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Author Topic: Pictures of your mining rigs!  (Read 1627037 times)
forcefedvr6
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November 17, 2013, 01:11:53 PM
 #3921


[/quote]

Assuming the fans are both orientated in identical directions, eg  --> and --> then the overall flow will be very slightly improved. I disagree with the comment above that it is actually reducing it: you are creating suction on one end not in fact restricting flow in any way, it is actually enhancing flow through the mid point of the tube.


What you are missing is that the fan blades of the second fan are actually causing a huge restriction in that configuration.

Your example of a push/pull configuration in a box/tower is creating more internal turbulence than a single fan, and you are probably getting more complete air movement *within* the box,  but if the box is otherwise sealed, you certainly aren't moving any more air in or out of the box due to having a second fan placed in the exhaust port. In fact you are moving much less out of it due to the fan being there and causing a restriction.

If you want to increase CFM with multiple fans,  then you would have to provide an individual matched intake and exhaust port for *each* fan.  Always have matched ports for each fan or expect to pay significant penalties in the form of CFM.
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malevolent
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November 17, 2013, 01:18:39 PM
 #3922

although as that card was never very popular with either gamers or miners your chances here are not great either.  Angry

HD 5830 actually was actually quite popular among the miners, it usually had a good price:speed ratio, though there was less demand for it at times when the BTC price:difficulty ratio was getting worse because 5830 is a power hungry GPU.

You mean like few years back? I though HD 5850 and HD 5870 is much better in term of hash/price?

HD 5870 weren't usually that good in terms of speed/price but they were quite good in terms of speed/power draw, and using them meant savings on motherboards/RAM/CPU because there's a limited amount of free PCI-E slots on each motherboard.

I'm not saying it was always like that with 58xx GPUs, but in general it was how I described.

5830 were cheap but not so appealing when it meant they would take up more space and draw more power.
5870 were expensive but they would take up a lot less space.
5850 were a good balance between those two.
qwertzlcoatl
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November 17, 2013, 01:28:10 PM
 #3923

A way to use waste heat from an ASIC to keep an aquaponics fish tank from freezing: https://www.youtube.com/watch?v=Zsh-vbgwKNE

 Cool
molecular
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November 17, 2013, 04:14:15 PM
 #3924

A way to use waste heat from an ASIC to keep an aquaponics fish tank from freezing: https://www.youtube.com/watch?v=Zsh-vbgwKNE

 Cool

very cool shit, bro!

somet grabs from the vid:





PGP key molecular F9B70769 fingerprint 9CDD C0D3 20F8 279F 6BE0  3F39 FC49 2362 F9B7 0769
klondike_bar
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November 17, 2013, 04:43:36 PM
 #3925



Assuming the fans are both orientated in identical directions, eg  --> and --> then the overall flow will be very slightly improved. I disagree with the comment above that it is actually reducing it: you are creating suction on one end not in fact restricting flow in any way, it is actually enhancing flow through the mid point of the tube.


What you are missing is that the fan blades of the second fan are actually causing a huge restriction in that configuration.

Your example of a push/pull configuration in a box/tower is creating more internal turbulence than a single fan, and you are probably getting more complete air movement *within* the box,  but if the box is otherwise sealed, you certainly aren't moving any more air in or out of the box due to having a second fan placed in the exhaust port. In fact you are moving much less out of it due to the fan being there and causing a restriction.

If you want to increase CFM with multiple fans,  then you would have to provide an individual matched intake and exhaust port for *each* fan.  Always have matched ports for each fan or expect to pay significant penalties in the form of CFM.


the reason for my setup is that the exhaust fan was accidentally attached to the housing in a pull direction, rather than a push as i would have preferred (and im too lazy to spend 20min fixing it the other way lol). The fan on the left (push) is actually at about a 30 degree angle so that not only does it direct the entering airflow onto the back of the board and its heatsinks, but there is a gap available in the opening so that if the fans run different speeds, some airflow can enter/escape there to minimise any issues with mismatched CFM. putting my hand by it indicates that there is no noticed flow/scution at the gap so the CFM of the 2 fans must be very similar.  in either case, im able to push the card for almost all its potential - theres maybe 1-2GH more i could squeeze if my living room wasnt 22 degrees (C) and was just a bit cooler - but not a big deal IMO

24" PCI-E cables with 16AWG wires and stripped ends - great for server PSU mods, best prices https://bitcointalk.org/index.php?topic=563461 also selling 6" M-F-M PCIe splitters and PCIe-PCIe
No longer a wannabe - now an ASIC owner!
rupy
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November 17, 2013, 05:04:54 PM
 #3926



The three elements; bitcoin, fire and water. Heating the house is complex noise-wise, going to try and rotate the aluminium heatsinks 90 degrees soon so I can remove the sideways fan.

