Fujitsu D3641-S mATX Mainboard

silent fan erasedisk watch dog

D3641-S based on Intel® C246

Powered by the Intel® C246 Express Chipset supporting DDR4-2666 SDRAM Memory and Intel® XEON® / Intel® 8th generation CoreTM i7 / i5 / i3 Processors. Designed & approved for enhanced operating temperature range from 0°C to 60°C Designed and approved for 24/7 continuous operation

Chipset: Intel® C246 Express Chipset
Processors: Intel® XEON® E-21xx processor series
Intel® Core™ i7 / i5 / i3 (8th gen.) processor series
Intel® Pentium® / Intel® Celeron® processor series
Socket LGA1151 – up to 95W TDP
Memory: DDR4-2666, Dual Channel
4 DIMM sockets, up to 64GB memory
ECC support
Product Features:
Supporting Intel AMT 12.0 / vPro
PCI Express x16 (Gen.3)
2x Intel® GbE LAN (incl. Teaming)
Intel® UHD Graphics (DX12)
1x DVI-D, 2x DP V1.2
Intel® High Definition 5.1 Audio; Infineon TPM V2.0
8 Bit GPIO; 4 x COM ports
6x USB 2.0, 4x USB 3.1 Gen1, 2x USB 3.1 Gen2, 1 x USB 3.1 Gen2 stick socket
6x SATA 6G/s incl. RAID support, parallel port (internal pin header)
M.2 2280 (PCIe-based SSD modules)
M.2 2230 (WLAN/Bluetooth modules)
BIOS-POST/-Boot & OS – HW Watchdog onboard

Board Size µATX: 9.6” x 9.6” (243.8 x 243.8 mm)

Chipset Intel® C246 Express Chipset

Memory 4 DIMM Sockets DDR4-2666 (1.2V), max. 64GB, Dual Channel
DDR4 -2666 (CL19) / -2400 (CL17) / -2133 (CL15) SDRAM, unbuffered, ECC1 / non-ECC
Effective memory speed depends on installed processor

Processor Intel® XEON® E-21xx processor series
Intel® Core™ i7 / i5 / i3 (8th generation) processor series
Intel® Pentium® / Intel® Celeron® processor series
Socket LGA1151, max. 95W TDP
(For details on supported processors please refer to OEM FTP Server)

Power Specification ATX- 24 Pin or ATX- 20 Pin + 4 Pin (12V) Power Connector required
Support for Soft-Off Power Supplies
12V and 3.3V Supply Voltage on PCIe Slots
3.3V Auxiliary Supply Voltage on PCIe Slots (Wake-Up Function)
On board high-efficiency CPU Voltage Regulator, 5V / 2.5A Auxiliary Power
required for USB Wake-Up from Save-to-RAM, Save-to-Disk

Power Supply Requirements for mainboard only - worst case incl. processor & memory;
w/o USB devices; w/o PCIe cards; w/o SATA drives; w/o M.2 devices
1) Processor 95W TDP: Max. Cont. Current = 10A; max. Surge Current = 16A (< 100sec) / 18A (< 10ms)
Processor 65W TDP: Max. Cont. Current = 7A; max. Surge Current = 14A (< 100sec) / 18A (< 10ms)
Processor 35W TDP: Max. Cont. Current = 4A; max. Surge Current = 10A (< 100sec) / 14A (< 10ms)

Source	Voltage	Min. PS Load	Max.Voltage Tolerance	Mainboard Capacitive Load	Max. Mainboard Current
Main Power Supply	+ 12V	0.05A	± 5 %	5.000µF	10A/18A 1)
- 12V	0A	± 10 %	470µF	0.3A
+ 5V	0.2A	± 5 %	3.000µF	6.0A
+ 3.3V	0A	± 5 %	3.000µF	0.5A
Aux. Power	+ 5Vaux	0A	+5 % / -3%	3.000µF	2.5A

BIOS AMI Aptio 5.x (UEFI) BIOS
modified and adapted by Fujitsu Technology Solutions; Recovery BIOS, SM-BIOS (DMI), BIOS and
CPU Microcode Update, Quick Boot, Logo Boot, Quiet Boot, Plug & Play, Automatic DRAM and
PCIe Configuration, BIOS Support for S.M.A.R.T., Advanced Power Management, ACPI S3/S4,
Wake on time from S5.
HW Watchdog support & BIOS integrated HW Diagnostic Tool.
No legacy OS support, no MBR installation (UEFI only due to Intel restrictions)

Security Features Recovery BIOS, System and BIOS Password, Boot Sequence Control, Serial-/ Parallel-/ USB- Port
Access, Boot Sector Virus Warning, Write Protection for Flash BIOS, Erase Disk (BIOS Feature);
TPM V2.0 (Infineon; TCG compliant).

