My computer doesn't power up. There is power throught the motherboard as my speakers have power. There was power to my mouse but that seems to have gone now. Has been working fine to date but went to turn it on this morning and nothing happened. There have been no power outages or fluctuations. The computer was working last night. Recently been in for installation of graphics card.

What kind of device (make and model number) is your problem actually on?

If you saying "doesn't always boot", most common would be motherboard...
If your motherboard still beeps, then probably some other components has the problem like RAM, GPU card etc., depends on your motherboard.

Hope that give an idea...

Building a computer will require: a motherboard, a processor, memory, a video card or motherboard with onboard video, a sound card or motherboard with onboard sound, at least one hard drive, a CD or DVD drive, a case for the computer components, a power supply, fans to cool the computer, an operating system, a monitor, speakers, keyboard, mouse, 2-3 hours to assemble the computer.
You must ensure that all of the components are compatible with one another. After receiving the parts, lay everything out on a large, clean surface. Make sure you are grounded by touching a metal surface; this will prevent the transfer of static electricity to your computer components.
Typically, the steps to install the components are as follows: 1. mount the power supply in the case, 2. mount the motherboard 3. lock the processor in the socket on the motherboard 4. insert the memory sticks into the slots on the motherboard 5. mount the processor fan on the processor 6. insert the video card into the applicable slot on the motherboard 7. insert the hard drive into a hard drive bay in the case, 8. insert the CD drive into a CD drive bay, 9. mount any fans you have to the fan cutouts on the case 10. connect all applicable data cables to the CD and hard drives 11. connect all applicable power cables to the motherboard, video card, processor, hard drive, CD drive, and any other components. 12. connect the front panel USB, power, lights, and reset connectors to the motherboard 13. close the case 14. connect the power, monitor, speakers, keyboard, and mouse to the computer
Because this process is rather involved, I recommend following a guide such as this one: http://www.maximumpc.com/article/how-tos/how-_build_silent_gaming_pc
It details the process, includes pictures, and even provides a list of compatible parts.

Hi There,

Firstly, disconnect everthing from the Power supply EXCEPT the motherboard

1. Does the fan on the CPU spin when switching on?

Double check power switch connections to motherboard, sometimes if connected incorrectly, it may stop the board from powering up.

2. Attach the PC speaker to motherboard and remove RAM, REMEMBER to follow all antistatic rules when doing anything inside the computer.
Switch machine on and listen if it makes a sound. if it does then the motherboard is fine.

Have you recently fitted the board yourself?, if so make sure it is not earthing on to the casing.


Try these first and let me know how you go.


neil

Let's start with restart the computer. That usually gets everything glitchy to work again. If that doesn't help, hit me back and we'll dig deeper.

You are prolly correct. Try making sure you video cable isnt loose first then update windows to make sure you have the correct driver.If it doesn't work then buy a cheap card.

- unplug everything form the back of the computer: power cable, mouse, keyboard, monitor, network cable & speakers, printer, camera (all usb)
- hold down power button for 10 secs (power cycle)
- plug in power, keyboard, mouse, network & monitor.. BUT NOT printer yet
- it it turns on, you can reconnect all other devices
- if it doesnt turn on still, call manufacturer or bring it to repair shop.. possible motherboard problem

u can download them from www.creative.com or search in google for creative speakers. then click the first link and in that go to supprt and drivers , in that choose ur model.

1. first check the bios.
2. you can use serial mouse or keyboard change this parallel mouse and keyboard.

Hi,

On some motherboards you can turn off the USB power in standby mode in the BIOS settings. Some motherboards do not have this feature and you need to switch off the power at the socket.