need help on powering up a a7v133 mobo?

[mrbabs22]

i'am trying tobuild a new computer with amd 1.2 ghz chip and asus a7v133 mobo.i'am having a problem with the power(antec 300 watt supply).i plug in all the connections and it powers up the board for about 5 seconds and the power goes off....

is the power supply enough to power up the asus a7v133 mobo?
how can i get this to work?

 

[jamesbond007]

Does it beep at all? Do you have the CPU fan plugged in to the right header? I know some motherboards won't boot unless it's there to prevent the burnout of the core. If you're concerned about power, plug in only the video card, CPU, and RAM and see if you can get it to post. If not, try clearing the CMOS. There are two small solderings next to the battery on that motherboard. You have to connect them with a flat-head screwdriver to short them out in order to clear the CMOS correctly. Please consult your manual about other saftey precautions when performing this method.

Good luck!

 

[virusag13]

I have that board and that is the way you short the cmos, just use a screw driver, or I used a paper clip.

 

[sanz]

Its pretty hard to tell what's going on with your description. We need to know what you've done to help.

As jamesbond007 mentioned, A7V133 has auto protection which shuts down the computer if your CPU fan isn't connected to the correct header and it has saved my ass couple of times. This can also happen if you've connected the CPU fan directly to the PSU. Shutdown should happen with a long beep.

Do get back to us with better info so we can help (if you haven't figured it out yet that is).

Btw, 300W is more than enough. My home brand 300W supplies 1.4 tbird with 4 hdds.

 

[bchalker]

I had the exact thing happen to my board. It would beep once (long beep), powering the fans, and shut down. It happened after I fooled around with the bus speed, cranking it too high. I'm sure other things cause the same problem as well...

Anyway, I removed all cables, screws, etc., and pulled the board out. I then took a "corn skewer" (has two metal prongs - MUST be connected to each other. Like previously mentioned, a paper clip should work fine) and shorted the posts near the CMOS battery. I then removed the battery for 15 minutes.

Reassembled, and had no problem from then on out. I don't experiment like I'd like, but my system is stable.

Hope that helps.

 

[mrbabs22]

yes there is a long beep just before the system shuts down.i have the cpu fan on the heatsink plugged into 3-pin connector on the mobo that is marked cpu fan.there is also a cpu cooler fan attached to the mobo this fan is connected to the 3-pin marked f_fan.is this correct? i have not tryed anything else.

 

[chriskjel]

Your fans are hooked to the right connectors. I have the A7V133, that's the way my fans are hooked up and it runs fine.