Topic: The Chili – 30+GH/s BFL based Bitcoin Miner Assembly - page 17. (Read 137904 times)

They shouldn't be idling at 100W after a reset, more like 10-20W the majority of which is often the fan. After a reset the board turns on the 1V power supply to the chips, but it runs at 0.85V and does not enable the clocks until the self test starts. The chips only pull a few watts at this point.

The only time I could see it idling at 100W is if it was at a high voltage after having run for awhile (like 1.15V) and for whatever reason work isn't being sent to the chips, but the clocks are still on.

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No, there's no command for a reset through the USB interface.
I'm not sure what you mean by 100W.
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well that's a minor bummer but not an end of the world..

100watts statement comes from some other comment made on the thread where idle these cards pull ~100 watts..  So if they are pulling 100 watts idle, that's extra heat that has to be removed from the card before it cools down enough to self test... (which I understand is 34c correct?)

Josh

No, there's no command for a reset through the USB interface.
I'm not sure what you mean by 100W.

I've found that sometimes they will get "stuck" at 36c and never quite get below that to do the self test if that 100 watts and that if I power them off, wait 20 and turn them on it works every time.

Now if no power is going to the card but the fan is running then I get MAD MAD cool quick.. (like 2 minutes).

but more to the point, is there a way from terminal/script/commandline that I can issue a "reset" or "reboot" command?

Thanks

My corsair AX1200s will take 8 PCI-E 8 pin connectors.  Single 12V rail. 

You don't have to leave them off for them to cool down; if they're powered on while hot they'll just wait until they cool down. It goes a lot quicker if the fan is on.

So I have noticed,   when my cards go "south" I have no way to remotely reset them... I have to turn them off, wait for the chips to cool enough to self test ( usually 20 minutes) then turn them back on.  And often times, I have to do this with my Pi's off, so that they don't issue work to the "off" miner while its self testing.

Has anyone come up with a way to do this remotely?   I have the opportunity to move my mining to my work, but before I do that, I need to understand if there are any terminal or other ways to force the miners to cool down, and truly "reboot" themselves remotely.

Thanks all!

In bfgminer, hit m to see what the voltage is. If it's below 1v, you have cooling issues.

This ^

I've only ever seen a temp reading above 70C when I had lousy heatsink contact and the Chili was trying to hash faster than it should have. If you're not using a backplate I'd recommend one as it really minimizes the board flex and ensures you've got good contact on all 8 chips.

check the cooler mounting for good contact with the chips.

Then use the "Chili Fash utility" to check the device. It sounds like only half of your chips are running.

MrTeal posted the utility on "dropbox" earlier in this thread.

Does anyone know why my Chili would be running at half speed? I can only get 16GH/s out of it: https://i.imgur.com/olezO7v.jpg

Thanks

Yeah - we all get the same shiny bitcoins in the end no matter how pretty or ugly (like mine!) the mining rigs are.

as long as they hash dude

Enermax Revo 1350 W has 6x 12V @ 35 A. 4 of them are connectable by PCI-E. The 5th on a different rail is from the EPS12V line so I used a "good" well enough copper diameter extension which I cutted and assembled an PCI-E as an adapter. I've never found Adapter for EPS12V -> PCI-E.
The 6th rail is on the 24pin ATX plug. I have an extension only with low copper diameter. So I will buy an good well copper one and will try assamble an PCI-E again.

Also I did this for an 1500W Enermax Platinum (4 PCI-E Rails on knc Jupiter, 5th EPS12V via adapter to one chilly. Missing one adapter for 24pin ATX)

The Enermax 1000W Platinum looks like the best for this because you don't need a special adapter. You can add 5 PCI-E cables because it has only one 12V rail for 996 W. The ones with higher rates e.g. 1500 W have 6 rails with only 35 A each.

Also I use one 550W Enermax Revolution87+ on PCI-E, one on EPS12V with 3 low performers. It could be hard on limit, but is stable working for the moment. Each single rail can support 25A, but generally not more than 45A.

Also I use one Thermaltake Smart SE 730 (3 rails 18 A on 2 PCI-E + 1EPS12V).

Edit:

In my opinion the best is to use an mono rail power supply because you lost to much A on different rails or the rails did not have enough A to support 2 Modules on one rail :-(

I have an very old Enermax Noisetaker for 600W. It supports 2x18 A, one on PCI-E and one on EPS12V.
I use this for tests of my boards.

I guess your PSUs have no output electronic fuse which emergency shut down the psu. I killed also one old style psu :-/ which was allready in my electronic trash bin. Now it's back in the bin but without the internal cooler which is still usuable. I recommend to us an psu which has no problems with overloading an save themselve. I've allready two defects on enermax psus but never there destroyed my connected hardware.. So I feel to trust them. But I think also there are better ones on the market ;-)

I despise the 290 reference.  It's like owning a jet.

The triple fan AC actually performs just as well as a Mono Plus.  Save your money or get the NEW double and triple fan models.

I can run 6 on a corsair AX1200.  A 30 Month old AX1200!  I love these Power Supplies.

intel celeron g1610 4gb ddr3 xubuntu 12.04.3 bfgminer 3.8.0

they hosted by an rpi? if so... mine do that every once in a while, usually within 3 hours of fresh power up... if its gonna even happen. I find just moving USB cables around, fixes the problem more often then not ...
theres reports rpi cant handle many USB devices well...

all day today and most of the night last night i have been dealing with 4-6 out of 12 chili miners going sick about every 30-60 minutes. they come back as soon as i restart bfgminer but it is getting tiresome to restart it all the time. i had them all running non-stop for at least a week before this using the same setup. any ideas?

You want to make sure that you arent using 2 PCIe connectors on a single cable, that is easily overload for just a single cable. I tried that for a few mins to see how hot those cables get w/ a 400w load and it was HOT! =P