Board:asrock/939a785gmh
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Contents
Hardware details
Clock Chip
The clock chip is ICS 9LPRS485CGLF - Could be used for overclocking.
Sideport memory
It uses Elixir n2tu1g16dg-ac, DDR2 800 Mhz.
SuperIO
It uses Winbond W83627DHG. Its GPIOs are connected this way:
GP20 - sideport voltage 1 = 1.82V 0 = 1.92V
GPO40 | GPO41 | GPIO23 GPU voltage - 000 - 1.45V step 0.05 -- 111 - 1.10V
GPO35 - loadline control (0 enabled)
GPO44 | GPO45 | GPO46 - DDR memory voltage
Suspend LED is the power LED - register 0f3 in SIO. Low = on
PCIe x16
Reset signal is through GPIO - GPM8,GPM9, 0 asserts reset, 1 de-asserts reset.
Status
For the entries marked as WIP, please see below.
Device/functionality | Status | Comments | ||||||
---|---|---|---|---|---|---|---|---|
CPU | ||||||||
CPU works | OK | AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ | ||||||
L1 cache enabled | Unknown | |||||||
L2 cache enabled | Unknown | |||||||
L3 cache enabled | Unknown | |||||||
Multiple CPU support | N/A | |||||||
Multi-core support | OK | AMD Athlon(tm) 64 X2 Dual Core Processor 3800+: htop and /proc/cpuinfo | ||||||
Hardware virtualization | Unknown | |||||||
RAM | ||||||||
EDO | N/A | |||||||
SDRAM | N/A | |||||||
SO-DIMM | N/A | |||||||
DDR | WIP | |||||||
DDR2 | N/A | |||||||
DDR3 | N/A | |||||||
Dual channel support | OK | |||||||
ECC support | N/A | |||||||
On-board Hardware | ||||||||
On-board IDE 3.5" | OK | checked with a CD-ROM drive | ||||||
On-board IDE 2.5" | N/A | |||||||
On-board SATA | OK (check note) | |||||||
On-board SCSI | N/A | |||||||
On-board USB | OK | only checked two ports so far, for mouse and keyboard. | ||||||
On-board VGA | WIP | |||||||
On-board Ethernet | OK | |||||||
On-board Audio | WIP | Front works, Surround doesn't | ||||||
On-board Modem | N/A | |||||||
On-board FireWire | N/A | |||||||
On-board Smartcard reader | N/A | |||||||
On-board CompactFlash | N/A | |||||||
On-board PCMCIA | N/A | |||||||
On-board Wifi | N/A | |||||||
On-board Bluetooth | N/A | |||||||
On-board SD card reader | N/A | |||||||
Add-on slots/cards | ||||||||
ISA add-on cards | N/A | |||||||
Audio/Modem-Riser (AMR/CNR) cards | N/A | |||||||
PCI add-on cards | OK | |||||||
Mini-PCI add-on cards | N/A | |||||||
Mini-PCI-Express add-on cards | Unknown | |||||||
PCI-X add-on cards | N/A | |||||||
AGP graphics cards | N/A | |||||||
PCI Express x1 add-on cards | OK | |||||||
PCI Express x2 add-on cards | N/A | |||||||
PCI Express x4 add-on cards | N/A | |||||||
PCI Express x8 add-on cards | N/A | |||||||
PCI Express x16 add-on cards | OK | |||||||
PCI Express x32 add-on cards | N/A | |||||||
HTX add-on cards | N/A | |||||||
Legacy / Super I/O | ||||||||
Floppy | Unknown | |||||||
Serial port 1 (COM1) | Unknown | |||||||
Serial port 2 (COM2) | N/A | |||||||
Parallel port | Unknown | |||||||
PS/2 keyboard | Unknown | |||||||
PS/2 mouse | Unknown | |||||||
Game port | N/A | |||||||
Infrared | Unknown | |||||||
PC speaker | Unknown | |||||||
DiskOnChip | N/A | |||||||
Input | ||||||||
Trackpoint | N/A | |||||||
Touchpad | N/A | |||||||
Fn Hotkeys | N/A | |||||||
Fingerprint Reader | N/A | |||||||
Laptop | ||||||||
Docking VGA | N/A | |||||||
Docking LAN | N/A | |||||||
Docking USB | N/A | |||||||
Docking Audio | N/A | |||||||
Docking Displayport | N/A | |||||||
Thinklight | N/A | |||||||
Webcam | N/A | |||||||
Miscellaneous | ||||||||
Sensors / fan control | Unknown | |||||||
Hardware watchdog | Unknown | |||||||
SMBus | Unknown | |||||||
CAN bus | N/A | |||||||
CPU frequency scaling | Unknown | |||||||
Other powersaving features | Unknown | |||||||
ACPI | Unknown | |||||||
Reboot | OK | |||||||
Poweroff | OK | |||||||
Suspend | Unknown | |||||||
Nonstandard LEDs | N/A | |||||||
High precision event timers (HPET) | Unknown | |||||||
Random number generator (RNG) | N/A | |||||||
Wake on modem ring | Unknown | |||||||
Wake on LAN | Unknown | |||||||
Wake on keyboard | Unknown | |||||||
Wake on mouse | Unknown | |||||||
TPM | Unknown | |||||||
Flashrom | OK |
Known Issues
SATA
External and SATA port 4 is not detected. This is due to bug in Coreboot code with regards of Combined mode handling.
RAM
Ruik tests
- use 2x 512MB CAS 2.5 DDR400
- blue slots populated = dualchannel mode (works)
- all slots populated (with additional RAM) - strange UMA artefacts
- only channel0 populated (DDR1 and DDR3 slot, DDR1 is closest to CPU) - strange UMA artefacts
- single memory stick in DDR1 slot - works
Lennart tests
- blue slots populated - works
- all slots populated -- doesn't boot
- hangs on "Clearing initial memory region:"
- only channel0 populated - doesn't boot
- hangs on "Clearing initial memory region:"
- single DIMM in DDR1 - works.
Onboard VGA
- In regard to the vendor BIOS the output numbers were switched. DVI-0 (vendor BIOS) was named HDMI-0 using coreboot.
- Both VGA and DVI output worked.
PCI-E graphics adapter
- Should be now fixed - r6384
Keyboard in Grub
- The (USB) keyboard in Grub doesn't respond correctly. Every keypress triggers multiple actions.
Kernel
- Linux 2.6.35.2 wouldn't boot. It would start, then the screens were going blank and the machine hung.