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Welcome to 15h.org, a resource for documentation and support for AMD's [[Family 15h]] (fam15h) and other related processors and platforms.
{{Excerpt|Showcase|hat=no|templates=Infobox, Excerpt}}


{| class="wikitable" style="width: 100%;"
Welcome to 15h.org, a resource for documentation and open source support for AMD's [[Family 15h]] (fam15h) and other related processors and platforms.
 
{| class="wikitable" style=""
| style="width: 33.33%"| {{center|'''🖥️ Get Started with Hardware'''}}
| style="width: 33.33%"| {{center|'''🖥️ Get Started with Hardware'''}}
| style="width: 33.33%"| {{center|'''⚙️ Build your Firmware'''}}
| style="width: 33.33%"| {{center|'''⚙️ Build your Firmware'''}}
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* [[Motherboards]]
* [[Motherboards]]
** [[ASUS KGPE-D16]]
** [[ASUS KCMA-D8]]
** [[Supermicro H8QG6]]
** [[Supermicro H8SGL]]
** [[Supermicro H8SCM]]
* [[Coolers|CPU Coolers]]
* [[Coolers|CPU Coolers]]
|
|
* [[coreboot-15h]]
* [[coreboot-15h]]
* [[OpenBMC]]
* [[AMD Documentation|AMD Developer Documentation]]
* [https://git.15h.org/explore/repos Browse our Git forge]
* [https://git.15h.org/explore/repos Browse our Git forge]
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|
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* [[Community Todo List]]
* [[Community Todo List]]
|} __NOTOC__
|} __NOTOC__
=== Check it out! ===
{{Excerpt|Showcase|hat=no}}


=== Why 15h? ===
=== Why 15h? ===
Released between 2011 and 2014, AMD's fam15h (and its approximately-contemporaneous relatives, [[fam10h]], [[fam14h]] and [[fam16h]]) are the final high-performance x86_64 microprocessors lacking most of the limitations newer x86 platforms are encumbered by. In many cases, fam15h hardware can provide a performant, full-featured system, using entirely free and open source software. It enforces no firmware signing (allowing things such as [[Coreboot]]), can be booted entirely with free firmware (including memory initialization), and it requires no privileged management coprocessor (such as the Platform Security Processor or Management Engine, found on newer AMD and Intel platforms respectively). Where a [[Board Management Controller]] is present, it can usually reliably disabled, or better yet, flashed with [[OpenBMC]]. On fam10h, even microcode is unencrypted and unsigned, and can be modified by the user.
Released between 2011 and 2014, AMD's [[fam15h]] (and its approximately-contemporaneous relatives, [[fam10h]], [[fam14h]] and [[fam16h]]) are the final high-performance x86_64 microprocessors lacking most of the limitations newer x86 platforms are encumbered by. In many cases, fam15h hardware can provide a performant, full-featured system, using entirely free and open source software. It enforces no firmware signing (allowing things such as [[coreboot]]), can be booted entirely with free firmware (including memory initialization), and it requires no privileged management coprocessor (such as the Platform Security Processor or Management Engine, found on newer AMD and Intel platforms respectively). Where a [[Board Management Controller]] is present, it can usually reliably disabled, or better yet, flashed with [[OpenBMC]]. On fam10h, even microcode is unencrypted and unsigned, and can be modified by the user.


