Please somebody help!!

[Evo7]

I am using a 1.3TB on a Epox 8K7A+. When I pressed the on/off button, I can heard that the fans are moving. However, the motherboard is still FF and the screen is still black. Then I switch off my power supply and then repeat the above process a few times. Although the computer is switched on finally I want to know what's the problem as everytime I need to do this to switch on my computer. My friend thinks my power supply crashes with my motherboard. Will this be the problem?? The power supply is Enermax 330W

 

[Evo7]

Please help me

 

[rover825lover]

It could be that your powerswitch is broken, try switching on the computer using a screwdriver to shortcut the "power" pins on the motherboard.
(first take of the cable of the switch ofcourse).

If the computer works the first time, you know the problem!

Marco

 

[amndouglas]

If your fans are all turning then the power supply is on, and it is not the switch, since an atx switch is momentary on anyway. Your friend has a good point with the power supply. Also try looking for any loose connections on your board.

 

[rover825lover]

It's true that an atx switch is momentairy on, but i have had a few times that the switch is "bouncing" on/off leaving the case fans running, but the computer will never startup. It's easy to test and it will not cost you another power supply to begin with.

Marco

 

[Jiggz]

Try verifying if it's the PSU by removing everything except for the video card and a stick of ram. do not even connect the HDD's, floppy or CD-rom's. Basically, the only thing you should have is a mobo, video card, CPu + HSF and a ram. Power up, the system should at least post. If it post try it a few more times. If the problem goes away (intermittent on/off) it's the power supply. You can continue with your troubleshooting by adding the HDD first and then reboot and then the CD-Rom, Floppy, Soundcard, modem while rebooting at the same time on each addition of components. Find out where the system start to show it's problem again. If it only shows after adding all the components it most likely the PSU not having enough juice to power the system. Also, if you were able to power up the system with all the components replaced, check the +5.0V output of the PSU using the bios or a mobo monitor. It should not be less than 4.8V If it's below this or just close to this you definitely need to raise the +5.0V output. Some PSU's have this so check yours.

 

[samgau]

Sounds like a flacky power supply..... your best bet is to go through the standard tests as mentioned above and find the source of your problem...