Unofficial Spondoolies SP20 thread - page 13.

philipma1957

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Activity: 4256

Merit: 8551

'The right to privacy matters'

I am leaving the thread open. I don't delete much from any thread I moderate.

Most often I am deleting people that curse and are particularly insulting.

A while back This thread has attracted attention from Miasma. He appears to have an issue with sp-tech. I let the posts go back and forth for a while hoping to have it resolve on its own.

As it does appear sp-tech did sell gear to him. It also appears that 1 piece of gear has a issue. So I let it go on and on and on. My mistake.

Now that Miasma has accused a regular member I had to step in.

Look up notlist3d he has been here a while and not caused a problem….. He lives in the midwest not in Norway.

I myself have a copy villain on this site. I will need to say please don't accuse a person in this thread. Other then me as it is my thread. So far Miasma has not sent a pm to me explaining why he

called out notlist3d

myself on the left as I am a lefty. my evil twin on the right. Notice my avatar is a cake . Most important notice I have 1004 activity level.. Evil twin has 0

notlist3d

legendary

Activity: 1456

Merit: 1000

Quote from: philipma1957 on May 13, 2015, 02:29:08 PM

Quote from: ?? on ??

Quote from: notlist3d on April 26, 2015, 11:38:05 AM

Quote from: ?? on ??

Quote from: Guy Corem on April 21, 2015, 06:16:21 AM

Quote from: Miasma on April 21, 2015, 05:18:34 AM

Quote from: ?? on ??

Quote from: Guy Corem on April 08, 2015, 04:41:33 AM

We take pride of the quality of our units and service yet even our units have their limit, just like any other electronic device.
Our customer service has RMA several units as I'm sure the forum members can verify, however we cannot cover damages that are caused by improper maintenance.
Our team will continue to work with you as best they can to help you out and will be happy to continue doing so in the future.
Regards, Gadi

Wow!!! What an unbelievable claim. I bought 15 SP20Es and I've been trying for over 2 months to get tech support. All I ever get is the run around from Barbara. I have no reason to believe that tech support even exists at Spondoolies-Tech. I wrote detailed emails explaining what I tried. Barbara keeps telling me I have to open a port and let you Skype me because I have 2 DOA SP20Es that have never booted into the user interface. Just what will letting you snoop around my PC tell you about a network device that cannot be recognized by my network Huh

When the 15 SP20Es arrived 6 of them would not hash. I found a cryptic FAQ called "MY UNIT IS NOT RESPONDING AFTER A FIRMWARE UPGRADE. HOW DO I RECOVER IT?" Even though these 6 SP20Es had never booted into their user interface and were not recognized by my network I gave it a try any way. I had to go to 3 shops to find this microSDcard with reader in the photography section and bought it for $19. I installed the image and managed to get 4 of the SP20Es running, although not fully. E.g., some are missing a board "or something" as the ASIC Stats report says:

Code:

2.6.14
Uptime:73146 | FPGA ver:100 | BIST in 19
-----BOARD-0-----
PSU[UNKNOWN]: 0->(247w/247w)[247 247 247] (->247w[247 247 247]) (lim=270) 0c 389GH cooling:0/0xe0
-----BOARD-1-----
PSU[UNKNOWN]: 0->(5w/5w)[5 5 5] (->5w[5 5 5]) (lim=270) 0c 0GH cooling:0/0xe0
-----BOARD-2-----
PSU[UNKNOWN]: 0->(261w/261w)[261 261 261] (->261w[261 261 261]) (lim=270) 0c 401GH cooling:0/0xe0
-----BOARD-3-----
PSU[UNKNOWN]: 0->(195w/195w)[195 195 195] (->195w[195 195 195]) (lim=270) 0c 351GH cooling:0/0xe0
LOOP[0] ON TO:0 (w:6544)
 0: DC2DC/1/:[vlt1:712 vlt2:719(DCl:794 Tl:794 Ul:719) 99W 139A  64c] ASIC:[ 85c (125c) 1010hz(BL:1010) 3263 (E:193) F:0 L:0]
 1: DC2DC/1/:[vlt1:716 vlt2:719(DCl:794 Tl:794 Ul:719) 100W 139A  74c] ASIC:[ 85c (125c) 1010hz(BL:1010) 3281 (E:193) F:0 L:0]
LOOP[1] OFF TO:0 (test serial failed or something)
2: disabled (serial problem)
3: disabled (serial problem)
LOOP[2] ON TO:0 (w:6733)
 4: DC2DC/1/:[vlt1:710 vlt2:719(DCl:794 Tl:794 Ul:719) 106W 148A  71c] ASIC:[115c (125c) 1040hz(BL:1040) 3325 (E:193) F:0 L:0]
 5: DC2DC/1/:[vlt1:714 vlt2:719(DCl:794 Tl:794 Ul:719) 104W 146A  89c] ASIC:[120c (125c) 1040hz(BL:1040) 3408 (E:193) F:0 L:0]
LOOP[3] ON TO:0 (w:5733)
 6: DC2DC/1/:[vlt1:667 vlt2:674(DCl:794 Tl:674 Ul:719) 86W 128A  84c] ASIC:[120c (125c) 960hz(BL: 960) 3018 (E:193) F:0 L:0]
 7: DC2DC/1/:[vlt1:640 vlt2:642(DCl:794 Tl:642 Ul:719) 69W 109A  82c] ASIC:[120c (125c) 860hz(BL: 860) 2715 (E:193) F:1 L:0]

