KCMA-D8
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.
Contents
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 |
