Topic: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs - page 616. (Read 1260363 times)

Quote from: seriouscoin on May 22, 2014, 01:33:30 PM

Quote from: Guy Corem on May 22, 2014, 07:37:41 PM

When ambient is at an acceptable temperature, you just need ventilation. It doesn't matter how much heat you put into the air if you can simply substitute that air with ambient temp air.

You think if even is +40C?

Yep.

It doesn't matter how fast you wee into a cup, if I keep replacing your cup with an empty cup, you'll never fill it.

not quite a correct analogy.

Ventilation does not prevent turbulence. Air can be travel inefficiently that hot air got suck back into the miner .
You need to build a ducting system right at the rack. Thats the only way to control direction of air. Remember folks, you need ventilation and air direction control to be effective.

You don't if you have floor to ceiling double ended ventilation. Ie a door on one side and a door on the other....

I have my miners in my garage and this will be the first hot weekend of the summer. I'm hoping that by opening my garage door a few times a day I can recycle the air. Its north facing and thats where the cool wind comes from. If that doesnt work I have a 12000 BTC portable AC unit ready to go. Would rather not use it though.

That portable AC unit won't do anything in your garage. Once your garage's ambient temperature starts to increase well into the 80's and lower 90's there isn't much you can do. And since most garage's aren't insulated (why would they be) they are hard to cool and hard to keep warm. They aren't designed to be. Notice no videos with these powered on? There's really no where you can put one in any house and not hear it.

Its an attached double garage that is insulated since im in canada. I think it will work I'll place it right near the miners I take and ezhaust through the wall to the outside. Right now im running 21 S1's and I cant hear them inside. 1 SP10 cant make that much difference. Im already using loud server psu for some of my ants.

damn for a sec i thought you said 21 SP10s!!! I wanted to know what kind of garage.... hehehe until i realised ....

What is your total power consumption right now?

8400 watts spread between 2 30amp 240v circuits each with their own 30 amp pdu. I would like to get more SP10's going but will need to sell some ant first. Need to keep power consumption under 11600 kw. This is already crazy and I have to draw the line somewhere!

seriouscoin

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Activity: 658

Merit: 500

Quote from: seriouscoin on May 22, 2014, 07:20:12 PM

... how is the exhaust air temperature measured? where is the sensor located and what type of sensor is it? (possible the name and model ) I assume the front/back temp are intake/exhaust air temp ...

It's the weekend in Israel, it might take few days to answer

Understood,

Btw, what is the command line for checking stats of the miner?

seriouscoin

hero member

Activity: 658

Merit: 500

Quote from: wpgdeez on May 22, 2014, 07:46:35 PM

Quote from: seriouscoin on May 22, 2014, 01:33:30 PM

When ambient is at an acceptable temperature, you just need ventilation. It doesn't matter how much heat you put into the air if you can simply substitute that air with ambient temp air.

You think if even is +40C?

Yep.

It doesn't matter how fast you wee into a cup, if I keep replacing your cup with an empty cup, you'll never fill it.

not quite a correct analogy.

Ventilation does not prevent turbulence. Air can be travel inefficiently that hot air got suck back into the miner .
You need to build a ducting system right at the rack. Thats the only way to control direction of air. Remember folks, you need ventilation and air direction control to be effective.

You don't if you have floor to ceiling double ended ventilation. Ie a door on one side and a door on the other....

I have my miners in my garage and this will be the first hot weekend of the summer. I'm hoping that by opening my garage door a few times a day I can recycle the air. Its north facing and thats where the cool wind comes from. If that doesnt work I have a 12000 BTC portable AC unit ready to go. Would rather not use it though.

That portable AC unit won't do anything in your garage. Once your garage's ambient temperature starts to increase well into the 80's and lower 90's there isn't much you can do. And since most garage's aren't insulated (why would they be) they are hard to cool and hard to keep warm. They aren't designed to be. Notice no videos with these powered on? There's really no where you can put one in any house and not hear it.

Its an attached double garage that is insulated since im in canada. I think it will work I'll place it right near the miners I take and ezhaust through the wall to the outside. Right now im running 21 S1's and I cant hear them inside. 1 SP10 cant make that much difference. Im already using loud server psu for some of my ants.

damn for a sec i thought you said 21 SP10s!!! I wanted to know what kind of garage.... hehehe until i realised ....