[H:HW:1142Gh (500),DC-W:568,L:0,A:6,MMtmp:0 TMP:(31/31)=>=>=>(41/41 , 68/68)]
Pushed 10 jobs , in HW queue 4 jobs (sw:1, hw:1)!
min:1 wins:19010[this/last min:14/10] bist-fail:256, hw-err:0
leading-zeroes:42 idle promils[s/m]:0/0, rate:699gh/s asic-count:204 (wins:6+8)
wall watts:777
Fan:90, conseq:200
AC2DC BAD: 0 0
R/NR: 1098/0
RTF asics: 0
FET: 0:5 1:5
 2 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

After paying for my order I received this email:

Code:

After a successful burn-in test, we are happy to announce that your units were shipped and are now on their way to you.
The units were shipped with Fedex. Please see attached shipping documents.
A lot of work was put into designing, building, and shipping these units. We believe you will enjoy them very much.
If you have any questions feel free to contact us at [email protected]. 
Best Regards,
Katya Penkar
Sales Operations Manager
Spondoolies-Tech LTD.
Tel.: +972(8)8606636
Fax : +972 (8)8643050
Mobile: +972(54)4882443

So if this email was true and the 15 SP20Es worked when Spondoolies-Tech shipped them then they are so fragile they degrade and die in transit.
Please explain why SP refuses to RMA or refund (1J3p2htyCPucmJ1pNaCamsmKdZBbLwhBy5) my two (2) DOA SP20Es and what to do about the SP20Es with the dead board "or something". Not to mention the 2.5 months of lost production from 2 SP20Es plus a few partially functioning SP20Es.
Order: SO1500241, Your Order: 4364, Customer Number: 101113

Gadi, Why don't you or someone at SP answer me Huh

I have not received one answer to any of my questions or my numerous emails to your company. I provided the PO numbers so you know I'm the one that bought 15 SP20Es directly from SP and have been contacting you for months. It appears you've gone out of business.

Hi Miasma,

The last email correspondence with you that I could find in our system is dated March 31 where Barbara offered to RMA the units but you have not responded.
If you have other tickets open please share them either here or via PM.

I also understand that you were asked multiple times to contact the support team via Skype and were also offered for them to contact you. The tech support team is the only one who can diagnose the unit thoroughly. Were they able to get in touch with you?

Gadi

SpondooliesTech gives BitCoin a bad reputation. Had I paid you with a credit card and you shipped me the two DEAD SP20Es I would have disputed the charge and gotten my money back. But with BitCoin you got paid upfront and just thumb your nose at me. You've ignored me me for months and have never answered a single one of my reasonable questions. You pretend as if there's some way you can diagnose the two DEAD SP20Es via Skype. Why don't you stop lying and tell the truth Huh

You do NOT stand behind your warranty. You lied to me and said you did a sucessful burn-in test before you shipped the 15 SP20Es and yet several of them failed to work out of the box. I had to spend hours reinstalling their firmware images. How does that constitute a sucessful burn-in Huh

Depending on what they do there is a lot they can tell via skype/teamviewer. They can see how the miner reacts, and also they are able to tell you to open it without voiding warranty since they are watching.