BANKBOOK GWT Wallet & no-FIAT Billing API
BTC 14xr5Q1j61A1eA6Mrs5MRhUmYZKboY8iq2 | Vanillacoin FPGA Miner
rampalija
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November 17, 2013, 05:33:27 PM
 #3927




Without this everything would be almost impossible Smiley
maxl
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November 17, 2013, 06:05:40 PM
 #3928

And never forget this  Grin:
rampalija
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November 17, 2013, 06:06:50 PM
 #3929

And never forget this  Grin:



and that AMERICAN TAPE is so good and strong tape. Not good look but it does the job
arklan
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Just along for the ride...


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November 17, 2013, 06:07:56 PM
 #3930

American tape?
rampalija
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November 17, 2013, 06:11:31 PM
 #3931

American tape?

TRY google it!

Yeah, that is the name of this one in my country!



pontiacg5
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November 17, 2013, 06:37:51 PM
 #3932

This is what I've been working on all weekend.

Winwoes is fighting like a beast, so I'm having to learn new things to get this going.








And of course the initial design  Grin



My services are always for hire, too  Cheesy

Please DO NOT send me private messages asking for help setting up GPU miners. I will not respond!!!
Cablez
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I owe my soul to the Bitcoin code...


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November 17, 2013, 07:20:22 PM
 #3933

Are those USB to PCIE 1x risers?  Cool.  Where did you source those?

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
jedimstr
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November 17, 2013, 07:40:59 PM
 #3934

Are those USB to PCIE 1x risers?  Cool.  Where did you source those?

I see them on eBay: http://bit.ly/1ec3kys

bobsag3
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November 17, 2013, 07:56:38 PM
 #3935

This is what I've been working on all weekend.

Winwoes is fighting like a beast, so I'm having to learn new things to get this going.


*snip*

And of course the initial design  Grin



My services are always for hire, too  Cheesy

Can you PM with me a quote for 2? How stackable/scaleable is this? Very interested Tongue
jedimstr
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November 17, 2013, 07:59:26 PM
 #3936

With the GPU exhausts pointed up, don't know if stacking would be an ideal configuration for these. They are pretty cool looking though Wink

bobsag3
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November 17, 2013, 08:03:28 PM
 #3937

With the GPU exhausts pointed up, don't know if stacking would be an ideal configuration for these. They are pretty cool looking though Wink
I can just stick them on top of the racks I use for asics
MaxBTC1
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November 17, 2013, 08:16:09 PM
 #3938

This is what I've been working on all weekend.

Winwoes is fighting like a beast, so I'm having to learn new things to get this going.








And of course the initial design  Grin



My services are always for hire, too  Cheesy

Thats fucking cool man?  Whats your av payout?!

pontiacg5
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November 17, 2013, 08:36:05 PM
 #3939

This is what I've been working on all weekend.

Winwoes is fighting like a beast, so I'm having to learn new things to get this going.

And of course the initial design  Grin


My services are always for hire, too  Cheesy
Is this really yours?
That is Awesome rig!  Love it mate!

Edit: can you make a Youtube ?


Haha, yeah. Really mine  Grin

I'll make a youtube video when I get it running finally. I know nothing about linux, but managed to get the 13.11 amd beta drivers installed. I used 12.04, but cgminer 3.4 won't run on 12.04 apparently, and other cgminer versions don't play nice with these cards.

Are those USB to PCIE 1x risers?  Cool.  Where did you source those?

I see them on eBay: http://bit.ly/1ec3kys

Those are the ones I used. Much better than the ribbon cable garbage. I never got those to work reliably.


This is what I've been working on all weekend.

Winwoes is fighting like a beast, so I'm having to learn new things to get this going.


*snip*

And of course the initial design  Grin


My services are always for hire, too  Cheesy

Can you PM with me a quote for 2? How stackable/scaleable is this? Very interested Tongue

I sure can, I'll need to wait till tomorrow though if that's alright.

I designed it to be scalable and stackable, there's still a few things I plan to change for the final model. The sides will likely be closed with acrylic, and I don't foresee the orientation of the cards being much of an issue. There will be a huge air space above the cards when stacked, the 20" box fan will have no problem pushing that out the back. From some initial research the riser cables can be had for around 6.60/ea in bulk too, so no more than an average riser.

It's pretty heavy duty though, and will be even more so when I find steel rivets instead of aluminum. In the final revision the top tray will be bent deeper, so a second pair of legs can be stacked/keyed on top. Probably use 6/32's to secure them together.

This is what I've been working on all weekend.

Winwoes is fighting like a beast, so I'm having to learn new things to get this going.




And of course the initial design  Grin


My services are always for hire, too  Cheesy

Thats fucking cool man?  Whats your av payout?!

Not actually mining with this yet, but I have this much hardware already hashing. Around 3-4/day. I expect this rig to hash at 4.5mh/s

Please DO NOT send me private messages asking for help setting up GPU miners. I will not respond!!!
rampalija
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November 17, 2013, 10:15:50 PM
 #3940

i didnt know that they are usb to pciex1 risers, IS the hashrate still same or it is changeing
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