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| SPECIFICATIONS | |
| Brand | ASRock |
| Series | Pro |
| Model | B550M-ITX/ac |
| CPU | Supports AMD AM4 Socket Ryzen 3000, 4000 G-Series and 5000 Series Desktop Processors* |
| Digi Power design | |
| 8 Power Phase design | |
| *Not compatible with AMD Ryzen 5 3400G and Ryzen 3 3200G. | |
| Chipset | AMD B550 |
| Memory | Dual Channel DDR4 Memory Technology |
| 2x DDR4 DIMM Slots | |
| AMD Ryzen series CPUs (Matisse) support DDR4 4600 (OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory* | |
| AMD Ryzen series APUs (Renoir) support DDR4 4733 (OC) / 4666(OC) / 4600(OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory* | |
| Max. capacity of system memory: 64GB** | |
| Supports Extreme Memory Profile (XMP) memory modules | |
| 15μ Gold Contact in DIMM Slots | |
| **Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows 32-bit OS. For Windows 64-bit OS with 64-bit CPU, there is no such limitation. | |
| BIOS | 256Mb AMI UEFI Legal BIOS with GUI support |
| Supports "Plug and Play" | |
| ACPI 5.1 compliance wake up events | |
| Supports jumperfree | |
| SMBIOS 2.3 support | |
| CPU, CPU VDDCR_SOC, DRAM, VPPM, 1.8VSB, VDDP Voltage Multi-adjustment | |
| Graphics | Integrated AMD Radeon Vega Series Graphics in Ryzen Series APU* |
| DirectX 12, Pixel Shader 5.0 | |
| Shared memory default 2GB. Max Shared memory supports up to 16GB.** | |
| Dual graphics output: support HDMI and DisplayPort 1.4 ports by independent display controllers | |
| Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz | |
| Supports DisplayPort 1.4 Input with max. resolution up to 5K (5120x2880)@120Hz | |
| Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI 2.1 Port (Compliant HDMI monitor is required) | |
| Supports HDR (High Dynamic Range) with HDMI 2.1 | |
| Supports HDCP 2.3 with HDMI 2.1 and DisplayPort 1.4 Ports | |
| Supports 4K Ultra HD (UHD) playback with HDMI 2.1 and DisplayPort 1.4 Ports | |
| Supports Microsoft PlayReady | |
| *Actual support may vary by CPU | |
| **The Max shared memory 16GB requires 32GB system memory installed. | |
| Audio | 7.1 CH HD Audio (Realtek ALC887 Audio Codec) |
| Supports Surge Protection | |
| LAN | PCIE x1 Gigabit LAN 10/100/1000 Mb/s |
| Realtek RTL8111H | |
| Supports Wake-On-LAN | |
| Supports Lightning/ESD Protection | |
| Supports Energy Efficient Ethernet 802.3az | |
| Supports PXE | |
| Wireless LAN | Intel 802.11ac WiFi Module |
| Supports IEEE 802.11a/b/g/n/ac | |
| Supports Dual-Band (2.4/5 GHz) | |
| Supports high speed wireless connections up to 433Mbps | |
| Supports Bluetooth 4.2 High speed class II | |
| Slots | AMD Ryzen series CPUs (Matisse) |
| - 1x PCI Express 4.0 x16 Slot (PCIE1: x16 mode)* | |
| AMD Ryzen series APUs (Renoir) | |
| - 1x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)* | |
| - 1x Vertical M.2 Socket (Key E) with the bundled WiFi-802.11ac module (on the rear I/O) | |
| *Supports PCIe riser cards to extend x8/x8 slots | |
| Supports NVMe SSD as boot disks | |
| Storage | 4x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug |
| 1x Hyper M.2 Socket (M2_1), supports M Key type 2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen4x4 (64 Gb/s) (with Matisse) or Gen3x4 (32 Gb/s) (with Renoir)** | |
| *Supports NVMe SSD as boot disks | |
| Supports ASRock U.2 Kit | |
| Connector | 1x RGB LED Header* |
| 1x Addressable LED Header** | |
| 1x CPU Fan Connector (4-pin)*** | |
| 2x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)**** | |
| 1x 24 pin ATX Power Connector | |
| 1x 8 pin 12V Power Connector | |
| 1x Front Panel Audio Connector | |
| 1x USB 2.0 Header (Supports 2 USB 2.0 ports) (Supports ESD Protection) | |
| 1x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports) (Supports ESD Protection) | |