I would say give them a chance on Skype, it's far better then paying shipping if they can get them possibly fixed from the Skype session.

Notlist3d, When are you going to repay the money you borrowed from me on BTCjam

I bolded this part in blue , please pm me both notlist3d and Miasma I want to know the truth about this statement.

thread is locked until this statement is proven true or false.

I opened this since notlist3d wants to speak about this accusation.

It appears someone used my username of “Notlist3d” at BTCJam. I am not a member and do not loan or take loans through BTCJam so I was unaware. After looking at it appears the user on BTCJam that is using my username is - https://btcjam.com/users/43568

I am in no way associated with this account. As I have mentioned multiple times I am on a farm in the US. That user mentions from being from Norway. Also not a picture of me.

I have never asked for a loan at any point on here or other sites. If anyone here was affected by the BTCJam user I suggest following up with BTCJam.

In the future if anyone sees a “Notlist3d” and think it is me. Feel free to PM me. I also have a BTC address staked in meta that I can sign with. If you ever need to verify if a “Notlist3d” is me I can do either one of those. I cannot stop others from using my name at other sites, but I can do those two things to help.

I want to thank philipma1957 for pointing out the accusation. And giving me time to look into it.

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

Quote from: ?? on ??

Quote from: notlist3d on April 26, 2015, 11:38:05 AM

Quote from: ?? on ??

Quote from: Guy Corem on April 21, 2015, 06:16:21 AM

Quote from: Miasma on April 21, 2015, 05:18:34 AM

Quote from: ?? on ??

Quote from: Guy Corem on April 08, 2015, 04:41:33 AM

We take pride of the quality of our units and service yet even our units have their limit, just like any other electronic device.
Our customer service has RMA several units as I'm sure the forum members can verify, however we cannot cover damages that are caused by improper maintenance.
Our team will continue to work with you as best they can to help you out and will be happy to continue doing so in the future.
Regards, Gadi

Wow!!! What an unbelievable claim. I bought 15 SP20Es and I've been trying for over 2 months to get tech support. All I ever get is the run around from Barbara. I have no reason to believe that tech support even exists at Spondoolies-Tech. I wrote detailed emails explaining what I tried. Barbara keeps telling me I have to open a port and let you Skype me because I have 2 DOA SP20Es that have never booted into the user interface. Just what will letting you snoop around my PC tell you about a network device that cannot be recognized by my network Huh

When the 15 SP20Es arrived 6 of them would not hash. I found a cryptic FAQ called "MY UNIT IS NOT RESPONDING AFTER A FIRMWARE UPGRADE. HOW DO I RECOVER IT?" Even though these 6 SP20Es had never booted into their user interface and were not recognized by my network I gave it a try any way. I had to go to 3 shops to find this microSDcard with reader in the photography section and bought it for $19. I installed the image and managed to get 4 of the SP20Es running, although not fully. E.g., some are missing a board "or something" as the ASIC Stats report says:

Code:

2.6.14
Uptime:73146 | FPGA ver:100 | BIST in 19
-----BOARD-0-----
PSU[UNKNOWN]: 0->(247w/247w)[247 247 247] (->247w[247 247 247]) (lim=270) 0c 389GH cooling:0/0xe0
-----BOARD-1-----
PSU[UNKNOWN]: 0->(5w/5w)[5 5 5] (->5w[5 5 5]) (lim=270) 0c 0GH cooling:0/0xe0
-----BOARD-2-----
PSU[UNKNOWN]: 0->(261w/261w)[261 261 261] (->261w[261 261 261]) (lim=270) 0c 401GH cooling:0/0xe0
-----BOARD-3-----
PSU[UNKNOWN]: 0->(195w/195w)[195 195 195] (->195w[195 195 195]) (lim=270) 0c 351GH cooling:0/0xe0
LOOP[0] ON TO:0 (w:6544)
 0: DC2DC/1/:[vlt1:712 vlt2:719(DCl:794 Tl:794 Ul:719) 99W 139A  64c] ASIC:[ 85c (125c) 1010hz(BL:1010) 3263 (E:193) F:0 L:0]
 1: DC2DC/1/:[vlt1:716 vlt2:719(DCl:794 Tl:794 Ul:719) 100W 139A  74c] ASIC:[ 85c (125c) 1010hz(BL:1010) 3281 (E:193) F:0 L:0]
LOOP[1] OFF TO:0 (test serial failed or something)
2: disabled (serial problem)
3: disabled (serial problem)
LOOP[2] ON TO:0 (w:6733)
 4: DC2DC/1/:[vlt1:710 vlt2:719(DCl:794 Tl:794 Ul:719) 106W 148A  71c] ASIC:[115c (125c) 1040hz(BL:1040) 3325 (E:193) F:0 L:0]
 5: DC2DC/1/:[vlt1:714 vlt2:719(DCl:794 Tl:794 Ul:719) 104W 146A  89c] ASIC:[120c (125c) 1040hz(BL:1040) 3408 (E:193) F:0 L:0]
LOOP[3] ON TO:0 (w:5733)
 6: DC2DC/1/:[vlt1:667 vlt2:674(DCl:794 Tl:674 Ul:719) 86W 128A  84c] ASIC:[120c (125c) 960hz(BL: 960) 3018 (E:193) F:0 L:0]
 7: DC2DC/1/:[vlt1:640 vlt2:642(DCl:794 Tl:642 Ul:719) 69W 109A  82c] ASIC:[120c (125c) 860hz(BL: 860) 2715 (E:193) F:1 L:0]

