IBASE Technology MB998 Series User manual

MB998 Series
Intel®13th/12th Gen Core™i9/i7/i5/i3
Micro ATX Motherboard
with Intel® R680/W680/Q670E PCH
User’s Manual
Version 1.0
(May 2023)

ii
MB998 User’s Manual
Copyright
©2023 IBASE Technology, Inc. All rights reserved.
No part of this publication may be reproduced, copied, stored in a retrieval
system, translated into any language or transmitted in any form or by any
means, electronic, mechanical, photocopying, or otherwise, without the prior
written consent of IBASE Technology, Inc. (hereinafter referred to as
“IBASE”).
Disclaimer
IBASE reserves the right to make changes and improvements to the
products described in this document without prior notice. Every effort has
been made to ensure the information in the document is correct; however,
IBASE does not guarantee this document is error-free.
IBASE assumes no liability for incidental or consequential damages arising
from misapplication or inability to use the product or the information
contained herein, nor for any infringements of rights of third parties, which
may result from its use.
Trademarks
All the trademarks, registrations and brands mentioned herein are used for
identification purposes only and may be trademarks and/or registered
trademarks of their respective owners.

MB998 User’s Manual
iii
Compliance
This product has passed CE tests for environmental specifications and limits.
This product is in accordance with the directives of the European Union (EU).
In a domestic environment, this product may cause radio interference in
which case users may be required to take adequate measures.
This product has been tested and found to comply with the limits for a Class
B device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with manufacturer’s
instructions, may cause harmful interference to radio communications.
WEEE
This product must not be disposed of as normal household
waste, in accordance with the EU directive of for waste
electrical and electronic equipment (WEEE - 2012/19/EU).
Instead, it should be disposed of by returning it to a
municipal recycling collection point. Check local
regulations for disposal of electronic products.
Green IBASE
This product is compliant with the current RoHS
restrictions and prohibits use of the following substances in
concentrations exceeding 0.1% by weight (1000 ppm)
except for cadmium, limited to 0.01% by weight (100 ppm).
•Lead (Pb)
•Mercury (Hg)
•Cadmium (Cd)
•Hexavalent chromium (Cr6+)
•Polybrominated biphenyls (PBB)
•Polybrominated diphenyl ether (PBDE)

iv
MB998 User’s Manual
Important Safety Information
Carefully read the precautions before using the board.
Environmental conditions:
Use this product in environments with ambient temperatures between
0˚C and 60˚C.
Do not leave this product in an environment where the storage
temperature may be below -20°C or above 80°C. To prevent from
damages, the product must be used in a controlled environment.
Care for your IBASE products:
Before cleaning the PCB, unplug all cables and remove the battery.
Clean the PCB with a circuit board cleaner or degreaser, or use cotton
swabs and alcohol.
Vacuum the dust with a computer vacuum cleaner to prevent the fan
from being clogged.
WARNING
Attention during use:
Do not use this product near water.
Do not spill water or any other liquids on this product.
Do not place heavy objects on the top of this product.
Anti-static precautions
Wear an anti-static wrist strap to avoid electrostatic discharge.
Place the PCB on an anti-static kit or mat.
Hold the edges of PCB when handling.
Touch the edges of non-metallic components of the product instead of
the surface of the PCB.
Ground yourself by touching a grounded conductor or a grounded bit of
metal frequently to discharge any static.
CAUTION
Danger of explosion if the internal lithium-ion battery is replaced by an
incorrect type. Replace only with the same or equivalent type recommended
by the manufacturer. Dispose of used batteries according to the
manufacturer’s instructions or recycle them at a local recycling facility or
battery collection point.

