People are saying 1.6
Topic: [GROUP BUY WORLDWIDE]BTMine v1 Miner 200GH/s BTC 2.4 - page 8. (Read 97268 times)
If anyone is looking to buy more of these, I am selling mine (at a markup) over here.
GLWS they will all try to low ball..
eBay prices have dropped from $3K to $2K. Forum prices have traditionally been half that. With ANTMINERS being a much superior product and only $1200-ish, these Avalons with twice the power draw and high failure rate (even at stock speeds or less apparently) make these a LEMON
yup yup.. I agree..
Thanks for your suggestions...
T.
If anyone is looking to buy more of these, I am selling mine (at a markup) over here.
GLWS they will all try to low ball..
eBay prices have dropped from $3K to $2K. Forum prices have traditionally been half that. With ANTMINERS being a much superior product and only $1200-ish, these Avalons with twice the power draw and high failure rate (even at stock speeds or less apparently) make these a LEMON
yup yup.. I agree..
If anyone is looking to buy more of these, I am selling mine (at a markup) over here.
GLWS they will all try to low ball..
eBay prices have dropped from $3K to $2K. Forum prices have traditionally been half that. With ANTMINERS being a much superior product and only $1200-ish, these Avalons with twice the power draw and high failure rate (even at stock speeds or less apparently) make these a LEMON
If anyone is looking to buy more of these, I am selling mine (at a markup) over here.
GLWS they will all try to low ball..
WELL this sucks. I just got home to a dead unit that smells like it burnt itsself to a crisp! Power supplies were CORSAIR TX750 units that run all my ANTMINERS. Power draw was 900W last I tested (stock mhz). I had not touched the config of the BTMINE unit (default software) besides setting the pool. BOX WAS STILL RUNNING WITH NO FANS AND BURNT MY HAND TO THE TOUCH! FIRE HAZARD! Both power supplies power on and operate the tplink.
Box is cooling off now, took off the cover andwill see what happened soon - modules too hot to touch still!
UPDATE - BOTH POWER SUPPLIES OPERATE JUST FINE when not connected to the BTMINE box. Soon as I plug them in and turn it on with NO modules hooked up I get power for a couple seconds (fans spin up) then NOTHING. Power supply protection circuit kicks in. So looks like it has to be controller or power distribution board? Still toying
For the record I've owned over a dozen Avalons and never had an issue. This box yesterday for the first time dropped to 40GH for a bit (no reason) historically cgminer reported uptimes of about 3 days and about 2% HW errors... bummer!
Box is cooling off now, took off the cover and
UPDATE - BOTH POWER SUPPLIES OPERATE JUST FINE when not connected to the BTMINE box. Soon as I plug them in and turn it on with NO modules hooked up I get power for a couple seconds (fans spin up) then NOTHING. Power supply protection circuit kicks in. So looks like it has to be controller or power distribution board? Still toying
For the record I've owned over a dozen Avalons and never had an issue. This box yesterday for the first time dropped to 40GH for a bit (no reason) historically cgminer reported uptimes of about 3 days and about 2% HW errors... bummer!
If anyone is looking to buy more of these, I am selling mine (at a markup) over here.
5 and 14 are slow, but still working. They probably were not seated perfectly and when they were soldered a pin/connection was missed or they could be imperfect ships. It should be stable as they are and not degrade more as long as you don't have any fuses go!
Mtnminer
Mtnminer
It's up to you 
Daily average depends on pool's luck... it can be 0.07
Another question... is this ok count 5 and count 14?
11 is dead, I know
[match_work_count1] => 429705
[match_work_count2] => 430780
[match_work_count3] => 428498
[match_work_count4] => 428625
[match_work_count5] => 343086
[match_work_count6] => 426202
[match_work_count7] => 428601
[match_work_count8] => 429846
[match_work_count9] => 428026
[match_work_count10] => 430003
[match_work_count11] => 79
[match_work_count12] => 429089
[match_work_count13] => 429741
[match_work_count14] => 386279
[match_work_count15] => 429910
[match_work_count16] => 428767
Daily average depends on pool's luck... it can be 0.07
Another question... is this ok count 5 and count 14?