[H:HW:1142Gh (500),DC-W:568,L:0,A:6,MMtmp:0 TMP:(31/31)=>=>=>(41/41 , 68/68)]
Pushed 10 jobs , in HW queue 4 jobs (sw:1, hw:1)!
min:1 wins:19010[this/last min:14/10] bist-fail:256, hw-err:0
leading-zeroes:42 idle promils[s/m]:0/0, rate:699gh/s asic-count:204 (wins:6+8)
wall watts:777
Fan:90, conseq:200
AC2DC BAD: 0 0
R/NR: 1098/0
RTF asics: 0
FET: 0:5 1:5
 2 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

After paying for my order I received this email:

Code:

After a successful burn-in test, we are happy to announce that your units were shipped and are now on their way to you.
The units were shipped with Fedex. Please see attached shipping documents.
A lot of work was put into designing, building, and shipping these units. We believe you will enjoy them very much.
If you have any questions feel free to contact us at [email protected]. 
Best Regards,
Katya Penkar
Sales Operations Manager
Spondoolies-Tech LTD.
Tel.: +972(8)8606636
Fax : +972 (8)8643050
Mobile: +972(54)4882443

So if this email was true and the 15 SP20Es worked when Spondoolies-Tech shipped them then they are so fragile they degrade and die in transit.
Please explain why SP refuses to RMA or refund (1J3p2htyCPucmJ1pNaCamsmKdZBbLwhBy5) my two (2) DOA SP20Es and what to do about the SP20Es with the dead board "or something". Not to mention the 2.5 months of lost production from 2 SP20Es plus a few partially functioning SP20Es.
Order: SO1500241, Your Order: 4364, Customer Number: 101113

Gadi, Why don't you or someone at SP answer me Huh

I have not received one answer to any of my questions or my numerous emails to your company. I provided the PO numbers so you know I'm the one that bought 15 SP20Es directly from SP and have been contacting you for months. It appears you've gone out of business.

Hi Miasma,

The last email correspondence with you that I could find in our system is dated March 31 where Barbara offered to RMA the units but you have not responded.
If you have other tickets open please share them either here or via PM.

I also understand that you were asked multiple times to contact the support team via Skype and were also offered for them to contact you. The tech support team is the only one who can diagnose the unit thoroughly. Were they able to get in touch with you?

Gadi

SpondooliesTech gives BitCoin a bad reputation. Had I paid you with a credit card and you shipped me the two DEAD SP20Es I would have disputed the charge and gotten my money back. But with BitCoin you got paid upfront and just thumb your nose at me. You've ignored me me for months and have never answered a single one of my reasonable questions. You pretend as if there's some way you can diagnose the two DEAD SP20Es via Skype. Why don't you stop lying and tell the truth Huh

You do NOT stand behind your warranty. You lied to me and said you did a sucessful burn-in test before you shipped the 15 SP20Es and yet several of them failed to work out of the box. I had to spend hours reinstalling their firmware images. How does that constitute a sucessful burn-in Huh

Depending on what they do there is a lot they can tell via skype/teamviewer. They can see how the miner reacts, and also they are able to tell you to open it without voiding warranty since they are watching.

