Now that Grace has a Sumicom S600, I can finally get my DFI 855GME to be a home theater PC. The main missing step is connecting my *old* HDTV monitor that only accepts component input. Fortunately, the HTI and NVIDIA Video Card Buyer’s Guide summarize very well what I need. That is essentially my 6800GT (!!!) won’t work, but the later but less powerful 6600GT will or I can use my older ATI 9800 Pro with a $24 connector.
bq. If you are going to use an ATI component adapter you need a Radeon 8500 or a Radeon 9500 or higher (this includes the 9550, which is really a 9600 GPU clocked lower), this also includes the x300 and x600 series for PCI Express. For the 8500 or 9600 All-in-Wonder cards you need the VGA to Component adapter, for all others ATI requires the DVI to Component adapter. For quick guide on using the ATI adapter see this guide.
bq. The All-in-Wonder 9700 series, 9800 series and the newest generation of ATI cards (x700 and x800) have a multipurpose DIN connector that can carry s-video or component via a breakout cable, so the aftermarket adapter is not needed. Be aware that not all manufacturers choose to enable the component output, the DIN may be s-video only.
bq. NVIDIA is now shipping cards with native component output. The most common cards are GeForce 6600 or 6600GT based cards. They have a multipurpose DIN connector that can carry s-video or component video via a dongle. Be aware that not all manufacturers choose to enable the component output, the DIN may be s-video only. XFX 6600GT and all ASUS cards are known to NOT have the component output. Some models by AOpen, Chaintech, Gigabyte, and Jaton may also not include the output adapter. So please double check!