Beyond their currently-unparalleled degree of firmware freedom for a modern x86_64 platform, AMD hardware of this era (in particular, 6200 and 6300-series [[Opteron]] platforms) remains a powerful and cost-effective option for many systems, especially under parallel workloads. Despite this, the comparative popularity of competing Intel processors during this era has limited the familiarity and uptake of these pre-Zen AMD platforms among many enthusiasts.
Beyond their currently-unparalleled degree of firmware freedom for a modern x86_64 platform, AMD hardware of this era (in particular, 6200 and 6300-series [[Opteron]] platforms) remains a powerful and cost-effective option for many systems, especially under parallel workloads. Despite this, the comparative popularity of competing Intel processors during this era has limited the familiarity and uptake of these pre-Zen AMD platforms among many enthusiasts.
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=== What hardware was that again? ===
=== What hardware was that again? ===
fam15h consists of the [[Bulldozer]], [[Piledriver]], [[Steamroller]], and [[Excavator]] microarchitectures (sold under the AMD FX and AMD Opteron CPU brands, and combined with graphics under the A4, A6, A8, A10, A12, FirePro, Sempron X2, Athlon X2, and Athlon X4 APU brands) while fam10h corresponds with the [[K10]] microarchitecture (sold under the Athlon X2, Athlon II, Sempron, Sempron X2, Phenom, Phenom II, Turion II, and Opteron CPU brands, and combined with graphics under the Sempron X2, Athlon II X2, Athlon II X4, E2, A4, A6, and A8 APU brands). The related Family 16h, corresponding with the [[Jaguar]] microarchitecture, was sold exclusively combined with graphics, under the Athlon, Sempron, E1, E2, A4, A6, and Opteron APU brands.
Robust support for coreboot on select fam15h motherboards has been developed and thoroughly tested at 15h.org. The current, production ready motherboards are [[KGPE-D16]], [[KCMA-D8]], [[H8QG6]], [[H8SGL]], and [[H8SCM]]. A handful of other fam15h motherboards have [[Motherboards|preliminary support]]. For these motherboards, the [[Bulldozer]] and [[Piledriver]] microarchitectures are supported by [[coreboot-15h]].
<!-- 
Benching this section for now. It is good information, but maybe a bit disorienting for someone looking for coreboot support.
 
More broadly, fam15h consists of the [[Bulldozer]], [[Piledriver]], [[Steamroller]], and [[Excavator]] microarchitectures (sold under the AMD FX and AMD Opteron CPU brands, and combined with graphics under the A4, A6, A8, A10, A12, FirePro, Sempron X2, Athlon X2, and Athlon X4 APU brands) while fam10h corresponds with the [[K10]] microarchitecture (sold under the Athlon X2, Athlon II, Sempron, Sempron X2, Phenom, Phenom II, Turion II, and Opteron CPU brands, and combined with graphics under the Sempron X2, Athlon II X2, Athlon II X4, E2, A4, A6, and A8 APU brands). The related Family 16h, corresponding with the [[Jaguar]] microarchitecture, was sold exclusively combined with graphics, under the Athlon, Sempron, E1, E2, A4, A6, and Opteron APU brands.


FOSS firmware development has to date focused primarily on platforms using Opteron processors of the K10, Bulldozer, and Piledriver microarchitectures (for example, the [[KGPE-D16]]), as well as APUs of the Piledriver (e.g. [[G505s]]), Steamroller (e.g. [[A88XM-E]]) and Jaguar (e.g. [[AM1I-A]], [[AM1ML]]) microarchitectures.
FOSS firmware development has to date focused primarily on platforms using Opteron processors of the K10, Bulldozer, and Piledriver microarchitectures (for example, the [[KGPE-D16]]), as well as APUs of the Piledriver (e.g. [[G505s]]), Steamroller (e.g. [[A88XM-E]]) and Jaguar (e.g. [[AM1I-A]], [[AM1ML]]) microarchitectures.
-->
== Stable Support in coreboot-15h ==
coreboot-15h ports for these boards work with a wide range of peripherals (in some cases supporting more hardware than their stock firmware), have reliable hardware-based fan control, and have been deployed successfully by 15h.org community members. Review the corresponding [[Motherboards|motherboard]] page for missing or untested features. For source, see [https://git.15h.org/mrothfuss/coreboot-15h our git forge].
{{Excerpt|Board Grid|Stable Support in coreboot-15h|only=templates|hat=no}}


== Releases ==
== Beta Support in coreboot-15h ==
{{Excerpt|Coreboot-15h|Releases|subsections=yes}}
coreboot-15h ports for these boards may be complete enough to be used in a production setting, depending on your needs. Review the corresponding [[Motherboards|motherboard]] page for missing features, known bugs, or untested features.
{{Excerpt|Board Grid|Beta Support in coreboot-15h|only=templates|hat=no}}

Latest revision as of 01:16, 14 March 2026

Showcase
The system below is a randomly-selected shared build from a user of 15h.org!
orion
An inside view of orion
Overview
Ownermrothfuss
Built2025
Hardware
MotherboardKGPE-D16
CPU2x Opteron 6386 SE
RAM512GB (16x Samsung M393B4G70BM0-YH9)
Storage Devices
  • 2x 80GB SATA SSD
  • 2x 3.2TB NVMe SSD
  • 4x 6TB SAS HDD
Storage ControllerBroadcom / LSI SAS2308 (IT-mode)
Power Supply1000W (EVGA 1000 GT)
ChassisCoolermaster HAF 932
CPU Cooler2x Noctua NH-U12DO A3
Software
Firmwarecoreboot-15h
Firmware PayloadSeaBIOS
Option ROMs Executed?None
Operating SystemRABID FreeBSD
FilesystemZFS
Primary WorkloadWorkstation

Welcome to 15h.org, a resource for documentation and open source support for AMD's Family 15h (fam15h) and other related processors and platforms.

