ANTMINER C1 Discussion and Support Thread - page 48.

dogie

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Quote from: opentoe on December 27, 2014, 07:43:18 PM

Quote from: dogie on December 27, 2014, 08:20:34 AM

Quote from: opentoe on December 27, 2014, 07:22:39 AM

Quote from: Antuam on December 27, 2014, 03:57:38 AM

Hello

Opentoe, I know one person with the same problem with one C1 bath 1.

We configure the miners with standard voltage 0725, the chips to 256Mhz save and aply. Wait 1 minute for save and apply and turn off the miner 1 minutes. Turn on and wait 10 minutes. In the hash rate is less of 900Gh, we continue turn off, wait 1 minute and turn on again until the hast rate is near or 1Th.

Please, is important wait 1 minutes between turn off and turn on.

Regards.
Antuam.

Really? This is actually a batch 2 unit, but anything to try I guess. The longer it runs, the lower the hashrate. So I'm thinking a buggy firmware with a memory leak that's killing it because when I power cycle it, jumps back up to 1005TH and then slowly starts dropping, real slow.

I'll try this "trick" once it gets back down to 900 again.

Thanks.

Which pool is it on? I don't think its the solution but worth a shot.

I tried Ghash and BTCGUILD. Both steadily dropped the hashing rate to 900 on two of thrm now. Regretting a little a bought 6 of them dince only two are performing at spec.

I don't have a solution for this unfortunately, although the only indication is that you have 4/6 units which degrade over time and its not a widely reported problem. Can you think of anything environmental that might be contributing? Circuits maxing out / getting warmer? I'm sure you're setup is good though.

dogie

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Quote from: dunand on December 27, 2014, 08:36:22 PM

Simple harness mod to control voltage for the radiator fans. The radiators fans makes too much noise on 12v. I want to run the pump on 12v and choose the voltage to power the fans between 12v, 8.7v, 7v and 5v!

I have a second batch harness with a 6-pin connector. I changed wires from the connectors with 4 18awg wires. The 4 wires are connected to 12v, 5v, 3.3v and ground from an aux connector on the power supply. I added a terminal strip to choose which voltage I want to use. The best setting I found is to run the fans on 7v (12v-5v). At 7v I barely notice the noise and the temperature is only 1 or 2 degrees higher. At 5v I have to look to know if the fans are running but it is a little bit less efficient at cooling and the miner fan need to run faster to compensate.

For any kids reading, tape up your open terminals Tongue

dogie

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Quote from: navigatrix on December 27, 2014, 06:08:35 PM

Question for dogie or anyone else more electically inclined than me:

I had 2 S3+'s on a 1000W EVGA G2 80+ gold PSU, and the meter showed they were using 1050 w! I put them on a 1300w EVGA and they immediately metered at just under 800w (expected as the frequencies are bumped a bit).
I put the C1 on the same 1000W PSU and it meters at 816 and no problem.
Anyone have an idea of why the high watts with the S3's?

That..... doesn't particularly make any sense, S3s shouldn't get even near to that (like 300W-400W lower). As long as you're mining okay now is the important bit.

notlist3d

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For those looking for way to do fan (constant level) I still stand by this being best way I have found.

http://www.amazon.com/Phobya-4-Pin-3-Pin-Splitter-Connection/dp/B007S3T4O0/

Molex cable is not used by anything in most C1 installs so use one of those to this and you have 6 3 pin connectors.

soy

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Quote from: dunand on December 27, 2014, 08:36:22 PM

Simple harness mod to control voltage for the radiator fans. The radiators fans makes too much noise on 12v. I want to run the pump on 12v and choose the voltage to power the fans between 12v, 8.7v, 7v and 5v!

I have a second batch harness with a 6-pin connector. I changed wires from the connectors with 4 18awg wires. The 4 wires are connected to 12v, 5v, 3.3v and ground from an aux connector on the power supply. I added a terminal strip to choose which voltage I want to use. The best setting I found is to run the fans on 7v (12v-5v). At 7v I barely notice the noise and the temperature is only 1 or 2 degrees higher. At 5v I have to look to know if the fans are running but it is a little bit less efficient at cooling and the miner fan need to run faster to compensate.