11 is dead, I know
[match_work_count1] => 429705
[match_work_count2] => 430780
[match_work_count3] => 428498
[match_work_count4] => 428625
[match_work_count5] => 343086
[match_work_count6] => 426202
[match_work_count7] => 428601
[match_work_count8] => 429846
[match_work_count9] => 428026
[match_work_count10] => 430003
[match_work_count11] => 79
[match_work_count12] => 429089
[match_work_count13] => 429741
[match_work_count14] => 386279
[match_work_count15] => 429910
[match_work_count16] => 428767
It's up to you
Daily average depends on pool's luck... it can be 0.07
Another question... is this ok count 5 and count 14?
11 is dead, I know
[match_work_count1] => 429705
[match_work_count2] => 430780
[match_work_count3] => 428498
[match_work_count4] => 428625
[match_work_count5] => 343086
[match_work_count6] => 426202
[match_work_count7] => 428601
[match_work_count8] => 429846
[match_work_count9] => 428026
[match_work_count10] => 430003
[match_work_count11] => 79
[match_work_count12] => 429089
[match_work_count13] => 429741
[match_work_count14] => 386279
[match_work_count15] => 429910
[match_work_count16] => 428767
Daily average depends on pool's luck... it can be 0.07
Another question... is this ok count 5 and count 14?
11 is dead, I know
[match_work_count1] => 429705
[match_work_count2] => 430780
[match_work_count3] => 428498
[match_work_count4] => 428625
[match_work_count5] => 343086
[match_work_count6] => 426202
[match_work_count7] => 428601
[match_work_count8] => 429846
[match_work_count9] => 428026
[match_work_count10] => 430003
[match_work_count11] => 79
[match_work_count12] => 429089
[match_work_count13] => 429741
[match_work_count14] => 386279
[match_work_count15] => 429910
[match_work_count16] => 428767
That is with just a little under 2 weeks. You got yours before the difficulty ran up. What are you averaging daily I am around .054.. But anyways My unit just got put up on ebay. Hopefully I get at least what i Payed for it. that would be tits..... Moving the Antiminers the power thing is just to much...
I have made $476.73 with my BTmine and 1 ASICminer V1 blade @ 210 to 230GHS.. What's other people pulling with their machines...
Why $?
I've made 1.88BTC in 29 days
Thank you for posting you power supply pictures. Your unit is using a different power supply the our BTmine units, who manufactured yours and how is the quality? Can you post more images of your Avalon clone.
Thank you
Mtnminer
I am using the original power supply.
You can see the photos following this link =>
http://imgur.com/a/YtyqQ
Chinese Brand: Great Wall
Power (i measured a maximum of 1050W)
Thank you
Mtnminer
Your fan speeds are excellent, is this with stock or upgraded power supplies.
Mtnminer
Here are my Fan Speed: (all at 1300Frequency) Room temperature 22/25°C
Machine 1=> Fan1:4080 / Fan2:3480 / Fan3:3360
Machine 2=> Fan1:3120 / Fan2:3120 / Fan3:3240
Machine 3=> Fan1:3240 / Fan2:3420 / Fan3:3360
Machine 4=> Fan1:3240 / Fan2:3120 / Fan3:3240
Mtnminer
What fan speeds are you seeing on your units. I am getting 2880 rpm on the upgraded power unit running at 1500 mhz. My other three units with the factory power supplies just can not keep the fan speeds up and I an running them under clocked until my other eight upgrade power supplies arrive. They are all running fan speeds at about 2280 rpm, if I raise the mhz the fans speeds drop and eventually quit due to the weak factory power supplies! One is still sitting cold just our of the box, waiting for the power supplies to arrive.
