PC wont start

[tgroce32]

I just assembled my first computer and to say the least it wont power up. I am almost positive I put it together flawless, but when I hit the power button nothing happens. The only thing I could think of was that the x blade case comes with a 24 pin psu connecter and the motherboard has a 24 pin receiver, but I have been told that should not matter. I wondering maybe if it is a bad psu or something? If anyone has any suggestions on how to get my comp started up please offer your knowledge. Oh and I didnt blow anything out because I was careful with the anti static stuff. Thanks.

[sweeper2]

quick questions...hope you don't mind them:

1- is the black pwr button on the back flipped in the right direction ?
2- on the small pins on the MB, do you have the pwr switch wires connected correctly?
3- is the psu set to 115V ?

is the MB not touching anything (is it set on the brass standoffs) ?

[jrsweger]

Are you sure that the psu connector is 24 not 20? There has been alot of discussion on this in other threads on this subject. They may have been in Technical Support or Motherboard......

[RamonGTP]

the PSU would be fairly easy to test. Just remove the ATX connector and use a jumper wire (i usually use a paper clip) and jump the green wire on the connector to any one of the black ground wires. Turn it on and see if the fan spins. You can also add some devices to the 4pin molex connectors to give it some load.

Although its still possible that you may have a bad PSU if that works, its not likely. Other things to check would be to make sure the power switch on the back of the PSU is in the on position. Be sure that the wires from the front panel are all going to the correct places. Be sure that the fan for the HSF is plugged into the correct fan header. Many motherboards won't power up if they don't detect a fan on the CPU fan header.

If all those fail, you can try to disconnect the front USB ports. I've had one board that would not power up if the "shield" wire going to the front USBs was connected. I doubt thats your problem as i've build dozens and dozens of boxes and i've only had this problem with one model and thats the EPoX 8RDA+. Great boards though.

[tgroce32]

I got it now!! I had the heat sink fan routed through the thermal monitor and once I connected directly to the motherboard it fired up. So thanks alot I have succesly put my first comp together! I hope ill post if I have any other probs.