Install Libreboot on Intel D945GCLF and/or D945GCLF2

*Specifications*
Manufacturer	Intel
Name	D945GCLF/D945GCLF2D
Released	2008
Chipset	Intel Calistoga 945GC
CPU	Intel Atom
Graphics	?
Display	None.
Memory	Up to 2GB
Architecture	x86_64
Original boot firmware	Intel BIOS
Intel ME/AMD PSP	Not present.
Flash chip	SOIC-8 512KiB

W+: Works without vendor firmware; 
N: Doesn't work; 
W*: Works with vendor firmware; 
U: Untested; 
P+: Partially works; 
P*: Partially works with vendor firmware

*Features*		Notes
Internal flashing with original boot firmware	N
Display	-
Audio	W+
RAM Init	W+
External output	W+
Display brightness	-

*Payloads supported*
GRUB	Doesn’t work
SeaBIOS	Works
SeaBIOS with GRUB	Doesn’t work

Open source BIOS/UEFI firmware

This document will teach you how to install Libreboot, on your Intel D945GCLF and/or D945GCLF2 desktop motherboard. Libreboot is a Free Software project that replaces proprietary BIOS/UEFI firmware.

If you just want flashing instructions, go to ../install/d945gclf.html

D945GCLF2D also reported working by a user.

Introduction

This board is a mini-itx desktop board for 2008. It uses an atom 230, which is a singe core CPU but it is hyperthreaded so it appears to have 2 thread to the OS. The flash chip is very small, 512KiB, so grub2 does not fit, which is why libreboot has to use seabios on this target. Full disk encryption like on other supported targets will not be possible, so plan accordingly.

This board has a 945gc chipset which is the desktop equivalent of 945gm which can be found in the Lenovo x60/t60 or macbook2,1. This chipset features an ICH7 southbridge. It has 1 DIMM slot that can accommodate up to 2G of DDR2 RAM.

Connectivity-wise it has 1 PCI slot, a 10/100 ethernet port, 4 usb slot and 4 usb ports, with one internal header and 2 SATA ports.

The D945GCLF2 is an upgraded version of this board. The differences are: 1 more USB header, 10/100/1000 ethernet and a dual core cpu (also hyperthreaded). Since the board is almost identical (and coreboot code seem to indicate that it works, since MAX_CPU=4 is set), it is believed that it should also work but this is untested.

Remarks about vendor bios:

Without coreboot/libreboot this board is completely useless, since the vendor bios is very bad. It cannot boot from any HDD whether it is connected to the SATA port or USB. With libreboot it works just fine.
The vendor bios write protects the flash so it requires external flashing to install libreboot on this device. Once libreboot is flashed there is no problem to update the firmware internally

Here is an image of the board:

Here is an image of the D945GCLF2 board:

And SPI SOIC8 flash chip

Flashing instructions

Refer to spi.html for how to re-flash externally.

Here is an image of the flash chip:

How to replace thermal paste and fan

This board comes with very crappy disposable loud fan, that one has no bearings, which can not be repaired or oiled properly, do not waste your time trying to fix it, just buy one chinese same size fan

Make sure that new one has same wiring

This is a new one, with bearing and maintenable

Now remove the both coolers rotating them a bit, slowly, then clean both silicons and both coolers (removing cmos battery first is recommended)

Put a little bit of non conductive thermal paste on both silicons (only cpu silicon iis shown on that image)

Before assembling new fan, some need new longer screws, make sure having these (on the left is original one, too short for new fan)

After that, assemble your new fan into CPU cooler

Finally assemle both coolers on both chips, do not forget put in the CPU fan connector back, and you are done.

Markdown file for this page: https://libreboot.org/docs/install/d945gclf.md

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