Mtnminer
Yep, there's no way you're going to be able to run at 1500 with those temps at that fan speed. If I don't do anything to the fan speed, I'm at 29 and 41 and I can run 1500 no problem with about 4% error, which is perfectly fine.
Mtnminer
Just wondering what is the best setup of fan speed that everyone is going for ?
Me after 3 weeks with my machines, the best combination for me is:
Chip Frequency(Default: 300) 1300 or 1400 (1500 drain too much energy, and increase the % of error too much so no point…
Target Temperature: 65
Overheat Cut Off Temperature: 75
More Options(Default: —quiet): --avalon-fan 20-20
These setup are giving me:
Temp1: 25
Temp2: 65
Temp3: -1
Me after 3 weeks with my machines, the best combination for me is:
Chip Frequency(Default: 300) 1300 or 1400 (1500 drain too much energy, and increase the % of error too much so no point…
Target Temperature: 65
Overheat Cut Off Temperature: 75
More Options(Default: —quiet): --avalon-fan 20-20
These setup are giving me:
Temp1: 25
Temp2: 65
Temp3: -1
Yep, there's no way you're going to be able to run at 1500 with those temps at that fan speed. If I don't do anything to the fan speed, I'm at 29 and 41 and I can run 1500 no problem with about 4% error, which is perfectly fine.
Here are my Fan Speed: (all at 1300Frequency) Room temperature 22/25°C
Machine 1=> Fan1:4080 / Fan2:3480 / Fan3:3360
Machine 2=> Fan1:3120 / Fan2:3120 / Fan3:3240
Machine 3=> Fan1:3240 / Fan2:3420 / Fan3:3360
Machine 4=> Fan1:3240 / Fan2:3120 / Fan3:3240
I am using the original power supply.
You can see the photos following this link =>
http://imgur.com/a/YtyqQ
Chinese Brand: Great Wall
Power (i measured a maximum of 1050W)
Hi back,
So for the factory i can only know the name in Chinese and the factory is located in Shenzhen.
(PM Me if interested and i will share the contact person if you want),
I am living in Hong Kong, so i went directly there to make sure it was legit and properly working (checked 4 factories before buying anything and found this one was much better than the other 3).
What kind of photos do you want to see ? Because honestly they all look the same pretty much. Just mine inside is extremely clean (all the cables are properly binded together, no missing screw, …) If you want anything specific let me know and i will try to take some photo for you.
So yes overall i am extremely happy with the quality.
I bought total 8 of them, and using actually only 4 of them for around a month now (because of power limitations in the warehouse i am running them).
So I just sold one machine 3days ago and shipped it already, and still have potentially 3 for sale (still hesitating to find a place to run them instead, but because of the noise and the power needed it's not that easy here in Hong Kong).
Thank you for posting you power supply pictures. Your unit is using a different power supply the our BTmine units, who manufactured yours and how is the quality? Can you post more images of your Avalon clone.
Thank you
Mtnminer
I am using the original power supply.
You can see the photos following this link =>
http://imgur.com/a/YtyqQ
Chinese Brand: Great Wall
Power (i measured a maximum of 1050W)
Thank you
Mtnminer
Your fan speeds are excellent, is this with stock or upgraded power supplies.
Mtnminer
Here are my Fan Speed: (all at 1300Frequency) Room temperature 22/25°C
Machine 1=> Fan1:4080 / Fan2:3480 / Fan3:3360
Machine 2=> Fan1:3120 / Fan2:3120 / Fan3:3240
Machine 3=> Fan1:3240 / Fan2:3420 / Fan3:3360
Machine 4=> Fan1:3240 / Fan2:3120 / Fan3:3240
Mtnminer
What fan speeds are you seeing on your units. I am getting 2880 rpm on the upgraded power unit running at 1500 mhz. My other three units with the factory power supplies just can not keep the fan speeds up and I an running them under clocked until my other eight upgrade power supplies arrive. They are all running fan speeds at about 2280 rpm, if I raise the mhz the fans speeds drop and eventually quit due to the weak factory power supplies! One is still sitting cold just our of the box, waiting for the power supplies to arrive.
