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OK, I have 2 systems each that run 3x BFL singles.  I am trying to add a 4th, and I keep crashing CGminer. 

The .bat file that works is this:

C:\Users\user\Desktop\cgminer-2.4.1-win32\cgminer.exe -S COM3 -S COM4 -S COM5

when I add the new single, and add the port scan, it looks like this:

C:\Users\user\Desktop\cgminer-2.4.1-win32\cgminer.exe -S COM3 -S COM4 -S COM5 -S COM 6


When i try to use that second .bat file, CGminer crashes after scanning the ports. 

Any help that fixes this problem gets 2 BTC!!

I believe it's not crashing, but rather closing the batch file because "-S COM 6" is not a valid argument. You might want to try "-S COM6" or running cmd.exe then pasting the command in.

I think it's trying to scan for COM, which you don't have a single plugged into.

Typo......this is the actual .bat that is crashing:

C:\Users\user\Desktop\cgminer-2.4.1-win32\cgminer.exe -S COM3 -S COM4 -S COM5 -S COM6

nice catch though!  

CGminer is launching fine, scans the 4 ports, then the pop-up that says "CGminer has stopped working"  

If that works, CGminer just crashes with 4 -S arguments for whatever reason. If it fails, you've got a bad single, a bad cable, or the wrong COM port.

The "has stopped working" message indicates that something has been written to the Windows Event Viewer log, look there for any additional clues.

That DOES work.  I know others are using more than 3 singles.....someone must know. 

I think I have it.  Open up cmd prompt and make the window larger in options, try 85W 50H.  Close that out and try your batch file again, It should work now that everything fits on the screen. :D

Crashing due to screen size? wat

Give it a try. ;)

So ya....no fucking way that worked, right?  Wrong......that worked perfectly.

Seriously....WTF??!

Address for bounty, and it is yours baby.  I learn the wierdest shit on a daily basis around here......

Screen-size crash... what the hell... oh. I understand. This is Windows. When the application tries to write to a nonexistent location on the screen, it probably gets or passes a bad pointer then crashes, or the dll function which was called has poor error handling and crashes. Not so weird after all

LOL. Ahh, Windows...

People still mine on that shit?

Don't be making fun of us relics......

Erm, Unix is far, far older than Windows.

1. That was a typo.
2. That was already mentioned.
3. The issue is already fixed.

Freebie.  The only reason I knew is I had to find out the same thing like two days ago. ;D

That is wild......how on earth did you figure it out?

thanks man, much appreciated. 

It's Windows - the best troubleshooting strategy is trying random stuff until something works.

That's why trojans get installed so much on it also. lol

Actually you wanna hear crazy,  I found it using the search function in the cgminer thread. True story.  ;D ;D

nice.  I tried some word strings......could not find anything.

Windows is targeted by more hackers because it controls the highest market share, not because of any inherent security vulnerabilities. Careful of correlation/causality differentiation.

I didn't meant that it was insecure, I meant that people tend to try random stuff until something works, like you said.

"What's this popup window?"
"eh I'll just click OK and get done with it"

lol

Sorry, boring day, over-analyzing everything. My bad.