Kernel.org: 3.3.7, 
sid (unstable): 3.2.18-1
wheezy (testing): 3.2.17-1
kmuto bpo d-i: 
squeeze-bpo: 3.2.15-1~bpo60+1
squeeze (stable): 2.6.32-45
lenny (oldstable): 

Debian GNU/Linux device driver check & report

Asrock: NF4-DVI

PCI IDWorks?VendorDeviceDriverKernel
10de02f1nVidia CorporationC51 Host Bridge
10de02fanVidia CorporationC51 Memory Controller 0
10de02fenVidia CorporationC51 Memory Controller 1
10de02f8nVidia CorporationC51 Memory Controller 5
10de02f9nVidia CorporationC51 Memory Controller 4
10de02ffnVidia CorporationC51 Host Bridge
10de027fnVidia CorporationC51 Memory Controller 3
10de027enVidia CorporationC51 Memory Controller 2
10de02fdnVidia CorporationC51 PCI Express Bridge
10de02fbnVidia CorporationC51 PCI Express Bridge
10de0270nVidia CorporationMCP51 Host Bridge
10de0261nVidia CorporationMCP51 LPC Bridge
10de0264YesnVidia CorporationMCP51 SMBusi2c-nforce2v2.6.25-
10de026dnVidia CorporationMCP51 USB Controller
10de026enVidia CorporationMCP51 USB Controller
10de0265YesnVidia CorporationMCP51 IDEpata_amdv2.6.25-
10de0266YesnVidia CorporationMCP51 Serial ATA Controllersata_nvv2.6.25-
10de026fnVidia CorporationMCP51 PCI Bridge
10de026cYesnVidia CorporationMCP51 High Definition Audiosnd-hda-intel
10de0269YesnVidia CorporationMCP51 Ethernet Controllerforcedethv2.6.25-
10221100Advanced Micro Devices [AMD]K8 [Athlon64/Opteron] HyperTransport Technology Configuration
10221101Advanced Micro Devices [AMD]K8 [Athlon64/Opteron] Address Map
10221102Advanced Micro Devices [AMD]K8 [Athlon64/Opteron] DRAM Controller
10221103YesAdvanced Micro Devices [AMD]K8 [Athlon64/Opteron] Miscellaneous Controlk8tempv2.6.25-
10de0141YesnVidia CorporationNV43 [GeForce 6600]nv

Things which don't work (well):
The video card, GEforce 6600 GT, NV43, by default uses free nvidia 2D driver, which works OK, but at present there is no FOSS 3D support that really works.
If all 4 memory slots are occupied, 2 by 2 the mem kits refuse to work in dual channel.
On similar machines (only different CPU), k8temp reports non-real values,  for instance -49 C with BOX cooler.
HD audio is cracky when high volume is used.
AMI BIOS's ACPI does not work at all.
Generally not recommended.
 (2009-11-11 17:20:07)