[[en:discussions:device_overheating_message]]
 
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en:discussions:device_overheating_message [2013/06/11 07:51] – created 178.24.145.101en:discussions:device_overheating_message [2013/06/11 21:07] – [Device overheating message] 77.64.252.71
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 //, 2013/06/11 09:46 // //, 2013/06/11 09:46 //
  
-Hi, I'm running my FPGA 1.15b + experimental board 1.3.+Hi, I'm running my FPGA 1.15b + experimental board 1.3 on Linux. 
  
-As soon as I start the BTCMiner, I'm getting the following error:+I was able to upload the firmware to eeprom with the following command:
  
-2013-06-10T19:31:43: ztex_ufm1_15b1-04A39E20AD: New device: bitfile=ztex_ufm1_15b1   f_default=184.00MHz  f_max=224.00MHz  HpC=0.5H+vp@deathstar:~/Downloads/ztex/ztex/java/FWLoader$ sudo ./FWLoader -ue ../../../btcminer/ztex_ufm1_15b1.ihx  
 +Firmware to EEPROM upload time: 2581 ms
  
-2013-06-10T19:31:43: ztex_ufm1_15b1-04A39E20AD: MAC address: 0004a39e20ad+the ihx i've got from btcminer source, because I wasn't able to find it in the Download package offered in the download area. if its there, please advise me. 
  
-2013-06-10T19:31:43: ztex_ufm1_15b1-04A39E20AD: FPGA 1: configuration time: 235 ms+then I tried to run it as:
  
-2013-06-10T19:31:44: ztex_ufm1_15b1-04A39E20AD-1: New FPGA+    java -cp ~/ZtexBTCMiner-121126.jar BTCMiner -host "http://mint.bitminter.com:8332" -u foo -p bar -d 0
  
-2013-06-10T19:31:44: ztex_ufm1_15b1-04A39E20AD-1: Set frequency to 184.00MHz+    ztex_ufm1_15b1-04A39E20AD: New device: bitfile=ztex_ufm1_15b1   f_default=184.00MHz  f_max=224.00MHz  HpC=0.5H 
 +    ztex_ufm1_15b1-04A39E20AD: MAC address: 0004a39e20ad
  
-2013-06-10T19:31:44: ztex_ufm1_15b1-04A39E20AD-1: Using LongPolling URL http://mint.bitminter.com:8332/lp+    Warning: Possible Bitstream CRC error: INIT_B_HIST=111 
 +     
 +    ztex_ufm1_15b1-04A39E20AD: FPGA 1: configuration time: 231 ms 
 +    ztex_ufm1_15b1-04A39E20AD-1: New FPGA 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency to 184.00MHz
  
-2013-06-10T19:31:46: ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 184.00MHz to 176.00MHz 
  
-2013-06-10T19:31:48: ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 176.00MHz to 184.00MHz+then after that It just quits with the message:
  
-2013-06-10T19:31:51: ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 184.00MHz to 176.00MHz+    ztex_ufm1_15b1-04A39E20AD-1: Using LongPolling URL http://mint.bitminter.com:8332/lp 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 184.00MHz to 176.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 176.00MHz to 184.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 184.00MHz to 176.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 176.00MHz to 168.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Error: Hash rate drop of 8.7% detect. This may be caused by overheating. FPGA is shut down to prevent damage.: Disabling device
  
-2013-06-10T19:31:54: ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 176.00MHz to 168.00MHz+if i set the BTCMiner parameter -oh to 1.0 I don't get the CRC error but the frequency goes down like:
  
-2013-06-10T19:31:54: ztex_ufm1_15b1-04A39E20AD-1: Error: Hash rate drop of 8.7% detect. This may be caused by overheating. FPGA is shut down to +    ztex_ufm1_15b1-04A39E20AD-1: Using LongPolling URL http://mint.bitminter.com:8332/lp 
- prevent damage.: Disabling device+    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 184.00MHz to 176.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 176.00MHz to 184.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 184.00MHz to 176.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 176.00MHz to 168.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 168.00MHz to 160.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: f=160.00MHz,  submitted 0 new nonces,  luckFactor=0.00 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 160.00MHz to 152.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 152.00MHz to 144.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 144.00MHz to 136.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 136.00MHz to 128.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: f=128.00MHz,  submitted 0 new nonces,  luckFactor=0.00 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 128.00MHz to 120.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 120.00MHz to 112.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 112.00MHz to 104.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 104.00MHz to 96.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: f=96.00MHz,  submitted 0 new nonces,  luckFactor=0.00 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 96.00MHz to 88.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 88.00MHz to 80.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 80.00MHz to 72.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 72.00MHz to 64.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 64.00MHz to 56.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: f=56.00MHz,  submitted 0 new nonces,  luckFactor=0.00 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 56.00MHz to 48.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 48.00MHz to 40.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 40.00MHz to 32.00MHz 
 +    ztex_ufm1_15b1-04A39E20AD-1: Set frequency from 32.00MHz to 24.00MHz
  
  
-What are the possible causes? As power supply I'm using this one from Conrad http://www.conrad.de/ce/de/product/512898/VOLTCRAFT-FTPS-12-60W-Tischnetzteil-Getaktet-Schaltnetzteil-12-VDC-5000-mA-60-Watt?queryFromSuggest=true 
  
-~~DISCUSSION~~+What are the possible causes? As power supply I'm using this one from Conrad http://www.conrad.de/ce/de/product/512898/VOLTCRAFT-FTPS-12-60W-Tischnetzteil-Getaktet-Schaltnetzteil-12-VDC-5000-mA-60-Watt?queryFromSuggest=true 
  
 +~~DISCUSSION~~
  
 
 
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