| *Supports in total up to 12V/3A, 36W LED Strip | |
| **Supports in total up to 5V/3A, 15W LED Strip | |
| ***The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power. | |
| ****The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power. | |
| CHA_FAN1/WP and CHA_FAN2/WP can auto detect if 3-pin or 4-pin fan is in use. | |
| Rear Panel I/O | 2x Antenna Ports |
| 1x PS/2 Mouse/Keyboard Port | |
| 1x HDMI Port | |
| 1x DisplayPort 1.4 | |
| 2x USB 2.0 Ports (Supports ESD Protection) | |
| 3x USB 3.2 Gen1 Type-A Ports (Supports ESD Protection) | |
| 1x USB 3.2 Gen1 Type-C Port (Supports ESD Protection) | |
| 1x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED) | |
| HD Audio Jacks: Line in / Front Speaker / Microphone | |
| Software | ASRock Motherboard Utility (A-Tuning) |
| ASRock Polychrome SYNC | |
| ASRock XFast LAN | |
| UEFI | ASRock Full HD UEFI |
| ASRock Instant Flash | |
| *These utilities can be downloaded from ASRock Live Update & APP Shop. | |
| Support CD | Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar |
| Accessories | Quick Installation Guide, Support CD, I/O Shield |
| 2x SATA Data Cables | |
| 2x ASRock WiFi 2.4/5 GHz Antennas | |
| Hardware Monitor | Temperature Sensing: CPU, Chassis/Water Pump Fans |
| Fan Tachometer: CPU, Chassis/Water Pump Fans | |
| Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, Chassis/Water Pump Fans | |
| Fan Multi-Speed Control: CPU, Chassis/Water Pump Fans | |
| Voltage monitoring: 12V, 5V, 3.3V, CPU Vcore | |
| Form Factor | Mini-ITX Form Factor: 6.7-in x 6.7-in, 17.0 cm x 17.0 cm |
| Solid Capacitor design | |
| OS | Microsoft Windows 10 64-bit |
| Certifications | FCC, CE |
| ErP/EuP ready (ErP/EuP ready power supply is required) | |
| Warranty Information | |
| Warranty | 3 Year Warranty |
| Manufacturer's Site | Visit the manufacturer's website |
|---|---|
| Product Link | Visit the manufacturer's page for this product |
- 5600X Works, no BIOS update - Tiisetso, 20 December 2021
Titles says it all, I was unsure whether the 5600X would work without a BIOS update, it worked.
MY 1st ITX build, this was an affordable choice with Bluetooth, did not regret buying it. If you don't need any X570 features, I would recommend this mobo. - Solid entry level B550 - Travers, 7 May 2021
Paired this with a Ryzen 3 Pro 4350G, TeamGroup T-Force Dark Zα 16 GB 3600mhz ram, and a Mushkin Helix-L 250GBNV Me for an ITX build in and air-cooled Inwin B1 chassis that serves as a media center PC. All those components were entry-level so I was surprised at both the performance and the Hassel free build experience. The motherboard is solid and overclocks well with VRM temps staying respectable. XPM works out of the box with that RAM and I had none of the issues I experienced with XMP on my far more expensive gaming rig (Gigabyte B550/G.SKILL Trident Z Neo). Overall a solid board for latest-gen AMD CPU's.
- Very Basic - Vincent, 15 March 2021
Had many issues with the board's power management. Not suitable for over clocking or higher memory speeds.
I paired it with a Ryzen 5800X (bios needs to be P1.10 or newer) and GSkill DDR4-3600 (CL16-19-19-39).
Had to reset the cmos to get the system to boot. disconnect the battery and mains power for a few minutes if you need to reset the cmos - a jumper is not included for cmos reset.
Tried 3 different memory kits (Gskill & Corsair) - nothing could get past 3200 mhz. Enabling XMP or going past 3200mhz will cause post failure.
Overclocking the CPU in any way caused post to fail. My cpu was water cooled with temps below 67c.
If you are overclocking, using high speed RAM or gaming - I would recommend spending a bit more and going with Asus.
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