Con,

Seems i got it working stable

Batch ONE unit with unmodified WR703 powered from molex/USB HUB just for power - PSU. Jumper 5 Removed, and FPGA connected directly to WR703 USB. ftdi/usbserial drivers removed, Wifi drivers removed also


The results

Elapsed 1day 16h 56m 52s   
Difficulty Accepted: 2907218.00000000 1183.30/m 84704.14 - MHS

Clock is set to auto moving between 357-362

Thank you

PS: you read my mind - two great options

--avalon-fan <arg> Set fanspeed percentage for avalon, single value or range (default: 20-100)
--avalon-freq <arg> Set frequency range for avalon-auto, single value or range

Thank you Con 
My grammar sucks no spell checker around. Buy the way do you get usb disconnects? How often do you need to restart your unit. My batch 2 is coming shortly and i will have some clue what is going on with USB there. I have removed ftdi driver, tried direct usb connection to various hosts including PC and USB just disconnects from time to times. If i wait long enough it reconnects and all is fine. I did it just once otherwise reboot not to waste time
 
Can you comment?
 

Bump...
Any news someone? Mails/units comming? If yes what was the ammount paod per unit?

With Ambiniet about 15C. Temp1 is showing at lest +5 when mounted inside

PS: by the way i am prety sure that all reboots/hangs are due to USB disconect issues. I have tried whatever i can but mu unit needs rebot twice per day.

1. About cables - connecting more cables is always better idea to spread the load. As minimum you need three and they are enough
2. About brick - Never do two things at once - a jeneral rule one step forward so you can get back I am very sure that it was loose USb. When avaon is powered up the wr703 boots after 5 secs or so. Menwhile green led is flashing. when 703 finds USB (or cgminer starts) led goes off. So it was usb cable or cgminer not starting or having bad cgminer options left when you downgrade/upgrade and so on
as you see avalon is not there not found

ssh to unit and post dmesg output pls

USB!
Cable is unpluged or loose

And connect all cables as advised - mandatory

Brilliant BKK!

It was about time 

BKK,

Would you be so kind to update git and include latest version of cgminer driver?

I am curious to look at it.

Also do you think that hash precalc shall be done buy the PIC or cgminer? The prsumption is that there are much more resources in mining host compared to PIC

10X

PS: I am waiting for daily summary update impatiently

Best

+1 for bitminter also!

I guess it is TPS power converter and to much noise in avalon chips power. Just a guess. At that clock TPS my be driven at abot 90% of it's capacity. I am still waiting for someone to measure accurately chip consumption at 1.2V when overclocked.  

what does it say for 12V rail? how many amps ?

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

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

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

Is it still working

And ROI tends to be infinity?

Good luck to the happy buyer and pls  french fries for free also

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

Because three fans are equal int therms of RPM i guess 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

Yeah I know....It may go up to 450 who knows 
It will run for a few more hours and i will leave it at 355 probably

Dude,
What i did.
1. Removed PSU outside - Ugly hack
2. The PSU hole was sealed to avoid air out
3. The blue fan unplugged/disconnected
4. Tmp sensor mounted outside
5. Blue fan hole sealed to avoid air out

Result:

All temps went down 3-4 degrees Ambient stays constant air conditioned
Result with latest FW - auto-clock between 357-361

Difficulty Accepted:118964.00000000 1191.43/m 85285.68Mhs ACCEPTED BY THE POOL
Up time:   1h 39m 51s

And I am Happy Thanks CON!!!