Special Features Silent Fan Independent temperature related processor fan
and system fan supervision and control
System Guard View Silent Fan features
Recovery BIOS Restores a corrupted BIOS
Desk Update Simple driver update with Driver & Utilities DVD
Multi Boot Comfortable boot from any boot device
HDD Password Access protection for disk drives / M.2 SSD modules
Always On Reliable power-on whenever voltage is connected
Never Off Option to prevent the system from being shut down
CSA / UL compliance cTÜVus acc. IEC62368-1 (planned)
FCC compliance FCC-B verified (planned)

Operating Systems

OS MS Windows 10 RS3	“Runnable” X	“Tested/Released by Fujitsu” X
MS Windows 10 RS4 Linux-64	X X	X tbd

Important Note:
Legacy OS / MBR installation (DOS, MS Windows 7, …) is not supported due to Intel restrictions

Designed for Industrial Applications

Longlife components
Revision control
Extended lifecycle up to 6 years
Industrial grade EMI immunity

Designed for 24/7 use in industrial applications
Strict control and pre-announcements
Mainboard available for more than five years

Enhanced operating temperature range (0°C-60°C)2

Graphics Intel® UHD Graphics (depends on installed processor), DX12
2 x DisplayPort V1.2
1 x DVI-D
VGA output possible via optional VGA extension module D3653

Audio Realtek ALC671, 5.1- channel, High Definition Audio Codec

TPM TPM V2.0 (Infineon SLB9670; TCG compliant)

LAN Intel i219LM & i210AT with 10/100/1000 MBit/s, AMT 12.0 / vPro Support,
Wake-on-LAN (WoL) by interesting Packets, Link Status Change and
Magic Packet™, PXE Support, BIOS MAC Address Display, Teaming Support

SATA Ports 6 x Serial ATA III 600 Interface (up to 6GBit/s), NCQ, AHCI, RAID 0/1/5/10

M.2 Sockets M.2 2280 Key-M for PCIe-based SSD NVME modules; 4 x PCIe Gen3 lanes
M.2 2230 Key-E for PCIe/USB-based WLAN/Bluetooth modules; 1 x PCIe Gen3, 1 x USB2.0

GPIO Port 8 Bit GPIO (Input/Output); WLAN LED support, WLAN enable/disable support
3.3V / 5V / 12V supply voltage output
SMBus controller PCA9554A

Legacy Ports 1 x internal Parallel Port (pin header)
1 x external RS-232 port
3 x internal RS-232 ports (pin header, 2mm pitch)
1 x PS/2 (mouse)
1 x PS/2 (keyboard)

Features Chipset D3641-S

Board Size iC246 / µATX
VGA3 / DVI-I / DVI-D / DP V1.2 / 2nd DP V1.2 / LVDS / - / - /  /  /  / -
Stereo Audio / 5.1 Multichannel Audio/ Front Panel Audio / - /  / 
Buzzer / internal Speaker Support (mono) /  / 
Dual LAN Gbit / 100 Mbit / 10 Mbit / WoL / LAN Boot / Teaming /  /  /  /  /  / 
AMT 12.0 vPro / Intel Standard Manageability / DASH V1.1 /  /  / 

SATA / SATA-RAID / eSATA-Support / mSATA / M.2 SSD (PCIe) /  /  /  / - / 
USB 2.0 / USB 3.1 (gen1) / USB 3.1 (gen2) /  /  / 
FAN monitored & controlled PSU4 / CPU / AUX1 / AUX2 / Aux3 /  /  /  /  / 
TEMP monitored CPU / onboard sensors / external sensor /  /  / -

Special Features D3641-S

Silent Fan / System Guard /  / 
Recovery BIOS / Desk Update / Multi Boot /  /  / 
HDD Password / EraseDisk5 / TPM V2.0 /  /  / 
BIOS POST Watchdog / BIOS Boot Watchdog / OS HW Watchdog /  /  / 
Logo Boot Option / Intel On Screen Branding /  / 
High Efficiency Core Voltage Regulator Design / /
Operating Mode 24-7 / 8-5 (hrs per day - days per week) /  / -
Mainboard operating temperature range (chassis inside)6 0°C – 60°C

Internal Connectors D3641-S

DIMM Sockets (DDR4-2666) 4
PCI Express x16 (16 Lanes, Gen3) / PCI Express x16 (4 Lanes, Gen3) 1 / 1
PCI Express x1 (Gen3, “open slot”) / PCI Express x1 (Gen3, “closed slot”) 1 / 1
PCI Slots (32Bit, 33 MHz, Rev. 2.3) / Mini-PCIe - / -
SATA-600 / mSATA / M.2 SSD 2280 (Key-M, PCIe/NVME) 6 / - / 1
M.2 2230 (Key-E, PCIe & USB2.0 for WLAN/Bluetooth) 1
S/PDIF (digital Audio) OUT / IN 1 / -
Front Panel Audio (9-Pin, HD Audio) 1
USB 2.0 / USB 3.1 (Gen1) / USB 3.1 (Gen2) / USB 3.1 (Gen2) Stick 7 1 / 1 / - / 1
FAN PSU / CPU / AUX1 / AUX2 / Aux3 1 / 1 / 1 / 1 / 1
Intrusion (Case Open) / GPIO (8Bit) / SM-Bus (Case Temp.) 1 / 1 / -
Serial (COM, RS-232) / Parallel Port Pin Header 8 3 / 1
Front Panel (Power Switch, Reset Switch, LEDs, Intel 10 pin compatible) 1
ATX Power Supply (24 pin + 4 pin) / 12V-only Power Supply  / -

External Connectors D3641-S

VGA Sub D2 / DVI-I / DVI-D / DisplayPort V1.2 - / - / 1 / 2
Audio Mic. In / Line in / Line out (or driver configuration) 1 / 1 / 1
LAN (RJ-45) 2
PS/2 Mouse / Keyboard 1 / 1
USB 2.0 / USB 3.1 (Gen1) / USB 3.1 (Gen2) 4 / 2 / 2
Serial (COM1, RS-232) 1
Parallel (EPP/ECP)