I have a test PC with a Pentium 4 CPU 1.3GHz, Intel D850GB, Nvidia GeForce 2 card, Western Digital 30.7GB hard drive, Goldstar CD-ROM, 512MB RAM(4*128MB), 3Com 3C905TX network card, Dynex FDD and Windows XP Professional SP2. No picture is displaying on the screen even though the fan is working.
The motherboard has a LAN and Audio controller, LAN is disabled in the BIOS. My father said it is the Hard drive but I don't believe so. The BIOS boot-up screen has a System builder OEM logo on it and the Video card is from Dell. I got the CPU, motherboard, and NIC from eBay. FDD and RAM from Amazon.com. The NIC is from a garage sale. The rest I had from disassembled PCs.
Some picture displayed earlier. How can I fix it?