The Gigabyte uses the APM X-gene1, which is an 8 core ARM processor. This is rather old now — I’ve had a Mustang at home with the same processor for a couple of years now and the chip design itself is 3+ years old. It uses Cortex A53 cores. Even APM have a newer X-gene 2. Nevertheless it has two very big advantages over the alternatives:
- You can actually buy it. I had this one shipped overnight from UK supplier Xcase.
- It’s (sort of — see below) server class hardware, unlike the very cheap but ultimately crap development boards based on phone chips.
A particularly annoying thing at the moment is that Gigabyte are claiming this board is SBSA compliant, but then they ship it with u-boot as firmware. However UEFI firmware can be downloaded, see this thread, so it should run RHEL.
Here are the boot messages to the u-boot prompt:
U-Boot 2013.04 (Jun 02 2015 - 10:54:10) REV: 1.15.01-F05 ( uart0 ) CPU0: APM ARM 64-bit Potenza Rev B0 2400MHz PCP 2400MHz 32 KB ICACHE, 32 KB DCACHE SOC 2000MHz IOBAXI 400MHz AXI 250MHz AHB 200MHz GFC 125MHz Boot from SPI-NOR Slimpro FW: Ver: 2.4 (build 01.15.01.00 2015/05/22) TPC: disabled AVS: supported (margin: -0mV) RST: supported PWROFF: supported PMD: 970 mV SOC: 950 mV Board: GIGABYTE MP30AR0 - AppliedMicro APM883408-xNA24SPT Customer Board I2C: ready DRAM: 32 GiB @ 1600MHz... SF: Detected MX25L25635F with page size 64 KiB, total 32 MiB MMC: X-Gene SD/SDIO/eMMC: 0 PCIE0: (RC) link down PCIE2: (RC) X1 GEN-1 link up PCIE3: (RC) link down 00:00.0 - 10e8:e004 - Bridge device 01:00.0 - 1a03:1150 - Bridge device 02:00.0 - 1a03:2000 - Display controller Video: ASPEED VGA Card (1a03, 2000) found @(2:0:0) Mode: 1024x768x32 48kHz 60Hz In: serial Out: vga Err: serial CPUs: 11111111 Net: eth0 USB0: scanning bus 0 for devices... XHCI: WARN: Didn't find a matching TT 3 USB Device(s) found USB1: scanning bus 1 for devices... 2 USB Device(s) found scanning usb for storage devices... 0 Storage Device(s) found XHCI: ep 0x1 - rounding interval to 128 microframes XHCI-ERR: xhci_submit_async_int ! Register 1 keyboards Hit any key to stop autoboot: 0