Which pool/setup?
Slush, using 2 local stratum proxies to balance out. I'm located in TX.
Topic: ASICMINER Auction: 50 Block Erupter Blades CHECK OP FOR PAYMENT - page 5. (Read 138636 times)
Slush, using 2 local stratum proxies to balance out. I'm located in TX.
What Efficiency are you guys receiving? I'm currently at 92.49% and the highest I've seen it at was 94%. Any tips to raise it up?
Total MHS: 12528
Received: 0000035408
Accepted: 0000035260
Per Minute: 171.15
Efficiency: 099.58%
Up Time: 0d,03h,26m,01s
Which pool/setup?
I see 99% efficiency with a local stratum proxy on 50BTC, and 97% with the same on EMC. I suspect this an EU/US difference, there's a bit more latency to EMC from me.
Not extensively tested other pools yet. Have you experimented with a few, do you get 92% on a few different ones? I think a local stratum proxy is probably the single biggest step though, that will help massively. I tried them direct to a getwork supporting pool for a bit and was in the 70% efficiency range, terrible.
I see 99% efficiency with a local stratum proxy on 50BTC, and 97% with the same on EMC. I suspect this an EU/US difference, there's a bit more latency to EMC from me.
Not extensively tested other pools yet. Have you experimented with a few, do you get 92% on a few different ones? I think a local stratum proxy is probably the single biggest step though, that will help massively. I tried them direct to a getwork supporting pool for a bit and was in the 70% efficiency range, terrible.
What Efficiency are you guys receiving? I'm currently at 92.49% and the highest I've seen it at was 94%. Any tips to raise it up?
I'm not confident to run those beauties in HIGH clock because I'm not sure what friedcat means by "if you are having heat problems".
Does anyone knows what configures a heat problem?
What is recommended operating temperature?
Where is the recommended place to measure temperature? Radiator? PCB? On top of hashing chip?
Does anyone knows what configures a heat problem?
What is recommended operating temperature?
Where is the recommended place to measure temperature? Radiator? PCB? On top of hashing chip?
Run them in high. If they get too hot, they'll restart and go into low clocks - that's your warning.
Too hot means the boards are resetting, although arguably we'd want these boards as close to room temp as possible.
I'd say radiator is the only place you can really measure.
How have you mounted the mini fans onto the heatsinks?
Hello!
My "setup" :
I'm not confident to run those beauties in HIGH clock because I'm not sure what friedcat means by "if you are having heat problems".
Does anyone knows what configures a heat problem?
What is recommended operating temperature?
Where is the recommended place to measure temperature? Radiator? PCB? On top of hashing chip?
[]'s
Figured I should post some pics of my setup too. The rack cost me about $10 to make (CPVC), everything from RONA.
best rack in this tread
but in my experience having blowers blowing air directly on heat-sink is must. Especially if room is hot and blade run on HIGH clock.
I hope you get it right
happy mining
happy mining
Don't get me wrong guys, I do appreciate your input and help - its just I'm the only one in my room groping these particular boards with this particular airflow.
Finally got round to setting up a stratum proxy (that was easy) to slush. Tried mining_proxy.exe -o stratum.btcguild.com -p 3333 to btcguild but it spams errors. I can't make sense of them but either way it doesn't send info to btcguild.
Dogie - I take my epic fail back (just humor) - but it just does look bad my friend - I'd cut the front (and back) off these drawers off and have a BIG fan blowing at them from the front. On the other hand it does sound like you have put thought into this and - good luck - let us know how you get on...
I hope you get it right
happy mining
happy mining
Don't get me wrong guys, I do appreciate your input and help - its just I'm the only one in my room groping these particular boards with this particular airflow.
Finally got round to setting up a stratum proxy (that was easy) to slush. Tried mining_proxy.exe -o stratum.btcguild.com -p 3333 to btcguild but it spams errors. I can't make sense of them but either way it doesn't send info to btcguild.
3rd attempt at mounting to reduce temps, ready for the new fans. This seems to be the approach most are taking, flat with a 1" gap underneath. This will be ventilated with the old 120mms once the new ones arrived.
