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Author Topic: Pictures of your mining rigs!  (Read 1627228 times)
rupy
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August 09, 2013, 08:25:02 AM
 #2881

@Xian01 my guess is those powerbricks wont last 2 months like that...

 Why do you say that ? Decent air-flow and temperature in that room, and the bricks are not hot to the touch at all.

Ok, then it's fine... Just had a 60W running at 40W power brick fail on me after a year without being choked together like that... You're not even pulling 50% of max power on them then?

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Jay_Pal
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August 09, 2013, 08:35:37 AM
 #2882

Can I play the big fan game too?  Shocked

It needs to run off a car battery jump-starter (600 A peak current) because none of my bench PSU could handle it. It needs about 200 watts or more. Even my small desktop PC ATX PSUs were no match.

I made a bag thing out of a painters dropsheet to show how much air it moves.

http://www.youtube.com/watch?v=ihvaFVsB4G8



That's cool!!! But I've always thought that the fans would block each one's air... guess i was wrong, and that, gave me some cool ideas!! Wink

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dani
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August 09, 2013, 08:37:17 AM
 #2883


Any thoughts? Smiley


crazy but nice Cheesy

you could also try a bigger fan, like this:

http://www.caseking.de/shop/catalog/Luefter/Ueber-140mm-Luefter/BitFenix-Spectre-PRO-230mm-Luefter-schwarz::17899.html

230mm diameter, circular case, 264,0 m³/h airflow.

thanks! Smiley

Those are actually not that good, 4 times a 120mm fan would get me like 400m³/h, with a cheap Arctic Cooling F12. The reason I used those fans were I got them off ebay pretty cheap (like 1-2€ each).
I plan on using nine of these:


Fan size: 92mm 55CFM, 32dBa, 3000rpm. Those should push some serious air I hope.

Anymore thoughts? Could anyone explain me why I need the exit (the left side) and not just leave it open after flowing throug hmy to be cooled units? http://img.gawkerassets.com/img/18adxj7fzzmaxjpg/k-bigpic.jpg

Hai
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August 09, 2013, 08:39:11 AM
 #2884


Any thoughts? Smiley


crazy but nice Cheesy

you could also try a bigger fan, like this:

http://www.caseking.de/shop/catalog/Luefter/Ueber-140mm-Luefter/BitFenix-Spectre-PRO-230mm-Luefter-schwarz::17899.html

230mm diameter, circular case, 264,0 m³/h airflow.

Drooling all over the keyboard!!!! :p

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August 09, 2013, 08:42:55 AM
 #2885

I have 15 of these delta 120s - 252CFM - lovely for shifting air BUT too loud for continuos use (unless its in a server room) i have 12 pulling air in my server cab and 3 to 'play' with Wink

I have a couple of those and they are just insanely powerful: http://www.youtube.com/watch?v=kDOSaPULFro

WOW!!! That's not noisy... that's not loud... that's a leaf blower!!!
Can you please detail the NE555?

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August 09, 2013, 08:46:45 AM
 #2886


Any thoughts? Smiley


crazy but nice Cheesy

you could also try a bigger fan, like this:

http://www.caseking.de/shop/catalog/Luefter/Ueber-140mm-Luefter/BitFenix-Spectre-PRO-230mm-Luefter-schwarz::17899.html

230mm diameter, circular case, 264,0 m³/h airflow.

thanks! Smiley

Those are actually not that good, 4 times a 120mm fan would get me like 400m³/h, with a cheap Arctic Cooling F12. The reason I used those fans were I got them off ebay pretty cheap (like 1-2€ each).
I plan on using nine of these:


Fan size: 92mm 55CFM, 32dBa, 3000rpm. Those should push some serious air I hope.

Anymore thoughts? Could anyone explain me why I need the exit (the left side) and not just leave it open after flowing throug hmy to be cooled units? http://img.gawkerassets.com/img/18adxj7fzzmaxjpg/k-bigpic.jpg
Hi!!!

The exit has the same principle as the rear of a rocket engine - for a moment let's forget the fans and think only in passive air circulation. Since the hot air expands, it will hit the walls.
But those walls angle will make it go out, instead of returning.
Since the air exits, it will create a very low pressure in the middle, pushing the air from the back. Wink

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dani
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August 09, 2013, 08:51:08 AM
 #2887


...
Hi!!!

The exit has the same principle as the rear of a rocket engine - for a moment let's forget the fans and think only in passive air circulation. Since the hot air expands, it will hit the walls.
But those walls angle will make it go out, instead of returning.
Since the air exits, it will create a very low pressure in the middle, pushing the air from the back. Wink

Oh, now I get it. I should do more testing Cheesy. Btw, I ordered some temperature sensors (two), only need something to heat in the middle section. Should be fun Smiley
I'm thinking about using a big-ass-fan this http://www.amazon.com/Lasko-3733-20-Fan-Box/dp/B00002ND67/ref=sr_1_1?ie=UTF8&qid=1376038212&sr=8-1&keywords=boxed+fan
but I can't find the equivalent of a boxed fan here in germany, only round ones (I want a boxed one!)

Hai
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August 09, 2013, 09:11:07 AM
 #2888


...
Hi!!!

The exit has the same principle as the rear of a rocket engine - for a moment let's forget the fans and think only in passive air circulation. Since the hot air expands, it will hit the walls.
But those walls angle will make it go out, instead of returning.
Since the air exits, it will create a very low pressure in the middle, pushing the air from the back. Wink

Oh, now I get it. I should do more testing Cheesy. Btw, I ordered some temperature sensors (two), only need something to heat in the middle section. Should be fun Smiley
I'm thinking about using a big-ass-fan this http://www.amazon.com/Lasko-3733-20-Fan-Box/dp/B00002ND67/ref=sr_1_1?ie=UTF8&qid=1376038212&sr=8-1&keywords=boxed+fan
but I can't find the equivalent of a boxed fan here in germany, only round ones (I want a boxed one!)

