IEI Technology IMBA-R680 User manual

ATX Motherboard Supports LGA1700 12th/13th Gen. Intel® Core™
i9/i7/i5/i3, Pentium® and Celeron® Processor, DDR5,
Triple Independent Display, Dual 2.5GbE LAN, M.2,
USB 3.2, SATA 6Gb/s, and RoHS
IMBA-R680
Quick Installation Guide
Version 1.0
July 28, 2022
Package List
IMBA-R680 package includes the following items:
 1 x IMBA-R680 single board computer
 2 x SATA cable
 1 x I/O shielding
 1 x QIG
©2022 Copyright by IEI Integration Corp.
All rights reserved.

2
Specifications
 CPU:
LGA1700 12th/13th Generation Intel® Core™ i9/i7/i5/i3, Celeron®
and Pentium® processors (up to 125W TDP)
 Chipset:
Intel® R680E
 Memory:
Four 288-pin 4800 MHz dual-channel unbuffered DDR5 SDRAM
DIMM slots supporting up to 128 GB memory (ECC & non-ECC
supported)
 BIOS:
AMI UEFI BIOS
 Graphics Engine:
New Intel® Xe Graphics architecture with SRIOV, Genlock
 Display Output:
Triple independent display
1 x DP (up to 4096 x 2304 @ 60Hz)
1 x HDMI (up to 4096 x 2304 @ 30Hz)
1 x iDPM IEI eDP/ LVDS/ VGA module
 Ethernet:
2 x 2.5GbE RJ-45 port via Intel® I225V controller (colay I225-LM
support vPro)
 External I/O Interface:
4 x USB 3.2 Gen 2 (Type-A) (10Gb/s)
2 x USB 3.2 Gen 1 (Type-A) (5Gb/s)
2 x RS-232/422/485 (RS-485 support AFC)
 Internal I/O Interface:
4 x SATA 6Gb/s (RAID 0/1/5/10 supported)
4 x USB 2.0 (2x4 pin, p=2.0)
2 x USB 3.2 Gen 1 (5Gb/s) (2x10 pin, p=2.00, wafer)
4 x RS-232 (2x5 pin, p=2.54)

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 Audio:
1 x iAUDIO supports IEI AC-KIT-888S Audio Kit (2x5 pin)
 Front Panel:
1 x Front panel (2x7 pin, p=2.54; power LED, HDD LED, speaker,
power button, reset button)
 LAN LED:
2 x LAN LED (1x2 pin, p=2.0)
 Expansions:
2 x PCIe Gen5 x16 slot with x8 signal
3 x PCIe Gen4 x4 open-end slot
2 x PCIe Gen3 x1 slot
1 x M.2 M key (2242/2280, PCIe x4), NVMe supported
1 x M.2 M key (2242/2280, PCIe x2 for SSD), NVMe supported
 Digital I/O:
1 x 12-bit digital I/O (2x7 pin, p=2.0)
 SMBus:
1 x SMBus (1x4 pin, p=1.25)
 I
2C:
1 x I2C (1x4 pin, p=1.25)
 Fan Connector:
1 x CPU fan connector (1x4 pin)
2 x System fan connector (1x4 pin)
 Chassis Intrusion:
1 x Chassis intrusion connector (1x2 pin, p=2.0)
 TPM
Intel® PTT (TPM 2.0)
 Power Supply:
ATX/AT power supply
Support AT/ATX mode
ErP/EuP compliant

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 Power Consumption:
[email protected], [email protected], [email protected], [email protected]
(Intel® Core™ i7-12700E CPU with four 16 GB 4800 MHz DDR5
memory, EuP mode enabled)
 Watchdog Timer:
Software programmable support 1–255 sec. system reset
 Operation Temperature: 0°C – 60°C
 Storage Temperature: -30°C – 70°C
 Operation Humidity: 5% – 95%, non-condensing
 Dimensions: 244 mm x 305 mm
 Weight: GW:1200 g / NW:700 g
 Safety: CE/FCC compliant
All the drivers and utility for the IMBA-
R680 are available on IEI Resource
Download Center. Type IMBA-R680
and press Enter to find all the relevant
software, utilities, and documentation.
To install software from the
downloaded ISO file, mount the file as
a virtual drive to view its content.
IEI Resource Download Center
https://download.ieiworld.com