MB998 User’s Manual
v
Warranty Policy
IBASE standard products:
24-month (2-year) warranty from the date of shipment. If the date of
shipment cannot be ascertained, the product serial numbers can be
used to determine the approximate shipping date.
3rd-party parts:
12-month (1-year) warranty from delivery for the 3rd-party parts that are
not manufactured by IBASE, such as CPU, CPU cooler, memory,
storage devices, power adapter, panel and touchscreen.
＊PRODUCTS, HOWEVER, THAT FAIL DUE TO MISUSE, ACCIDENT,
IMPROPER INSTALLATION OR UNAUTHORIZED REPAIR SHALL
BE TREATED AS OUT OF WARRANTY AND CUSTOMERS SHALL
BE BILLED FOR REPAIR AND SHIPPING CHARGES.
Technical Support & Services
1. Visit the IBASE website at www.ibase.com.tw to find the latest
information about the product.
2. If you need any further assistance from your distributor or sales
representative, prepare the following information of your product and
elaborate upon the problem.
Product model name
Product serial number
Detailed description of the problem
The error messages in text or in screenshots if there is any
The arrangement of the peripherals
Software in use (such as OS and application software, including the
version numbers)
3. If repair service is required, you can download the RMA form at
http://www.ibase.com.tw/english/Supports/RMAService/. Fill out the
form and contact your distributor or sales representative.

vi
MB998 User’s Manual
Table of Contents
Chapter 1 General Information...............................................1
1.1 Introduction .........................................................................................2
1.2 Features..............................................................................................2
1.3 Packing List.........................................................................................3
1.4 Optional Accessories...........................................................................3
1.5 Specifications......................................................................................4
1.6 Block Diagram.....................................................................................6
1.7 Product View.......................................................................................7
1.8 Board Dimensions...............................................................................8
Chapter 2 HardwareConfiguration..........................................9
2.1 Essential Installations Before You Begin............................................10
2.2 Setting the Jumpers...........................................................................11
2.3 Jumper & Connector Locations..........................................................12
2.4 Jumpers Quick Reference.................................................................13
2.4.1 JP1: PCI Express Bifurcation................................................13
2.4.2 JP2: AT/ATX Select..............................................................14
2.4.3 JP3: Clear RTC....................................................................15
2.4.4 JP4: Clear CMOS.................................................................16
2.4.5 JP5: Flash Descriptor Security Overide (Factory use only)...17
2.4.6 JP6: Sierra EM919x 5G card USB/PCIe Select ....................18
2.5 Connectors Quick Reference.............................................................19
2.5.1 CN7: COM1 & COM2 RS-232/422/485 Ports .......................20
2.5.2 CN8, CN9, CN10, CN11: SATA Connectors.........................21
2.5.3 J1: S3 Status Connector.......................................................22
2.5.4 J2: Front Panel Audio Connector..........................................23
2.5.5 J3, J4: COM3, COM4 RS232 Serial Ports ............................24
2.5.6 J5: PS2 Keyboard/Mouse Connector....................................25
2.5.7 J6: M.2 M-Key NVME (CPU)................................................26
2.5.8 J7: PWM Programming (Factory use only) ...........................26
2.5.9 J8: DVI-D Connector............................................................27
2.5.10 J9: eSPI Debug (Factory use only).......................................28
2.5.11 J10: Digital I/O Connector (4 in, 4 out)..................................29
2.5.12 J11: DDR5 UDIMM CHA 0 ...................................................30
2.5.13 J12: DDR5 UDIMM CHB 0 ...................................................30
2.5.14 J13: M.2 E-Key Socket.........................................................31