What sensors have you ordered?
I had a lot of trouble that way. They were both expensive and hard to use.
I've been advised in MSP430 forum against the thermo-resistors type, and those such as DHT11 are too complex for my knowledge (and expensive for experiments).
As for heating, as I PM'd you, I'm thinking in heated water, for now.
But I've thought some months ago in this: http://www.iceinspace.com.au/63-292-0-0-1-0.html
BTW, I've found out yesterday's night that a 7ohm @ 10W resistor and a 12V@1A power source don't mate well, although they really produce heat. Too much of it!!  Grin
Read somewere once, many years ago, that if we powered a couple of pins on an old pentium 100 processor, and shorted some other, it would heat up stable, but can't find that anymore. Just this: http://www.instructables.com/id/USB-Heater-or-How-to-Upgrade-Your-Coffee-Cup/ which as nothing to do with... Sad

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Beans
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August 12, 2013, 08:41:42 AM
 #2889

rammy2k2
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August 12, 2013, 09:23:51 AM
 #2890

I have 15 of these delta 120s - 252CFM - lovely for shifting air BUT too loud for continuos use (unless its in a server room) i have 12 pulling air in my server cab and 3 to 'play' with Wink

I have a couple of those and they are just insanely powerful: http://www.youtube.com/watch?v=kDOSaPULFro

that noise ....  Cry
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August 12, 2013, 09:38:46 AM
 #2891

I have 15 of these delta 120s - 252CFM - lovely for shifting air BUT too loud for continuos use (unless its in a server room) i have 12 pulling air in my server cab and 3 to 'play' with Wink

I have a couple of those and they are just insanely powerful: http://www.youtube.com/watch?v=kDOSaPULFro

that noise ....  Cry

just one in my office is too much!
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August 12, 2013, 12:52:00 PM
 #2892

Ill put up some pictures of my blade-farm as soon as I find my camera's charger, and the rest of my blades get here. I just wish this wasn't so dam addicting.
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August 12, 2013, 01:09:44 PM
 #2893

Ill put up some pictures of my blade-farm as soon as I find my camera's charger, and the rest of my blades get here. I just wish this wasn't so dam addicting.

We accept cellphone pictures!! Cheesy  Tongue

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JBangers
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August 12, 2013, 01:26:15 PM
 #2894

http://i.imgur.com/HMqD035.jpg?1
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August 12, 2013, 05:25:25 PM
 #2895

Got some really cheap Dell Optiplex PC's to add to my prime mining network at home. They were really cheap, apparently because 3 of 4 of them had dead PSU's. So just plug in another one right? Wrong. Dell and HP small form factor / slimline desktops use a quasi-proprietary mini 24-pin motherboard power connector that is about 1 cm smaller than a normal ATX motherboard connector. Sure, there are some adapter on ebay for about $15 from China or USA... but none in my country.

The solution was clear to me:





So I did that three times each for the three cables. Saved myself $30 on ebay + 1 month wait.

The next problem was that a normal PSU is twice the size of the Dell original. Also these cases get REALLY hot (50-60 deg C) when under 100% load for a long time, and with the original Dell PSU's they're even worse. The one with the working Dell PSU has the entire inside of the case at 50+ degrees C after 1 hour at load... not good for the components. The cooling in those Dell PSU really is terrible, you get what you pay for I guess.



And so it looked pretty silly with 3 big PSU power 3 small desktops, so I figure I will remove the cases entirely... FPGA stack style.

Taking shape!



Here's the 'installed' system on top of my bookshelf. Each has a USB to boot off.





Because installing windows for every machine takes too much time // I can't linux btw :S // I am investigating using VMWare ESXi 5.1 virtualization on them. But this is a learning curve in itself... and I have had to completely alter one of my servers just to run try and run them.

Oh yeah, each desktop is a core2duo @ 2.93 and with 3 or 4 GB ram.

EDIT: Oh yeah the three larger PSU are really old (~2002 or earlier). I'll be replacing all of them with new ones soon.

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August 12, 2013, 05:41:10 PM
 #2896

What are you planning to mine with the old Dells? We throw 15-20 of these away every month.
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August 12, 2013, 05:49:02 PM
 #2897

@Trillium  you do know that there is a primecoin gpu miner coming out soon right?

Tired of substandard power distribution in your ASIC setup???   Chris' Custom Cablez will get you sorted out right!  No job too hard so PM me for a quote
Check my products or ask a question here: https://bitcointalk.org/index.php?topic=74397.0
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August 12, 2013, 05:55:36 PM
 #2898



What are the Pennies for?

*insert appropriate begging line here* 
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Doge: DB22tiynvXKg7SyPpnH9jyfitKLTZb6ejc
miter_myles
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August 12, 2013, 05:57:24 PM
 #2899


I'm guessing to weigh down the base of the CD/DVD case so it doesn't fall over given the cords coming off the side...

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LTC - LVFukQnCWUimBxZuXKqTVKy1L2Jb8kZasL
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August 13, 2013, 12:26:16 AM
 #2900


I'm guessing to weigh down the base of the CD/DVD case so it doesn't fall over given the cords coming off the side...

Oh, i thought maybe it was some penny to BTC transmutation device.

*insert appropriate begging line here* 
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Doge: DB22tiynvXKg7SyPpnH9jyfitKLTZb6ejc
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