How are you getting the 7vdc?

dunand

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Simple harness mod to control voltage for the radiator fans. The radiators fans makes too much noise on 12v. I want to run the pump on 12v and choose the voltage to power the fans between 12v, 8.7v, 7v and 5v!

I have a second batch harness with a 6-pin connector. I changed wires from the connectors with 4 18awg wires. The 4 wires are connected to 12v, 5v, 3.3v and ground from an aux connector on the power supply. I added a terminal strip to choose which voltage I want to use. The best setting I found is to run the fans on 7v (12v-5v). At 7v I barely notice the noise and the temperature is only 1 or 2 degrees higher. At 5v I have to look to know if the fans are running but it is a little bit less efficient at cooling and the miner fan need to run faster to compensate.

Sakarias-Corporation

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Call me Alice. just Alice.

Quote from: tarmi on December 27, 2014, 08:15:58 PM

Quote from: Sakarias-Corporation on December 27, 2014, 08:14:00 PM

So i got a C1 from Bitmain. guess what ? there were RUST EVERYWHERE! in the screws, water block, on the board itself, the link between the Blocks was broken and i and to replace it. the board itself was wet from Rust-water. my C1 was shipped filled with water that leaked out allover the C1 and Destroyed it. i managed to repair it for 100 Dollar, but was given No compensation what so ever.

when did you order?

it arrived for 1 week and 6 days ago. so just a couple of days before that. shipping was Fast.

tarmi

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Quote from: Sakarias-Corporation on December 27, 2014, 08:14:00 PM

So i got a C1 from Bitmain. guess what ? there were RUST EVERYWHERE! in the screws, water block, on the board itself, the link between the Blocks was broken and i and to replace it. the board itself was wet from Rust-water. my C1 was shipped filled with water that leaked out allover the C1 and Destroyed it. i managed to repair it for 100 Dollar, but was given No compensation what so ever.

when did you order?

Sakarias-Corporation

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Activity: 574

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Call me Alice. just Alice.

So i got a C1 from Bitmain. guess what ? there were RUST EVERYWHERE! in the screws, water block, on the board itself, the link between the Blocks was broken and i and to replace it. the board itself was wet from Rust-water. my C1 was shipped filled with water that leaked out allover the C1 and Destroyed it. i managed to repair it for 100 Dollar, but was given No compensation what so ever.

opentoe

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Personal text my ass....

Quote from: dogie on December 27, 2014, 08:20:34 AM

Quote from: opentoe on December 27, 2014, 07:22:39 AM

Quote from: Antuam on December 27, 2014, 03:57:38 AM

Hello

Opentoe, I know one person with the same problem with one C1 bath 1.

We configure the miners with standard voltage 0725, the chips to 256Mhz save and aply. Wait 1 minute for save and apply and turn off the miner 1 minutes. Turn on and wait 10 minutes. In the hash rate is less of 900Gh, we continue turn off, wait 1 minute and turn on again until the hast rate is near or 1Th.

Please, is important wait 1 minutes between turn off and turn on.

Regards.
Antuam.

Really? This is actually a batch 2 unit, but anything to try I guess. The longer it runs, the lower the hashrate. So I'm thinking a buggy firmware with a memory leak that's killing it because when I power cycle it, jumps back up to 1005TH and then slowly starts dropping, real slow.

I'll try this "trick" once it gets back down to 900 again.

Thanks.

Which pool is it on? I don't think its the solution but worth a shot.

I tried Ghash and BTCGUILD. Both steadily dropped the hashing rate to 900 on two of thrm now. Regretting a little a bought 6 of them dince only two are performing at spec.

navigatrix

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Quote from: soy on December 27, 2014, 03:16:46 PM

My C1 might arrive on Monday, day after tomorrow. I'm looking forward to laying eyes on one of these machines.

