Packaging and Overview
ASRock's box design is identical to that of their Fatal1ty Z270 motherboards; it's sleek and high quality. The motherboard is securely packaged in a foam tray inside an anti-static bag.
The accessory package includes four SATA 6Gb/s cables, IO shield, SLI_HB bridge, case badge, M.2 screws, post card, driver DVD, and manuals.
ASRock offers five fan headers on this motherboard. All headers can operate in PWM or DC mode, but only the single header circled in yellow auto detects PWM or DC fans. All headers but the one circled in green support 1.5A of current, while the CPU fan header (circled in green) supports 1A. The motherboard's color theme departs from the color neutral theme and offers a powerful red and black aesthetic. The VRM heat sinks are crimson red while the red of the red on the motherboard is painted on or part of the PCB silkscreen. The back of the motherboard has very few components, which is a good thing.
The rear IO panel features PS/2 keyboard, PS/2 mouse, WIFI antenna brackets, HDMI, six USB 3.0, USB 3.1 type-A, USB 3.1 type-C, Gbit LAN, and 7.1 gold plated audio outputs with S/PDIF digital.
The PCI-E layout is quite simple; there are two reinforced full sized x16 PCI-E 3.0 slots that operate at x16/x0 or x8/x8. The PCI-E x1 slots are PCI-E 2.0 and run off the PCH. Six SATA6Gb/s ports are also provided.
The topmost M.2 slot is wired x4 PCI-E 3.0 (32Gb/s), the bottom M.2 slot is wired x2 PCI-E 2.0 (10Gb/s).
Two USB 3.0 internal headers are located below the 24-pin power connector. A single USB 2.0 half header (supports one USB 2.0 port) and an RGB header are located below the two USB 3.0 internal headers. They are located here to support AIO coolers that use USB or AMD's new air coolers with RGB LEDs.
Two extra RGB LED headers are located at the bottom of the motherboard between front panel headers and a POST code display. The Clear CMOS jumper is located to the left of the POST code display. An M.2 WIFI slot is located below the VRM heat sink.
Two USB 2.0 headers are located near speaker, TPM, and COM headers. All the heat sinks and shields use screws, and the heat sinks make great contact with the components they cool down.
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- Page 1 [Introduction, Specifications, and Pricing]
- Page 2 [Packaging and Fatal1ty X370 Gaming K4 Overview]
- Page 3 [ASRock Fatal1ty X370 Gaming K4 Circuit Analysis]
- Page 4 [ASRock Fatal1ty X370 Gaming K4 Circuit Analysis Continued]
- Page 5 [BIOS and Software]
- Page 6 [Test System Setup]
- Page 7 [Overclocking]
- Page 8 [CPU, Memory, and System Benchmarks]
- Page 9 [System IO Benchmarks]
- Page 10 [Thermal Imaging and Power Consumption]
- Page 11 [What's Hot, What's Not & Final Thoughts]
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