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1. The changes or modifications not expressly approved by the party responsible for com- pliance could void the user’s authority to operate the equipment. 2. Shielded interface cables must be used in order to comply with the emission limits. User's Manual | CS551...
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• To reduce the risk of electric shock, unplug the power cord before removing the sys- tem chassis cover for installation or servicing. After installation or servicing, cover the system chassis before plugging the power cord. User's Manual | CS551...
Memory module • Storage device such as hard disk drive . • Power adaptor External system peripherals may also be required for navigation and display, including at least a keyboard, a mouse and a video display monitor. User's Manual | CS551...
2.0 Parts of the CPUs with the limit of 82/88C operating temprature will have cpu-throttling while operate over 65C, it's strongly advised to choose i7/i5 CPU which limited at 100C due to the original design of CS551. POWER Type...
Event) signal. However, if your system is in the Suspend mode, you can power-on the system only through an IRQ or DMA interrupt. Wake-On-USB This function allows you to use a USB keyboard or USB mouse to wake up a system from the S3 (STR - Suspend To RAM) state. User's Manual | CS551...
When the Standby Power LED lights up, it indicates that there is power on the system board. Power-off the PC then unplug the power cord prior to installing any devices. Failure to do so will cause severe damage to the motherboard and components. User's Manual | CS551...
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Data will be accessed in chunks of 64 bits from the memory channels. Retention Clip Socket Top View Features • 260-pin SO-DIMM up to 32GB • Single Channel DDR4 2666MHz • ECC/Non-ECC, ECC only for C246 with Intel® Core i3-8100T/9100TE/ Pentium G5400T/Pentium G4900T 4 5 ° Step 1 User's Manual | CS551...
Inspect that the clip sits in the notch. If not, please pull the clips outward, release and remove the Step 3 card, and mount it again. User's Manual | CS551...
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These illustrations and photos are for reference only. 4. Unlock the socket by pressing the load lever down, moving it sideways until to escape the retention tab. Lift the load lever up when it’s released. Load lever Retention tab User's Manual | CS551...
Important: 9. Press down the load The CPU will fit in only one orientation and can easily be seated without ex- lever and hook it under erting any force. the retention tab. User's Manual | CS551...
It activates at the temperature between -5~-10°C with LED1 being red on the system board. Below table shows various types of the heater condition. Condition Power Status System status Remark Heating Power off Power on S3-S0 light-loading. Non-heating Power off Green Power on Green User's Manual | CS551...
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Screw the stand-offs onto the chassis. This step can be omitted if there exist pre-installed stand-offs on the chassis. Note: The standard package includes a fanless heatsink. The heatsink with fan is an optional item available upon request. User's Manual | CS551...
Use a screwdriver to fasten the screws onto the chassis tight. Note: It is typical that the chassis is customized, in which case the installation shall vary according to the design of the chassis instead of the instructions provided here. User's Manual | CS551...
Power On Suspend) state, it will blink at 1-second intervals. When the system is in the S3 (STR - Suspend To RAM) state, it will blink at 4-second intervals. 1-2 On: Normal (default) 2-3 On: Clear CMOS Power Switch This switch is used to power on or off the system. User's Manual | CS551...
LVDS/eDP LCD. Incorrect power voltage may cause irre- the specifications of the LCD's backlight power. Incorrect power voltage may versible damage to your LCD panel. cause irreversible damage to your LCD's backlight. User's Manual | CS551...
It is used to transmit audio and video simultaneously. The interface, which • 4 USB 3.1ports, Gen2 for C246/Q370, Gen1 for H310 is developed by VESA, delivers higher performance features than any other digital interface. User's Manual | CS551...
I211AT PCIe (10/100/1000Mbps) or Intel I210IT PCIe (10/100/1000Mbps) ® ® The Wake-On-USB Keyboard/Mouse function allows you to use a USB keyboard or USB mouse to wake up a system from the S3 (STR - Suspend To RAM) state. User's Manual | CS551...
RTS- N.C. N.C. A power adaptor/converter is necessary when the power source on site does not SMBus comply with the power specifications of the board. CTS- N.C. N.C. N.C. N.C. User's Manual | CS551...
Line-Out-R Mic-JD (sense) cables to a connector. Wake-On-USB Keyboard/Mouse The Wake-On-USB Keyboard/Mouse function allows you to use a USB keyboard or USB mouse Line-Out-L SMBus Line-JD (sense) to wake up a system from the S state(s). User's Manual | CS551...
SATA connector and the other end to your Serial ATA device. SMBus Pin Assignment Pin Assignment L_CLK L_LAD1 L_RST# L_LAD0 L_FRAME# 3.3V SATA Power Pin Assignment SATA Pin Assignment L_LAD3 L_LAD2 SERIRQ 5VSB N.C. User's Manual | CS551...
Ground • There exists explosion hazard if the battery is incorrectly installed. Power • Replace only with the same or equivalent type recommended by the manufacturer. Sense • Dispose of used batteries according to local ordinances. User's Manual | CS551...
+12V PWM Brightness Control SMBus Jumper Setting Battery The power voltage of the LCD panel and backlight power is configured via jumper settings as R4_1 SODIMM Mini PCIe previously instructed in this chapter. Backlight On/Off SMBus User's Manual | CS551...
