KCMA-D8

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The KGPE-D16's ATX socket C32 little brother, what applies to it should apply to this too as the southbridge/northbridge and platform are pretty much the same.

It is useful for a router/firewall or secure applications device as it has an IOMMU and compatible low wattage CPU's such as the 35W Opteron EE series.

Fancontrol

For general info regarding fancontrol please see fancontrol.

Limited thermal management with coreboot and coreboot-based BIOS replacements on KCMA-D8

TL;DR: If you have two HSFs installed they will always have the same fan speed. We recommend using the thermal sensors of the CPU in the back because it will always be the warmest.

The thermal management hardware of the KCMA-D8 is somewhat unusual and limited. It supports both 4-pin and 3-pin fans, however even though it contains a PWM controller with 8 hardware channels ASUS has only wired up two PWM channels to the fan connectors. To make matters worse, PWM channel 1 is routed to all 4-pin fans while PWM channel 2 is routed to all 3-pin fans.

RAM HCL

Vikings is not testing against Libreboot because last release was on 7 Sept 2016. There has been a lot of progress on RAM initialization in upstream coreboot since then.


Tested working

The following RAM models and configurations have been tested and are know to work as of the stated version/Git revision.

Manufacturer Model Voltage Max tested RAM Size Speed Type ECC Populated Slots CPU Mainboard Type Firmware
Kingston KVR16E11/8 [1] (Discontinued) 1.5V 32GB 8GB DDR3-1600 Unbuffered Yes A2 / A1 / B2 / B1 1x 4284 KCMA-D8 Rev. 1.03, 1.02 coreboot-4.09, coreboot-4.11
Crucial CT102472BA160B.18FED 1.5V 8GB 8GB (not working with more than 1 module) DDR3-1600 Unbuffered Yes A1 1x 4284 KCMA-D8 Rev. 1.03, 1.02 coreboot-4.11
Crucial CT102464BD160B.C16FED [2] 1.35V 32GB 8GB DDR3-1600 Unbuffered No A1,A2,B2,B1 1x 4284 KCMA-D8 Rev. 1.02 coreboot-4.11
Transcend TS1GLK72V6H 1.5V 48GB 8GB DDR3-1600 Unbuffered Yes A2,A1,B2,B1;C2,C1 2x 4256EE KCMA-D8 Rev. 1.02 coreboot-4.11

Tested not working

Manufacturer Model Voltage RAM installed Size Speed Type ECC Populated Slots CPU Mainboard Type Firmware
Crucial CT102472BD160B.18FED [3] 1.35V 8GB 8GB DDR3-1600 Unbuffered Yes A2 1x 4284 KCMA-D8 Rev. 1.03, 1.02 coreboot-4.11
Kingston KVR16R11D4/16 1.5V 16GB 16GB DDR3-1600 Registered Yes A2 1x 4284 KCMA-D8 Rev. 1.02 coreboot-4.11
Hynix HMT31GR7BFR4C-H9 1.5V 8GB 8GB DDR3-1333 Registered Yes A2 1x 4284 KCMA-D8 Rev. 1.02 coreboot-4.11
Micron MT36KSF2g72PZ-1g6n1lf 1.5V 16GB 16GB DDR3-1600 Registered Yes A2 1x 4284 KCMA-D8 Rev. 1.03, 1.02 coreboot-4.11
Kingston KVR16R11D4/16HA 1.5V 16GB 16GB DDR3-1600 Registered Yes A2 1x 4284 KCMA-D8 Rev. 1.02 coreboot-4.11
Micron MT18KSF1G72AZ-1G6E1ZE 1.5V 8GB 8GB DDR3-1600 Unbuffered Yes A2 1x 4284 KCMA-D8 Rev. 1.02 coreboot-4.11