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K3851-R ATX

Connector/Socket Diagram

Technical Details

FEATURES

Board Size / Chipset

VGA* / DVI / DPP / LVDS / eDP

Stereo Audio / 5.1 Multichannel Audio / Front Panel Audio

Buzzer / int. Speaker Support (mono)

GbE LAN / 2.5GbE LAN / Dual 2.5GbE LAN

WoL / LAN Boot / Teaming / TSN

Intel® Standard Manageability / iAMT / vPro

SATA / SATA RAID / M.2 SSD (NVME) / NVME RAID

USB 2.0 / USB 3.2 Gen1 / USB 3.2 Gen2 / USB 3.2 Type-C

FAN controlled & monitored / CPU / AUX1 / AUX2 / AUX3

TEMP monitored CPU / Onboard Sensors / External Sensor

ATX / R680E

- / - / + / - / -

- / + / +

+ / +

+ / + / +

+ / + / + / +

+ / + / -

+ / + / + / +

+ / + / + / +

+ / + / + / +

+ / + / -

SPECIAL FEATURES

Silent Fan / System Guard / cTDP

Recovery BIOS / Flash Update / Multi Boot

HDD Password / EraseDisk / TPM V2.0

BIOS POST Watchdog / BIOS Boot Watchdog / OS HW Watchdog

Logo Boot Option

High Efficiency Core Voltage Regulator Design

Operating Mode 24-7 / 8-5 (hrs per day - days per week)

Motherboard operating temperature range (chassis inside)***

+ / + / +

+ / + / +

+ / + / +

+ / + / +

+

+

+ / -

0 °C – 60 °C

INTERNAL CONNECTORS

DIMM Sockets (DDR5-4800) / ECC-Support

PCI Express® x16: 16lanes-Gen5 / PCI Express® x16: 4lanes-Gen4

PCIe x8 @4 lanes: Gen4-"open" / Gen3-"closed"

PCI Express® x1: Gen3-"open"

PCI Slots (32 Bit, 33 MHz, Rev. 2.3) / Mini-PCIe

SATA-600 / M.2 Key-M (NVME SSD) / M.2 Key-B

M.2 2230 (Key-E, PCIe & USB2.0 for WLAN/Bluetooth)

S/PDIF (digital Audio) OUT / IN

Front Panel Audio (9-Pin, HD Audio)

USB 2.0 / USB 3.2 (Gen1) / USB 2.0 Stick / USB 3.2 (Gen2) Stick****

Fan CPU / AUX1 / AUX2 / AUX3

Intrusion (Case Open) / GPIO (8Bit) / SM-Bus (Case Temp.)

Serial Port Header (COM, RS-232) / Parallel Port Header / PS2 Header**

Front Panel (Power Switch, Reset Switch, LEDs, Intel 10 pin compatible)

Multirail PSU (24 pin + 8 pin) / Single 12 V PSU

4 / +

1 / 1

1 / 1

2

1 / -

4 / 2 / -

1

1 / -

1

1 / 1 / 1 / 1

1 / 1 / 1 / 1

1 / 1 / -

3 / - / 1

1

+ / -

EXTERNAL CONNECTORS

VGA Sub D* / DVI-I / DVI-D / DisplayPort™ V1.4a

Audio Mic. In / Line in / Line out (or driver configuration)

LAN (RJ-45)

PS/2 Mouse / Keyboard**

USB 2.0 / USB 3.2 (Gen1) / USB 3.2 (Gen2)

Serial (COM1, RS-232)

Parallel (EPP/ECP)

- / - / - / 4

1 / 1 / 1

3

- / -

- / 4 / 3

1

-

*) VGA possible via DP-VGA-converter (dongle)

**) Internal PS/2 header available

***) Forced cooling required, see technical documentation for details

****) Each internal USB connector (pin header) provides two USB ports (except for USB stick socket)

INTERNAL USE ONLY

INTERNAL USE ONLY

K3851-R (13.07.22)

ATX

Power

Supply

#1 PCIe x16 Gen5 (16 lanes)

#3 PCIe x16 Gen4 (4 lanes)

#2 PCIe x1 Gen3

.

(open slot)

R680E

PCH incl.

heatsink

IO

4 x DDR5-

4800

4 x SATA III

USB

2.0

TPM

Socket

.

CPU Fan

Intrusion

Fan 2

Battery

Buzzer

243.8 mm

SCSI

LED

12V for CPU

(8-pin)

COM2

8 Bit

GPIO

M.2-

2230/

2242/

2280

Key-M

SSD

(PCIe

Gen4)

„PCH“

USB

3.2

Gen1

USB 2.0

Stick

USB

3.2 Gen2

Stick

#4 PCIe x8 Gen3 (4 lanes)

.

.

#7 PCI 32 Bit

PCI

Bridge

Socket

LGA1700

max. 125W

TDP

#5 PCIe x8 Gen4 (4 lanes)

(open slot)

#6 PCIe x1 Gen3

(open slot)

VRM Cooler

6-Layer PCB

Rev. 01

Front Audio SP/DIF PS/2

COM3 COM4 Front Panel Fan3

Fan4