Did you read this? https://docs.google.com/document/d/1VMO3VfIBy3KIwUaaQ8XhKrSVEbXeeMEqsVhhk6Bz9io/edit?pli=1
quote: "Please make it vertically placed if you could. The chips are packaged via QFN, but not all the heat are absorbed by the PCB. The back side will also become hot. And if you have no mechanical setting to lift it and have to lay it on the supporting table, please make sure that there are no heat isolation material under it."
Why did no one read what I actually posted :/ "flat with a 1" gap underneath."
The gap still traps the hot air without any ventillation.
It's easy to mount it on it's edge (again, check lightbox's comments) and you can easily create an air channel, using cardboard or plastic.
here's a crappy sketch: https://dl.dropboxusercontent.com/u/8310142/cooling.png
That was my initial config and it wasn't even close to sufficient because of the inability to force the fans onto the heatsinks. There is actually quite strong airflow underneath and the mini fans on the side blow under there. Because its quite a confined area a small amount of conventional airflow pushes all the way through as there is no where for the pressure to escape.
I can feel the flow underneath and its as strong as when it was standing. I'll check underneath temps and temps of the box walls etc after 4 hours of uptime.
I hope you get it right
happy mining
3rd attempt at mounting to reduce temps, ready for the new fans. This seems to be the approach most are taking, flat with a 1" gap underneath. This will be ventilated with the old 120mms once the new ones arrived.
Did you read this? https://docs.google.com/document/d/1VMO3VfIBy3KIwUaaQ8XhKrSVEbXeeMEqsVhhk6Bz9io/edit?pli=1
quote: "Please make it vertically placed if you could. The chips are packaged via QFN, but not all the heat are absorbed by the PCB. The back side will also become hot. And if you have no mechanical setting to lift it and have to lay it on the supporting table, please make sure that there are no heat isolation material under it."
Why did no one read what I actually posted :/ "flat with a 1" gap underneath."
The gap still traps the hot air without any ventillation.
It's easy to mount it on it's edge (again, check lightbox's comments) and you can easily create an air channel, using cardboard or plastic.
here's a crappy sketch: https://dl.dropboxusercontent.com/u/8310142/cooling.png
That was my initial config and it wasn't even close to sufficient because of the inability to force the fans onto the heatsinks. There is actually quite strong airflow underneath and the mini fans on the side blow under there. Because its quite a confined area a small amount of conventional airflow pushes all the way through as there is no where for the pressure to escape.
I can feel the flow underneath and its as strong as when it was standing. I'll check underneath temps and temps of the box walls etc after 4 hours of uptime.
3rd attempt at mounting to reduce temps, ready for the new fans. This seems to be the approach most are taking, flat with a 1" gap underneath. This will be ventilated with the old 120mms once the new ones arrived.
Did you read this? https://docs.google.com/document/d/1VMO3VfIBy3KIwUaaQ8XhKrSVEbXeeMEqsVhhk6Bz9io/edit?pli=1
quote: "Please make it vertically placed if you could. The chips are packaged via QFN, but not all the heat are absorbed by the PCB. The back side will also become hot. And if you have no mechanical setting to lift it and have to lay it on the supporting table, please make sure that there are no heat isolation material under it."
Why did no one read what I actually posted :/ "flat with a 1" gap underneath."
The gap still traps the hot air without any ventillation.
It's easy to mount it on it's edge (again, check lightbox's comments) and you can easily create an air channel, using cardboard or plastic.
here's a crappy sketch: https://dl.dropboxusercontent.com/u/8310142/cooling.png
3rd attempt at mounting to reduce temps, ready for the new fans. This seems to be the approach most are taking, flat with a 1" gap underneath. This will be ventilated with the old 120mms once the new ones arrived.
Did you read this? https://docs.google.com/document/d/1VMO3VfIBy3KIwUaaQ8XhKrSVEbXeeMEqsVhhk6Bz9io/edit?pli=1
quote: "Please make it vertically placed if you could. The chips are packaged via QFN, but not all the heat are absorbed by the PCB. The back side will also become hot. And if you have no mechanical setting to lift it and have to lay it on the supporting table, please make sure that there are no heat isolation material under it."
Why did no one read what I actually posted :/ "flat with a 1" gap underneath."
