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p8Z68-V Pro Reboot Problem/Dead

post #1 of 8
Thread Starter 
I've got a dead(?) motherboard now. I set the XMP profile and turned off HD Audio and Marvell in BIOS, when it saved and rebooted it was in a reboot loop (about 5 secs on then 5 secs off). I then cleared CMOS and now it will not boot at all. What can I do?
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BloodHammer
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post #2 of 8
Do you mean that it will not post? Or do you mean that it will not boot into windows?
post #3 of 8
Thread Starter 
It will not POST at all, the power never even comes on.
BloodHammer
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BloodHammer
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post #4 of 8
Please try to remove cmos battery, clear cmos for 15 minutes, then put battery and cmos jumper back and fire her up again.
    
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post #5 of 8
You really need to start pulling components and checking for bad ones. If I had to guess, its probably your power supply, if its not turning on at all (no fans or lights) then thats a good hint.
post #6 of 8
You should have left it in the the boot loop. I have the Asus P8Z68 my self and have had that happent to me many times while overclocking. As far as I can gather each time it reboots it downclocks its self slightly untill it reaches a stable point. Similar thing happens when running the auto overclock except it increases in small increments. I could be wrong but this is how it seemed to work for me.

Unfortunately I cannot help you with it not booting at all now. All I can maybe suggest is check you power supplies to the board. Maybe you unsettled one one of them slightly while moving the jumper switch.

To check if it is your PSU you could completely disconnect all the cable to all of you components and jump start it with a paper clip across the green wire and any black wire.

http://www.overclock.net/faqs/96712-how-jump-start-power-supply-psu.html

If it starts up then that will be one thing eliminated.

EDIT: I would try what Turrican9 said first.
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Tevatron K
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post #7 of 8
Best way to clear cmos correctly (won't need to remove battery except in MOST extreme cases) is this: and this has always worked for me:

1) UNPLUG or turn off the power supply. A lot of people forget this. If the PSU is not turned off, there is still +5v going to the board.

2) Push the case power button to discharge any leftover current.

3) wait 60 seconds.

4) Push case power button again if you want.

5) Short the clear cmos jumper with a jumper block or a flat head screwdriver, or press the clear cmos button if available, do it for 30 seconds.

6) Power everything back up aftewards.

If you're really in trouble, you can remove the battery and still do the above steps, but this is usually not necessary except in VERY extreme cases, if you follow the above instructions.
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post #8 of 8
Thread Starter 
Thanks, for the help guys. I really appreciate it, this place is amazing. I'm on my way to learning and be able to help others. Apparently the problem was I dislodged the bottom graphic card trying to get my huge hand to the jumper. When I pulled the card I tried it to just see and it started. I put them back in, and we're good now. What do I need to do if it gets in the reboot loop again? Do I need to just leave it alone?
BloodHammer
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BloodHammer
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