I would say give them a chance on Skype, it's far better then paying shipping if they can get them possibly fixed from the Skype session.

Notlist3d, When are you going to repay the money you borrowed from me on BTCjam

I bolded this part in blue , please pm me both notlist3d and Miasma I want to know the truth about this statement.

thread is locked until this statement is proven true or false.

I opened this since notlist3d wants to speak about this accusation.

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

Quote from: Biodom on May 06, 2015, 01:42:54 PM

What you guys try to do when one particular ASIC in SP20 is close to overheating?
I hate to change my settings since it works great for the other seven.
in fact, the second ASIC in the same loop shows 85C, but the one in question sometimes bumps to 120C. I tried to limit power to that loop, but it has a limited effect.
Did anyone tried to lower the upper voltage (this would affect all ASICS, so i am kind of hesitant) or lower voltage for one loop successfully to cool down hot outlier ASIC?
Of course, i can just disable this one and boost power to the other seven to get close on hashing, but it would be more drastic.
did anyone also try to clean the machine inside? does this help?

if it can be opened a thermal pad on the 1 chip. but IIRC the heatsink is glued down

mavericklm

hero member

Activity: 742

Merit: 500

maybe open the miner and inspect the cooler?

the aluminium radiator are barely pushed down on the asics....

Biodom

legendary

Activity: 3892

Merit: 4331

What you guys try to do when one particular ASIC in SP20 is close to overheating?
I hate to change my settings since it works great for the other seven.
in fact, the second ASIC in the same loop shows 85C, but the one in question sometimes bumps to 120C. I tried to limit power to that loop, but it has a limited effect.
Did anyone tried to lower the upper voltage (this would affect all ASICS, so i am kind of hesitant) or lower voltage for one loop successfully to cool down hot outlier ASIC?
Of course, i can just disable this one and boost power to the other seven to get close on hashing, but it would be more drastic.
did anyone also try to clean the machine inside? does this help?

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

Quote from: maracuchoff on May 03, 2015, 01:12:08 PM

hello, someone could help me with this? It is my sp20, huba power failure, annex the following image
http://postimg.org/image/ewg9m1xi1/

very often a bad pcie cable .

also check all pcie cables are tight on the psu side and on the sp20 side.

what is your psu make and model?

maracuchoff

newbie

Activity: 42

Merit: 0

hello, someone could help me with this? It is my sp20, huba power failure, annex the following image
http://postimg.org/image/ewg9m1xi1/

Bicknellski

hero member

Activity: 924

Merit: 1000

Quote from: alh on May 01, 2015, 03:21:09 PM

One small item of note. While I completely agree that 4 underclocked SP20's are the way to go, Phil's "open door" picture might be a shade misleading. At the time that picture was taken, I'll bet the air temp outside was 5C or less. It's not obvious to me exactly how to best cool a miner when the incoming air is 35C. I get the exhaust plan and all that, but you can't get low temps when you start with 35C air.

Dig a trench and bury a pipe and pull the air into your space vent it out upper window. If you have the space to do that that is and vaulted type ceiling with a window higher in the vaulted space.

alh

legendary

Activity: 1846

Merit: 1052

Quote from: ?? on ??

So it would be 4 sp20 + 2 evga 1300w.

it would made 1100 ghz * 4 = 334 usd per month more or less.

4 sp20 + 2 evga 1300 = 2500usd more or less. I could see the ROI in 8 months more or less.

What do you think about this calculation?

Other thing, with this raid, how much KW/h do you think it could consume by hour?

Thanks

Think about it for a minute. Two 1300W power supplies are 2600W. That's 2.6 KW. Run it for an hour, and you have used 2.6KWh.

In your ROI calculations, have you taken into account any possible difficulty adjustments that will likely happen over the next 8 months? While the last 60 days have been relatively "quiet" in terms of difficulty changes, that hasn't always been the case. If you aren't familiar with difficulty adjustments, then read up on them. Every 2016 blocks, the Bitcoins "network" adjusts the difficulty to try and maintain a steady pace of about 14 days to produce those 2016 blocks.If you look back at 2014 for example you can easily find an 8 month period where the difficult adjustment in total was 250%. That means that during your 8th month you are only effectively hashing at 40% of what your were hashing during month 1.

The bitcoinwisdom.com website has the list of pash difficulty adjustments for at least a year. Some were pretty brutal in 2014 (i.e. over 25% in one jump).

