2s3's or 1 c1

[alh]

Yes exact same chip's.  They take up a decent amount of space by time you set up them up.  They run at a much higher freq then the S3's. Below is a old picture of my 2 C1's.

http://i100.photobucket.com/albums/m25/notlist3d/C1/IMG_3214_zps554b8085.jpg

This is within the first 2 day's of running as they still had syscooling pumps.

If you could find some way to run them in series... I don't know too much about water cooling and I never really got into the thermodynamics and fluid mechanics stuff... but if there was some way to hook up like 10 boards to a single pump/radiator then I could see the density argument.  Has anyone tried doing something like that?  Throwing 10 boards, a pump/radiator/fans/etc into a 4U enclosure?  I'm not sure if something like that is even possible...

I would think a series arrangement would be terrible for ten blades. As the water flows through the loop, it will increase in temperature, until the 10th blade where it's pretty warm and doesn't have as much capacity to absorb more. Wouldn't it make more sense to have the cool water exiting the radiator go into a manifold which essentially distributes the water down multiple paths to each blade?

[notlist3d]

Yes exact same chip's.  They take up a decent amount of space by time you set up them up.  They run at a much higher freq then the S3's. Below is a old picture of my 2 C1's.

http://i100.photobucket.com/albums/m25/notlist3d/C1/IMG_3214_zps554b8085.jpg

This is within the first 2 day's of running as they still had syscooling pumps.

If you could find some way to run them in series... I don't know too much about water cooling and I never really got into the thermodynamics and fluid mechanics stuff... but if there was some way to hook up like 10 boards to a single pump/radiator then I could see the density argument.  Has anyone tried doing something like that?  Throwing 10 boards, a pump/radiator/fans/etc into a 4U enclosure?  I'm not sure if something like that is even possible...

I would think a series arrangement would be terrible for ten blades. As the water flows through the loop, it will increase in temperature, until the 10th blade where it's pretty warm and doesn't have as much capacity to absorb more. Wouldn't it make more sense to have the cool water exiting the radiator go into a manifold which essentially distributes the water down multiple paths to each blade?

You would have to pretty much have a radiator between each unit.   Or some way of keeping the coolant really really cold.   You will not be able to just hook up pump and run through 10 without some serious planning.

So you could run in series but would be kinda a cluster with all of it hooked up together.

[jonnybravo0311]

Remember the fun days of extreme overclocking?  People would drop their Pentiums into liquid nitrogen to try and get the most possible speed out of the chips.

I agree the cooling performance of the liquid would certainly degrade the more boards it had to deal with, and perhaps the optimal limit is indeed what the C1 offers.  I know there were some folks doing total immersion tests with the Spondoolies boards to get some crazy density.  It would be interesting to see how far these things can be pushed.

[notlist3d]

Remember the fun days of extreme overclocking?  People would drop their Pentiums into liquid nitrogen to try and get the most possible speed out of the chips.

I agree the cooling performance of the liquid would certainly degrade the more boards it had to deal with, and perhaps the optimal limit is indeed what the C1 offers.  I know there were some folks doing total immersion tests with the Spondoolies boards to get some crazy density.  It would be interesting to see how far these things can be pushed.

During GPU day's people pushed cards hard.  But you had a very long warranty and it was not hard to unplug one card and send a RMA in.

With today's asis if you push to hard chances are you will end up with a dead chip.  Some gear does OC better then other Bitmain has always done good in OC area.

[jonnybravo0311]

Remember the fun days of extreme overclocking?  People would drop their Pentiums into liquid nitrogen to try and get the most possible speed out of the chips.

I agree the cooling performance of the liquid would certainly degrade the more boards it had to deal with, and perhaps the optimal limit is indeed what the C1 offers.  I know there were some folks doing total immersion tests with the Spondoolies boards to get some crazy density.  It would be interesting to see how far these things can be pushed.

During GPU day's people pushed cards hard.  But you had a very long warranty and it was not hard to unplug one card and send a RMA in.

With today's asis if you push to hard chances are you will end up with a dead chip.  Some gear does OC better then other Bitmain has always done good in OC area.

Yeah, the GPU/CPU were pretty easy to RMA.  It's considerably tougher to do the same with the ASIC mining gear.  I have had mixed luck with the Bitmain gear.  My S1s all overclocked and ran solidly at 200GH/s.  My S3s... well, I've got a few that stay steady at 478GH/s.  A few that won't go above 440GH/s.  One that just will not run consistently above 400GH/s and one that has been running at 504GH/s pretty much non-stop since I got it last year.  Oh yeah, and 1 that just flat out died on me at the end of January.  Oh well... it had earned its keep by then, so I just wrote it off

[notlist3d]

Remember the fun days of extreme overclocking?  People would drop their Pentiums into liquid nitrogen to try and get the most possible speed out of the chips.

I agree the cooling performance of the liquid would certainly degrade the more boards it had to deal with, and perhaps the optimal limit is indeed what the C1 offers.  I know there were some folks doing total immersion tests with the Spondoolies boards to get some crazy density.  It would be interesting to see how far these things can be pushed.

During GPU day's people pushed cards hard.  But you had a very long warranty and it was not hard to unplug one card and send a RMA in.

With today's asis if you push to hard chances are you will end up with a dead chip.  Some gear does OC better then other Bitmain has always done good in OC area.

Yeah, the GPU/CPU were pretty easy to RMA.  It's considerably tougher to do the same with the ASIC mining gear.  I have had mixed luck with the Bitmain gear.  My S1s all overclocked and ran solidly at 200GH/s.  My S3s... well, I've got a few that stay steady at 478GH/s.  A few that won't go above 440GH/s.  One that just will not run consistently above 400GH/s and one that has been running at 504GH/s pretty much non-stop since I got it last year.  Oh yeah, and 1 that just flat out died on me at the end of January.  Oh well... it had earned its keep by then, so I just wrote it off

The GPU's RMA on most companies was truly amazing.  I think most of my cards were like 3 and 5 year warranty.  Which is insane for a video card.  It's out of date by that time.

I didnt have to do that many RMA's but I did a few.   It was very easy unplug the broken GPU and within 2 weeks normally you would get a working card like it.  Only thing was a lot of RMA cards were beaten up a little and did not look near as nice.

On asics manufactures they obviously can't offer this for to long.  In most cases 90 days.