5
Ordering Information
 IMBA-R680-R10:
ATX motherboard supports LGA1700 12th/13th Generation Intel®
Core™ i9/i7/i5/i3, Pentium® and Celeron® processor, DDR5, triple
independent display, dual 2.5GbE LAN, M.2, USB 3.2, SATA 6Gb/s,
and RoHS
 AC-KIT-888S-R10:
Realtek ALC888S 7.1 Channel HD Audio board, RoHS
 CB-USB02A-RS:
Dual-port USB cable with bracket, 300mm, p=2.0
 19800-010500-200-RS:
USB 3.0/USB3.2 cable with bracket, 450mm, p=2.0
 32102-000100-200-RS:
SATA power cable, MOLEX 5264-4P to SATA15P
 32205-000702-100-RS:
RS-232 cable, 230mm, p=2.54
 iDPM-eDP-R10:
eDP to eDP converter board (for IEI iDPM connector)
 iDPM-LVDS-R10:
eDP to LVDS converter board (for IEI iDPM connector)

6
Jumpers Setting and Connectors
LABEL FUNCTION
J_ATX_AT1 AT/ATX power mode setting
J_CMOS1 Clear CMOS jumper
ME_FLASH1 Flash descriptor security override jumper
IAUDIO Audio connector for IEI AC-KIT-888S kit
ATX1 ATX power connector
CPU12V1 ATX CPU 12V power connector
BAT2 RTC battery connector
CHASSIS1 Chassis intrusion connector
DIMM1, DIMM2,
DIMM3, DIMM4 DDR5 DIMM slots
DIO1 Digital I/O connector
DEBUG_1 EC debug connector
CPU_FAN1, SYS_FAN1,
SYS_FAN2 Fan connectors
F_PANEL1 Front panel connector
J_I2C1 I2C connector
JLAN_LED1 LAN1 link LED connector
JLAN_LED2 LAN2 link LED connector
COM3, COM4,
COM5, COM6 RS-232 serial port connectors
SATA1, SATA2,
SATA3, SATA4 SATA 6Gb/s connectors
J_SMB1 SMBus connector
JSPI1 Flash SPI ROM connector
JEC1 Flash EC ROM connector
USB2_CN1, USB2_CN2 Internal USB 2.0 connectors
USB3_2 Internal USB 3.2 Gen 1 connector
M2_M1, M2_M2 M.2 M key slots
IDPM IEI iDPM slot
PCIE3, PCIE7 PCIe x1 slots
PCIE1, PCIE5, PCIE6 PCIe x4 slots
PCIE2, PCIE4 PCIe x16 slots
PWR_BTN1 Onboard power button

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COM1_2 External dual RS-232/422/485 connector
HDMI_DP1 External HDMI and DP combo connector
LAN1_USB1 External 2.5GbE RJ-45 and dual USB 3.2
Gen 1 combo connector
LAN2_USB2 External 2.5GbE RJ-45 and dual USB 3.2
Gen 2 combo connector
USB3_1 External dual USB 3.2 Gen 2 connector
J_ATX_AT1: AT/ATX Power Mode Setting
PIN NO. DESCRIPTION
Short A - B ATX Power Mode (default)
Short B - C AT Power Mode
J_CMOS1: Clear CMOS Button
Status DESCRIPTION
NC Keep CMOS Setup
(Normal Operation)
Press Clear CMOS Setup
ME_FLASH1: Flash Descriptor Security Override Jumper
PIN NO. DESCRIPTION
Short Disabled (default)
Open Enabled
IAUDIO: Audio Connector for IEI AC-KIT-888S kit
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 HDA_SYNC_R 2 HDA_BCLK_R
3 HDA_SDO_R 4 HDA_PCBEEPC
5 HDA_SDI_0_R 6 HDA_RST_R
7 +5V 8 GND
9 +12V 10 GND

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ATX1: ATX Power Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 +3.3V 13 +3.3V
2 +3.3V 14 -12V
3 GND 15 GND
4 +5V 16 PS_ON
5 GND 17 GND
6 +5V 18 GND
7 GND 19 GND
8 Power good 20 -5V
9 5VSB 21 +5V
10 +12V 22 +5V
11 +12V 23 +5V
12 +3.3V 24 GND
CPU12V1: ATX CPU 12V Power Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GND 5 +12V
2 GND 6 +12V
3 GND 7 +12V
4 GND 8 +12V
BAT2: RTC Battery Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 VBATT 2 GND
CHASSIS1: Chassis Intrusion Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 CASEOPEN_N 2 GND

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DIO1 : Digital Input/Output Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GND 2 VCC
3 Output 5 4 Output 4
5 Output 3 6 Output 2
7 Output 1 8 Output 0
9 Input 5 10 Input 4
11 Input 3 12 Input 2
13 Input 1 14 Input 0
DEBUG_1: EC Debug Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 NC 4 EDICLK
2 EDICS 5 EDIDI
3 EDIDO 6 GND
CPU_FAN1: CPU Fan Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GND 2 +12V
3 FANIO 4 PWM (+5V)
SYS_FAN1, SYS_FAN2: System Fan Connectors
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GND 2 +12V
3 FANIO 4 PWM (+5V)