It's important that you have a complete picture before you plunk down $2500 on your "money printing" hardware. You MIGHT break even in 8 months. Don't be surprised if you don't.

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

Quote from: alh on May 01, 2015, 03:21:09 PM

One small item of note. While I completely agree that 4 underclocked SP20's are the way to go, Phil's "open door" picture might be a shade misleading. At the time that picture was taken, I'll bet the air temp outside was 5C or less. It's not obvious to me exactly how to best cool a miner when the incoming air is 35C. I get the exhaust plan and all that, but you can't get low temps when you start with 35C air.

My temps ranged from 0 f to 70 f

or -18c to 22 c

At 70 f = 22 c this was still good for cooling.

I have mined in summers and the attached garage with the door open does not work well.

But and here is a big but : In my house the first floor is kind of a partial walk out basement. So the garage side does not have a man-made hill of dirt but the other side does. So central air 1 zone system means a really cold 1st floor.

So I shut the back door of the garage and I can run up to 2-2.5k of gear. Then the basement/first floor ends up comfortable matching the top floor of the home temp wise.

notlist3d

legendary

Activity: 1456

Merit: 1000

Quote from: alh on May 01, 2015, 03:21:09 PM

One small item of note. While I completely agree that 4 underclocked SP20's are the way to go, Phil's "open door" picture might be a shade misleading. At the time that picture was taken, I'll bet the air temp outside was 5C or less. It's not obvious to me exactly how to best cool a miner when the incoming air is 35C. I get the exhaust plan and all that, but you can't get low temps when you start with 35C air.

No it obviously is a winter photo. During the summer that would not be a option. In most houses you would have AC escaping outside.

Winter is much easier mining then summer. Much more enjoyable.

alh

legendary

Activity: 1846

Merit: 1052

One small item of note. While I completely agree that 4 underclocked SP20's are the way to go, Phil's "open door" picture might be a shade misleading. At the time that picture was taken, I'll bet the air temp outside was 5C or less. It's not obvious to me exactly how to best cool a miner when the incoming air is 35C. I get the exhaust plan and all that, but you can't get low temps when you start with 35C air.

notlist3d

legendary

Activity: 1456

Merit: 1000

Quote from: ?? on ??

Quote from: philipma1957 on May 01, 2015, 05:10:26 AM

Quote from: ?? on ??

How much time do you think SP20 could do a good work? 2017? or less?

because 4 machines + 4 Power supply (EVGA 1300) cost 2800 usd more or less. and it will give you 400 per month running at 1.4 th each one (5.6 th). so you will get your money back in 8 months, suppose you have cheap energy. Am I right?

No you are wrong as you do not need 4 evga 1300 to run them.

Under clock them to 1100gh each and you can run 2 of them on 1 evga 1300 lowers your buy in price by 300-400 usd

you use .52 watts a gh at the wall

if you push them like a mofo to 1500-1600gh you need a evga for each one and you spend 1200 watts to get say 1600gh

so 2 evgas using 2300watts runs 4 doing 4400gh

or 4 evga using 4800watts runs 4 doing 6400gh

the first case is almost always the better way to run sp20's..

in the second case

the power efficiency is .75 watts a gh and you purchased 2 extra evga's . The blow your gear up or burn your gear up risk is much higher.

and you start out 300 to 4oo usd in the hole due to 2 extra psus.

One last thing the extra 2500 watts spent causes close to 10,000 btu 's of extra heat. So cooling is harder to do.

Thanks for your answer.

If in the second case you put an air condition near that raid, what would you think the result could be?

Just like philipma1957 said the worst thing you could do is use AC to cool down your miners. You will be paying way to much to get them cool.

It's best done with regular fan's and an exhaust. It's a little tricky to get setup right, but ac is not the way to go.

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

Quote from: ?? on ??

Quote from: philipma1957 on May 01, 2015, 05:10:26 AM

Quote from: ?? on ??

How much time do you think SP20 could do a good work? 2017? or less?

because 4 machines + 4 Power supply (EVGA 1300) cost 2800 usd more or less. and it will give you 400 per month running at 1.4 th each one (5.6 th). so you will get your money back in 8 months, suppose you have cheap energy. Am I right?

No you are wrong as you do not need 4 evga 1300 to run them.