Dogie, take the blade out of the box. The chips on the opposite side of the board need air circulation. I would try to set the blade on its edge, heat-sink on the bottom. Get two 120mm case fans and park them in front of the heat-sink with air going away from the sink. I added a third fan today and have it pointed across the power supply module, it was getting a little too hot for comfort. The third fan blows air across the length of the module, not directly on it.
The blades aren't meant to be resting on anything that would stifle air flow across it.
The blades aren't meant to be resting on anything that would stifle air flow across it.
They're actually on 1" stilts and can raise them up more. Will have 2x120mms blowing sideways across/under the boards. I've tried 3 different configs and this is by far the coolest, and will get even cooler with the new fans tomorrow.
Power boards have their own mini fans, will have bigger ones soon.
That's going to be an epic fail...
..why?
3rd attempt at mounting to reduce temps, ready for the new fans. This seems to be the approach most are taking, flat with a 1" gap underneath. This will be ventilated with the old 120mms once the new ones arrived.
Did you read this? https://docs.google.com/document/d/1VMO3VfIBy3KIwUaaQ8XhKrSVEbXeeMEqsVhhk6Bz9io/edit?pli=1
quote: "Please make it vertically placed if you could. The chips are packaged via QFN, but not all the heat are absorbed by the PCB. The back side will also become hot. And if you have no mechanical setting to lift it and have to lay it on the supporting table, please make sure that there are no heat isolation material under it."
3rd attempt at mounting to reduce temps, ready for the new fans. This seems to be the approach most are taking, flat with a 1" gap underneath. This will be ventilated with the old 120mms once the new ones arrived.
As it has been said before, this approach is the worst, because the fans are just circulating the heat around the blade. The goal is to transfer the heat from around the blade.
The problem with turning the fans into a pull config is that there isn't a seal, or anything close to a seal on the fans. They'll just spam all their pressure sucking in the non heatsink air because its so much easier to move. At least with a push config it has to go into the heatsink.
These blades seem to be a pain in the butt. I'll take one for the team. I'm willing to adopt them and give them a home.
That's going to be an epic fail...
Dogie, take the blade out of the box. The chips on the opposite side of the board need air circulation. I would try to set the blade on its edge, heat-sink on the bottom. Get two 120mm case fans and park them in front of the heat-sink with air going away from the sink. I added a third fan today and have it pointed across the power supply module, it was getting a little too hot for comfort. The third fan blows air across the length of the module, not directly on it.
The blades aren't meant to be resting on anything that would stifle air flow across it.
The blades aren't meant to be resting on anything that would stifle air flow across it.
3rd attempt at mounting to reduce temps, ready for the new fans. This seems to be the approach most are taking, flat with a 1" gap underneath. This will be ventilated with the old 120mms once the new ones arrived.
As it has been said before, this approach is the worst, because the fans are just circulating the heat around the blade. The goal is to transfer the heat from around the blade.
The problem with turning the fans into a pull config is that there isn't a seal, or anything close to a seal on the fans. They'll just spam all their pressure sucking in the non heatsink air because its so much easier to move. At least with a push config it has to go into the heatsink.
Did any of you have PSU problems? I mean - when i set the clock to "high" it just cuts off the power. I need to reconnect PSU's wire again, to make it work. (im doing this manualy by connecting green+black wire on http://www.nordichardware.com/skrivelser_img/432/psu.atx.jpg )
Im using CX600W corsair PSU, one blade, 3x12cm fans connected. They've been used with gpu's previously, so they ARE efficient enough for me not to worry about temperature. It happens whenever i power on while on "high" and whenever i change the clock to high.
"Low" clock works and hashes fine.
Although, when i connect the PSU to motherboard and all the usual garbage with it, it works perfectly.
What is the problem? Did i miss something?
Im using CX600W corsair PSU, one blade, 3x12cm fans connected. They've been used with gpu's previously, so they ARE efficient enough for me not to worry about temperature. It happens whenever i power on while on "high" and whenever i change the clock to high.
"Low" clock works and hashes fine.
Although, when i connect the PSU to motherboard and all the usual garbage with it, it works perfectly.
What is the problem? Did i miss something?
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