ASUS A7N8X-E mobo turns on and turns off in a few seconds?!

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DaFOBulous1

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Oct 8, 2004
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Trying to build a system for my brother. I put the 3200+ Athlon XP CPU in and with the heatsink. It turns on for maybe a few seconds and then turns off.

People were saying heatsink but I have tried it on 2, one is the ALK-800A, then some CoolerMaster one. I have to admit the CoolerMaster was originally from my 2100+ setup but still, it's all copper.

I do notice when I remove the CPU, it stays turned on. I know pretty sure this CPU works as I tested like hours before I put it in my brothers. Cant do that now since it was a quite a drive back home from college.

Jumpers? Settings? Anything?
 

crjdriver

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Joined
Jan 2, 2001
Messages
40,799
Some things to check.

1 The hsf is installed correctly. If you install it backwards, the hsf will rest on a lip on the cpu socket. This will not allow heat transfer and the system will overheat in a matter of seconds.

2 The hsf is plugged in to the correct header on the board. If there is no fan signal, some boards will shutdown.

3 Have you tried for a post outside of the case? Your system may be grounding to the mounting.
 
Joined
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7,794
I was going to post pretty much what crjdriver said. I know you've tried two different heatsinks, but that behavior is suspicious for a heatsink that's not on right allowing for overheating and shutdown.

Edit: Just wanted to make sure that you are using a thermal pad or thermal grease. The retail AMD setup comes with a pad already on the heatsink. Probably you are doing this, but just wanted to make sure.
 

DaFOBulous1

Thread Starter
Joined
Oct 8, 2004
Messages
46
Thx guys!!!

Jeezzz.my first system I built myself was when I was in the 3rd grade. Even in college do I face the same problems such as what you guys suggested was right on.

:)
 
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