Q. -- What troubleshooting steps should I take to diagnose why I am not getting any video signal, even during Power Up Self Test (POST)?
My HTPC (home theater pesonal computer):
-- Video: ATI Radeon 9000 All In Wonder
-- M/B: Gigabyte 8IPE1000G
-- O/S: Windows XP Pro (not media center)
-- Sanyo HT30744 (hdtiv)
-- Powered up the htpc (using config which worked on last use); it sent no video to the TV (via DVI to HDMI cable), even during POST.
-- Disconnected from TV and connected a regular LCD computer monitor (using a DVI to VGA adapter), and powered up htpc, but still no video, even during POST.
-- Removed video card and replaced with another ATI Radeon 9000 All In Wonder while connected to LCD monitor. Still no video.
-- Pulled cmos battery and shorted cmos reset pins to wipe the cmos.
My HTPC has been an off-again-on-again project for me. Before today, I hadn't touched it since before my 1 year old was born (go figure). When I used it last, it worked. When I power it up now, the appropriate LEDs on the system case light up, fans spin, etc., but there are no other signs of life. There are NO BEEPS when it boots... or rather is supposed to be booting. (I can't recall whether this board beeps during POST, or on error during POST, but it seems like every other pc does. I have no other video cards handy to try. This motherboard only accepts AGP 4x and 8x cards. I'd hate to buy a new card just for testing.