Suspected bad mobo

Cromewell

Cromewell

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Staff member
My GA-965P-S3 was delivered today, after hooking up all the power connections and what-not I tried to power my system on. It almost immediately powers off. I didn't think anything of it as it is normal.

However this repeats continously. I very much doubt the culprit is the E6400 I also installed today and my PSU is working. I thought it may be RAM but I believe that will give me a POST error.

Any suggestions before I RMA?
 
does the light on the motherboard stay on? so we know if the board is getting power or not...i had this problem once and it was simply the voltage on the power supplys et to 230V instead of 115V
 
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In their infinite wisdom they dodn't include an LED on the mobo. If I remove the RAM I get the memory error beep code I was expecting but the machine still power cycles. Replacikng the RAM there is no POST code and power cycling.

Everything but the CPU, RAM and mobo is known good. I don't believe it is the RAM because that wouldn't explain the power cycle I'm seeing nor the lack of fan header power.
 
:P I don't want to pay through the nose for an Asus board, especially when Gigabyte makes decent boards. Not to mention Asus and Gigabyte are merging and Asus is going to sell under the Gigabyte name.
 
Just out of curiosity, have you tried another PSU? Just because you hear the fan within it power up doesnt mean that it couldn't be faulty (i.e. the motherboard power connector could be damaged under the outside cabling protector that isn't visible to the human eye on first glance).
 
The PSU is fine, I had it powered up on another system sunday as well as yesterday. I can power it on via the paperclip system and wiring the fans into molexs has them all power on.

I removed the mobo, after checking the underside I'm sure it's the problem. There is some weird film on various parts of it as well as some black almost molasses looking stuff at one point. There also appears to be some manufaturing defects on the front end of the underside.
 
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