Mine arrived last week. (It was totally a 'gotta have that gadget' buy.) I bought the batch 1 with the cooling rig.

It was a blast to put together and looks like it belongs on the Tardis. Besides being a power hog (816 watts), it is working.
For awhile the hash rate was gyrating between 600 and 1400 GHs but it has leveled out. I'm not sure why. Yesterday I re-arranged my setup and took measurements with my Kill-a-watt power strip, so all of my miners were turned on and off several times.

Since I have the radiator sitting in an open window, I may turn the fans around so they suck the cool outside air in, rather than blow the inside air out. Can't turn the whole radiator around because of the plumbing.

Question for dogie or anyone else more electically inclined than me:

I had 2 S3+'s on a 1000W EVGA G2 80+ gold PSU, and the meter showed they were using 1050 w! I put them on a 1300w EVGA and they immediately metered at just under 800w (expected as the frequencies are bumped a bit).
I put the C1 on the same 1000W PSU and it meters at 816 and no problem.
Anyone have an idea of why the high watts with the S3's?

dogie

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Quote from: Tupsu on December 27, 2014, 02:05:13 PM

Quote from: dogie on December 27, 2014, 08:22:23 AM

..... It looks like its a fixed voltage pump with the 4th pin unconnected to the actual harness. The other 3 pins would be +12, -ve and rpm sens.

dogie- You're wrong again.
Write the better things that you know.

C1 not only regulate pump speed, C1 even shows the speed of the pump.

I said I think, no need to be so aggressive. Then, when using the harness, its varying the voltage of everything on it down. But to answer the original question, its not using PWM.

soy

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My C1 might arrive on Monday, day after tomorrow. I'm looking forward to laying eyes on one of these machines.

grn

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Quote from: soy on December 26, 2014, 10:13:36 PM

Quote from: grn on December 26, 2014, 09:49:45 PM

You could plug the pump directly to one of the hashing board headers

Has anyone tried this? Could feedback response time be a problem? Constantly running the pump at a set speed that would be less a problem but slow that fluid down and this could warm up quickly.

I suspect I will absolutely need an outdoor pre-cooler once it gets warm this spring. I have a thermostat circuit I use for a DIY egg incubator. Less difficult controlling a 12vdc pump to put water onto an outdoor pre-cooler that will have air passing over it. The system isn't pressurized so the sensor can be mounted in the water outflow of the pre-cooler. I lived in Tuson back in the early 1970's and the place had a cooler on the roof. A large box-like enclosure with the 4 sides having material much like air conditioning filter material. Water would pass down thru the material and in the center air was sucked into the home. It's very dry in Arizona so it worked there without the home becoming too humid. Running water over an outdoor pre-cooler wouldn't raise the humidity of the home here. Georgia is much more humid than Arizona.

My first 2 are still set up like this (didn't like the look of the supplied harness) I have one pair of fans on a splitter, pump, main fan, one rad fan direct to pcb. The pump is variable and quieter connected this way but temps are about 1deg higher.

Tupsu

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Quote from: dogie on December 27, 2014, 08:22:23 AM

..... It looks like its a fixed voltage pump with the 4th pin unconnected to the actual harness. The other 3 pins would be +12, -ve and rpm sens.

dogie- You're wrong again.
Write the better things that you know.

C1 not only regulate pump speed, C1 even shows the speed of the pump.

Antuam

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Activity: 1722

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I'll try this "trick" once it gets back down to 900 again.

Thanks.

[/quote]

Or you can put something in Schedules Tasks for reboot the miner.

In S3, I write it to reboot each 6 hours.

0 */6 * * * /sbin/reboot

Regards.
Antuam

dogie

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Quote from: notlist3d on December 26, 2014, 10:49:27 PM

Quote from: soy on December 26, 2014, 10:13:36 PM

Quote from: grn on December 26, 2014, 09:49:45 PM

You could plug the pump directly to one of the hashing board headers

Has anyone tried this? Could feedback response time be a problem? Constantly running the pump at a set speed that would be less a problem but slow that fluid down and this could warm up quickly.