🖥️ Get Started with Hardware
⚙️ Build your Firmware
👋 Join Us!

Why 15h?

Released between 2011 and 2014, AMD's fam15h (and its approximately-contemporaneous relatives, fam10h, fam14h and fam16h) are the final high-performance x86_64 microprocessors lacking most of the limitations newer x86 platforms are encumbered by. In many cases, fam15h hardware can provide a performant, full-featured system, using entirely free and open source software. It enforces no firmware signing (allowing things such as coreboot), can be booted entirely with free firmware (including memory initialization), and it requires no privileged management coprocessor (such as the Platform Security Processor or Management Engine, found on newer AMD and Intel platforms respectively). Where a Board Management Controller is present, it can usually reliably disabled, or better yet, flashed with OpenBMC. On fam10h, even microcode is unencrypted and unsigned, and can be modified by the user.

Beyond their currently-unparalleled degree of firmware freedom for a modern x86_64 platform, AMD hardware of this era (in particular, 6200 and 6300-series Opteron platforms) remains a powerful and cost-effective option for many systems, especially under parallel workloads. Despite this, the comparative popularity of competing Intel processors during this era has limited the familiarity and uptake of these pre-Zen AMD platforms among many enthusiasts.

If you are looking for an x86_64 platform under your complete control, this website serves to demystify fam15h and its relatives, so that these systems can remain in operation well into the future.

What hardware was that again?

Robust support for coreboot on select fam15h motherboards has been developed and thoroughly tested at 15h.org. The current, production ready motherboards are KGPE-D16, KCMA-D8, H8QG6, H8SGL, and H8SCM. A handful of other fam15h motherboards have preliminary support. For these motherboards, the Bulldozer and Piledriver microarchitectures are supported by coreboot-15h.

Stable Support in coreboot-15h

coreboot-15h ports for these boards work with a wide range of peripherals (in some cases supporting more hardware than their stock firmware), have reliable hardware-based fan control, and have been deployed successfully by 15h.org community members. Review the corresponding motherboard page for missing or untested features. For source, see our git forge.

KGPE-D16
2x G34 CPU Max 32 cores
SSI EEB Max 512GB ECC
Popular choice among 15h users. BMC supports blob-free VGA and OpenBMC. Versatile I/O.
Get coreboot-15h →Learn More →
KCMA-D8
2x C32 CPU Max 16 cores
SSI CEB Max 512GB ECC
Lower-power and more compact than KGPE-D16. BMC supports blob-free VGA and OpenBMC.
Get coreboot-15h →Learn More →
H8QG6
4x G34 CPU Max 64 cores
SWTX Max 1TB ECC
The largest and most-performant board supported in coreboot-15h.
Get coreboot-15h →Learn More →
H8SGL
1x G34 CPU Max 16 cores
ATX 12x8" Max 256GB ECC
ATX 12" x 8" form factor fits standard cases.
Get coreboot-15h →Learn More →
H8SCM
1x C32 CPU Max 8 cores
uATX 9.6x8.6" Max 256GB ECC
Smallest 15h Opteron board available.
Get coreboot-15h →Learn More →

Beta Support in coreboot-15h

coreboot-15h ports for these boards may be complete enough to be used in a production setting, depending on your needs. Review the corresponding motherboard page for missing features, known bugs, or untested features.

F2A85-M
FM2 CPU Max 4 cores
uATX 9.6x9.6" Max 32GB
Inexpensive and efficient, reasonable single-thread performance.
Get coreboot-15h →Learn More →
H8DG6
2x G34 CPU Max 32 cores
SSI EEB Max 512GB ECC
Alternative to KGPE-D16 - theoretically more PCIe lanes, but some slots and BMC currently unsupported.
Get coreboot-15h →Learn More →