What is your total power consumption right now?

wpgdeez

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Activity: 728

Merit: 500

Quote from: seriouscoin on May 22, 2014, 01:33:30 PM

Quote from: seriouscoin on May 22, 2014, 07:20:12 PM

When ambient is at an acceptable temperature, you just need ventilation. It doesn't matter how much heat you put into the air if you can simply substitute that air with ambient temp air.

You think if even is +40C?

Yep.

It doesn't matter how fast you wee into a cup, if I keep replacing your cup with an empty cup, you'll never fill it.

not quite a correct analogy.

Ventilation does not prevent turbulence. Air can be travel inefficiently that hot air got suck back into the miner .
You need to build a ducting system right at the rack. Thats the only way to control direction of air. Remember folks, you need ventilation and air direction control to be effective.

You don't if you have floor to ceiling double ended ventilation. Ie a door on one side and a door on the other....

I have my miners in my garage and this will be the first hot weekend of the summer. I'm hoping that by opening my garage door a few times a day I can recycle the air. Its north facing and thats where the cool wind comes from. If that doesnt work I have a 12000 BTC portable AC unit ready to go. Would rather not use it though.

That portable AC unit won't do anything in your garage. Once your garage's ambient temperature starts to increase well into the 80's and lower 90's there isn't much you can do. And since most garage's aren't insulated (why would they be) they are hard to cool and hard to keep warm. They aren't designed to be. Notice no videos with these powered on? There's really no where you can put one in any house and not hear it.

Its an attached double garage that is insulated since im in canada. I think it will work I'll place it right near the miners I take and ezhaust through the wall to the outside. Right now im running 21 S1's and I cant hear them inside. 1 SP10 cant make that much difference. Im already using loud server psu for some of my ants.

Guy Corem

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Activity: 1414

Merit: 1051

Spondoolies, Beam & DAGlabs

... how is the exhaust air temperature measured? where is the sensor located and what type of sensor is it? (possible the name and model ) I assume the front/back temp are intake/exhaust air temp ...

It's the weekend in Israel, it might take few days to answer

Guy Corem

donator

Activity: 1414

Merit: 1051

Spondoolies, Beam & DAGlabs

Quote from: wpgdeez on May 22, 2014, 07:20:25 PM

Does that mean that the May batch is from the same wafer as the April batch just a less optimal spot closer to the edges rather than in the middle?

No. The two May batches are from the same wafers lot, different from March and April.

seriouscoin

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Activity: 658

Merit: 500

Quote from: seriouscoin on May 22, 2014, 01:33:30 PM

When ambient is at an acceptable temperature, you just need ventilation. It doesn't matter how much heat you put into the air if you can simply substitute that air with ambient temp air.

You think if even is +40C?

Yep.

It doesn't matter how fast you wee into a cup, if I keep replacing your cup with an empty cup, you'll never fill it.

not quite a correct analogy.

Ventilation does not prevent turbulence. Air can be travel inefficiently that hot air got suck back into the miner .
You need to build a ducting system right at the rack. Thats the only way to control direction of air. Remember folks, you need ventilation and air direction control to be effective.

You don't if you have floor to ceiling double ended ventilation. Ie a door on one side and a door on the other....

I have my miners in my garage and this will be the first hot weekend of the summer. I'm hoping that by opening my garage door a few times a day I can recycle the air. Its north facing and thats where the cool wind comes from. If that doesnt work I have a 12000 BTC portable AC unit ready to go. Would rather not use it though.

That portable AC unit won't do anything in your garage. Once your garage's ambient temperature starts to increase well into the 80's and lower 90's there isn't much you can do. And since most garage's aren't insulated (why would they be) they are hard to cool and hard to keep warm. They aren't designed to be. Notice no videos with these powered on? There's really no where you can put one in any house and not hear it.

ehhh thats why they have BTU rating. Its meant to cool ambient air.

12000btu is plenty for 1.5kw. However if you have multiple SP10s.... you will have a problem.

opentoe

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Activity: 1274

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Personal text my ass....

