case and I love them. I was running full blast since i got them. Now I have underclocked them. It is impressive to have such a wide range of power.

Also with them I never have had to babysit. It is pretty much set and forget until I want to change pools.

Are you same notlist3d that stole money from me at BTCjam.com Huh

https://btcjam.com/users/43568
https://btcjam.com/listings/23012-upgrade-mining-capacity
Funny that you brag about having miners running and you refuse to repay the money that bought them for you.

Biodom

legendary

Activity: 3892

Merit: 4331

Quote from: bigblind on March 03, 2015, 06:20:33 AM

posted it already in the Spondoolies-Tech Thread, but here again:

How do you connect your EVGA Supernovas to 2x Sp20s? It has only 6 VGA Connectors.

EVGA has 6 cords, but 8 connectors (two cords are branched).
Phil has a scheme, but, actually, powering one machine with four connectors (originated from two branched cords) and another machine with four cords works fine, albeit I only tried it on S5, NOT SP20. I don't see why it wouldn't work on SP20, providing you are doing an extreme downclock to ~600w/machine.
I am powering SP20 downclocked to ~670w using CX750W , which has two branched cords, and it is fine so far ( although I do have some airflow toward the connectors from the external Vornado fan).

philipma1957

legendary

Activity: 4326

Merit: 8950

'The right to privacy matters'

I answered your question on the other thread.

bigblind

sr. member

Activity: 378

Merit: 252

posted it already in the Spondoolies-Tech Thread, but here again:

Can anybody tell what just happened?
I just checked my miners and saw a lower Hashrate on one of them. One of the ASIC Loops seemed down.

Checked the cables and saw this:

As you can see one of the Pins seemed to have burned?! The ASIC hasnt been running for a week. It was even underclocked. (to about 620watts).

EDIT::

A switch of the cables seems to have fixed it.
It was a 2x8 Pin cable, powering 2x 6 Pins on the SP20. Might it be that the cable itself has been overloaded?

How do you connect your EVGA Supernovas to 2x Sp20s? It has only 6 VGA Connectors.

Finksy

legendary

Activity: 1022

Merit: 1003

Quote from: Digitalmocking on March 02, 2015, 05:21:16 PM

Quote from: Finksy on March 01, 2015, 07:18:05 PM

Or if you want to save a ton of money over the EVGA's you can use 2880w server Psu's w/ boards, that are more efficient and less than half the price...

Just throwing it out there. For my SP20's I shoot for around 1400-1450 Gh with .67 starting Volts and ~225w per loop. Able to run 3x SP20's per PSU.

Finksy, do you have a link for the PSU/boards? I'd love to just save the space as much as anything else, and I can sell my EVGA PSUs without issue.

It's in my signature, and here: https://bitcointalksearch.org/topic/ibm-2880w-psubreakout-boards-new-package-deals-for-t9s9-a7-966135

If you want to save some money and have the time, PSU's do pop up on e-Bay for cheaper than what I'm selling them for, and shipping will be cheaper if you're in the US (mine ship from Canada). Remember that these PSU's are loud (slightly louder than an SP20 w/ fans on 100), and require 240V.

Topic: Unofficial Spondoolies SP20 thread - page 24. (Read 126251 times)