The Mini PCIe socket allows for a full-size Mini PCIe module, and supports PCIe and USB sig- SMBus nals. Pin Assignment Pin Assignment Manual Reset 12VSB_PG_SW Nano SIM (optional) The Nano SIM socket allows for inserting a Nano SIM card for the system to access the sub- scribed telecom service. User's Manual | CS551...
Screw tight the card onto the stand-off with a screw driver and a stand-off screw until the gap between the card and the stand-off closes up. The card should be lying parallel to the board when it’s correctly mounted. User's Manual | CS551...
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Screw tight the card onto the stand- off with a screw driver and a stand- off screw until the gap between the card and the stand-off closes up. The card should be lying paral- lel to the board when it’s correctly mounted. User's Manual | CS551...
When “X” appears on the left of a particular field, it indicates that a submenu which contains additional options are available for that field. To display the submenu, move the highlight to that field and press <Enter>. User's Manual | CS551...
The time format is <hour>, <minute>, <second>. The time is based on the 24-hour military-time clock. For example, 1 p.m. is 13:00:00. Hour displays hours from 00 to 23. Minute displays min- utes from 00 to 59. Second displays seconds from 00 to 59. User's Manual | CS551...
35W . If the temperature reaches 80C, the option will be default at 15W. Note: Some of the fields may not be available when the features are not supported by the equipped CPU. User's Manual | CS551...
Enable or disable turbo mode of the processor. This field will only be displayed when EIST is enabled. C states Enable or disable CPU Power Management. It allows CPU to enter "C states" when it’s idle and nothing is executing. User's Manual | CS551...
Select the backlight type of the LCD Panel — Normal + PWM Normal + DC Invert + PWM Invert + DC Note: The configuration must match the specifications of your LCD Panel in order for the LCD Panel to display properly. User's Manual | CS551...
SuperIO WatchDog Timer Electrical Interface Mode Set SuperIO WatchDog Timer Timeout value. The range is from 0 (disabled) to 255. Choose mode between RS232 / RS485 / RS422 Note: The sub-menus are detailed in following sections. User's Manual | CS551...
▼ SYS Smart Fan/CPU Smart Fan Control = [Disabled] Fix Fan Speed Count Set the fan speed, the value ranging from 1-100%, 100% being full speed. The fans will al- ways operate at the specified speed regardless of gauged temperatures. User's Manual | CS551...
▼ SYS Smart Fan/CPU Smart Fan Control = [Disabled] Fix Fan Speed Count Set the fan speed, the value ranging from 1-100%, 100% being full speed. The fans will al- ways operate at the specified speed regardless of gauged temperatures. User's Manual | CS551...
Enable or disable USB Mass Storage Driver Support. Parity Select parity bits: None, Even, Odd, Mark or Space. Stop Bits Select stop bits: 1 bit or 2 bits. Flow Control Select flow control type: None or Hardware RTS/CTS. User's Manual | CS551...
Set the number of times the presence of media will be checked. Use either +/- or numeric keys This field determines OpROM execution policy for devices other than Network, Storage or to set the value. Video. User's Manual | CS551...
Version 2.20.1271. Copyright (C) 2019 American Megatrends, Inc. Version 2.20.1271. Copyright (C) 2019 American Megatrends, Inc. Primary Display Select which of IGFX/PEG/PCI Graphics device to be the primary display. Internal Graphics Keep IGFX enabled based on the setup options. User's Manual | CS551...
PCIE1 port. This field may not appear when the speed of the port is not configurable. Hot Plug Enable or disable hot plug function of the port. This field may not appear when the port does not support hot plug. User's Manual | CS551...
This field shows up when SATA Mode Selection is set to Intel RST Premium With Intel Optane System Acceleration. Enable or disable to use RST Legacy OROM when CSM is enabled. Port and Hot Plug Enable or disable the Serial ATA port and its hot plug function. User's Manual | CS551...
F10: Save & Exit ESC: Exit Version 2.20.1271. Copyright (C) 2019 American Megatrends, Inc. HD Audio Control the detection of the HD Audio device. Disabled HDA will be unconditionally disabled. Enabled HDA will be unconditionally enabled. User's Manual | CS551...
Secure Boot. Press Enter and a prompt will show up for you to confirm. Reset To Setup Mode Clear the database from the NVRAM, including all the keys and signatures installed in the Key Management menu. Press Enter and a prompt will show up for you to confirm. User's Manual | CS551...
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Export the Secure Boot settings (i.e. all keys and signatures) as files to the root directory of a file system device. Press Enter and select a storage device listed in the pop-up menu. The saved files will be named automatically according to the type of key/signature as listed below. User's Manual | CS551...
This field will appear only when a USB flash device is detected. Select this field to restore set- “UEFI only” and “Quiet Boot” is set to enabled, “BGRT Logo” will show up for ting from the USB flash device. configuration. Refer to the Advanced > CSM Configuration for more information. User's Manual | CS551...
When the BIOS IC needs to be replaced, you have to populate it properly onto the system board after the EEPROM programmer has been burned and follow the technical person's instructions to confirm that the MAC address should be burned or not. User's Manual | CS551...