I suspect I will absolutely need an outdoor pre-cooler once it gets warm this spring. I have a thermostat circuit I use for a DIY egg incubator. Less difficult controlling a 12vdc pump to put water onto an outdoor pre-cooler that will have air passing over it. The system isn't pressurized so the sensor can be mounted in the water outflow of the pre-cooler. I lived in Tuson back in the early 1970's and the place had a cooler on the roof. A large box-like enclosure with the 4 sides having material much like air conditioning filter material. Water would pass down thru the material and in the center air was sucked into the home. It's very dry in Arizona so it worked there without the home becoming too humid. Running water over an outdoor pre-cooler wouldn't raise the humidity of the home here. Georgia is much more humid than Arizona.

The first harness did this it was not the greatest. If you make one with higher quality wire and keep wires from touching each other it could work.

I would personally go for molex to fan connector. You get a constant speed. With it you don't get a variable speed, but you will always have it being powered when unit is on. Also saves troubles you will see twords first of thread.

That cable wouldn't send any PWM signals and I don't believe the pump would accept them anyway. It looks like its a fixed voltage pump with the 4th pin unconnected to the actual harness. The other 3 pins would be +12, -ve and rpm sens.

dogie

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Quote from: opentoe on December 27, 2014, 07:22:39 AM

Quote from: Antuam on December 27, 2014, 03:57:38 AM

Hello

Opentoe, I know one person with the same problem with one C1 bath 1.

We configure the miners with standard voltage 0725, the chips to 256Mhz save and aply. Wait 1 minute for save and apply and turn off the miner 1 minutes. Turn on and wait 10 minutes. In the hash rate is less of 900Gh, we continue turn off, wait 1 minute and turn on again until the hast rate is near or 1Th.

Please, is important wait 1 minutes between turn off and turn on.

Regards.
Antuam.

Really? This is actually a batch 2 unit, but anything to try I guess. The longer it runs, the lower the hashrate. So I'm thinking a buggy firmware with a memory leak that's killing it because when I power cycle it, jumps back up to 1005TH and then slowly starts dropping, real slow.

I'll try this "trick" once it gets back down to 900 again.

Thanks.

Which pool is it on? I don't think its the solution but worth a shot.

opentoe

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Activity: 1274

Merit: 1000

Personal text my ass....

Quote from: Antuam on December 27, 2014, 03:57:38 AM

Hello

Opentoe, I know one person with the same problem with one C1 bath 1.

We configure the miners with standard voltage 0725, the chips to 256Mhz save and aply. Wait 1 minute for save and apply and turn off the miner 1 minutes. Turn on and wait 10 minutes. In the hash rate is less of 900Gh, we continue turn off, wait 1 minute and turn on again until the hast rate is near or 1Th.

Please, is important wait 1 minutes between turn off and turn on.

Regards.
Antuam.

Really? This is actually a batch 2 unit, but anything to try I guess. The longer it runs, the lower the hashrate. So I'm thinking a buggy firmware with a memory leak that's killing it because when I power cycle it, jumps back up to 1005TH and then slowly starts dropping, real slow.

I'll try this "trick" once it gets back down to 900 again.

Thanks.

aclass

sr. member

Activity: 381

Merit: 251

That's one hell of a hack

Quote from: Antuam on December 27, 2014, 03:57:38 AM

Hello

Opentoe, I know one person with the same problem with one C1 bath 1.

We configure the miners with standard voltage 0725, the chips to 256Mhz save and aply. Wait 1 minute for save and apply and turn off the miner 1 minutes. Turn on and wait 10 minutes. In the hash rate is less of 900Gh, we continue turn off, wait 1 minute and turn on again until the hast rate is near or 1Th.

Please, is important wait 1 minutes between turn off and turn on.

Regards.
Antuam.

Topic: ANTMINER C1 Discussion and Support Thread - page 48. (Read 129054 times)