Mtnminer
Yep, there's no way you're going to be able to run at 1500 with those temps at that fan speed. If I don't do anything to the fan speed, I'm at 29 and 41 and I can run 1500 no problem with about 4% error, which is perfectly fine.
Mtnminer
Just wondering what is the best setup of fan speed that everyone is going for ?
Me after 3 weeks with my machines, the best combination for me is:
Chip Frequency(Default: 300) 1300 or 1400 (1500 drain too much energy, and increase the % of error too much so no point…
Target Temperature: 65
Overheat Cut Off Temperature: 75
More Options(Default: —quiet): --avalon-fan 20-20
These setup are giving me:
Temp1: 25
Temp2: 65
Temp3: -1
Me after 3 weeks with my machines, the best combination for me is:
Chip Frequency(Default: 300) 1300 or 1400 (1500 drain too much energy, and increase the % of error too much so no point…
Target Temperature: 65
Overheat Cut Off Temperature: 75
More Options(Default: —quiet): --avalon-fan 20-20
These setup are giving me:
Temp1: 25
Temp2: 65
Temp3: -1
Yep, there's no way you're going to be able to run at 1500 with those temps at that fan speed. If I don't do anything to the fan speed, I'm at 29 and 41 and I can run 1500 no problem with about 4% error, which is perfectly fine.
Here are my Fan Speed: (all at 1300Frequency) Room temperature 22/25°C
Machine 1=> Fan1:4080 / Fan2:3480 / Fan3:3360
Machine 2=> Fan1:3120 / Fan2:3120 / Fan3:3240
Machine 3=> Fan1:3240 / Fan2:3420 / Fan3:3360
Machine 4=> Fan1:3240 / Fan2:3120 / Fan3:3240
I am using the original power supply.
You can see the photos following this link =>
http://imgur.com/a/YtyqQ
Chinese Brand: Great Wall
Power (i measured a maximum of 1050W)
Your fan speeds are excellent, is this with stock or upgraded power supplies.
Mtnminer
Here are my Fan Speed: (all at 1300Frequency) Room temperature 22/25°C
Machine 1=> Fan1:4080 / Fan2:3480 / Fan3:3360
Machine 2=> Fan1:3120 / Fan2:3120 / Fan3:3240
Machine 3=> Fan1:3240 / Fan2:3420 / Fan3:3360
Machine 4=> Fan1:3240 / Fan2:3120 / Fan3:3240
Mtnminer
What fan speeds are you seeing on your units. I am getting 2880 rpm on the upgraded power unit running at 1500 mhz. My other three units with the factory power supplies just can not keep the fan speeds up and I an running them under clocked until my other eight upgrade power supplies arrive. They are all running fan speeds at about 2280 rpm, if I raise the mhz the fans speeds drop and eventually quit due to the weak factory power supplies! One is still sitting cold just our of the box, waiting for the power supplies to arrive.
Mtnminer
Yep, there's no way you're going to be able to run at 1500 with those temps at that fan speed. If I don't do anything to the fan speed, I'm at 29 and 41 and I can run 1500 no problem with about 4% error, which is perfectly fine.
Mtnminer
Just wondering what is the best setup of fan speed that everyone is going for ?
Me after 3 weeks with my machines, the best combination for me is:
Chip Frequency(Default: 300) 1300 or 1400 (1500 drain too much energy, and increase the % of error too much so no point…
Target Temperature: 65
Overheat Cut Off Temperature: 75
More Options(Default: —quiet): --avalon-fan 20-20
These setup are giving me:
Temp1: 25
Temp2: 65
Temp3: -1
Me after 3 weeks with my machines, the best combination for me is:
Chip Frequency(Default: 300) 1300 or 1400 (1500 drain too much energy, and increase the % of error too much so no point…
Target Temperature: 65
Overheat Cut Off Temperature: 75
More Options(Default: —quiet): --avalon-fan 20-20
These setup are giving me:
Temp1: 25
Temp2: 65
Temp3: -1
Yep, there's no way you're going to be able to run at 1500 with those temps at that fan speed. If I don't do anything to the fan speed, I'm at 29 and 41 and I can run 1500 no problem with about 4% error, which is perfectly fine.
