I recently used this checklist below to troubleshoot a power up computer problem. Maybe the list will help you:
A. Check the Power Light on the Computer The power button light is located on the front of the computer case (not the monitor). Below are brief descriptions of the power light indications. Solid green indicates the computer is powered on and in good condition. Blinking green indicates that it may be in Sleep, Standby or Hibernate mode. If the power button is amber or flashing amber, the computer may have a more complicated power condition. B. Swap Power Cords With the Monitor, if Possible 1. Unplug the power cable from the back of the computer. 2. Push the power button for 10 seconds to discharge power. 3. Disconnect the power cable from the back of the monitor. 4. Plug the power cable from the monitor into the back of the computer. 5. Attempt to turn the computer on. If this does not work, swap the cables back to their original positions. C. Remove All External Components Except Power 1. Disconnect the power cable from the back of the computer, then press and hold the power button for 10 seconds to discharge any residual power. 2. Disconnect everything from the front and back of the computer. Note: This includes, but is not limited to, the keyboard, mouse, monitor, speakers, printers, scanners, USB devices, PDAs/handhelds (such as Palm Pilots), external storage drives (such as Zip drives), and joysticks/game pads. 3. Reconnect the power cord, bypassing any surge protector, battery pack, or UPS (universal power supply), and plugging directly into a known-good wall outlet. 4. Press the power button and check to see if the computer turns on. D. Swap with a Known-Good Power Supply Swap the power supply with a known-good power supply, if available. E. Reseat the Power Connections, I/O Panel or Control Panel Connections 1. Disconnect the external power cord from the back of the computer. 2. Push and hold the power button for 5 seconds to discharge power. 3. Open the computer cover. For more information on removing, replacing, or reseating parts, refer to the Online User's Guides. 4. Firmly press the I/O Panel connector from the I/O panel on the front of the computer case (chassis) to the motherboard, or the control panel switch. Notice: Do not pull on the cable when trying to remove the I/O panel connector, as this could cause the connector on the cable to break. Also be sure to pull up perpendicular to the connection, as pulling sideways could also cause damage. 5. Reseat the power connectors from the power supply to the motherboard. Ensure that the processor power cable is also reseated. The power requirements of the Pentium« 4 processor includes the addition of an extra 12v power supply to the motherboard. This connection is a four pin/wire cable that plugs directly into a keyed connection on the motherboard. 6. Reconnect the external power cord. 7. Close the computer cover. 8. Power the computer on. Many times when a computer will not power on either the power supply is bad or it is the motherboard. When you have the inside of the case open, check for swollen capacitors on the motherboard. On Aug 26, 7:18 pm, Jeada Melivan <[email protected]> wrote: > Remove each component. Completely disassemble your tower and carefully > put it back together. > Have the motherboard completely bare and check everything. Look for > broken wires. > Sometimes the problem can be as simple as a loose connection. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Computer Tech Support" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/computer-tech-support?hl=en -~----------~----~----~----~------~----~------~--~---
