AVALON 6 CURRENTLY

[lightfoot]

Maybe....

Did some research here. For purposes of keeping things baseline and cool, I'm running all tests at speed 100. That should give a nice 400-500mh per blade with little temp difference. My new unit here works fine; two blades run great at up to 3.5th at speed 350. Room to grow there, but work well.

Test 1: Run with one blade. Works, flashes red, blade 1 is down, error is 18440, Loop 1 failed PG1 failed, ADC1_err. Temps are 32,47,273. Ok, fair enough. One important thing, the plug on the blade side was exceptionally tight. Pull hard and you *will* rip off the socket. I think they glued them, keep this in mind.

Test 2: Run with second blade on controller 2 (stux's controller from second Avalon). Goal is to establish a working MCU if possible. Plugged it into my blade, his cable, his controller, my auc, my Pi. Works fine, with same errors and 400-500gh hashing rate. Ergo his second MCU is good. No need to test third MCU, leave in box.

Test 3: Put his MCU on blade 1 of his Avalon. Fails with both loops down. Ergo that blade is bad, problem is in blade.

It is also to note that the ripped off plug matches the fact that the seller was retarded and probably thought he could pull the good blade and put it in another box. So he ripped off the plug, replacing the plug (bitch on wheels) could get things to work on that blade. Will think about that.

Meantime will take apart blade 1 from unit 1 and see if there are any solder bridges that can be fixed. Leaving unit 2 alone unit stux says he isn't getting his money back evah....

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[1714870051]

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[stugots2]

no money back on either sadly... no justice so your my only hope lol

[Steamtyme]

no money back on either sadly... no justice so your my only hope lol

Really through eBay and PayPal protection, you aren't getting refunded for DOA unit. That's crazy. Sorry to hear about that crapshoot of an experience.

[lightfoot]

Ok. In which case I'll take off the left side and see what's going on.

C

[stugots2]

oregonmines.com (people that sold me the fist one I sent you) simply will NOT respond so it's time for the scam report

[lightfoot]

More bad news on the second one. I took the board apart from side 0 (the one that didn't have the plug ripped out); it has a um... well let's say one chip is burned and several others show signs of the chips delaminating from the carriers....

That would definitely shut down the loop.

Next up will be to try and remove the ribbon cable socket from this board (it's never going anywhere again) and hard-wire it into the one that had the socket ripped off....

C

[stugots2]

ohhh wowwww.

I surely sent you 2 beauties huh??? LOL

[lightfoot]

ohhh wowwww.

I surely sent you 2 beauties huh??? LOL

Duds. Let's look at some pictures....

This is bad....


This is worse....


Not the only chip either, others were on the way out....


C

[stugots2]

lmfaoooo Sure glad I set my pride aside enough and realized I should not tackle this one myself LOL

[stugots2]

question is: does it have you pulling your hair out just yet? LOL

[lightfoot]

question is: does it have you pulling your hair out just yet? LOL

No not at all, this is fascinating. I'm just putting it in between other paying work, it's good research.

[Leszek]

Hi lightfoot,

I have similar problem I have 2 AVALON6 one is running steady at 3495GHs, another (purchased from another saler) fluctuate  between 19xx and 38xx with avg about 26xx. Any idea or sugestion?

Thank you,

[lightfoot]

Hi lightfoot,

I have similar problem I have 2 AVALON6 one is running steady at 3495GHs, another (purchased from another saler) fluctuate  between 19xx and 38xx with avg about 26xx. Any idea or sugestion?

Thank you,

First check the temps. In the advanced tabs under CGMiner_Status, the first temp is inlet and the second and third are temps on each side of the unit. Are temps on sides 2 and 3 about the same?

Check for power supply issues, maybe one side is running with an undersized supply. What is your 12v input voltage?

Try throttling down the max frequency to 100. What do you see performance-wise, is it stable?

Set the max frequency speed to 400. You should get around 3.2th or so. See if that is stable.

[Leszek]

https://plus.google.com/u/0/photos/116111157305357625600/album/6497260299740327761/6497260300394056018?authkey=CP-r_7PD_vP3swE https://plus.google.com/u/0/photos/116111157305357625600/album/6497260299740327761/6497260300394056018?authkey=CP-r_7PD_vP3swE

Thank you,

I lower frequency to 400 and I will check in one hour how is running.

I hope my attached pictures work

[stugots2]

I did buy a new fan for one of em, do you need that? I'd assume thats not an issue right?

[lightfoot]

I did buy a new fan for one of em, do you need that? I'd assume thats not an issue right?

No it's not a fan issue. The chips have just been baked.

C

[stugots2]

find any more bad news? LOL

[lightfoot]

Nothing works and I had to put it aside for a bit to fix some titan boards. And enjoy Christmas. And eggnog. And stuff like that.....

[lightfoot]

However that doesn't mean I give up: I just bought a reflow oven before the end of the year, will use that to try and re-seat all of the hashing chips before throwing in the beer when it arrives.

Just an excuse to buy bigger tools.

[stugots2]

lmfaooooo

bigger the better