RX680R User’s Manual
2
Content
Safety Information ...................................................................................................... 5
About this guide ......................................................................................................... 7
Typography ................................................................................................................. 8
Packing List ................................................................................................................ 9
Revision History ....................................................................................................... 10
RX680R Motherboard Features ............................................................................... 11
Specifications Summary .......................................................................................... 11
Block Diagram .......................................................................................................... 13
Chapter 1 - Product Introduction ............................................................................ 14
1.1 Before you Proceed ........................................................................................................ 15
1.2 Motherboard Overview .................................................................................................... 15
1.2.1 Placement Direction ............................................................................................................................... 15
1.2.2 Screw Holes ........................................................................................................................................... 16
1.2.3 Motherboard Layout ............................................................................................................................... 17
1.2.4 Layout Content List ................................................................................................................................ 18
1.3 Central Processing Unit (CPU) ....................................................................................... 20
1.3.1 Installing the CPU .................................................................................................................................. 21
1.3.2 Installing the CPU Heatsink and Fan ..................................................................................................... 23
1.3.3 Uninstalling the CPU Heatsink and Fan................................................................................................. 25
1.4 System Memory .............................................................................................................. 26
1.4.1 Overview ................................................................................................................................................ 26
1.4.2 Installing a DIMM ................................................................................................................................... 27
1.4.3 Removing a DDR5 DIMM ...................................................................................................................... 27
1.5 Expansion Card .............................................................................................................. 27
1.5.1 Installing an Expansion Card ................................................................................................................. 28
1.5.2 Configuring an Expansion Card ............................................................................................................. 28
1.5.3 PCI Express x16 slot .............................................................................................................................. 28
1.5.4 PCI Express x4 slot ................................................................................................................................ 29
1.5.5 M.2 connector ........................................................................................................................................ 29
1.6 Jumpers .......................................................................................................................... 30
1.6.1 Clear CMOS (CMOS1)........................................................................................................................... 30
1.6.2 AT/ATX Power Mode Select (AT1) ........................................................................................................ 31
1.6.3 COM POWER SETTING (J56,J45~J48,J25) ......................................................................................... 31
1.6.4 LVDS Panel Power Select (PANEL_SEL1) ........................................................................................... 32
1.6.5 LVDS Blacklight Voltage Selection (BKLVOL1) ..................................................................................... 32
1.7 Connectors...................................................................................................................... 33
1.7.1 Rear panel connectors ........................................................................................................................... 33
1.7.2 CPU and System fan connectors (CPU_FAN1, SYS_FAN1, SYS_FAN2) ........................................... 34