4 Thin Mini-ITX Based PC System Design Guide
4.3.2 Platform Controller Hub (PCH) Cooling ........................................ 41
4.3.3 Voltage Regulator Cooling .......................................................... 41
4.4 Acoustics .............................................................................................. 42
5 Mechanical ....................................................................................................... 44
5.1 CPU Mechanicals .................................................................................... 44
5.2 Internal Motherboard Header Locations .................................................... 45
5.3 System Cables and Connectors ................................................................ 46
5.3.1 System Cable Kitting ................................................................. 46
5.4 CPU Thermal Solution and System Fan Mechanical Interface ....................... 46
5.5 Thin Mini-ITX I/O Shield ......................................................................... 50
5.6 Industrial Design, System Layout, and Usability Considerations ................... 51
5.6.1 AIO Specific System Mechanicals ................................................ 52
6 Low Profile Reference Heat Pipe Thermal Solution ................................................. 53
6.1 General Volumetrics / Requirements ........................................................ 53
6.2 Reference Design CPU Thermal Solution ................................................... 53
7 Reference System Layouts ................................................................................. 55
7.1 Thin Mini ITX Based System Design .......................................................... 55
7.1.1 General System Design Considerations ........................................ 55
7.2 Reference Core Components Layouts ........................................................ 56
7.3 Thermal Test Method .............................................................................. 65
7.3.1 Components Used for Testing ..................................................... 65
7.3.2 Stress Software ........................................................................ 66
7.3.3 Temperature Measurement Locations .......................................... 67
Figures
Figure 1-1. Thin Mini-ITX Applications ................................................................. 9
Figure 1-2. Mini-ITX (left) vs Thin Mini-ITX (right) ............................................... 11
Figure 2-1. 40-pin LVDS Header ........................................................................ 15
Figure 2-2. 40-pin eDP MB Header ..................................................................... 17
Figure 2-3. PC & Software Brightness Control: .................................................... 19
Figure 2-4. FPD Brightness Header .................................................................... 19
Figure 2-5. Front Panel Audio Header ................................................................. 21
Figure 2-6. Internal Stereo Speakers Header ....................................................... 22
Figure 2-7. DMIC MB Header ............................................................................. 23
Figure 2-8. 2x5 USB 2.0 Header (Keyed at Pin 9) ................................................ 24
Figure 2-9. 2x5 USB 2.0 Header (Keyed at Pins 9 and 10) .................................... 25
Figure 2-10. 1x5 USB 2.0 Header ...................................................................... 26
Figure 2-11. 2x10 USB 3.0 Header ..................................................................... 26
Figure 2-12. USB 3.0 Header Orientation ............................................................ 28
Figure 2-13. Front Panel Main Header ................................................................. 28
Figure 2-14. Internal Power Header ................................................................... 29
Figure 2-15. 4-Pin CPU Fan Header .................................................................... 31
Figure 2-16. CIR Receiver Header ...................................................................... 32
Figure 2-17. Monitor Switch Header ................................................................... 32
Figure 3-1. External Power Connector for Socketed CPU Based Systems ................. 35
Figure 4-1. Example of Voltage Regulator Induced Throttling ................................ 38
Figure 4-2. Example of a Typical CPU DTS Readout When Not Throttling ................. 38