Here are my Fan Speed: (all at 1300Frequency) Room temperature 22/25°C
Machine 1=> Fan1:4080 / Fan2:3480 / Fan3:3360
Machine 2=> Fan1:3120 / Fan2:3120 / Fan3:3240
Machine 3=> Fan1:3240 / Fan2:3420 / Fan3:3360
Machine 4=> Fan1:3240 / Fan2:3120 / Fan3:3240
I am using the original power supply.
You can see the photos following this link =>
http://imgur.com/a/YtyqQ
Chinese Brand: Great Wall
Power (i measured a maximum of 1050W)
I have made $476.73 with my BTmine and 1 ASICminer V1 blade @ 210 to 230GHS.. What's other people pulling with their machines...
Mine averages about 215GH, stock clock, corsair 850 PSU's
Thank you for you words explaining the type of feelings I have had with this venture too! I am going to be so glad to get all my machines settled and hashing consistently.
As for you machine dropping 75% of it's hashing power, can you post the API Log from that miner. Perhaps I can help find the problem.
The wiki is down for the last couple of days as something is hogging the processing power for the whole server, I am trying to resolve this and get it back up and open. I have a lot more information to post.
Thank you
Mtnminer
As for you machine dropping 75% of it's hashing power, can you post the API Log from that miner. Perhaps I can help find the problem.
The wiki is down for the last couple of days as something is hogging the processing power for the whole server, I am trying to resolve this and get it back up and open. I have a lot more information to post.
Thank you
Mtnminer
I appreciate the response and also fully appreciate the time and effort people, like yourself, put into trying to help others; my thoughts weren't meant to challenge your conclusion. Like yourself, these BTMiners have been quite a journey is human emotions, from suspicion, to desire, to irrational panic buying, to concern, to utter deflation, to hope, to surprise, to realisation and finally to disappointment.
My situation gets stranger still, as one of the slow operating miners has been working at 200Ghs for the whole day, whilst I was at work, and then decides to take itself down to 40Ghs for my return. Maybe it has bitminerphobia
Also, mtnminer, have tried to connect to the Avalon wiki on http://www.newworldz.net/Chinese_Avalon_Clones but it has been unavailable for the last few days. Not too sure whether you're working on it.
My situation gets stranger still, as one of the slow operating miners has been working at 200Ghs for the whole day, whilst I was at work, and then decides to take itself down to 40Ghs for my return. Maybe it has bitminerphobia
Also, mtnminer, have tried to connect to the Avalon wiki on http://www.newworldz.net/Chinese_Avalon_Clones but it has been unavailable for the last few days. Not too sure whether you're working on it.
Actually is possible for two of your power supplies to be weak and on not weak. If poor quality component were used in the manufacturing of the power supplies they will not be consistent in performance from one to another. Electronic components have specs to certain tolerances.
You can buy many different resistors with the same value, but different ratings for the acceptable range of variation. 20%, 10% 5% and even 1% you pay more per piece for the more precision rating. The same with capacitors many may be rated the same for voltage and other ratings but have different heat tolerances. If the temp exceeds the specified tolerances the loose efficiency and can cease to function. This applies to almost every electronic component used in manufacturing a power supply.
As an RF Engineer (radio engineer) I had to be very careful with the specific parts and their tolerances as these parts were used to generate and control frequencies. We had to stay on frequency and within a very narrow margin of power output. Every part was exposed to rf and heat. There is much more involved in how parts react to these factors than I can explain in the response.
It is true you get what you pay for, these factors stated above are why some power supplies are more efficient and more reliable than others. These Chinese power supplies are very cheaply built and do not use high quality, precision parts and that is why they are flakey and unreliable.
