Built a comp for my son 2 years ago and have gone thru 2 Vertgo video cards and got a virus from gaming site that caused lots of problems. Reloaded WinXP twice, but problems got worse, even stopped me from low level format of HDD. Decided to start over again and purchased the following: ASUS A7N8X-E MOB, ATI-9600 128T video card, AMD Athlon XP 2400+
Also have 2 PC266U-25330 256MB memory boards (256MB Nanya 184-pin PC2100 DDR266 SDRAM DIMM CT3264Z265, KVR266X64C25/256), 56X cd, floppy, Maxpower Ver 2.03 pwr supply.
Monitor display shows no signal. I have checked all cables, cleared CMOS by moving jumper and removing battery. CPU clock speed is set to default (400/333/266MHz FSB). Made HDD secondary to CD, put ASUS disk in CD, lights show all items working, but no video.