Just Finished Building New Computer... And It Won't Work

[Raziel-Zero]

Hey,

I just finished installing a Q6600, Gigabyte P35-DS4 and 2 gb of DDR2 800 MHz Geil RAM in my system. I tried starting it up and it worked but without anything coming up on the monitor. I then realised I had forgotten to plug in the 4 pin ATX connector (not molex the square one) to the motherboard. Now that I have connected this the computer will begin to start but then turn off after about 5 seconds without anything coming up on screen at all. I think this may be because my power supply is unable to supply the power needed. it is a 550 Watt Antec True Power 2.0. I have no idea what to do.... PLEASE HELP!!!!

Thanks in advance,

 

[Poemaster]

What kind of graphics card etc. your PSU sounds fine, when you say 4 pin atx your refering to your CPU's 12v correct? if nothing is showing up on screen check your internal wiring

 

[Raziel-Zero]

I have a 7900 GTX. I doubt its the internal wiring as everything starts up minus any display on screen untill I plug in the 12V ATX connection. However I will take a look at it and make sure. Any other ideas?

 

[Sirius_GTO]

check to see if your heatsink is installed correctly. if it's not, your CPU might get too hot and it will shut down to prevent damage.

 

[Raziel-Zero]

I'll give it a go but the computer shuts down very very fast like after 5 seconds I don't think the CPU would have adequate time to heat up to a critical temperature...

 

[Raziel-Zero]

I just tried disconnecting the Hard Drive, CD Drive and left only 1 stick of RAM in the system and it worked. This is great but I have no idea what to do now....

 

[Grievearz]

Put everything back together, unplug the computer and hit the power button to clear any charge. Wait about 10 seconds, plug it in and wait 15-30 seconds and turn it back on. It worked for me when I was having a similar problem.

 

[Raziel-Zero]

Didn't work ><. I have connected everything except the second stick of RAM now and get to the windows installation (my keyboard and mouse aren't working I don't think). However, it turns off during windows installation at various points each time. ARGHH!!!!!

 

[Nick]

The mobo could be slightly ****ed, or its the PSU, hunt around ur house for one or buy a cheapo one, if the cheapo one works then replace your current one

 

[Vaanish]

Didn't work ><. I have connected everything except the second stick of RAM now and get to the windows installation (my keyboard and mouse aren't working I don't think). However, it turns off during windows installation at various points each time. ARGHH!!!!!

The only thing I can think:

If using a PS/2 Kb and mouse, use USB, and vice versa.