Originally posted by: Nuker43
Hello!!
I read through most of this thread and i didn't see a problem regarding to my problem. I will post a story of what happened to me.
If it was already addressed please point me to the page and i will read it... heres what happened:
Ok heres the whole story.
I mounted the mother board to a Skyhawk Galaxy case. It has 6 brass mounts and 3 plastic mounts. I inserted 1024 mb of ram in the blue sloted RAM slots. I installed the cpu and the heatsink/prossessor.
I am getting a 500 watt power supply in the mail tomorrow so in the main time i used a 350watt to test it out.
I pluged in everything in the right spots... pluged in the front panel switches and leds.
When i went to power up for the first time (with just RAM, CPU, and MB installed) It powered up fine except that the monitor didn't register (btw i also had radeon 9700 pro in the agp slot for monitor) and it also did not beep at all. Furthermore, it turned off by itself just under a minute of it being on.
I tried to power up again and this time it only turned on for a second. Giving power to everything and then turning off.... the cpu fan spun a couple times and turned off.
So i figure either something blew up or the power supply (350watt) can not support the radeonn , the cpu, 4 fans, and a light.
This was yesterday and i ended it at that and went to sleep.
Today i tried it again after clearing the bios and reseting the ram and agp card to make sure that wasn'[t the problem. Well this time i boot up and it does the same thing.... powers up for a minute then turns off.
I unpluged the fans and the light to try again... this time it powers up for a second but i hear a short in the power supply. I imediatly take it out and put back into my main computer and it doesn't work.
Obviously the power supply went or was reduced in power.
I unpluged the cd rom and it worked (this computer is a 1.9 ghz with the same radeonn and the mb is intel)
Well i still have the same problem with the 3ghz and asus board... what could it be?
Why does it only boot up for a couple seconds then turns off?
Why is there no beeps?
Any ideas... i could really use it before i kill myself... thanks.
Looks like you have a short somewhere in your case. I learned a trick from thermaltake when I bought my new system with this board, and had the same symptoms as you. It worked great for a while, then one day, poof. No workie. If I tried to turn it on, the fans spun for a second, then turned off. This is a safety feature built into a lot of modern PSUs, where if it detects a short, it will not stay powered on more than about a second or two. I had thought my PSU died on me and was freaking out, but luckily it was fine.
So... there are two ways to track this down. Place a dummy load on your PSU while individually checking devices. To do this you need a paperclip or similar piece of metal, and stick it in the green wire and the farthest black (ground) about 3 wires away. THis will create the dummy load on the PSU. Make sure everything is unplugged from your PSU before doing this, then if you turn it on and the PSU stays on, you know the PSU is good. So with the dummy load, slowly plug in one device at a time, including fans one at a time until you plug one in and it causes your PSU to do what it was doing (turning off after a second). When that happens, that last device is your culprit.
This was what happened to me, I found out one of my case fans must have shorted out.. because as long as I unplugged the one case fan, the system booted fine. But if I plugged it in.. it wouldn't boot. So it is very possible you have a shorted fan or device, or possibly even your motherboard may be seated poorly on the mounting studs. So with a lot of trial and error, you should be able to figure it out. If you test all your devices and they look good, but when you boot up with the motherboard plugged in and it is still doing this, take the mobo completely out of the case and try booting with it not touching the metal of the case and just sitting on a table or something. That will determine whether or not the case is causing the short.