MB998 User’s Manual
vii
2.5.15 J14: M.2 M-Key Socket.........................................................31
2.5.16 J15: M.2 B-Key Socket .........................................................32
2.5.17 J16: SIM Card Slot................................................................32
2.5.18 J17: Front Panel Connector..................................................33
2.5.19 J18: 24-pin ATX Power Connector........................................34
2.5.20 J19: SPI Flash Connector (Factory use only)........................35
2.5.21 J20: USB 2.0 #7/#8 Connector .............................................36
2.5.22 ATX_12V_2X1: AT 12V Power Connector............................37
2.5.23 CPU_FAN1: CPU Fan Power Connector ..............................38
2.5.24 SYS_FAN1, SYS_FAN2: System Fan Power Connectors.....39
Chapter 3 Drivers Installation.............................................41
3.1 Introduction........................................................................................42
3.2 Intel®Chipset Software Installation Utility...........................................42
3.3 VGA Driver Installation.......................................................................44
3.4 Realtek HD Audio Driver Installation ..................................................46
3.5 Intel®ME Drivers Installation..............................................................47
3.6 Intel®Serial IO Drivers Installation .....................................................48
3.7 LAN Drivers Installation......................................................................49
Chapter 4 BIOS Setup..........................................................51
4.1 Introduction........................................................................................52
4.2 BIOS Setup........................................................................................52
4.3 Main Settings.....................................................................................53
4.4 Advanced Settings.............................................................................53
4.5 Chipset Settings.................................................................................66
4.6 Security Settings................................................................................71
4.7 Boot Settings .....................................................................................73
4.8 Save & Exit Settings ..........................................................................74
4.9 MEBx.................................................................................................75
Appendix........................................................................................77
A. I/O Port Address Map ........................................................................78
B. Interrupt Request Lines (IRQ)............................................................80
C. Watchdog Timer Configuration...........................................................81
D. Onboard Connector Types.................................................................85
E. MB998 USB Power Control Bit Mapping. ...........................................86

viii
MB998 User’s Manual
This page is intentionally left blank.

1
Chapter 1
General Information
The information provided in this chapter includes:
Features
Packing List
Optional Accessories
Specifications
Block Diagram
Product View
Board Dimensions

2
MB998 User’s Manual
1.1 Introduction
MB998 is a Micro ATX motherboard based on 13th/12th Gen Intel® Core
i9/i7/i5/i3™processors. With support for two DDR5 slots accommodating up
to 64GB memory, it supports independent displays with HDMI (2.0b), DVI-D
and 2x DisplayPort(1.4) (DP++) interface. This high-performance platform
meets demands in next-generation applications in imaging, AI, and edge
computing.
1.2 Features
13th /12th Gen Intel Core i9/i7/i5/i3 and Pentium / Celeron Processors
2x DDR5 DIMM sockets, Max. 64GB
Intel processor integrated graphics supporting HDMI (2.0b), DVI-D and
2x DisplayPort (1.4) (DP++)
Dual Intel 2.5G LAN
4x USB 3.2, 2x USB 3.1, 2x USB 2.0, 4x COM, 4x SATA III
1x PCI-E (x16) [Gen.5.0], 1x PCI-E (x4) [Gen.4.0], 1x PCI-E (x4)
[Gen.3.0]
4x M.2 (B-key, E-key and 2x M-Key)
Watchdog timer, Digital I/O, iAMT(16.1), fTPM

General Information
MB998 User’s Manual
3
1
1.3 Packing List
Your MB998 package should include the items listed below. If any of the
items below is missing, contact the distributor or dealer from whom you
purchased the product.
MB998 x 1
IO Shield x 1
SATA cable x 1
COM cable x 1
Disk (containing drivers) x 1
This User’s Manual x 1
1.4 Optional Accessories
Audio Cable
USB 2.0 Cable
Cooler
PS/2 Keyboard & Mouse Cable

4
MB998 User’s Manual
1.5 Specifications
Model
MB998AF-R
LGA1700 R680E MicroATX Motherboard with 1x HDMI, 2x
DisplayPort, 1x DVI-D, dual 2.5GbE, 4x SATA, RAID, iAMT
(16.1), fTPM
MB998AF-Q
LGA1700 Q670E MicroATX Motherboard with 1x HDMI, 2x
DisplayPort, 1x DVI-D, dual 2.5GbE, 4x SATA, RAID, iAMT
(16.1), fTPM
MB998AF-W
(Not IoTG sku)
LGA1700 W680 MicroATX Motherboard with 1x HDMI, 2x
DisplayPort, 1x DVI-D, dual 2.5GbE, 4x SATA, RAID, iAMT
(16.1), fTPM
Specifications
CPU
Socket
LGA1700
CPU
13th/12th Gen Intel® Core™ i9/i7/i5/i3
and Pentium® / Celeron®
Processors
PCH
MB998AF-R: Intel® R680E PCH
MB998AF-Q: Intel® Q670E PCH
MB998AF-W: Intel® W680E PCH
(Not IoTG sku)
Memory
2x DDR5 DIMM sockets
Supports DDR5-4800/5600 module,
Max. 64GB
BIOS
AMI
Watchdog
Timer
256 levels
Hardware
Monitor
Yes
Storage
Interface
SATA III & NVMe
Expansion
Slots
1x PCI-E (x16) [Gen.5.0], 1x PCI-E
(x4) [Gen.4.0],
1x PCI-E (x4) [Gen.3.0]
Mini Type
Slots
2x M.2 (M-key, type:2280, PCI-E)
1x M.2 (E-Key, type:2230, USB
2.0 + PCI-E)

