[CLOSED] ASICMiner Prisma 1.4th/s - 1.47 BTC - page 24.

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

Quote from: GrapeApe on October 24, 2014, 08:49:10 AM

I have a couple of extra Dell 750psu's with breakout boards and cables (from sidehack). They are loud but no louder than the Prisma. 2 of them will power 1 Prisma easy with all 8 cables.

I've polluted this thread enough so if interested please PM me .

.33BTC for 2 of them. PSUs, Boards and Cables

EDIT: Hey Phillipma1957 which fan is that and did it slow down the original at all or does still stay ramped up?

that is a great fan 140 mm made to fit 120 mm quiet but it did not make the stock fan slower.

I wire the stock fan to a fan controller that fixed noise.

link for fan

http://www.amazon.com/gp/product/B00A460TK6/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1

Many times I pull one s-3 stock fan and add this works well for that too.

wasikidding

sr. member

Activity: 268

Merit: 250

Quote from: jelin1984 on October 24, 2014, 05:56:58 PM

The prisma miner is noisy???.

It has been noted the fan will produce 70db + so yeah

jelin1984

legendary

Activity: 2408

Merit: 1004

The prisma miner is noisy???.

helipotte

hero member

Activity: 650

Merit: 500

Pick and place? I need more coffee.

Like this:

Temp is monitored by fan controller.

Nice and quiet.

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

Quote from: TracerX on October 24, 2014, 01:00:39 PM

Quote from: helipotte on October 24, 2014, 12:13:52 PM

At one site I have two tubes running "broken down". What I did is detach the hashing modules from each other and install standoffs on the board side. They sit flat.

Then I attached one 120mm fan to each one. They stay at about 40c and 99.5% of expected performance. Also super quiet as the fans are running off of 5vdc!

The disadvantage is they take up more space this way. Tongue

I'm interested to see the design--can you post a pic if we ask nicely?

yeah . I would like to see it.

also at crazyguy a 1 board piece could be a good seller.

sell the board
the heat sink
the thermal pad
adapter plug
sd image card

I would buy that .

It should do 325-375gh

use 250-300 watts.

could be made to be very quiet with fans.

TracerX

hero member

Activity: 918

Merit: 1002

Quote from: helipotte on October 24, 2014, 12:13:52 PM

At one site I have two tubes running "broken down". What I did is detach the hashing modules from each other and install standoffs on the board side. They sit flat.

Then I attached one 120mm fan to each one. They stay at about 40c and 99.5% of expected performance. Also super quiet as the fans are running off of 5vdc!

The disadvantage is they take up more space this way. Tongue

I'm interested to see the design--can you post a pic if we ask nicely?

helipotte

hero member

Activity: 650

Merit: 500

Pick and place? I need more coffee.

At one site I have two tubes running "broken down". What I did is detach the hashing modules from each other and install standoffs on the board side. They sit flat.

Then I attached one 120mm fan to each one. They stay at about 40c and 99.5% of expected performance. Also super quiet as the fans are running off of 5vdc!

The disadvantage is they take up more space this way. Tongue

LordPaco

full member

Activity: 120

Merit: 100

So here is the overnight update:

@philipma1957 - I think you are right here, either not enough power or too hot, probably the first.

One of my 30amp 240v breakers tripped shutting off a PDU, so I moved one of the power supplies to another pdu. Problem solved but demonstrates the power these guys drink.

At 240 freq it worked for about 3 hours then slowly the hash would decline, I thought one of power supplies may have overheated but when I checked everything looked fine. Hitting the 'resession' button on the be controller set everything back on que again. Then within several hours same thing.

At 250 freq it worked or about an hour then I had the same problem of the hash rate declining until I hit the 'resession' button. Hash rate did not increase.

At 230 freq it is still working for the past 6 hours with no hash rate decline and it matches the ghs that is to be expected. Curious if this helps with power usage at all, but really hoping it stays this way I'm not in a position to be hitting buttons multiple times a day. So far so good crossing my fingers.

