H8SCM: Difference between revisions

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{{Infobox motherboard
  |image = H8SCM Motherboard.png
  |image_size = 300
  |introduced = 2010
  |manufacturer = [[SuperMicro]]
  |socket = 1x [[C32]]
  |northbridge = AMD SR5650
  |southbridge = AMD SP5100
  |superio = Winbond W83527HG
  |bmc = [[Nuvoton WPCM450]]
  |bmcflash = Onboard
  |ram = 4 slots (2 channels) DDR3-1600 ECC RDIMM/UDIMM, up to 128GB
  |bios = 2 MiB soldered SOIC-8 (W25Q16V)
  |formfactor = u-ATX
  |power = 1x 8-pin EPS
 
  |slot1 = PCIe Gen2 x16 (electrically x8)
  |slot2 = PCIe Gen2 x8
  |slot3 = PCIe Gen2 x8 (electrically x4)
  |slot4 = 32-bit Legacy PCI
  |gpu = Matrox G200eW
  |nic = 2x Intel 82574L Gigabit
  |storagecontroller = SP5100's SATA2 (3.0 Gbps)
  |usbcontroller = SP5100's onboard USB 2.0
  |serial = One external, one internal
  |audio = None
}}
The H8SCM motherboard is highly supported by [[coreboot-15h]].
The H8SCM motherboard is highly supported by [[coreboot-15h]].


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{{Excerpt|Coreboot-15h|SuperMicro H8SCM|hat=no}}
{{Excerpt|Coreboot-15h|SuperMicro H8SCM|hat=no}}
=== H8SCM-F ===
=== 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" jumper can be used to disable the onboard BMC, effectively turning the H8SCM-F into the H8SCM.
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.


== Onboard BMC ==
== Onboard BMC ==
{{Excerpt|Nuvoton WPCM450|hat=no}}
{{Excerpt|Nuvoton WPCM450|hat=no}}


== Flashing firmware ==
== Flashing Firmware ==
 
To switch from the stock firmware to coreboot, [[External Flashing | external flashing]] is required.
To switch from the stock firmware to coreboot, [[External Flashing | external flashing]] is required.
=== Flash Chip Location ===
[[File:H8SCM Flashchip Location.png|frameless|300x300px]]
The flash chip is located above the circular CMOS battery slot.
=== Flash Chip Orientation ===
[[File:H8SCM Flashchip Orientation.png|frameless|300x300px]]
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 ===
[[File:H8SCM Flashing.png|frameless|300x300px]]
A CH341a programmer can be used to flash coreboot onto the H8SCM.


== Board Diagrams ==
== Board Diagrams ==
[[File:H8SCM Diagram.png|frameless|400x400px]]
[[File:H8SCM Diagram.png|frameless|400x400px]]
[[File:H8SCM BlockDiagram.png|frameless|400x400px]]
[[File:H8SCM BlockDiagram.png|frameless|400x400px]]
== User Builds ==
* [[Talos]]
* [[Komos]]


== References ==
== References ==

Latest revision as of 03:20, 7 March 2025

H8SCM
Overview
Introduced2010
ManufacturerSuperMicro
Specifications
Socket1x C32
NorthbridgeAMD SR5650
SouthbridgeAMD SP5100
Super I/OWinbond W83527HG
BMCNuvoton WPCM450
BMC Flash LocationOnboard
Memory4 slots (2 channels) DDR3-1600 ECC RDIMM/UDIMM, up to 128GB
BIOS Flash2 MiB soldered SOIC-8 (W25Q16V)
Form Factoru-ATX
Power Inputs1x 8-pin EPS
Expansion Slots
  • PCIe Gen2 x16 (electrically x8)
  • PCIe Gen2 x8
  • PCIe Gen2 x8 (electrically x4)
  • 32-bit Legacy PCI
Onboard Peripherals
Graphics AdapterMatrox G200eW
Network Interface2x Intel 82574L Gigabit
Storage ControllerSP5100's SATA2 (3.0 Gbps)
USB ControllerSP5100's onboard USB 2.0
Serial InterfaceOne external, one internal
Audio InterfaceNone

The H8SCM motherboard is highly supported by coreboot-15h.

Board Variants

H8SCM

Release
Notes
Download Options
2025.03.08-v4.11-9f78cb25cd
  • Updated config
    • Onboard VGA is no longer primary by default
  • SeaBIOS + uCode + VGA-OpROMs
2025.02.23-v4.11-583f5e6a34
  • Initial v4.11 AGESA release
    • Microcode Updated
    • Added fan control
    • Various AGESA bugs fixed
  • SeaBIOS + uCode + VGA-OpROMs

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.

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[1][2][3]. 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.

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

User Builds

References

  1. ↑ https://github.com/neuschaefer/linux/tree/vendor/wpcm450-aten
  2. ↑ https://github.com/neuschaefer/linux/tree/vendor/wpcm450-ami
  3. ↑ https://github.com/neuschaefer/linux/tree/vendor/dell-idrac6-1.70
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