Page 2
Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing.
Contents Safety information ...................... iv About this guide ......................v Package contents ....................... vi PRIME B660M-K D4 specifications summary ............vi Chapter 1 Product Introduction Before you proceed ..................1-1 Motherboard overview ................. 1-1 Central Processing Unit (CPU) ..............1-7 System memory ....................
Safety information Electrical safety • To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system. • When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device.
Refer to the following sources for additional information and for product and software updates. ASUS website The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information. Optional documentation Your product package may include optional documentation, such as warranty flyers, that may have been added by your dealer.
Supports Intel Turbo Boost Technology 2.0 and Intel Turbo Boost Max ® ® Technology 3.0** * Refer to www.asus.com for CPU support list. ** Intel ® Turbo Boost Max Technology 3.0 support depends on the CPU types. Intel B660 Chipset Chipset ®...
Page 7
PRIME B660M-K D4 specifications summary 1 x Realtek 1Gb Ethernet Ethernet Rear USB (Total 6 ports) 4 x USB 3.2 Gen 1 ports (4 x Type-A ) 2 x USB 2.0 ports (2 x Type-A) Front USB (Total 6 ports) 1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports...
Page 8
11 64-bit ® Operating System Windows 10 64-bit ® mATX Form Factor Form Factor 9.6 inch x 8.3 inch (24.4 cm x 21.1 cm) Specifications are subject to change without notice. Refer to the ASUS website for the latest specifications. viii...
Unplug the power cord before installing or removing the motherboard. Failure to do so can cause you physical injury and damage motherboard components. The pin definitions in this chapter are for reference only. The pin names depend on the location of the header/jumper/connector. PRIME B660M-K D4...
Page 10
1.2.1 Layout contents 1. CPU socket The motherboard comes with an Intel Socket LGA1700 for 12 Gen Intel Core™, Pentium ® ® ® Gold and Celeron Processors. ® For more details, refer to Central Processing Unit (CPU). 2. DDR4 DIMM slots The motherboard comes with Dual Inline Memory Modules (DIMM) slots designed for DDR4 (Double Data Rate 4) memory modules.
Page 11
11. COM Port header This header is for a serial (COM) port. Connect the serial port module cable to this header, then install the module to a slot opening at the back of the system PIN 1 chassis. PRIME B660M-K D4...
Page 12
12. Front Panel Audio header This header is for a chassis-mounted front panel audio I/O module that supports HD audio standard. Connect one end of the front panel audio I/O module cable to this header. • We recommend that you connect a high-definition front panel AAFP audio module to this header to avail of the motherboard’s high- definition audio capability.
Page 13
Refer to the table below for the Ethernet port LED indications. Ethernet port LED indications ACT/LINK SPEED Activity Link LED Speed LED Status Description Status Description No link 10 Mbps connection ORANGE Linked 100 Mbps connection ORANGE Ethernet port BLINKING Data activity GREEN 1 Gbps connection PRIME B660M-K D4...
Page 14
Line In port (light blue). This port connects the tape, CD, DVD player, or other audio sources. Line Out port (lime). This port connects a headphone or a speaker. In 4-channel, 5.1-channel, and 7.1-channel configurations, the function of this port becomes Front Speaker Out.
CPU designed for LGA1155, LGA1156, LGA1151, and LGA1200 sockets on the LGA1700 socket. • ASUS will not cover damages resulting from incorrect CPU installation/removal, incorrect CPU orientation/placement, or other damages resulting from negligence by the user. Installing the CPU...
(D/C) from the same vendor. Check with the retailer to get the correct memory modules. • Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists), and memory frequency support depends on the CPU types. Recommended memory configurations...
Page 18
Installing a DIMM To remove a DIMM 1-10 Chapter 1: Product Introduction...
BIOS and RAID Support Knowing BIOS The new ASUS UEFI BIOS is a Unified Extensible Interface that complies with UEFI architecture, offering a user-friendly interface that goes beyond the traditional keyboard- only BIOS controls to enable a more flexible and convenient mouse input. You can easily navigate the new UEFI BIOS with the same smoothness as your operating system.
BIOS Setup program Use the BIOS Setup to update the BIOS or configure its parameters. The BIOS screens include navigation keys and brief onscreen help to guide you in using the BIOS Setup program. Entering BIOS at startup To enter BIOS Setup at startup, press <Delete> or <F2> during the Power-On Self Test (POST).
ASUS EZ Flash 3 The ASUS EZ Flash 3 feature allows you to update the BIOS without using an OS-based utility. Ensure to load the BIOS default settings to ensure system compatibility and stability. Select the Load Optimized Defaults item under the Exit menu or press hotkey <F5>.
ASUS CrashFree BIOS 3 The ASUS CrashFree BIOS 3 utility is an auto recovery tool that allows you to restore the BIOS file when it fails or gets corrupted during the updating process. You can restore a corrupted BIOS file using a USB flash drive that contains the BIOS file.
For more information on configuring your RAID sets, please refer to the RAID Configuration Guide which you can find at https://www.asus.com/support, or by scanning the QR code. RAID definitions RAID 0 (Data striping) optimizes two identical hard disk drives to read and write data in parallel, interleaved stacks.
Appendix Notices FCC Compliance Information Responsible Party: Asus Computer International Address: 48720 Kato Rd., Fremont, CA 94538, USA Phone / Fax No: (510)739-3777 / (510)608-4555 This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Page 26
Compliance Statement of Innovation, Science and Economic Development Canada (ISED) This device complies with Innovation, Science and Economic Development Canada licence exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.
Page 27
ASUS products sold in Vietnam, on or after September 23, 2011,meet the requirements of the Vietnam Circular 30/2011/TT-BCT. Các sản phẩm ASUS bán tại Việt Nam, vào ngày 23 tháng 9 năm2011 trở về sau, đều phải đáp ứng các yêu cầu của Thông tư 30/2011/TT-BCT của Việt Nam.
Page 28
ASUS Recycling/Takeback Services ASUS recycling and takeback programs come from our commitment to the highest standards for protecting our environment. We believe in providing solutions for you to be able to responsibly recycle our products, batteries, other components as well as the packaging materials.
Page 29
Yönergelerin diğer ilgili koşullarıyla uyumlu olduğunu beyan eder. AB Cijeli tekst EU izjave o sukladnosti dostupan je na: www.asus.com/support uygunluk bildiriminin tam metni şu adreste bulunabilir: Čeština Společnost ASUSTeK Computer Inc. tímto prohlašuje, že www.asus.com/support...
• ASUS offers a voluntary manufacturer’s Commercial Guarantee. • ASUS dragovoljno nudi komercijalno proizvođačko jamstvo. • ASUS reserves the right to interpret the provisions of the ASUS • ASUS zadržava prava na tumačenje odredbi ASUS komercijalnog Commercial Guarantee. jamstva. •...
Page 31
• ASUS tilbyr som produsent en frivillig kommersiell garanti. • Bảo hành thương mại này của ASUS được cung cấp độc lập và ngoài • ASUS forbeholder seg retten til å tolke bestemmelsene i ASUS sin Bảo đảm pháp lý theo luật định và không có cách nào ảnh hưởng đến kommersielle garanti.