[edit] seems to be generating a lot of duplicate shares is this normal?, Also I think 2048 may be a better diff setting for 4x prisma.

GrapeApe

sr. member

Activity: 476

Merit: 250

I have a couple of extra Dell 750psu's with breakout boards and cables (from sidehack). They are loud but no louder than the Prisma. 2 of them will power 1 Prisma easy with all 8 cables.

I've polluted this thread enough so if interested please PM me .

.33BTC for 2 of them. PSUs, Boards and Cables

EDIT: Hey Phillipma1957 which fan is that and did it slow down the original at all or does still stay ramped up?

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

Quote from: LordPaco on October 23, 2014, 11:54:51 PM

Thanks CrazyGuy, I now have 4 prismas connected to one BE cube that is chugging away the past 2 hours now without problems. I needed the dip switch info for sure. Straight forward install, everything there and even a few extra cables. Sweet more stuff for the parts drawer.

Apologies for the dark pic. But you can see I am powering 4 prismas using two stacked 2000watt IBM DPS2000BB power supplies with Sidehack's awesome breakout board and his cables 1 PCI-E per hashing board (which I admit are a little long for this layout). Cables are not hot or warmer than outside environment. I had a little mishap that involved grounding metal to some parts of a hashing board with pops and sparks but that board is chugging away anyhow Grin

The tubes do give off a lot of heat, more than the S3 for sure, but just a bit more than a S1. Most of the heat is coming from the stacked power supplies pushing ~4500watts combined. (not confirmed soon I will obtain some recycled PDU's that meter each outlet Cool

) I used the two fans that came with my older S2 kit for the power supplies, one to push, one to pull. One just one wasn't enough it would overheat and shut off.

Pool side reporting 5.7Ths past 1hour, difficulty at 4096.

try setting them to freq 230. I did extensive testing and used the short tubes for about a month.

your numbers show me that you are running too hot. and maybe under powered. you can tell by your

Real Performance: 5482.83GHS vs Expected Performance: 5898.24GHS

92.96%

If you have enough power and are cool enough you run at 98 to 101%.

here I am overclocked with 2 short tubes. but I used 2 fans and had robust power supply overclock was 280 vs 270 stock

here is a 290 clock. using two fans and handles out not in

second fan added handles out. handles out takes heat further away from the chips. no question 2 fans and handles out helps units to be cooler.

Xtra7973

newbie

Activity: 47

Merit: 0

Quote from: stan258 on October 24, 2014, 05:49:00 AM

I wanted to use a HP DPS 1200W until the revised power consumtion reported. My Back up is 2 HP DPS 800s. I am a bit concerned about the power draw. Has anybody tried 240V yet?

I am in the same boat. I was going to use my ax1200i but that isnt going to happen now with the new numbers. I bought one evga 1300 from phillip and now I am going to have to grab another one I guess, http://www.amazon.com/EVGA-SuperNOVA-1300G2-ATX12V-120-G2-1300-XR/dp/B00COIZTZM/ref=sr_1_1?ie=UTF8&qid=1414156713&sr=8-1&keywords=evga+1300 amazon seems to be the cheapest. My only problem is finding extra wires to power it. On evga's website they have them listed but they are sold out, also they are $90.00 that's expensive. Time to keep looking I suppose.

ferncreekminer

newbie

Activity: 25

Merit: 0

Quote from: ferncreekminer on October 23, 2014, 07:19:01 PM

Quote from: ferncreekminer on October 22, 2014, 08:47:47 PM

Quote from: philipma1957 on October 22, 2014, 07:56:42 PM

Quote from: ferncreekminer on October 22, 2014, 05:03:43 PM

I'm planning on using 2 x EVGA G2 750Watt PSU per Prisma miner; the 750W has 4 PCIE connectors - so 2 per hashboard isn't a problem.

If anyone is looking for a good deal Amazon has the best price currently; plus their MiR is good for 2 PSUs.

if that is a split rail psu it won't work. I have a 750 watter and it use up to 3 cables on the fourth it overloads. mine is a split rail model . check and see if it is.

The EVGA G2 750W has a single 12V rail.

