Personally, I use a nice 6" fan I picked up at my local ACE Hardware store, and this fan on Amazon is almost just like mine: http://a.co/d/hD9RkyR. It wasn't the least expensive fan, but you get what you pay for I guess. Occasionally, I also use a 120mm PC case fan that I wired to work with most HP server PSU's (or anything that will accept a 6-pin PCI-e cable connection). That fan moves air with some very serious force at full power, hence the 5A rating, and can be purchased here: http://a.co/d/g9pJzEV.


I have no idea what any of the temps are, but they are just barely warm to the touch. As others have already mentioned, all of my NewPac sticks run MUCH cooler than any of my 2PAC sticks ever did (even when the NewPac sticks are running at 500Mhz).

Ive got an Iltra kaze 120x38mm fan somewhere and a duct from an old server, ill have to get it hooked up somehow and see how goes. Cheers for the info though, given me some hope of getting them above 275freq and bumping up my lotto chances  

While I might not use your restart script this weekend, it would be good to have in my back pocket... So I for one would appreciate it being posted here. Thanks - G

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For me, a half dozen NewPacs arrived today from minefarmbuy. (Thanks for the good pricing and great service). So now there's a total of 9 NewPacs on my Eyeboot USB3.0 powered hub - all are running at 400MHz (a step down for the original 3). They are running in two sessions of cgminer so one has 5 NewPacs and the other one has 4... All have been running solid for the first 5 hours - Expected hashrate each is 91.20 and 8 are running within 1% of that. One of the new arrivals is running at 70.98. But it has the lowest number of Hardware Errors...! I use a third cgminer instance for 2Pacs on the same hub. My Windoze10 gets wonky if I use a fourth instance, so there's no way I can --usb :1

I'm waiting on a couple of USB2.0 Hubs to add in, so the only thing I'll be doing this weekend is trying to push these NewPacs a little harder... The original three had been running well for the last 3 days after I had bumped them from 450 to 475 and two additional fans arrived today as well... All 9 NewPacs are running cool at 400MHz... ambient temperature is about 68F. I can hold any of them without any fear of burnt digits... For my 2Pacs, I can touch them but wouldn't want to hold them. They are running at 225MHz.

Thanks to GekkoScience and sidehack, vh and -ck, and all of you, for getting me to my first night of pushing over the 1 Th/s mark! It feels pretty good... and that will have to be a good enough excuse for me to test a few sips of Scotch... so to all a good night...
If you listen closely, you can hear the next block solve!

Cant seem to get mine to run nicelt past 300mhz the hashrate drops to 5gh then back up to 50gh ish with an average of just 30gh at 350mhz. Using a plugable 7port hub. Maybe i havent tweaked the voltage enough. The pot flat spot is roughly at the 10 o’clock position if you hold it with the heatsink at the top and usb connector at the bottom.

Can I run cgminer from separate directories to get 2 sessions to restart every 6 hours or is there different code for doing this?

I am in the process of repurposing an L3+ frame and fans to cool the Sipolar and 7 sticks (will be 8 when I get one repaired/replaced). If the higher rates are recommended as safe then this would be a better cooling setup.

Would it be worth trying to reprogram the L3 controller?
Not sure if I could use it to control the fan speed as needed or just hard wire them into a limiter type switch.

Save this as mine.bat in the same folder as the cgminer.exe you are trying to run.   You will need to edit the part on the cgminer line with your pool and user info and also add any options you usually run, like asicboost.  Once you see that it is working, you can add a shortcut to the .bat to your startup folder.

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If you have two versions installed that you can already run from the command line separately then yes.  Just copy the line starting with 'gnome-terminal...' and paste it right after the first one, then edit the second line with your other second session command parameters.  The pkill in the script should kill all child processes with that name.

If anyone's interested, I'm finalizing a 3D printed frame for dual 70mm fans. its a direct download push over the hub and will fit the SiPolar A300 and the new hub SideHack is finishing. Ill post it to thingiverse.com shortly, just working out a connector to make the legs removable.
 


https://www.thingiverse.com/thing:3270261

I am still only seeing accepted and detected new block. The average of all the sticks is popping up at the bottom.

was there a flag/switch (not sure what they are called) that needs to be in my launch string?

https://i68.tinypic.com/mcvsy9.jpg

It would be nice to find out what I'm doing wrong with my cgminer setup.