From PPCNUX:
"A Non-Apple company uses this system architecture with PCI-Express for its new dual-G5 mainboard.
While the first product based on the IBM G5 Northbridge and NVIDIA Hypertransport Southbridge (originally meant for AMD64 CPUs) is an AdvancedTCA LINUXblade PPC20A, it could also be used for a most up to date desktop system since it implements all of today's neccessary and cutting edge features in just two chips:"
CPC925
* 2x Elastic Interface for dual PPC970FX
* 128Bit DDR400 memory interface
* AGP8X
* 16Bit Hypertransport
nForce4 (SLI)
* 16Bit 1000MHz Hypertransport interface
* 20 PCI-Express lanes, different configurations possible (e.g. 2 gfxcards)
* Standard 32Bit 33MHz PCI bus with up to 6 slots
* 10 USB 2.0 ports
* RAIDable storage controllers
o 2 channels of parallel ATA-133
o 4 ports of Serial ATA 3Gb/s
* AC'97 sound with up to 8 channels and dual S/PDIF output with AC3 or Stereo PCM up to 24Bit 96KHz
* Gigabit Ethernet with CPU offloading engine
http://www.ppcnux.de/modules.php?name=News&file=article&sid=4453