Happy to report that this setup is working very nice; seeing around 1445-1460GH/s pulling 1195-1205W at the wall.

The Prisma had shifted a bit inside the foam padding, had 2 handles slightly bent (no damage to the boards) that had to be straightened a bit to be able to plug in the power connectors, the fan screws were loose & a screw was missing opposite side of the fan (found it in the box under the foam padding). Miner up and running within 15 minutes of USPS delivering the box.

Extremely pleased; thanks for organizing the GB CrazyGuy!

After approx 13 hrs of hashing - killawatt bouncing around 1185-1197W.

stan258

sr. member

Activity: 440

Merit: 250

I wanted to use a HP DPS 1200W until the revised power consumtion reported. My Back up is 2 HP DPS 800s. I am a bit concerned about the power draw. Has anybody tried 240V yet?

Xtra7973

newbie

Activity: 47

Merit: 0

Quote from: philipma1957 on October 23, 2014, 11:33:16 PM

Quote from: Xtra7973 on October 23, 2014, 09:41:10 PM

Hey Phil, the link you have for the wire is 12 gauge 10 feet long. You said its 10 gauge and it really drops the watts. Just wondering if you used the 12 gauge in your link or if you used 10 gauge. I found 12/3 @ 25 feet for 27-28 bucks http://www.homedepot.com/p/Cerrowire-25-ft-12-Gauge-SJOOW-Rubber-Cord-Black-282-3603A/202564772?N=5yc1vZc57q or you can grab 15 feet of it from amazon if you have prime for 19 bucks here http://www.amazon.com/Coleman-Cable-25-Amp-12-Gauge-15-Feet/dp/B002G9TNFG I am just wondering what you use 10 or 12 before I order it. Also does anyone have these running on a RPI yet? I have the B+ model or should I go out and grab the old B model or just order the BE controller from crazy for .069 btc? Also just curious if its working with the latest minera image or is there a custom one to get them going. Thanks all

stupid mistake

here is my 10/3 link

http://www.ebay.com/itm/25ft-power-cable-wire-10-3-600v-30-amp-STROW-generator-power-cable-/261536109031?pt=LH_DefaultDomain_0&hash=item3ce4c451e7

good four 4 six foot cables

now I am currently using the first ebay link which is 12 awg and 10 feet long.

I dropped my power from 1070 with a 14/3 cable
to 1009 with a 25 foot 12/3 cable
to 988 with the 10 foot 12/3 cable which I thought was 10/3
I ordered a 25 foot piece of the 10/3 and will make a 6 foot cable.

So the 12 awg is good enough for the 1 evga 1300 psu or in my case 1 1200 watt seasonic platinum.

both the seasonic and the evga stock cables are 14/3 and they run warm.

I will post 10/3 cable results very soon.

That's still a pretty good drop using 12/3 versus stock cables. Im curious to see your results using the 10/3 so maybe I will hold off on buying anything until I see your results. As always thanks for sharing your results.

CrazyGuy

legendary

Activity: 1973

Merit: 1007

That's awesome! Thanks for sharing your setup. Waiting on some IEC19 cables so I can get my DPS2000 running.

LordPaco

full member

Activity: 120

Merit: 100

Thanks CrazyGuy, I now have 4 prismas connected to one BE cube that is chugging away the past 2 hours now without problems. I needed the dip switch info for sure. Straight forward install, everything there and even a few extra cables. Sweet more stuff for the parts drawer.

Apologies for the dark pic. But you can see I am powering 4 prismas using two stacked 2000watt IBM DPS2000BB power supplies with Sidehack's awesome breakout board and his cables 1 PCI-E per hashing board (which I admit are a little long for this layout). Cables are not hot or warmer than outside environment. I had a little mishap that involved grounding metal to some parts of a hashing board with pops and sparks but that board is chugging away anyhow Grin

The tubes do give off a lot of heat, more than the S3 for sure, but just a bit more than a S1. Most of the heat is coming from the stacked power supplies pushing ~4500watts combined. (not confirmed soon I will obtain some recycled PDU's that meter each outlet Cool

) I used the two fans that came with my older S2 kit for the power supplies, one to push, one to pull. One just one wasn't enough it would overheat and shut off.