Quote from: seriouscoin on May 22, 2014, 01:33:30 PM

Quote from: Guy Corem on May 22, 2014, 07:05:35 PM

When ambient is at an acceptable temperature, you just need ventilation. It doesn't matter how much heat you put into the air if you can simply substitute that air with ambient temp air.

You think if even is +40C?

Yep.

It doesn't matter how fast you wee into a cup, if I keep replacing your cup with an empty cup, you'll never fill it.

not quite a correct analogy.

Ventilation does not prevent turbulence. Air can be travel inefficiently that hot air got suck back into the miner .
You need to build a ducting system right at the rack. Thats the only way to control direction of air. Remember folks, you need ventilation and air direction control to be effective.

You don't if you have floor to ceiling double ended ventilation. Ie a door on one side and a door on the other....

I have my miners in my garage and this will be the first hot weekend of the summer. I'm hoping that by opening my garage door a few times a day I can recycle the air. Its north facing and thats where the cool wind comes from. If that doesnt work I have a 12000 BTC portable AC unit ready to go. Would rather not use it though.

That portable AC unit won't do anything in your garage. Once your garage's ambient temperature starts to increase well into the 80's and lower 90's there isn't much you can do. And since most garage's aren't insulated (why would they be) they are hard to cool and hard to keep warm. They aren't designed to be. Notice no videos with these powered on? There's really no where you can put one in any house and not hear it.

wpgdeez

hero member

Activity: 728

Merit: 500

Quote from: dogie on May 22, 2014, 06:37:55 PM

Quote from: QuiveringGibbage on May 22, 2014, 05:38:41 PM

Quote from: Guy Corem on May 22, 2014, 07:05:35 PM

No, that is super super max. Click on each of the presets then advanced and take a look at what each of those modes tries to set for an idea of what is going on.

that's "super super max." is what I am trying to point out. SP's document states "Default = 790mv" which I believe is incorrect. It should read Default = 683mv.

Please correct me if I am wrong

Cheers,
QG

This is the maximal voltage that the miner is *allowed* to reach in its dynamic scaling. Setting to 790mv is practically unlimited, it will stop somewhere between 670 and 710. depending on the temperature and the corner of the ASICs. If you want to make the miner more efficient (but less productive) you can set it to 660, 640 or even 600. I would not go under 580mv - some ASICs start to fail unless if you got a fast corner (but we were not lucky with our ASIC corners lately - only first batch can handle 550mv).
So far best configuration for first batch (April) is start-voltage:660, max-voltage:790, for second batch (early May) start-voltage:680, max-voltage:790.
I am working on making the scaling efficient on our latest batch (late May), hope to have results after the weekend.

What causes the variation between batches?

Normal ASIC production variations.
First batch was typical corner (middle of the bell shape curve)
Second and third batches were slow corner

All the miners will be within the 1.4 THs +- 10% published spec, hopefully on the plus side

Does that mean that the May batch is from the same wafer as the April batch just a less optimal spot closer to the edges rather than in the middle?

seriouscoin

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Activity: 658

Merit: 500

Quote from: dogie on May 22, 2014, 06:37:55 PM

Quote from: QuiveringGibbage on May 22, 2014, 05:38:41 PM

Quote from: dogie on May 22, 2014, 06:37:55 PM

No, that is super super max. Click on each of the presets then advanced and take a look at what each of those modes tries to set for an idea of what is going on.

that's "super super max." is what I am trying to point out. SP's document states "Default = 790mv" which I believe is incorrect. It should read Default = 683mv.

Please correct me if I am wrong

Cheers,
QG

This is the maximal voltage that the miner is *allowed* to reach in its dynamic scaling. Setting to 790mv is practically unlimited, it will stop somewhere between 670 and 710. depending on the temperature and the corner of the ASICs. If you want to make the miner more efficient (but less productive) you can set it to 660, 640 or even 600. I would not go under 580mv - some ASICs start to fail unless if you got a fast corner (but we were not lucky with our ASIC corners lately - only first batch can handle 550mv).
So far best configuration for first batch (April) is start-voltage:660, max-voltage:790, for second batch (early May) start-voltage:680, max-voltage:790.
I am working on making the scaling efficient on our latest batch (late May), hope to have results after the weekend.

