eletegroup k75sa
athlon xp2800 runing at 2.4
geforce mx440
2x 256 ddr 2700
300 watt psu

The problem is that the pc wont boot at all no screen beeps nothing. fans spin leds light up but no activity. I have tried a barebones boot but still the same also ive tried a different gfx card, ram and cpu also replaced the artic silver on the cpu to see if it was overheating with no difference. I also took the motherboard out of the case and tried it on a piece of cardboard with no joy. I have cleared the cmos and reflashed the bios still the same I was thinking it was the power supply or the mobo is there any way to test it ?

Hello shadowlord029,

Welcome tohttp://www.pcguide.com/ubb/pcgubb.gif Forums!

It sure sounds like you've gone through all the recommended procedures for troubleshooting...

The fact that the fans spin up appears to indicate the PSU is putting out...

If all your connections have been secure during testing you should have gotten some sound (beep) somewhere along the line from the MB...

I would suggest contacting your supplier with a rundown of all you've done and see what they say...you may need an RMA on the MB...

One last check might be worth making. If you have a meter, check that ALL the outputs from the PSU are working. The fans run from the 12V line, but the 5 or 3.3 V outputs may be faulty.

David

I have cleared the cmos and reflashed the bios

How did you manage to flash BIOS with no video and no beeps?...just wondering...

Are you sure you have the system bus speed set correctly or is the board supposed to autodetect it? Have you double checked the speaker connection to be sure it's oriented right, along with the other front panel connectors? Is the clear CMOS jumper in the "run" or "Normal" position? Have you tried a different power supply?

If possible try the questionable CPU in another known working motherboard. Then try all known working parts in the problem motherboard, including different power supply. Stay with bare-bones setup until you get video and/or a beep code. Motherboard, CPU, memory, keyboard, video card. Nothing else to add troubleshooting steps...Out of the case if possible.

One last possibility comes to mind...did you plug the video card into the AGP slot or unplug it with the power supply plugged in at any time? If so you could have fried the video card, which should, but won't always result in a beep code. Try a PCI video card.

The motherboard still has a low voltage charge going through parts of the circuitry when plugged in, the AGP slot is one of those places. I've fried 2 AGP cards that way. Plugging in PS/2 mouse or keyboard can do the same thing, sometimes damaging just the PS/2 port, sometimes turning the entire motherboard into an expensive paperweight.

Thanks for your help guys ill try what you suggested and let you know the outcome.

It started of just rebooting itself when playing games I flashed the bios when it was in this state. I have double-checked all connections and they seem to be ok although the fan on the gfx card seems to be running quite slow. But I have tried a different gfx card and it was the same. So I think it could be the AGP port or the PSU do you agree ?

Ah, rebooting....

Reboots are most often heat, RAM, or PSU related...

I got a new motherboard and psu I tried the old motherboard with the new psu with no difference, all the components checked out ok on the new board so I suppose it was a fault on the board.

It appears that you're up and running?? :)

If such is the case, thanks for letting us know what you found to be the solution...;)

Listen to see if your hard drive is spinning. If not, check it's power connections. If the connections are good then the hard drive is bad.

Gwen,

If the hard drive doesn't spin up, it may mean it is bad, but it could also be a bad cable, a bad motherboard, a bad power supply or even bad RAM. Also, it appears that the drives are working with the new mobo based on what shadowlord029 said....