Hey there, Right, this problem has been bugging me now for about 4 days... I have just upgraded my graphics card form a GeForce2MX to a GeForce3 TI500 When i turned it on after placing the new card in the AGP slot, the system seemed to boot fine, but there was no display on the monitor... thinking that the new card was not working, i replaced it with my old geforce and had the same problem! I have tried two monitors (which i know work) and have the same problem still. I have tried two other AGP cards, and a PCI one and still can not get any display on the monitor. There are now BIOS beeps, but all the fans spin, and lights come and and the hard disc spins up aswell. I have tried clearing the CMOS, with no joy. I have also tried a different CPU in the motherboard and different ram and the same problem occurs time and time again! The only thing that i have not changed is the power supply, could this be the problem? Or have i blown the mobo? Here are my specs, for your reference: Gigabyte GA-7VTXe 256mb DDR Ram Geforce 3TI500 40 gig HD Athlon XP 1500+ 350w PSU Please help!! Cheers, Tom.

It could be your PSU. 350 watts seems adequate but they can fail. Can you swap your RAM?

Hey, Yes i have swaped the ram, and have the same problem!! Tom.

if the hardrive works and you here it spin it could be your motherboard that has blown it just happens some times. if you actually see the floppy drives seek on boot up and windows start well odviously it isnt the motherboard but from the sounds of it, it is the motherboard

clear the cmos. I hope you know how? with the power cable completely off, move the jumper (usually 2-3), reconnect the power supply, push the power button as if turning it back on. disconnect again. move jumper to original position, and reconnect the power, it will start unless you fried the mobo in the agp upgrade process.

Yes, I seem to have something close to that problem. 1st off there is this fully working computer. then one day it does not get passed the memory test of BIOS. Bring it in to shop and then there is no display at all. Do the ussual rip everything out, reset BIOS.. and so on. still nothing So I replace RAM, VGA, CPU and nothing. (NOTE: Noithing = all LED's HD spinning up, LED's on CDROM sticking and CDROM's will not open. I found that the only thing that fixed this problem was changing the PSU. I see a lot of peepz saying that it must be a dead mobo. Well not in many of the machines I have here. Must have about 12 dead PSU's. I seem to hear that many people who try everything but still cant display think that there mobo is dead. When in fact it is a part of the PSU that sends a certain voltage to the CPU or PCI slots fails. Causing no display and no beebs. I would recomend trying to replace PSU before mobo if you are having the problems posted here and above. and remember dont have to buy a new PSU to try one just borrow one of ya mate and if you blow that, then run for ya pennies. Also with the old PSU that would boot up but not display anything there seemed to be a problem when putting a NIC into anyone of the PCI slots it made the power LED on the fromt of the case go semi-on and then you could not boot the machine up at all but take the NIC out of the PCI the power light goes totally out (like it should be) and then the machine boots up, weird huh?