H8SCM
| H8SCM | |
|---|---|
 | |
| Overview | |
| Introduced | 2010 |
| Manufacturer | SuperMicro |
| Specifications | |
| Socket | 1x C32 |
| Northbridge | AMD SR5650 |
| Southbridge | AMD SP5100 |
| Super I/O | Winbond W83527HG |
| BMC | Nuvoton WPCM450 |
| BMC Flash Location | Onboard |
| Memory | 4 slots (2 channels) DDR3-1600 ECC RDIMM/UDIMM, up to 128GB |
| BIOS Flash | 2 MiB soldered SOIC-8 (W25Q16V) |
| Form Factor | u-ATX |
| Power Inputs | 1x 8-pin EPS |
| Expansion Slots |
|
| Onboard Peripherals | |
| Graphics Adapter | Matrox G200eW |
| Network Interface | 2x Intel 82574L Gigabit |
| Storage Controller | SP5100's SATA2 (3.0 Gbps) |
| USB Controller | SP5100's onboard USB 2.0 |
| Serial Interface | One external, one internal |
| Audio Interface | None |
The H8SCM motherboard is highly supported by coreboot-15h.
Board Variants
H8SCM
Release
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Notes
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Download Options
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| 2025.04.28-v4.11-34811b78c48 |
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| 2025.03.08-v4.11-9f78cb25cd |
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| 2025.02.23-v4.11-583f5e6a34 |
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H8SCM-F
The H8SCM-F is identical to the H8SCM, but has an onboard BMC. It is compatible with the coreboot image for the H8SCM, but it is not known whether the onboard BMC will operate. The "JPB1" motherboard jumper can be used to disable the onboard BMC, effectively turning the H8SCM-F into the H8SCM.
Flashing Firmware
To switch from the stock firmware to coreboot, external flashing is required.
Flash Chip Location
The flash chip is located above the circular CMOS battery slot.
Flash Chip Orientation
The circle marking the location of pin 1 is highlighted red in the above image. The circle is a subtle indentation on the chip that can be seen with the aid of a flashlight.
Flashing Example
A CH341a programmer can be used to flash coreboot onto the H8SCM.
Board Diagrams
Board Components
AMD SR5650
The AMD SR5650, previously known as RD870S, is a powerful system logic designed for the server/workstation platform. The SR5650 boasts 26 PCI Express® (PCIe®) lanes, with 22 lanes dedicated to external PCIe devices and 4 for the A-Link Express II interface to AMD's Southbridges like the SP5100 (formerly SB700S). The chipset is also equipped with the latest HyperTransportTM 3 and PCIe Gen 2 technologies, delivering exceptional performance in a compact 29mm x 29mm package.[1]
AMD SP5100
The AMD SP5100 is a versatile Southbridge designed to complement AMD's server Northbridges, integrating essential I/O, communication, and other features for advanced server platforms into a single device. [2]