I am sure there are others here who can vouch for what I am saying, if you desire take some time and do some research and you discover what I have said is true. If your one Chinese power supply is holding up, it means you were lucky and got on that exceeds the average!
Mtnminer
You can buy many different resistors with the same value, but different ratings for the acceptable range of variation. 20%, 10% 5% and even 1% you pay more per piece for the more precision rating. The same with capacitors many may be rated the same for voltage and other ratings but have different heat tolerances. If the temp exceeds the specified tolerances the loose efficiency and can cease to function. This applies to almost every electronic component used in manufacturing a power supply.
As an RF Engineer (radio engineer) I had to be very careful with the specific parts and their tolerances as these parts were used to generate and control frequencies. We had to stay on frequency and within a very narrow margin of power output. Every part was exposed to rf and heat. There is much more involved in how parts react to these factors than I can explain in the response.
It is true you get what you pay for, these factors stated above are why some power supplies are more efficient and more reliable than others. These Chinese power supplies are very cheaply built and do not use high quality, precision parts and that is why they are flakey and unreliable.
I am sure there are others here who can vouch for what I am saying, if you desire take some time and do some research and you discover what I have said is true. If your one Chinese power supply is holding up, it means you were lucky and got on that exceeds the average!
Mtnminer
Having similar fan problems with 2 of my 3 with factory standard PSU. However as there is one machine running at full speed, I'm amiss to think that the PSU's cannot provide enough power, as the 3rd one wouldn't mine at 200Ghs+.
Even taking the chip frequency down to 300 doesn't cause the fans to start.
Strangest behaviour is that from a cold start, machines and fans work fine. Problems start once they reach working temperature.
Even taking the chip frequency down to 300 doesn't cause the fans to start.
Strangest behaviour is that from a cold start, machines and fans work fine. Problems start once they reach working temperature.
What fan speeds are you seeing on your units. I am getting 2880 rpm on the upgraded power unit running at 1500 mhz. My other three units with the factory power supplies just can not keep the fan speeds up and I an running them under clocked until my other eight upgrade power supplies arrive. They are all running fan speeds at about 2280 rpm, if I raise the mhz the fans speeds drop and eventually quit due to the weak factory power supplies! One is still sitting cold just our of the box, waiting for the power supplies to arrive.
Mtnminer
Mtnminer
I have made $476.73 with my BTmine and 1 ASICminer V1 blade @ 210 to 230GHS.. What's other people pulling with their machines...
Pro-tip
go out and buy 10 M5x10mm screws for each device, they replace the screws that are too short for the heatsinks
go out and buy 10 M5x10mm screws for each device, they replace the screws that are too short for the heatsinks
I was able to remedy this by flashing the firmware mtnminer posted
I appreciate the response and also fully appreciate the time and effort people, like yourself, put into trying to help others; my thoughts weren't meant to challenge your conclusion. Like yourself, these BTMiners have been quite a journey is human emotions, from suspicion, to desire, to irrational panic buying, to concern, to utter deflation, to hope, to surprise, to realisation and finally to disappointment.
My situation gets stranger still, as one of the slow operating miners has been working at 200Ghs for the whole day, whilst I was at work, and then decides to take itself down to 40Ghs for my return. Maybe it has bitminerphobia
Also, mtnminer, have tried to connect to the Avalon wiki on http://www.newworldz.net/Chinese_Avalon_Clones but it has been unavailable for the last few days. Not too sure whether you're working on it.
My situation gets stranger still, as one of the slow operating miners has been working at 200Ghs for the whole day, whilst I was at work, and then decides to take itself down to 40Ghs for my return. Maybe it has bitminerphobia
Also, mtnminer, have tried to connect to the Avalon wiki on http://www.newworldz.net/Chinese_Avalon_Clones but it has been unavailable for the last few days. Not too sure whether you're working on it.
