Quote from: regtable69 on March 29, 2014, 05:24:46 AM

Quote from: NaranKPatel on March 29, 2014, 05:19:21 AM

Quote from: AMT_miners on March 29, 2014, 05:15:23 AM

Quote from: NaranKPatel on March 29, 2014, 05:10:18 AM

Quote from: AMT_miners on March 29, 2014, 04:58:45 AM

Quote from: NaranKPatel on March 29, 2014, 04:52:30 AM

Quote from: AMT_miners on March 29, 2014, 04:35:46 AM

A client which sympathizes with our situation on this thread made some high def photos of his 1.2Th, we thank for his help.

Guys,
Just wondering does the whole unit shutdown on overheat, before things burn out, just thinking of single fan on top if it fails what happens? I hate for it to become a really expensive brick?

The chip itself has an overheat threshold which is around 130's C. If the chip shuts down, the chain breaks cause the whole the unit to basically shut down from a hashing perspective. If you're using putty, you'll see an error message similar to CMD_READ_REG ERROR. If you see this, unplug it, wait 30 minutes restart it via putty and do the following:

root
amt
killall cgminer
cgminer -DT

And check to see if the cores in each chip are ok.

Also there are two 4-5 fans in this case. There are two 140's under the cage blow air up through the fins. The 200mm exhaust on top and the 120mm x 1 or 2 in the front of the case blowing air in.

Perfect, I can use the top 200mm for exhausting and connecting ducting and funneling, i.e. cold intake surrounding, thanks for following some of my earlier advice...

I've worked on unix/linux for 20 years, I think I can manage to restart cgminer, thanks for steps though anyway...sometimes cgminer bombs out, sometimes it just hangs...

if you do have s/w fixes or workarounds are you going to place those in client/customer area for d/l and updating the s/w on the pi?

We bought you (and everyone else who wants one) rackmount cases (RPC-450B 4U Rackmount Case) Naran, do you want the desktop cases instead?

I've love to see the rack case fully populated actually, I've not seen everything in one yet, thus my comments on tower, I'd thought you'd never ask actually...I just hope the cooling is equal to or exceeds the tower :-)

i as soon as my miners recieved that is will be looking at possibly trying to oil cool the unit either dump the lot in a fishtank of oil or building a thermal transfer unit and rad for the 200m fan with a push pul configuration as i see temps are really an issue if sucessful i will share with the community the results. plus maybe sell u guys some or give details how to make

I did submerged oil cooling with some of my miners and it works great if you have good oil circulation. one thing I did notice was, once I took the boards out and inspected them, I found that the arctic compound was made less efficient by the oil. another oil cooling user mentioned that some of the compounds don't work well when mixed with oil. it made a few of the cores less able to receive the cooling effect of the oil therefore some cores still stayed hotter than normal. it will depend on the compound used by AMT.