Bitcoin Forum

need some help

for some reason, the miner has been stoppping every now and then and refuses to restart mining unless i manually power down.

it was running at 350mhz for sometime and running fine. so i tried running at 355mhz but it stops every few hours so i lowered it to 350mhz


firmware: 20130703

when the miner stops hasing, it reboots and the elaspe timer resets but the hashrate, temps and fan speeds all show 0


as for cooling, i've added heatsinks to the side of the case (where the main heatsinks are mounted), added thermal paste between the main heatsinks and case (the contact between the heatsinks and case) and added 2 exhaust fans

6hrs ago it stopped mining when i checked the miner's page, the time elasped was just 1min, meaning the miner had restarted a min ago. so for 6hrs, it was doing nothing?


I mean, so 1 min ago, it restarted on its own but not yet hashing?

what was it doing during the 6hrs and why isn't it restarting and hashing?

I believe it might be something in a recent firmware. I too had this occur, perfectly stable machine for days on end, then decided it wasn't happy. Would restart several times, then get stuck on 100% hardware until physically restarted. Then back to happy happy happy.

i havent updated the firmware

it was the one that came with the unit and it was hashing for 25hrs continuously at 1 point. I shut it down to add some fans or tried changing the temp threshold

the only things i changed was the rear fans, adding thermal paste to the heatsink and case.

Do the fans stop when this happens?

nope. they continue spinning, that's why i had a huge shock when i checke my btcguild status page and it says last share was 6hrs ago.

when the miner stops hasing, it reboots and the elaspe timer resets but the hashrate, temps and fan speeds all show 0

Try a different firmware.  I have migrated all my avalons away from that version.  Same issue.

i have no idea whether i should do that or not since the avalon users thread reports users with bricked units or unstable issues.

I wouldn't worry about bricking it, only one user reported that happening.

20130818 was a great firmware that brought good speed increases, and the latest 20130821 seems solid too. Remember that if it's a batch 3 you need to add --avalon-temp 70 --avalon-cutoff 90

There's usually a reason newer versions of cgminer/avalon firmware come out.

which firmware is better?

20130821?

maybe you deep fried the circuit? have you monitored the voltage and temp before and after changing the clock settings?

temps were the same. i mean same range

no idea where to get the voltages from the openwrt page...