Would monitors attached to my USB hub make my CPU run hotter?
Would having 2 monitors attached to my USB hub (along with 1 monitor attached to the MiniDisplay port) contribute to the CPU getting hotter?
My MacBook:
- Core [email protected]
- 16-GB of RAM
- 1 HooToo 7 port USB hub
- 2 Diamond USB Multi-Display Adapter
- the USB Display Adapters attach to HP 2511x (25") and Samsung S24D300 (24")
- the MiniDisplay port monitor is HNC iF281D (28")
- MacOS 10.11 (El Capitan)
- I installed iStat to monitor things.
I just read in some forum that the CPU might overheat with more than 1 external monitor???
I have been using this set-up for a few days. It is working fine.
Thank you man, for publishing the answer.
Just as a follow up to the answer, it won´t make it run hotter, but it will consume some processing from your CPU (while compressing video) and mostly the GPU (for rendering the additional screens), this Wikipedia article tells exactly your answer and adds some context to it.
https://en.wikipedia.org/wiki/DisplayLink
The DisplayLink network graphics technology is composed of Virtual Graphics Card (VGC) software that is installed on a PC and a Hardware Rendering Engine (HRE) embedded or connected to a display device. The DisplayLink VGC software is based on a proprietary adaptive graphics technology. The VGC software runs on a Windows, Mac OS X, Linux host PC and takes information from the graphics adapter and compresses the changes to the display from the last update and sends it over any standard network including USB, Wireless USB, Ethernet, and Wi-Fi. After receiving the data, the HRE then transforms it back into pixels to be displayed on the monitor.
I found the answer:
USB graphics devices, like the USB-HDMI-DVI, are “virtual” devices where much of the heavy lifting is done by the CPU, by hooking into the graphics stack.
Even so, I'll keep this set-up and monitor things with iStat. All I display is MSFT Word documents and stupid web pages. I think I'll be ok?
Sorry I did not do more research!