Pool side reporting 5.7Ths past 1hour, difficulty at 4096.

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

Quote from: Xtra7973 on October 23, 2014, 09:41:10 PM

Hey Phil, the link you have for the wire is 12 gauge 10 feet long. You said its 10 gauge and it really drops the watts. Just wondering if you used the 12 gauge in your link or if you used 10 gauge. I found 12/3 @ 25 feet for 27-28 bucks http://www.homedepot.com/p/Cerrowire-25-ft-12-Gauge-SJOOW-Rubber-Cord-Black-282-3603A/202564772?N=5yc1vZc57q or you can grab 15 feet of it from amazon if you have prime for 19 bucks here http://www.amazon.com/Coleman-Cable-25-Amp-12-Gauge-15-Feet/dp/B002G9TNFG I am just wondering what you use 10 or 12 before I order it. Also does anyone have these running on a RPI yet? I have the B+ model or should I go out and grab the old B model or just order the BE controller from crazy for .069 btc? Also just curious if its working with the latest minera image or is there a custom one to get them going. Thanks all

stupid mistake

here is my 10/3 link

http://www.ebay.com/itm/25ft-power-cable-wire-10-3-600v-30-amp-STROW-generator-power-cable-/261536109031?pt=LH_DefaultDomain_0&hash=item3ce4c451e7

good four 4 six foot cables

now I am currently using the first ebay link which is 12 awg and 10 feet long.

I dropped my power from 1070 with a 14/3 cable
to 1009 with a 25 foot 12/3 cable
to 988 with the 10 foot 12/3 cable which I thought was 10/3
I ordered a 25 foot piece of the 10/3 and will make a 6 foot cable.

So the 12 awg is good enough for the 1 evga 1300 psu or in my case 1 1200 watt seasonic platinum.

both the seasonic and the evga stock cables are 14/3 and they run warm.

I will post 10/3 cable results very soon.

Xtra7973

newbie

Activity: 47

Merit: 0

Quote from: stan258 on October 23, 2014, 10:32:27 PM

This is my first participation in any group buy. CrazyGuy helps relieve anxiety with prompt communication. Thanks

Im in the same boat stan. This is my first group buy as well, and Crazy is very good at answering questions for us not so proficient in group buys and all things that go with new hardware. I also have to publicly thank Phillipma1957. He goes into great detail with all his posts and explains everything he has going on with pictures as well. Great for someone new to all of things BTC. So thanks guys for sharing your knowledge. Crazy when you have that image for the PI ready please send a copy my way or can you post a link to it? I just want to make sure it works with the model B+ or I will just have to get an older B model or a BE controller from you. Thanks

stan258

sr. member

Activity: 440

Merit: 250

This is my first participation in any group buy. CrazyGuy helps relieve anxiety with prompt communication. Thanks

mrpark

sr. member

Activity: 364

Merit: 250

I don't need one right away, but I will need one eventually.

Quote from: CrazyGuy on October 23, 2014, 09:58:45 PM

Quote from: mrpark on October 23, 2014, 09:56:29 PM

so Batch #1 should buy the UART if they need it? Not sure if I need one yet since I got the controller.

Quote from: CrazyGuy on October 23, 2014, 09:38:47 PM

Thanks for the updates guys! Batch #2 should be arriving any day now and all units going forward will come with the USB-UART adapters. I'll be updating the pi image tonight in preperation for their arrival. Also, I have a few A10 Cubie boards, courtesy of Rockminer, so I may work on an image there as well. I'm starting to think that the 4 Prisma limit is really a limitation of the address space and not the raspberry pi, so I'm unsure if the Cubie will actually have any advantages.

Only if you need one early. I'll be sending the adapters out to batch 1 buyers that need them as well.

Topic: [CLOSED] ASICMiner Prisma 1.4th/s - 1.47 BTC - page 24. (Read 49921 times)