HP Compaq Pro 6300 Series
This page describes how to run coreboot on the HP Compaq Pro 6300 Series desktop.
These come in two versions: Microtower or Small Form Factor (SFF). They share the same mainboard (657239-001) and Maintenance and Service Guide (690362-003/c04034127). This port has been tested on a SFF unit.
Working
i3-3220 / e3-1225v2 CPUs
SeaBIOS (version rel-1.16.3-0-ga6ed6b70)
EDK2 (MrChromebox/2502)
Fedora-mate with Linux kernels 6.11.4, 6.13.6; KDE neon with Linux kernel 6.8.0 / 6.11.0
Mixed memory configurations from single 4GB to 24GB total with 1.35v & 1.5v modules
Integrated Ethernet
Serial port
PS/2 keyboard and mouse
Integrated graphics over DisplayPort and VGA port
libgfxinit textmode (SeaBIOS) / framebuffer (EDK2)
discrete GPU’s show boot screen using SeaBIOS / EDK2 (LOAD_OPTION_ROMS=TRUE)
All SATA ports
All USB2 & USB3 ports
PCI slot (Realtek RTL8169 GbE card)
PCIe 3.0 x16 using 2.0 8x 10Gb Intel X540-AT2 / 1.0 16x nVidia GeForce(6200 LE / GT640-2GD3)
PCIe 2.0 x1 using 2.0 1x 2.5Gb Realtek RTL8125
PCIe 2.0 x1 using 1.0 1x 1Gb Intel 82574L (SeaBIOS loads option rom)
Audio built-in speaker (plays music in OS compared to legacy bleep pc-speaker)
Front panel audio ports (front headphone port overrides built-in speaker; only microphone works with combo mic/headphone with TRRS plug)
Back panel audio ports
Sensors CPU and 4 DIMM jc42-i2c sensors
Booting USB / SATA(HDD/DVD)
LEDs HDD, Power(blinks on suspend)
Shutdown, Reboot, Suspend & Wake (USB keyboard & LAN)
Strip down Intel ME/TXE firmware and hide MEI device
Untested
Parallel port
Not working
Simultaneous use of discrete and integrated graphics
TODO
The following things are still missing from this coreboot port:
Extended HWM reporting
Advanced LED control
Advanced power configuration in S3
Flashing coreboot
Type |
Value |
---|---|
Socketed flash |
no |
Model |
MT25Q128A |
Size |
16 MiB |
In circuit flashing |
yes |
Package |
SOIC-16 |
Write protection |
Yes |
Dual BIOS feature |
No |
Internal flashing |
yes |
Internal programming
Internal flashing is possible. The SPI flash can be accessed using flashrom, but you have to short the FDO pins located near the rear USB3 ports on the motherboard using a jumper to temporarily disable write protections while on the stock firmware. Remove the jumper once coreboot is installed.
External programming
External programming with an SPI adapter and flashrom does work, but it powers the whole southbridge complex. You need to supply enough current through the programming adapter.
If you want to use a SOIC Pomona test clip, you have to cut the 2nd DRAM DIMM holder, as otherwise there’s not enough space near the flash.
Technology
Northbridge |
|
Southbridge |
bd82x6x (Q75) |
CPU |
model_206ax |
SuperIO |
Nuvoton NPCD379 |
EC |
|
Coprocessor |
Intel ME |