Under clock them to 1100gh each and you can run 2 of them on 1 evga 1300 lowers your buy in price by 300-400 usd

you use .52 watts a gh at the wall

if you push them like a mofo to 1500-1600gh you need a evga for each one and you spend 1200 watts to get say 1600gh

so 2 evgas using 2300watts runs 4 doing 4400gh

or 4 evga using 4800watts runs 4 doing 6400gh

the first case is almost always the better way to run sp20's..

in the second case

the power efficiency is .75 watts a gh and you purchased 2 extra evga's . The blow your gear up or burn your gear up risk is much higher.

and you start out 300 to 400 usd in the hole due to 2 extra psus.

One last thing the extra 2500 watts spent causes close to 10,000 btu 's of extra heat. So cooling is harder to do.

Thanks for your answer.

If in the second case you put an air condition near that raid, what would you think the result could be?

An insane waste of power in terms of watts.

if you have a 4 pack of units maxed pulling 4800 watts vs a pack of units cruising pulling 2300 watts.

I only mentioned the extra 2500 watts = 10000 btus of heat you also have close to 10000 btus from the first watts.

so a better way to write it is:

20000 btus

vs 10000 btus

you want to vent the heat out of the room with fans not ac the heat away.

here is a picture of one of the cheapest ways to cool a room with 6 sp20's

https://bitcointalksearch.org/topic/m.9741334

Here are some more photos from link above . movers blanket lowers sound a lot. note open garage door

third shot white blanket is fire proof I need a few pieces of sheet metal to feel really safe

fourth

clamp stops gear from falling stack is (s-3) sp20 sp20 sp20 sp20 (s-3)

fifth

some hot air tries to come back into garage those fans blow it out

sixth
fire proof material protects a board also fan brings in cooler air------------------------------------ This is a 4 month winter setup

seventh sound is reduced a lot all fans are 50 or 60 this garage is attached to my home and basement den for Home Theater. I can watch tv and movies more important my wife thinks it is not crazy loud

philipma1957

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Quote from: ?? on ??

How much time do you think SP20 could do a good work? 2017? or less?

because 4 machines + 4 Power supply (EVGA 1300) cost 2800 usd more or less. and it will give you 400 per month running at 1.4 th each one (5.6 th). so you will get your money back in 8 months, suppose you have cheap energy. Am I right?

No you are wrong as you do not need 4 evga 1300 to run them.

Under clock them to 1100gh each and you can run 2 of them on 1 evga 1300 lowers your buy in price by 300-400 usd

you use .52 watts a gh at the wall

if you push them like a mofo to 1500-1600gh you need a evga for each one and you spend 1200 watts to get say 1600gh

so 2 evgas using 2300watts runs 4 doing 4400gh

or 4 evga using 4800watts runs 4 doing 6400gh

the first case is almost always the better way to run sp20's..

in the second case

the power efficiency is .75 watts a gh and you purchased 2 extra evga's . The blow your gear up or burn your gear up risk is much higher.

and you start out 300 to 4oo usd in the hole due to 2 extra psus.

One last thing the extra 2500 watts spent causes close to 10,000 btu 's of extra heat. So cooling is harder to do.

alh

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Quote from: ?? on ??

How much time do you think SP20 could do a good work? 2017? or less?

because 4 machines + 4 Power supply (EVGA 1300) cost 2800 usd more or less. and it will give you 400 per month running at 1.4 th each one (5.6 th). so you will get your money back in 8 months, suppose you have cheap energy. Am I right?

Just using $.05/Kwh takes about $130 of that $400 in terms of raw electricity consumption for the mining hardware. That's a VERY favorable electrical rate. Gives you an operating profit of $270 per month. That assumes that there are no upward difficulty adjustments during the 10 months for payoff. At the end, you'll still have residual value in the power supplies, probably much less in the SP20's.

Yes it can work. You just won't get "rich" doing it (my definition of "rich").

padrino

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Quote from: Biodom on April 28, 2015, 08:16:39 PM

Quote from: padrino on April 28, 2015, 08:12:03 PM

Quote from: Biodom on April 28, 2015, 08:02:33 PM

Good luck to Spond; I believe that they will need it.

