Topic: Avalon ASIC users thread - page 149. (Read 438600 times)
All three of my fans don't work on my avalon and its due to something with the board they are plugged in. I know this because I tried another fan and it still didn't work. Is there a way to connect the fans to the power supply so they run all the time or is there a setting in which might be turned off.
trying to set solo mining up just now, but having some issue, avalon just won't connect. but when i plug an erupter in and open bfgminer with the right config it works?
Its just the stock PSU on the batch 2 units and some of the batch 1s (though most batch 1s use 650 I believe).
what brand psu?
what does it say for 12V rail? how many amps ?
Worth mentioning I blew up a 750 Watt stock PSU today running at 362 Mhz in a 3 module unit. I wouldn't recommend running 4 modules with an 860 watt based on this.
what brand psu?
Thanks I will give this a try!
See if this helps
http://wiki.openwrt.org/doc/howto/generic.sysupgrade#luci.web.upgrade.process
what you can do for now is plug it into your laptop computer and run cgminer 3.3.1 it should hot plug if you have a Ubuntu destro.
Do not forget to remove the jumper in order to stop power going to the usb port.
I upgraded lots of my units without a problem. Just had two issues. One 750 Power supply blew out and on another unit I bricked it on a firmware upgrade. Researching now how to fix it unless anyone here knows (I don't think it was a memory issue as my other 17 units are all basically the same).
See if this helps
http://wiki.openwrt.org/doc/howto/generic.sysupgrade#luci.web.upgrade.process
what you can do for now is plug it into your laptop computer and run cgminer 3.3.1 it should hot plug if you have a Ubuntu destro.
Do not forget to remove the jumper in order to stop power going to the usb port.
Careful upgrading to the latest firmware. I just bricked one of my units. It basically just got stuck at "OpenWrt - Flashing" and never recovered.
https://bitcointalksearch.org/topic/m.1657930
Worth mentioning I blew up a 750 Watt stock PSU today running at 362 Mhz in a 3 module unit. I wouldn't recommend running 4 modules with an 860 watt based on this.
what brand psu?
Worth mentioning I blew up a 750 Watt stock PSU today running at 362 Mhz in a 3 module unit. I wouldn't recommend running 4 modules with an 860 watt based on this.
what brand psu?
yes after a little fiddle i see what you mean.... once again i flashed the 19b firmware with max fans on a btach 1..... straight off the blue fan starts to struggle, so i unscrewed the back screws then lifted up the the top a little and this seems to get the blue fan spinning again at a nice speed........ placing the bots upside down on the sides keeps te gap open at a a bolts height around.....
will test it more tomorrow when i get PSU upgrades.... no point in taking it to bits tonight
will test it more tomorrow when i get PSU upgrades.... no point in taking it to bits tonight
that also works rather well.
I did the same thing and adjusted it to the proper gap and it cooled down the unit a few degrees however it is not a permanent solution.
I upgraded lots of my units without a problem. Just had two issues. One 750 Power supply blew out and on another unit I bricked it on a firmware upgrade. Researching now how to fix it unless anyone here knows (I don't think it was a memory issue as my other 17 units are all basically the same).
See if this helps
http://wiki.openwrt.org/doc/howto/generic.sysupgrade#luci.web.upgrade.process
what you can do for now is plug it into your laptop computer and run cgminer 3.3.1 it should hot plug if you have a Ubuntu destro.
Do not forget to remove the jumper in order to stop power going to the usb port.
I upgraded lots of my units without a problem. Just had two issues. One 750 Power supply blew out and on another unit I bricked it on a firmware upgrade. Researching now how to fix it unless anyone here knows (I don't think it was a memory issue as my other 17 units are all basically the same).
Yes same but it is always good idea to make sure there is free memory. I am not sure if you will be able to fix it without FLASH programer+Socket (unless boot loader is alive and there is recovery tftp procedure search openwrt/tplink forums). Try to mine with PC or make sure that there is no power in the usb cable from your broken unit and plug it in the hub of the other units. cgminer should be fine with two avalons connected to single WR703
I upgraded lots of my units without a problem. Just had two issues. One 750 Power supply blew out and on another unit I bricked it on a firmware upgrade. Researching now how to fix it unless anyone here knows (I don't think it was a memory issue as my other 17 units are all basically the same).
Careful upgrading to the latest firmware. I just bricked one of my units. It basically just got stuck at "OpenWrt - Flashing" and never recovered.
yantis,
Is it possible to recover from that somehow?
Careful upgrading to the latest firmware. I just bricked one of my units. It basically just got stuck at "OpenWrt - Flashing" and never recovered.
Also no shell access anymore?
Low mem issue? Did you check your free memory before upgrade. If wifi modules were loaded shit can happen
Remove wifi modules, disable cgminer from startup+monitoring script, reboot the unit before next upgrade make sure there is enough memory and then upgrade, enable what you need and go
Careful upgrading to the latest firmware. I just bricked one of my units. It basically just got stuck at "OpenWrt - Flashing" and never recovered.
Also no shell access anymore?
Careful upgrading to the latest firmware. I just bricked one of my units. It basically just got stuck at "OpenWrt - Flashing" and never recovered.
yes after a little fiddle i see what you mean.... once again i flashed the 19b firmware with max fans on a btach 1..... straight off the blue fan starts to struggle, so i unscrewed the back screws then lifted up the the top a little and this seems to get the blue fan spinning again at a nice speed........ placing the bots upside down on the sides keeps te gap open at a a bolts height around.....
will test it more tomorrow when i get PSU upgrades.... no point in taking it to bits tonight
will test it more tomorrow when i get PSU upgrades.... no point in taking it to bits tonight
Put a lighter/smoke near blue fan and guess what you will find out that air gets out not in that is why the fan is struggling. I went crazy about it i thought i messed the wires or good knows what until i found out
In short at max PWM air gets out from blue fan hole instead in = useless!
Unplug it, move temp sensor outside and seal it
yes after a little fiddle i see what you mean.... once again i flashed the 19b firmware with max fans on a btach 1..... straight off the blue fan starts to struggle, so i unscrewed the back screws then lifted up the the top a little and this seems to get the blue fan spinning again at a nice speed........ placing the bots upside down on the sides keeps te gap open at a a bolts height around.....
will test it more tomorrow when i get PSU upgrades.... no point in taking it to bits tonight
will test it more tomorrow when i get PSU upgrades.... no point in taking it to bits tonight
a tip to anyone who can find me replacement fans in the EU....... 36000 - 4000 rpm 120mm x 38mm
It is useless dude believe me, and main point is with air it needs to circulate. Which means that if fans are too strong compared to two fan holes for air out you do nothing, because pressure is too big.If you are keen on fans better idea is to install it in the right hole in th back near psu to suck hot air out
a tip to anyone who can find me replacement fans in the EU....... 36000 - 4000 rpm 120mm x 38mm
ok cool 
why do batch 2 not have this issue?
Because three fans are equal int therms of RPM i guess why do batch 2 not have this issue? But it does not mean that it does not has issue. third fan is useless when power supply is inside. just my opinion. It shall cool of the PSU but there are too many wires before air reaches the PSU. That is what i am thinking. Do what i did it is ugly wires and sensors outside but it works and PSU gets better cooling when it is outside. I changed stock 650W PSU and when i tried to close the box i just do not have the guts to stick all psu cables inside, which force me to do all this little by little
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