IMB-A1003
IMB-A1003
IMB-A1003
IMB-A1003

IMB-A1003 Mini-ITX Motherboard

  • AMD EPYC™ 4005/4004 and AMD Ryzen™ 9000/8000/7000 Series Processors with B650 Chipset
  • 2 x 262-pin ECC/non-ECC SO-DIMM DDR5 5200 MHz, up to 96GB (48GB per DIMM)
  • 1 x PCIe x16 (Gen5), 4 x USB 3.2 Gen2, 2 x USB 3.2 Gen1, 4 x USB 2.0, 1 x M.2 Key M, 1 x M.2 Key E, 2 x COM, 2 x SATA3
  • 2 x Realtek Gigabit LAN
  • Supports Quad display, 4 x DP 1.2++
  • TPM 2.0 onboard IC
  • 12~28V DC-In (Lockable DC Jack)
Datasheet
Specification

Processor System

CPU Supports AMD EPYC™ 4005/4004 and AMD Ryzen™ 9000/8000/7000 Series Desktop Processors*, up to 65W
*The availability of expansion slots may vary by CPU. Please refer to PCIe Bandwidth Table for details.
https://download.asrock.com/IPC/Others/AM5_PCIe_Bandwidth_Table.pdf

Chipset AMD B650
Socket AM5
BIOS AMI SPI 256 Mbit

Form Factor

Dimensions Mini-ITX (6.7-in x 6.7-in x 1.5-in, 17.0 cm x 17.0 cm x 3.7 cm)

Memory

Technology Dual Channel ECC/non-ECC DDR5 5200 MHz
*ECC support may vary by CPU
Capacity 96GB (48GB per DIMM)
Socket 2 x 262-pin SO-DIMM

Graphics

Controller AMD RDNA™ 2 Architecture
DisplayPort DisplayPort 1.2, DP++
Max resolution up to 4096x2160@60Hz
MultiDisplay Quad Display

Expansion Slot

PCIe 1 x PCIe x16 (Gen5)
M.2 1 x M.2 (Key E, 2230) with PCIe Gen 4 x1, USB 2.0 for Wireless

Audio

Interface Realtek ALC897, High Definition Audio. Mic-in, Line-out

Ethernet

Controller/ Speed LAN1: Realtek RTL8111H with 10/100/1000 Mbps
LAN2: Realtek RTL8111H with 10/100/1000 Mbps
Connector 2 x RJ-45

Rear I/O

DisplayPort 4 x DP 1.2++
Ethernet 2 x 1 Gigabit LAN
USB 4 x USB 3.2 Gen 2
2 x USB 2.0
Audio 2 (Mic-in, Line-out)

Internal Connector

USB 2 x USB 3.2 Gen1
2 x USB 2.0 (1 x 2.54 pitch header)
COM COM1, COM2
(RS-232/422/485/TTL 5V/ccTalk, switch by Jumper setting)

Security

TPM TPM 2.0 onboard IC

Storage

M.2 1 x M.2 Key M (2242/2280) with PCIe Gen4 x4, and USB 2.0
SATA 2 x SATA3 (6Gb/s)

Watchdog Timer

Output From Super I/O to drag RESETCON#
Interval 256 Segments, 0, 1, 2, ...255sec

Power Requirements

Input PWR 12~28V DC-In with 4-pin wafer PWR cable or DC Jack(Screw type)
Power On AT/ATX Supported
- AT : Directly PWR on as power input ready
- ATX : Press button to PWR on after power input ready

Environment

Operating Temp -20ºC ~ 60ºC
Storage Temp -40° C ~ 85° C
Operating Humidity 5% ~ 90%
Storage Humidity 5% ~ 90%

Accessories

Gift Package 2 x COM Cable (14G000000310AK)
2 x SATA Cable (14G00010107DAK)
1 x SATA Power Cable (14G000100410AK)
1 x I/O Shield (13G02P101000AK)
2 x SCREW M3*2.5 (13G02P072010AK)
1 x 3.35mm M3 NUT (13G02P059010AK)
Bulk Package 1 x I/O Shield (13G02P101000AK)
2 x SCREW M3*2.5 (13G02P072010AK)
1 x 3.35mm M3 NUT (13G02P059010AK)

The specification is subject to change without notice in advance. The brand and product names are trademarks of their respective companies. Any configuration other than original product specification is not guaranteed.

Support

OS:

Description Information OS Date Download
Description NPU driver ver: 0.128 Information

Size: 47Mib
Version: 0.128
SHA1: 59BA3AFDE9611DF0AC5F7A09868B0E8251B322DE
Filename: npudriver(0.128).zip
Release Note

OS Win 11 x 64 Date 2025-05-06 Download
Description COM Port driver ver: 1.8.1.24.0902 Information

Size: 1795Kib
Version: 1.8.1.24.0902
SHA1: A13587FA2751724BF4A48A5B7B3ECE585E3ED1EE
Filename: COM(v1.8.1.24.0902).zip
Release Note

OS Win 11 x 64 Date 2025-05-06 Download
Description VGA driver ver: 24.8.1 Information

Size: 728Mib
Version: 24.8.1
SHA1: 230B7F386BB41CD980AEC05062661F13B345BD3D
Filename: AMD_VGA(24.8.1).zip
Release Note

OS Win 11 x 64 Date 2025-05-06 Download
Description Realtek Lan driver ver: 10.060.0615.2022 Information

Size: 10Mib
Version: 10.060.0615.2022
SHA1: 22FBF1F5494D18C2E4B467C867CF6CFCA347FF04
Filename:Realtek_LAN(v10.060.0615.2022).zip
Release Notee

OS Win 11 x 64 Date 2024-07-19 Download
Description Realtek high definition audio driver ver:9618.1_UAD_WHQL Information

Size: 47Mib
Version: 9618.1_UAD_WHQL
SHA1: B79D12913E545DAE372DCBDD145792DAF41846CD
Filename:Realtek_Audio(v9618.1_UAD_WHQL).zip
Release Note

OS Win 11 x 64 Date 2024-07-19 Download
Description AMD RAIDXpert2 utility ver:9.3.2.00255 Information

Size: 128Mib
Version: 9.3.2.00255
SHA1: 61ECEC5E0D27277ABCCD7C1847627DD30A802F81
Filename: Raid_driver(9.3.2.00255).zip
Release Note

OS Win 11 x 64 Date 2025-05-06 Download
Description Chipset Driver ver:6.07.22.037 Information

Size: 63Mib
Version: 6.07.22.037
SHA1: 4591F2E722A32E4E8E82D810C07FC5EC03F40E96
Filename: Chipset_Driver_ver(6.07.22.037).zip
Release Note

OS Win 11 x 64 Date 2025-05-06 Download
Version Update BIOS Under / How to Update Description Information Date Download
Version 1.00 Update BIOS Under / How to Update BIOS Description First release Information

Size: 11 MiB    

SHA1: F7EFE6E9ECF273C704E357B0645A339F298D7086

Date 2026-02-12 Download
Version 1.00 Update BIOS Under / How to Update Windows Description First release Information

Size: 12 MiB    

SHA1: 4B542C91DE629EA593C723809B17EDF69B2B6998

Date 2026-02-12 Download

The format of our documents are in PDF files. If you have not installed Adobe Acrobat Reader, please get it from Adobe.

Description Language Date Download
Description User Manual Language English Date 2026-03-18 Download
Description Jumpers and Headers Setting Guide Language English Date 2026-03-18 Download
Description Date Download
Download CPU Support List Date 2026-04-10 Download
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