A thought occured to me: everybody (Spond, Bitfury, KnC) want to call themselves transaction validators, however, I surmise (without marketing research behind this statement) that thousands of miners are the driving force of transactions because they do transact with bitcoin that they mine and use it for other means.
If "small" miners disappear, only to be replaced by four large companies (Bitfury, KNC, Bitmain and Spond), then whose transactions these four will be processing?
Between each other?
They will basically diminish the interest of those who are most interested now and replace it with WHAT? Marketing?
If at the end of the day bitcoin is just another debit/credit card and these four are processors, why would I need that? I have a bunch of plastic already.

While centralization is not a good thing, it's inevitable and those small miners pushing and pushing, and paying premiums for the next big thing drove themselves out of the market...

If you and I use Bitcoin and neither of us mine we need miners to validate those transactions, how much control a single entity has on a given percentage of the network is the concern, if it's a handful of companies it does raise the risk if there is a hint of collusion between those companies..

The above tells me you want a free market but not the inevitable consequences of that free market..

well, once there are ONLY four companies, it's not a free market anymore, more like oligopoly.
Regarding it being inevitable, I am not aware of such economic law. Personally, I would very much prefer a more distributed system.

My main point was not about centralization per se, but about a supposition that once small miners are driven out, 4 big ones will have little transactions to process, unless they do it mostly between each other, which would be artificial, of course.

I think maybe I misunderstood your point, and I think it's sourced from a misunderstanding of transaction processing..

Every Bitcoin transaction is processed, those 4 companies don't process their own, but everyone using Bitcoin, you are implying once small miners are driven out the volume of transactions go down. I would submit that small miners are already a small subset of transactions, I know many more people using Bitcoin that have never mined, than people that mine and use Bitcoin..

Biodom

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Quote from: padrino on April 28, 2015, 08:12:03 PM

Quote from: Biodom on April 28, 2015, 08:02:33 PM

Good luck to Spond; I believe that they will need it.

A thought occured to me: everybody (Spond, Bitfury, KnC) want to call themselves transaction validators, however, I surmise (without marketing research behind this statement) that thousands of miners are the driving force of transactions because they do transact with bitcoin that they mine and use it for other means.
If "small" miners disappear, only to be replaced by four large companies (Bitfury, KNC, Bitmain and Spond), then whose transactions these four will be processing?
Between each other?
They will basically diminish the interest of those who are most interested now and replace it with WHAT? Marketing?
If at the end of the day bitcoin is just another debit/credit card and these four are processors, why would I need that? I have a bunch of plastic already.

While centralization is not a good thing, it's inevitable and those small miners pushing and pushing, and paying premiums for the next big thing drove themselves out of the market...

If you and I use Bitcoin and neither of us mine we need miners to validate those transactions, how much control a single entity has on a given percentage of the network is the concern, if it's a handful of companies it does raise the risk if there is a hint of collusion between those companies..

The above tells me you want a free market but not the inevitable consequences of that free market..

well, once there are ONLY four companies, it's not a free market anymore, more like oligopoly.
Regarding it being inevitable, I am not aware of such economic law. Personally, I would very much prefer a more distributed system.

My main point was not about centralization per se, but about a supposition that once small miners are driven out, 4 big ones will have little transactions to process, unless they do it mostly between each other, which would be artificial, of course.

padrino

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Activity: 1428

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Quote from: Biodom on April 28, 2015, 08:02:33 PM

Good luck to Spond; I believe that they will need it.

A thought occured to me: everybody (Spond, Bitfury, KnC) want to call themselves transaction validators, however, I surmise (without marketing research behind this statement) that thousands of miners are the driving force of transactions because they do transact with bitcoin that they mine and use it for other means.
If "small" miners disappear, only to be replaced by four large companies (Bitfury, KNC, Bitmain and Spond), then whose transactions these four will be processing?
Between each other?
They will basically diminish the interest of those who are most interested now and replace it with WHAT? Marketing?
If at the end of the day bitcoin is just another debit/credit card and these four are processors, why would I need that? I have a bunch of plastic already.

While centralization is not a good thing, it's inevitable and those small miners pushing and pushing, and paying premiums for the next big thing drove themselves out of the market...

If you and I use Bitcoin and neither of us mine we need miners to validate those transactions, how much control a single entity has on a given percentage of the network is the concern, if it's a handful of companies it does raise the risk if there is a hint of collusion between those companies..

The above tells me you want a free market but not the inevitable consequences of that free market..

Topic: Unofficial Spondoolies SP20 thread - page 13. (Read 126198 times)