General Information
MB998 User’s Manual
5
1
1x M.2 (B-Key, type:3052, USB
3.1 + PCI-E)
Graphics
13th/12th Gen Intel® Core™ i9/i7/i5/i3
processor integrated
Video
Output
1x HDMI (2.0b) + 2x DisplayPort
(1.4b) (DP++) + DVI-D
Ethernet
LAN 1: Intel® I226LM, supports
2.5G and iAMT
LAN 2: Intel® I226V, supports
2.5G only
I/O Chipset
Fintek F81964D-I
Serial Port
4x COM ports : 2x RS232/422/485 +
2x RS232
USB 2.0
2x USB 2.0 via pin header
USB 3.X
4x USB 3.2, 2x USB 3.1 @edge connector
Serial ATA
4x SATA III
Audio
Built-in HD Audio controller + Realtek ALC888S (7.1 channels)
TPM
Supports fTPM
Others
Digital I/O (4-in/4-out) , Watchdog timer, SIM card slot
Physical
Dimensions
(L x W)
244mm x 244mm (9.6“ x 9.6“)
Environmental
Operating
Temperature
0 ~ 60 °C (32 ~ 140 °F)
Storage
Temperature
-20 ~ 80 °C (-4 ~ 176 °F)
All specifications are subject to change without prior notice.

6
MB998 User’s Manual
1.6 Block Diagram

General Information
MB998 User’s Manual
7
1
1.7 Product View
Top View
Bottom View

8
MB998 User’s Manual
I/O View
1.8 Board Dimensions

9
Chapter 2
Hardware Configuration
This section provides information on jumper settings and
connectors on the MB998 and other installation
information in order to set up a workable system. The
topics covered are:
Essential installations before you begin
Jumper and connector locations
Jumper settings and information of connectors

10
MB998 User’s Manual
2.1 Essential Installations Before You Begin
Follow the instructions below to install the memory modules.
2.1.1 Installing the Memory
To install the modules, locate the memory slot on the board and perform the
following steps:
1. Align the key of the memory module with that on the memory slot and
insert the module slantwise.
2. Gently push the module in an upright position until the clips of the slot
close to hold the module in place when the module touches the bottom
of the slot.
To remove the module, press the ejector tabs at both ends outwards.

Hardware Configuration
MB998 User’s Manual
11
2
2.2 Setting the Jumpers
Set up and configure your MB998 by using jumpers for various settings and
features according to your needs and applications. Contact your supplier if
you have doubts about the best configuration for your use.
2.2.1 How to Set Jumpers
Jumpers are short-length conductors consisting of several metal pins with a
non-conductive base mounted on the circuit board. Jumper caps are used to
have the functions and features enabled or disabled. If a jumper has 3 pins,
you can connect either PIN1 to PIN2 or PIN2 to PIN3 by shorting.
A 3-pin jumper
A jumper cap
Refer to the illustration below to set jumpers.
Pin closed
Oblique view
Illustration
Open
1-2
2-3
When two pins of a jumper are encased in a jumper cap, this jumper is
closed, i.e., turned On.
When a jumper cap is removed from two jumper pins, this jumper is open,
i.e., turned Off.
Pin# 1 23
1 2 3
1 2 3
1 2 3

12
MB998 User’s Manual
2.3 Jumper & Connector Locations