Actually is possible for two of your power supplies to be weak and on not weak. If poor quality component were used in the manufacturing of the power supplies they will not be consistent in performance from one to another. Electronic components have specs to certain tolerances.
You can buy many different resistors with the same value, but different ratings for the acceptable range of variation. 20%, 10% 5% and even 1% you pay more per piece for the more precision rating. The same with capacitors many may be rated the same for voltage and other ratings but have different heat tolerances. If the temp exceeds the specified tolerances the loose efficiency and can cease to function. This applies to almost every electronic component used in manufacturing a power supply.
As an RF Engineer (radio engineer) I had to be very careful with the specific parts and their tolerances as these parts were used to generate and control frequencies. We had to stay on frequency and within a very narrow margin of power output. Every part was exposed to rf and heat. There is much more involved in how parts react to these factors than I can explain in the response.
It is true you get what you pay for, these factors stated above are why some power supplies are more efficient and more reliable than others. These Chinese power supplies are very cheaply built and do not use high quality, precision parts and that is why they are flakey and unreliable.
I am sure there are others here who can vouch for what I am saying, if you desire take some time and do some research and you discover what I have said is true. If your one Chinese power supply is holding up, it means you were lucky and got on that exceeds the average!
Mtnminer
You can buy many different resistors with the same value, but different ratings for the acceptable range of variation. 20%, 10% 5% and even 1% you pay more per piece for the more precision rating. The same with capacitors many may be rated the same for voltage and other ratings but have different heat tolerances. If the temp exceeds the specified tolerances the loose efficiency and can cease to function. This applies to almost every electronic component used in manufacturing a power supply.
As an RF Engineer (radio engineer) I had to be very careful with the specific parts and their tolerances as these parts were used to generate and control frequencies. We had to stay on frequency and within a very narrow margin of power output. Every part was exposed to rf and heat. There is much more involved in how parts react to these factors than I can explain in the response.
It is true you get what you pay for, these factors stated above are why some power supplies are more efficient and more reliable than others. These Chinese power supplies are very cheaply built and do not use high quality, precision parts and that is why they are flakey and unreliable.
I am sure there are others here who can vouch for what I am saying, if you desire take some time and do some research and you discover what I have said is true. If your one Chinese power supply is holding up, it means you were lucky and got on that exceeds the average!
Mtnminer
Having similar fan problems with 2 of my 3 with factory standard PSU. However as there is one machine running at full speed, I'm amiss to think that the PSU's cannot provide enough power, as the 3rd one wouldn't mine at 200Ghs+.
Even taking the chip frequency down to 300 doesn't cause the fans to start.
Strangest behaviour is that from a cold start, machines and fans work fine. Problems start once they reach working temperature.
Even taking the chip frequency down to 300 doesn't cause the fans to start.
Strangest behaviour is that from a cold start, machines and fans work fine. Problems start once they reach working temperature.
What fan speeds are you seeing on your units. I am getting 2880 rpm on the upgraded power unit running at 1500 mhz. My other three units with the factory power supplies just can not keep the fan speeds up and I an running them under clocked until my other eight upgrade power supplies arrive. They are all running fan speeds at about 2280 rpm, if I raise the mhz the fans speeds drop and eventually quit due to the weak factory power supplies! One is still sitting cold just our of the box, waiting for the power supplies to arrive.
Mtnminer
Mtnminer
When did you email them and when did they respond? I have 3 units DOA and they won't email me back at all.
Feb 2 at about 8pm Central time (Chicago) I sent an email to [email protected] that included my order number, output from the cgminer API page, and description of shipping damage (broken capacitor, missing temp sensor, loose boards). I suggested that I could just send back the damaged board.
I got a response confirming that I could send back just the one damaged board and the RMA address at 9:56pm same evening (Feb 2).
One thing I would suggest in dealing with any company on the other side of the world is to try to time your emails so it hit their desk at 8am-ish local time. Best chance of getting noticed if it comes in fresh when they first log in in the morning.
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