H8QGi+-F

Several variants of the H8QGi motherboard are highly supported by coreboot-15h, namely the H8QGi+-F and H8QG6+-F. The H8QGi motherboards have 4 G34 sockets, each with 8 DIMM slots; supporting a maximum configuration of 64 cores and 1 TB of RAM. LRDIMM modules may bring the maximum memory up to 2 TB, but LRDIMM support has not been tested.

Board Variants

H8QGi+-F

The H8QGi+-F is the base model of the H8QGi series, all other variants have additional features. Compatibility of the onboard BMC with coreboot has not been tested; it can be disabled via the "JPB1" motherboard jumper.

Release	Notes	Download Options
2025.03.08-v4.11-9f78cb25cd	Updated config Onboard VGA is no longer primary by default	SeaBIOS + uCode + VGA-OpROMs 2MB
2025.02.25-v4.11-97011b87c1	Initial v4.11 AGESA release Microcode Updated Added fan control Various AGESA bugs fixed	SeaBIOS + uCode + VGA-OpROMs 2MB

H8QG6+-F

The H8QG6+-F has an onboard SAS controller; it can be flashed to IT mode.

Release	Notes	Download Options
2025.03.08-v4.11-9f78cb25cd	Updated config Onboard VGA is no longer primary by default	SeaBIOS + uCode + VGA-OpROMs 2MB
2025.02.25-v4.11-97011b87c1	Initial v4.11 AGESA release Microcode Updated Added fan control Enabled onboard SAS controller Various AGESA bugs fixed	SeaBIOS + uCode + VGA-OpROMs 2MB

H8QGi+-LN4F

The H8QGi+-LN4F has four onboard LAN ports. It is likely compatible with the coreboot image for H8QGi+-F, but this has not been tested.

H8QG7+-LN4F

The H8QG7+-LN4F has an onboard SAS controller and four onboard LAN ports. It is likely compatible with the coreboot image for H8QG6+-F, but this has not been tested.

H8QGi-F

The H8QGi-F is a H8QGi+-F with a secondary northbridge and additional PCIe lanes. The coreboot image for the H8QGi+-F can be used, but the secondary northbridge and associated PCIe lanes will be offline.

H8QG6-F

The H8QG6-F is a H8QG6+-F with a secondary northbridge and additional PCIe lanes. The coreboot image for the H8QG6+-F can be used, but the secondary northbridge and associated PCIe lanes will be offline.

H8QGi-LN4F

The H8QGi-LN4F is a H8QGi+-LN4F with a secondary northbridge and additional PCIe lanes. It is likely compatible with the coreboot image for H8QGi+-F, but this has not been tested; the secondary northbridge and associated PCIe lanes will be offline.

H8QG7-LN4F

The H8QG7-LN4F is a H8QG7+-LN4F with a secondary northbridge and additional PCIe lanes. It is likely compatible with the coreboot image for H8QG6+-F, but this has not been tested; the secondary northbridge and associated PCIe lanes will be offline.

Onboard BMC

The Nuvoton WPCM450, or simply the WPCM450, is a BMC chip used in the SuperMicro family of boards containing the "-F" suffix. Multiple vendors shipped the WPCM450 with Linux, making it feasible to build an open source replacement for the original BMC firmware. 3rd party documentation and tools have been developed by neuschaefer and are available on github.

Flashing Firmware

To switch from the stock firmware to coreboot, external flashing is required.

Board Diagrams

User Builds

• RAD02