I practice
I like the silence, fluffy cats and closed system blocks computers with dust filters and low noise ))

their pitiful 27 Mh/s
http://omargpools.ca/dgb/index.php?page=statistics&action=pool
 I get this:

Rig 1
gpu0 - HD 7790 - 1.7 ... 1.8  Mh/s  (-i17)
gpu1   HD 7950 - 4.1 ... 4.2  Mh/s (-i18)

cpu fx-8350
------------------

Rig 2
GPU 0 - HD 7850 - 2.6  Mh/s (-i17)
GPU1   - HD 7950 - 3.8   Mh/s (-i17)

CPU fx-8350

Rig 3
GPU 0 - HD 7850 - 2.6  Mh/s  (-i17)
GPU 1 - HD 7850 - 2.6  Mh/s  (-i17)

CPU fx-8350

Rig 4
GPU 0 - HD 7850 - 2.6  Mh/s (-i17)
GPU 1 - HD 7970 - 4.65  Mh/s (-i17)

CPU fx-8350

Rig 5
GPU0 - HD 7790 - 1.7 ... 1.8  Mh/s (-i17)

CPU fx-8350

-----------------------------------------------
it gave today 57632.27304101 DGB

As you can see, there is no overloaded ))

and all can work 24/7 in summer when the ambient temperature of 35 degrees