Quote from: PuertoLibre on September 13, 2013, 09:49:58 PM

Quote from: exahash on September 13, 2013, 09:17:52 PM

Quote from: PuertoLibre on September 13, 2013, 05:03:40 PM

Quote from: exahash on September 13, 2013, 04:28:38 PM

Just my luck... another burnt part, in a different unit. Unlike my other one there were no unusual symptoms beforehand. Same settings as the last unit.

Now I'm wondering if unplugging the affected miner from the bus would work. Might be tough to do, but it would let me use the other seven miners on that module without having to try and repair the broken one.

I suspect you might just be overclocking way too aggressively.

I have mine (Batch 1) overlcocked to 350 (constant) and I don't let it pass from 45C. The fans are set to 40%-100% with them running mostly at about 2000 to 2400 RPM~. Note: That is because I am using dust filters on the intake. So if I take them off the fan RPM would go even lower....but the unit become dirty on the inside and needs to be cleaned out.

I let avalon-auto do the overclocking. 350 is where this one was staying, for days and days. Fans are at 100%, it's a batch 3 and the temp always hovered in the mid 60's.

Perhaps the recommendations being adhered to were by a very good batch 3 that could take thermals that high?

Yours seems to be suffering...if a third module goes out then I think we can probably say that not all Avalon Batch 3's should be allowed to go that high in temps. Especially when Avalon usually has a very poor thermal interface with the metal heatsink.

Oh and I also have a heavy duty laptop cooler beneath my Avalon Batch 1 to cool the bottom aluminum plate.

http://www.amazon.com/gp/product/B004G603E2/ref=oh_details_o03_s02_i00?ie=UTF8&psc=1

You might be right about the recommended temp being too high. I'm torn between keeping my two unaffected units on avalon-auto up to 350Mhz and 70c (to squeeze out every last satoshi while I can), and lowering the target temp to prolong their lives.