Shuttle XPC slim DH370 mini-PC Review: A Compact Digital Signage Powerhouse

HTPC Credentials - Display Outputs Capabilities

The XPC slim DH370 comes with 3 display outputs, and their characteristics are summarized in the table below. From a HTPC use-case perspective, the entries of interest include the ability to support UHD (3840 x 2160) or higher resolutions, along with HDR and HDCP 2.2. The latter enables the display output to be used for viewing protected content such as 4K Netflix streams and play back UltraHD Blu-rays.

The system allows all three display outputs to be simultaneously active at the maximum rated resolutions. To maintain uniformity, we tested all three outputs driving a 3840 x 2160 display at 59.94 Hz in 'extension' mode.

The system has no trouble running three 4Kp60 displays and doing casual browsing or animation displays on all three at the same time. We will be analyzing more interesting use-cases in a later section.

Supporting the display of high-resolution protected video content is a requirement for even a casual HTPC user. In addition, HTPC enthusiasts also want their systems to support refresh rates that either match or be an integral multiple of the frame rate of the video being displayed. Most displays / AVRs are able to transmit the supported refresh rates to the PC using the EDID metadata. In some cases, the desired refresh rate might be missing in the list of supported modes.

Custom Resolutions

Our evaluation of the Shuttle XPC slim DH370 as a HTPC was done using the native HDMI output connected to a TCL 55P607 4K HDR TV via a Denon AVR-X3400H AV receiver. We also performed additional testing after connecting one of the DisplayPort outputs to a LG 34WK95U 5K monitor.

Various display refresh rates ranging from 23.976 Hz to 59.94 Hz were tested. Of particular interest is the 23.976 Hz (23p) setting, which Intel used to have trouble with in the pre-Broadwell days.

The gallery below presents screenshots from the other refresh rates that were tested.

The system has no trouble maintaining a fairly accurate refresh rate throughout the duration of the video playback.

High Dynamic Range (HDR) Support

The ability of the system to support HDR output is brought out in the first line of the madVR OSD in the above pictures. The display / desktop was configured to be in HDR mode prior to the gathering of the above screenshots.

The ideal desktop experience needs a YCbCr 4:4:4 or RGB output in order to avoid chroma subsampling artifacts on text content in HDR mode. The Shuttle XPC slim DH370 has no issues with this aspect.

The CyberLink Ultra HD Blu-ray Advisor tool confirms that our setup (Shuttle XPC slim DH370 + Denon AVR-X3400H + TCL 55P607) supports HDCP 2.2 along with HDR. The PC also satisfies other requirements (such as SGX and appropriate Management Engine firmware) to enable playback of Ultra HD Blu-rays.

In fact, we were able to activate UHD Blu-ray playback on our standard HTPC setup, as well as the LG HDR 5K monitor driven using one of the DisplayPort outputs.