Topic: [Guide] Dogie's Comprehensive ASICMiner Blade Setup - page 56. (Read 580761 times)

I have the blades mounted vertically in a PVC pipe rack such that sufficient amount of airflow is going over the front and back of each board.  Additionally the boards ran fine for about two days straight with the same exact setup.  Actually the ambient air temperature (and hence the air being blown directly onto the blades via box fan) got a few degrees cooler the day of the problem since I shut down some other equipment.  The blades are no longer resetting when connected to the stratum proxy on my other computer, but efficiency remains at ~50-60%.
I'll post a pic as soon as I can but my internet here is currently giving me issues.

I understand this is a user-based help topic on the Internet but there's no need to be rude.

I doubt you can read. You've been told above that AC is not a solution. You need good airflow through the heatsink's area and back side where chips are located.

I'm running my blades on a brand new 1000w Seasonic platinum PSU and tested the voltage and it seems to be fine; also I put the blades directly in front of a running air conditioner and the heatsinks are warm, not even hot right now so I don't think that's the issue. Also I feel like if heat was an issue then all four wouldn't fail simultaneously. I'll try a different PSU later today and report back. Thanks everyone.

Interesting, hadn't thought of that.  I am powering two blades with a corsair CX750.  They both hash just fine when I do the workaround, but I wonder if they will hash faster if I get a separate PSU for each one.  I am getting a reliable 24,500 to 25,000 Mh/s long term average rate on any pool I use.  The blades themselves in the config screen say they are hashing at 13,050 or so, so I don't know if it's worth it to tinker or just let them run.  Every second counts with these difficulty jumps.

i had a similar issue whenever i switched to "High" mode. At the end it turned out to be insufficient power flow so i got it resolved after changing to 850w Seasonic. Probably more than sufficient for 2 blades but i decided to go for more ampers in case i wanted to get another blade..
Also get a PSU from reputable vendors like Corsair, Seasonic. The first PSU i got was thermaltake 530w and i believe it was of low quality and not pumping enough juice as advertised...

you can confirm power issue with connecting just one blade and hitting "High", if it runs stable without xxx then you may want to upgrade your PSU.

Yes - it is worth checking all the voltage rails to make sure that the problem one inst running too low or too high - most aim for 1.2V

Same thing happens with mine.  I find that when I do an update/restart in high clock mode, I get the x on one of the chips.  However, if I switch into low clock mode and then do the update, and then switch to high, all the chips display 0.  Try that?  Otherwise, Friedcat has said this is a voltage issue that is not terribly important if it still hashes at the normal rate and only affects one chip.

hard reset as per supplied instructions.

Do you mean a restart in the interface or the one with the directions that came with it. 

try a reset

Is there a way to correct it?

it means that one chip is not processing

What does it mean if one of my blades shows 1 x in the chip section of the interface.

I would say almost certainly they are resetting because they are overheating. You need proper airflow both sides of each blade even if the ambient air temp is cool. Sort out your cooling and that will stop the problems I am sure.

Connect 1 blade to a different PSU and make sure it is not the PSU. 1000W does not mean that it is a good performer.

I got 4 blades in a couple days ago and haven't had any issues until a few hours ago;
I had all 4 connected to Bitparking via a local stratum proxy and each was running at ~12-13 GH/s with no issues whatsoever, until a few hours ago they all went to almost 0 MH/s and kept restarting.  I have some BFL singles also running on bitparking and they were fine, so it's not a pool issue.

I tried the usual; restart stratum proxy, try a different pool (bitminter) via stratum proxy, and I even installed the stratum proxy on another one of my computers and ran it with the same settings on there.  Surprisingly connecting to the proxy on my other computer got the blades going up to about 6000 MH/s each and ~60% efficiency.  Both these machines are on the same network switch.

List of things I tried:
-Restarting (power cycle) blades multiple times
-Hardware reset by shorting the two pins on ethernet controller
-Connect to different pool server (limited success; ran at about 2-3 GH/s each)
-Connect to different stratum proxy server (limited success; ran at about 5-6 GH/s each)
-Tried connecting blades and stratum proxy to different network switch (no difference)
-Tried a different network cable for one of the blades (no difference)
-Tried connecting directly to pool server from blade (runs at the same 5-6 GH/s)
-Restarted network switch connected to blades, other network switch connected to router, router itself (no difference)
-Checked to see if anything seemed to have an IP address conflict.  Couldn't see any problems.
-Changed IP address of one blade (no difference)
-Lowered the temperature on the A/C close to the blades (no difference; the blade heatsinks aren't hot at all running at these slower speeds)

Power isn't an issue; I have 4 blades on a 1000w power supply and four + and four - 18 or lower awg wires going directly from psu into each blade connector.

I didn't make any changes to my BTC mining setup before these problems happened, however I did shut down and physically remove two litecoin rigs which are physically close to my BTC setup (and on the same network switch) about 20 minutes before I noticed the problem.  I can't see why this would affect the blades whatsoever though.

I did notice that the blades were running kind of hot before this whole issue (heatsink was just about too hot to touch), but I have them running in front of a box fan and air conditioner while I wait for my order of 120mm fans to come in so I figured it's okay in the meantime.

I also noticed that two of my blades show "BE Blade Rev 0.2" at the bottom of the configuration page, and the other two don't show anything.  I know OP mentioned something about a hardware issue in the first batch; could this be it?  The fact that four blades failed at the same time leads me to believe it's not a hardware issue though.

Anyone have any suggestions? :/

Anyone looking to sell up in europe? Have buyers for quite a few units potentially, and a few more in the US. Pm me best price.

Now you can. 

http://www.teamviewer.com/en/download/windows.aspx

My command line is;

"mining_proxy -o mint.bitminter.com -p 3333"

 I'm sure you can extrapolate if you mine elsewhere

he is a very lazy dude, i tried to help him too, but he wants everything without any effort on his side ...