To know all the symptoms that exist on your computer is to use our senses.
The symptoms are caused.:
1. when installing faulty memory, a good motherboard will give a warning sound signal installation guidelines that was not true. Check and insert it correctly
2. AGP VGA Card Installation or less tight fit or not. Motherboard back in good shape gives a warning signal sounds, check and insert it correctly
3. Disk Data cabling for the best or not just right and setting the position of master or slave hard drive that does not fit. Correct and check the jumper positions Disk for master / slave and check with autodect Disk in the BIOS.
4. Data Cabling Disk Drives that do not fit or reversed. please fix that re-
5. Installation of improper connector panel so that the indicator lights for Power On Disk and inactive.