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F_PANEL1: Front Panel Connector
PIN DESCRIPTION PIN DESCRIPTION
PWR
LED
1 PWR_LED+ 2 SPKR+
SPKR
3 NC 4 NC
5 PWR_LED- 6 NC
PWR
BTN
7 PWR_BTN+ 8 SPKR-
9 PWR_BTN- 10 NC
HDD
LED
11 HDD_LED+ 12 Reset+ RESET
13 HDD_LED- 14 Reset-
J_I2C1: I2C Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GND 3 I2C_CLK
2 I2C_DATA 4 +5V
JLAN_LED1: LAN1 Link LED Connector
PIN DESCRIPTION PIN DESCRIPTION
1 +3.3V 2 I225_LINK_ACT_N
JLAN_LED2: LAN2 Link LED Connector
PIN DESCRIPTION PIN DESCRIPTION
1 +3.3V 2 I225_LINK_ACT_N
COM3, COM4, COM5, COM6: RS-232 Serial Port Connectors
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 DCD 2 DSR
3 RXD 4 RST
5 TXD 6 CTS
7 DTR 8 RI
9 GND 10 GND

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SATA1, SATA2, SATA3, SATA4: SATA 6Gb/s Connectors
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GND 5 SATA_RX‐
2 SATA_TX+ 6 SATA RX+
3 SATA_TX‐ 7 GND
4 GND 8 N/C
J_SMB1: SMBus Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GND 3 SMB_CLK
2 SMB_DATA 4 +5V
JSPI1: Flash SPI ROM Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 +3.3V 4 SPI_CLK
2 SPI_CS# 5 SPI_SI
3 SPI_SO 6 GND
JEC1: Flash EC ROM Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 FSCE# 2 +3.3V
3 FMISO 4 NC
5 EC_DET_FLASH 6 FSCK
7 GND 8 FMOSI
USB2_CN1, USB2_CN2: Internal USB 2.0 Connectors
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 VCC 2 GND
3 USB_DATA- 4 USB_DATA+
5 USB_DATA+ 6 USB_DATA-
7 GND 8 VCC

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USB3_2: Internal USB 3.2 Gen 1 Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 +5V 11 USB2_4_P
2 USB3_RX3_N 12 USB2_4_N
3 USB3_RX3_P 13 GND
4 GND 14 USB3_TX4_P
5 USB3_TX3_N 15 USB3_TX4_N
6 USB3_TX3_P 16 GND
7 GND 17 USB3_RX4_P
8 USB2_3_N 18 USB3_RX4_N
9 USB2_3_P 19 +5V
10 N/C
M2_M1: M.2 M-key Slot
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GND 2 +3.3V
3 GND 4 +3.3V
5 PCIE_4_RX_DN 6 N/C
7 PCIE_4_RX_DP 8 N/C
9 GND 10 NGFF1_ACT_N
11 PCIE_TX_DN4 12 +3.3V
13 PCIE_TX_DP4 14 +3.3V
15 GND 16 +3.3V
17 PCIE_3_RX_DN 18 +3.3V
19 PCIE_3_RX_DP 20 N/C
21 GND 22 N/C
23 PCIE_TX_DN3 24 N/C
25 PCIE_TX_DP3 26 N/C
27 GND 28 N/C
29 PCIE_2_RX_DN 30 N/C
31 PCIE_2_RX_DP 32 N/C
33 GND 34 N/C
35 PCIE_TX_DN2 36 N/C
37 PCIE_TX_DP2 38 M_2_SSD_SLP
39 GND 40 N/C

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41 PCIE_1_RX_DN 42 N/C
43 PCIE_1_RX_DP 44 N/C
45 GND 46 N/C
47 PCIE_TX_DN1 48 N/C
49 PCIE_TX_DP1 50 PLT_RST_N
51 GND 52 SRCCLKREQB_17_N
53 PCIE_CLK_DN17 54 NC
55 PCIE_CLK_DP17 56 N/C
57 GND 58 N/C
59 N/C 60 N/C
61 N/C 62 N/C
63 N/C 64 N/C
65 N/C 66 N/C
67 N/C 68 NC
69 PEDET 70 +3.3V
71 GND 72 +3.3V
73 GND 74 +3.3V
75 GND
M2_M2: M.2 M-key Slot
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GND 2 +3.3V
3 GND 4 +3.3V
5 PCIE_20_RX_DN 6 N/C
7 PCIE_20_RX_DP 8 N/C
9 GND 10 NGFF2_ACT_N
11 PCIE_TX_DN20 12 +3.3V
13 PCIE_TX_DP20 14 +3.3V
15 GND 16 +3.3V
17 PCIE_19_RX_DN 18 +3.3V
19 PCIE_19_RX_DP 20 N/C
21 GND 22 N/C
23 PCIE_TX_DN19 24 N/C
25 PCIE_TX_DP19 26 N/C

