Turning your computer on and off for no reason causes thermal stress. Computers aren't like people (mostly) and don't need breaks, but heating them and cooling them can cause damage. Monitors though should be off when they're not needed since they wear out more from use than heating/cooling cycles.
Never knew that. I always thought it was good to shut them down for 8 hours or so if you had them running for long periods of time.
Good cooling and clean fans/heatsinks is the best medicine for 24/7 running.
That's why at some point I'm thinking about building a PC for scrypt mining so I can use one of the pools that convert for me and then plugging up ASIC to the USB ports. All 4 cards wing water cooled. If I get one of the boards made for mining with the 6 slots may do that. It will give me a chance to play with water cooling before I decide to do so on the PC that I have for gaming. Tax return is going to be used for a new card for it. Holding out till this rumored Titan 2 and 790 from nVidia come out. I know nVidia isn't good for mining, but I don't plan on using that card or even that PC for it. Next years tax return may go to building a mining rig.
I just got my USB fan in today and I'm expecting my other 4 Antminer U1s some time in the next few days. I plugged up the fan and it looks like I might have a slight issue. I thought I would be able to bend it and it stay in place however it wont so the spots that I thought I would put it at wont work. The USB hub I have is this one: http://www.microcenter.com/product/360454/7-Port_USB_20_Hub_with_Power_Adapter. I thought I could put the fan in on one of the 2 ports at the end. I'm thinking now what I will do is run 4 U1s in front of the fan and one on one of the ports at the end. That is if I don't get any hardware issues from running 5 and a fan on the hub. The one that the fan is cooling now has dropped a lot in temperature.
When I plug the others in will I have to restart bfgminer or change the line in the cmd file I made?