What causes the variation between batches?

Normal ASIC production variations.
First batch was typical corner (middle of the bell shape curve)
Second and third batches were slow corner

All the miners will be within the 1.4 THs +- 10% published spec, hopefully on the plus side

You didnt answer my previous questions, how is the exhaust air temperature measured? where is the sensor located and what type of sensor is it? (possible the name and model ) I assume the front/back temp are intake/exhaust air temp.

I have very good reasons to ask this.

Guy Corem

donator

Activity: 1414

Merit: 1051

Spondoolies, Beam & DAGlabs

Quote from: QuiveringGibbage on May 22, 2014, 05:38:41 PM

No, that is super super max. Click on each of the presets then advanced and take a look at what each of those modes tries to set for an idea of what is going on.

that's "super super max." is what I am trying to point out. SP's document states "Default = 790mv" which I believe is incorrect. It should read Default = 683mv.

Please correct me if I am wrong

Cheers,
QG

This is the maximal voltage that the miner is *allowed* to reach in its dynamic scaling. Setting to 790mv is practically unlimited, it will stop somewhere between 670 and 710. depending on the temperature and the corner of the ASICs. If you want to make the miner more efficient (but less productive) you can set it to 660, 640 or even 600. I would not go under 580mv - some ASICs start to fail unless if you got a fast corner (but we were not lucky with our ASIC corners lately - only first batch can handle 550mv).
So far best configuration for first batch (April) is start-voltage:660, max-voltage:790, for second batch (early May) start-voltage:680, max-voltage:790.
I am working on making the scaling efficient on our latest batch (late May), hope to have results after the weekend.

What causes the variation between batches?

Normal ASIC production variations.
First batch was typical corner (middle of the bell shape curve)
Second and third batches were slow corner

All the miners will be within the 1.4 THs +- 10% published spec, hopefully on the plus side

dogie

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dogiecoin.com

Quote from: QuiveringGibbage on May 22, 2014, 05:38:41 PM

Quote from: QuiveringGibbage on May 22, 2014, 05:38:41 PM

No, that is super super max. Click on each of the presets then advanced and take a look at what each of those modes tries to set for an idea of what is going on.

that's "super super max." is what I am trying to point out. SP's document states "Default = 790mv" which I believe is incorrect. It should read Default = 683mv.

Please correct me if I am wrong

Cheers,
QG

This is the maximal voltage that the miner is *allowed* to reach in its dynamic scaling. Setting to 790mv is practically unlimited, it will stop somewhere between 670 and 710. depending on the temperature and the corner of the ASICs. If you want to make the miner more efficient (but less productive) you can set it to 660, 640 or even 600. I would not go under 580mv - some ASICs start to fail unless if you got a fast corner (but we were not lucky with our ASIC corners lately - only first batch can handle 550mv).
So far best configuration for first batch (April) is start-voltage:660, max-voltage:790, for second batch (early May) start-voltage:680, max-voltage:790.
I am working on making the scaling efficient on our latest batch (late May), hope to have results after the weekend.

What causes the variation between batches?

zvisha

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Activity: 560

Merit: 500

No, that is super super max. Click on each of the presets then advanced and take a look at what each of those modes tries to set for an idea of what is going on.

that's "super super max." is what I am trying to point out. SP's document states "Default = 790mv" which I believe is incorrect. It should read Default = 683mv.

Please correct me if I am wrong

Cheers,
QG

This is the maximal voltage that the miner is *allowed* to reach in its dynamic scaling. Setting to 790mv is practically unlimited, it will stop somewhere between 670 and 710. depending on the temperature and the corner of the ASICs. If you want to make the miner more efficient (but less productive) you can set it to 660, 640 or even 600. I would not go under 580mv - some ASICs start to fail unless if you got a fast corner (but we were not lucky with our ASIC corners lately - only first batch can handle 550mv).
So far best configuration for first batch (April) is start-voltage:660, max-voltage:790, for second batch (early May) start-voltage:680, max-voltage:790.
I am working on making the scaling efficient on our latest batch (late May), hope to have results after the weekend.

QuiveringGibbage

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Activity: 617

Merit: 543

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