Here's an update of the hardware list. Eventually I'll separate the video cards between "Supported" (fully supported/hardware accelerated) and "Works" (builtin/vesa mode).
Amithlon Supported Hardware
Motherboards
Gigabyte GA-P35-DS3L MB - Socket LGA775 (3 PCI slots)
Chipset - Northbridge: Intel® P35 Express - Southbridge: Intel ICH9
IDE (kernel 3.10 and 4)
SATA (kernel 4)
USB
Asus A8N-E MB - Socket 939 (3 PCI slots)
Chipset - NVIDIA nForce4 Ultra
IDE (kernel 3.10 and 4)
USB
NIC - 10/100/1000
GA-MA790FXT-UD5P MB - Socket AM3 (2 PCI slots)
Chipset - North Bridge: AMD 790FX - South Bridge: AMD SB750
IDE (kernel 3.10 and 4)
SATA (kernel 3.10 and 4)
USB
Gigabyte GA-M52L-S3P MB - Socket AM2 (4 PCI slots)
Chipset - NVIDIA nForce 520LE
IDE
Asus K7V MB - Slot A (5 PCI slots, 1 AGP)
Chipset - VIA Apollo KX133
IDE (kernel 3.10 and 4)
USB
MSI k8t neo2 v2.0 MB - Socket 939 (1 AGP, 5 PCI slots)
Chipset - VIA K8T800 Pro - South Bridge VIA VT8237
USB (kernel 3.10)
AC97 Sound (kernel 3.10)
Shuttle AK32 MB - Socket A (1 AGP, 5 PCI slots)
Chipset - VIA KT266A
USB (kernel 3.10)
AC97 Sound (kernel 3.10)
Abit AN7 MB - Socket 462 (1 AGP, 5 PCI slots)
Chipset - NVIDIA nForce2 Ultra 400 - South Bridge NVIDIA nForce2 MCP-T
USB (kernel 3.10)
Gigabyte GA-K8NF-9 MB - Socket 939 (3 PCI slots)
Chipset - NVidia nForce4
USB (kernel 3.10)
Video Cards
Nvidia GeForce FX 5500 PCI 256 MB (hardware accelerated)
Nvidia GeForce FX 5200 PCI 256 MB (hardware accelerated)
Nvidia GeForce 4200Ti AGP (hardware accelerated)
Nvidia GeForce 4 Ti AGP (hardware accelerated)
Nvidia GeForce PCX5750 PCIe 256 MB (builtin/vesa mode)
Nvidia GeForce GS7800 PCIe (builtin/vesa mode)
Network Cards
Realtek RTL8139D 10/100 Mbps PCI Fast Ethernet Adapter (OpenPCI driver)
IBM ThinkPad T30 802.11b Intel M3AWEB56GA 91P7215 26P8520 Mini-PCI (laptop) (Prism2v2 driver)
Sound Cards
Soundblaster Live PCI
Soundblaster 128 PCI
Systems - Desktop/Tower
Dell Dimension B110
Onboard USB (kernel 3.10)
Onboard AC97 Audio (kernel 3.10)
Systems - Laptop
Dell Latitude C610 (kernel 3.10)
Onboard AC97 Audio
Onboard USB
Onboard IDE
Onboard NIC
Onboard Video (vesa)
Mini-PCI slot
Dell Inspiron 5150 (kernel 3.10)
Onboard AC97 Audio
Onboard USB
Onboard IDE
Onboard NIC
Onboard Video (vesa) (Radeon 9000 or Nvidia FXgo5200)
Mini-PCI slot
Misc Hardware
Linksys USB200M - USB to ethernet adapter with Poseidon/ArakAttack and usbasixeth.device driver