ASROCK J4005B-ITX Manual Download Page 15

English

13

J4105B-ITX
J4005B-ITX

2.3  Jumpers Setup

The illustration shows how jumpers are setup. When the jumper cap is placed on 

the pins, the jumper is “Short”. If no jumper cap is placed on the pins, the jumper is 

“Open”. 

Clear CMOS Jumper

(CLRMOS1)

(see p.1, No. 5)

Short: Clear CMOS 

Open: Default

CLRMOS1 allows you to clear the data in CMOS. The data in CMOS includes 

system setup information such as system password, date, time, and system setup 

parameters.  There are two ways for you to clear and reset the system parameters 

to the default setup. Please turn off the computer and unplug the power cord, then 

you may either short the solder points on CLRMOS1 by using metal material, 

e.g., a paper clip for 3 seconds; or you may use a jumper cap to short the pin on 

CLRMOS1 for 3 seconds. Please remember to remove the paper clip or the jumper 

cap after clearing the CMOS.

2-pin Jumper

*The jumper cap is not provided. 

If you clear the CMOS, the case open may be detected. Please adjust the BIOS option 
“Clear Status” to clear the record of previous chassis intrusion status.

Summary of Contents for J4005B-ITX

Page 1: ...ied including but not limited to the implied warranties or conditions of merchantability or fitness for a particular purpose In no event shall ASRock its directors officers employees or agents be liab...

Page 2: ...s You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure If you require assistance please call AS...

Page 3: ...DDR4_B1 CPU_FAN1 1 USB2_3 HDLED RESET PLED PWRBTN PANEL1 1 COM2 1 SATA3_2 CMOS Battery RoHS 1 HD_AUDIO1 BIOS ROM Front USB 3 0 LAN CLRMOS1 1 USB3_1_2 SATA3_1 Top LINE IN Center FRONT Bottom MIC IN 1 U...

Page 4: ...and Speaker Header SPK_CI1 5 Clear CMOS Jumper CLRMOS1 6 Chassis Fan Connector CHA_FAN1 7 2 x 260 pin DDR4 SO DIMM Slots DDR4_A1 DDR4_B1 8 COM Port Header COM2 9 USB 2 0 Header USB4_5 10 USB 3 1 Gen1...

Page 5: ...nection Blinking Data Activity Orange 100Mbps connection On Link Green 1Gbps connection ACT LINK LED SPEED LED LAN Port I O Panel No Description No Description 1 PS 2 Mouse Keyboard Port 7 USB 2 0 Por...

Page 6: ...re through the audio driver Please set Speaker Configuration to 7 1 Speaker in the Realtek HD Audio Manager Function of the Audio Ports in 7 1 channel Configuration Port Function Light Blue Rear panel...

Page 7: ...ide ASRock J4105B ITX J4005B ITX Support CD 2 x Serial ATA SATA Data Cables Optional 1 x I O Panel Shield Because the motherboard specifications and the BIOS software might be updated the content of t...

Page 8: ...600 12 EUs inside Up to 750MHz for J4105B ITX t Integrated Intel UHD Graphics 600 12 EUs inside Up to 700MHz for J4005B ITX t DX12 OpenGL 4 3 OGL ES 3 0 OpenCL 2 0 t HW Acceleration Decode HEVC H 265...

Page 9: ...ning ESD Protection Supports Energy Efficient Ethernet 802 3az Supports PXE Rear Panel I O 1 x PS 2 Mouse Keyboard Port 1 x Parallel Port ECP EPP Support 1 x Serial Port COM1 1 x D Sub Port 1 x HDMI P...

Page 10: ...ke up events Supports jumperfree SMBIOS 3 0 support Hardware Monitor CPU Chassis temperature sensing CPU Chassis Fan Tachometer CPU Chassis Quiet Fan Auto adjust chassis fan speed by CPU temperature C...

Page 11: ...se physical injuries to you and damages to motherboard components In order to avoid damage from static electricity to the motherboard s components NEVER place your motherboard directly on a carpet Als...

Page 12: ...A 1Rx8 B 2Rx8 C 1Rx16 Dual Channel Memory Configuration DDR4_A1 Populated DDR4_B1 Populated 1 It is not allowed to install a DDR DDR2 or DDR3 memory module into a DDR4 slot otherwise this motherboard...

Page 13: ...English 11 J4105B ITX J4005B ITX 1 2 3...

Page 14: ...re better graphics compability the BIOS is set to boot from Onboard VGA as default even the user install a VGA card on PCIe slot Before installing an expansion card please make sure that the power sup...

Page 15: ...em setup parameters There are two ways for you to clear and reset the system parameters to the default setup Please turn off the computer and unplug the power cord then you may either short the solder...

Page 16: ...ystem Power LED Connect to the power status indicator on the chassis front panel The LED is on when the system is operating The LED keeps blinking when the system is in S1 S3 sleep state The LED is of...

Page 17: ...rt two ports USB 3 1 Gen1 Header 19 pin USB3_1_2 see p 1 No 10 There is one header on this motherboard This USB 3 1 Gen1 header can support two ports Front Panel Audio Header 9 pin HD_AUDIO1 see p 1 N...

Page 18: ...inition Audio supports Jack Sensing but the panel wire on the chassis must support HDA to function correctly Please follow the instructions in our manual and chassis manual to install your system 2 If...

Page 19: ...English 17 J4105B ITX J4005B ITX Serial Port Header 9 pin COM2 see p 1 No 8 This COM2 header supports a serial port module CCTS 1 RRTS 1 DDSR 1 DDTR 1 RRXD1 GND TTXD1 DDCD 1 1 RRI 1...

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