Computer Will Not Turn on

[mas6780]

I am rebuilding my little bro's computer and it decided that it does not want to turn on? I installed a new geforce 7800 gs video card two dvd drives and another hard drive. I made sure that one was a slave and one was a master. It is an older comp. it is a pentium 4 with a 300 or 350 ps, think its socket A, 1 gig of ram. I know the power is working because the motherboard has a light on it which lights up whenever i turn the ps on. I have tried to disconnect both the dvd drives and it still did not trun on???? I neeed some help!!!!!!

 

[Tmagic650]

Are the front case switches correctly placed on the motherboards front panel connector? Did the system power up before you applied the upgrades?

 

[mas6780]

Yes

The case switches are properly placed on the motherboard and yes it did power up before the upgrades.

 

[Tmagic650]

The power supply might not be strong enough to power the video card upgrade. Even though the system shows that it has power, the power supply can still cause this

 

[mas6780]

i will try a new PS

I will try this out and see if it fixes the problem. thanks for the help.

 

[Masque]

Also....

Is there a separate power receiver on the video card that needs to be plugged in? Many of the higher-power cards require their own power. Won't boot without it though it will usually give you a message on-screen stating the problem. At least I now ATI cards will do that.

 

[mas6780]

Well

The video card does need to be plugged in and yes i did plug it in in another comp and it worked. i do believe that i need a new ps.