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27 GND 28 N/C
29 PCIE_18_RX_DN 30 N/C
31 PCIE_18_RX_DP 32 N/C
33 GND 34 N/C
35 PCIE_TX_DN18 36 N/C
37 PCIE_TX_DP18 38 M_2_SATA_SLP
39 GND 40 N/C
41 PCIE_17_RX_DN 42 N/C
43 PCIE_17_RX_DP 44 N/C
45 GND 46 N/C
47 PCIE_TX_DN17 48 N/C
49 PCIE_TX_DP17 50 PERST_N
51 GND 52 SRCCLKREQB_15_N
53 PCIE_CLK_DN15 54 NC
55 PCIE_CLK_DP15 56 N/C
57 GND 58 N/C
59 N/C 60 N/C
61 N/C 62 N/C
63 N/C 64 N/C
65 N/C 66 N/C
67 N/C 68 NC
69 N/C 70 +3.3V
71 GND 72 +3.3V
73 GND 74 +3.3V
75 GND

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COM1, COM2: External RS-232/422/485 Connectors
RS-232 RS-422 RS-485
1 DCD TXD422- TXD485-
2 RXD TXD422+ TXD485+
3 TXD RXD422+ --
4 DTR RXD422- --
5 GND -- --
6 DSR -- --
7 RTS -- --
8 CTS -- --
9 RI -- --
HDMI_DP1
External DP Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 LANE0P 11 GND
2 GND 12 LANE3N
3 LANE0N 13
A
UX_CTRL_DET_C
4 LANE1P 14 GND
5 GND 15
A
UXP
6 LANE1N 16 GND
7 LANE2P 17
A
UXN
8 GND 18 HPD
9 LANE2N 19 GND
10 LANE3P 20 +5V
External HDMI Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
21 HDMI_DATA2 31 GND
22 GND 32 HDMI_CLK#
23 HDMI_DATA2# 33 N/C
24 HDMI_DATA1 34 N/C
25 GND 35 HDMI_SCL
26 HDMI_DATA1# 36 HDMI_SDA
27 HDMI_DATA0 37 GND

16
28 GND 38 +5V
29 HDMI_DATA0# 39 HDMI_HPD
30 HDMI_CLK
LAN1_USB1
External Dual USB 3.2 Gen 1 Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 VCC 10 VCC
2 USB_DATA- 11 USB_DATA-
3 USB_DATA+ 12 USB_ DATA+
4 GND 13 GND
5 USB3_RX- 14 USB3_RX-
6 USB3_RX+ 15 USB3_ RX+
7 GND 16 GND
8 USB3_TX- 17 USB3_TX-
9 USB3_TX+ 18 USB3_TX+
2.5GbE RJ-45 Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
20 LAN1_MDI0P 24 LAN1_MDI2P
21 LAN1_MDI0N 25 LAN1_MDI2N
22 LAN1_MDI1P 26 LAN1_MDI3P
23 LAN1_MDI1N 27 LAN1_MDI3N

17
LAN2_USB2
External Dual USB 3.2 Gen 2 Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 VCC 10 VCC
2 USB_DATA- 11 USB_DATA-
3 USB_DATA+ 12 USB_ DATA+
4 GND 13 GND
5 USB3_RX- 14 USB3_RX-
6 USB3_RX+ 15 USB3_ RX+
7 GND 16 GND
8 USB3_TX- 17 USB3_TX-
9 USB3_TX+ 18 USB3_TX+
2.5GbE RJ-45 Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
20 LAN1_MDI0P 24 LAN1_MDI2P
21 LAN1_MDI0N 25 LAN1_MDI2N
22 LAN1_MDI1P 26 LAN1_MDI3P
23 LAN1_MDI1N 27 LAN1_MDI3N
USB3_1: External Dual USB 3.2 Gen 2 Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 VCC 10 VCC
2 USB_DATA- 11 USB_DATA-
3 USB_DATA+ 12 USB_ DATA+
4 GND 13 GND
5 USB3_RX- 14 USB3_RX-
6 USB3_RX+ 15 USB3_ RX+
7 GND 16 GND
8 USB3_TX- 17 USB3_TX-
9 USB3_TX+ 18 USB3_TX+

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Board Layout: Jumper and Connector Locations
(Unit: mm)