Computer wont start fans speed up but all i get is a black screen no bios.

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leoqzd

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Oct 7, 2014
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I noticed when i started my pc I wasn't getting the bios option so I tried to download the bio drives from asus but then my pc shut down and now it wont start, i click the power button and fans speed up like crazy but I only get a black screen no bios option. I have an old HP so I took my ram and hard drive and put it in my HP and it does the same thing.

pc specs to the best of my knowledge:
asus p6t deluxe motherboard
Intel i7 (1336 socket i think)
120 gig kingston ssd
750 gig seagate
two invidia gtx 480
6 gig corsair xms3 ddr3 ram
new 850 hx watt corsair power supply
 
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leoqzd

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Oct 7, 2014
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that could be the case Plaintuts, I'm not 100% sure what p6t motherboard series i have since i lost the manual, but if it is how can i reset my motherboard? it has a power and reset button on the motherboard itself and i pressed it for a few second but it didn't change anything.
 
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leoqzd

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Oct 7, 2014
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Ok I got the hard drive and Ram to wok on the hp so I know its not the ram or the ssd I also took out the battery from my asus motherboard in hopes of resetting everything but that didnt work turns on, and fans are normal now but still just getting a black screen.
 
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leoqzd

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Oct 7, 2014
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ok went online found a manual and how to clear cmos i even did the little jumper thing with and without the battery like the manual suggested but nothing. I notice though that my keyboard and mouse dont have power. the manual suggested to hold the delete key till the bios start so i noticed the lights on my keyboard werent on so i plugged it in to my other pc and lights came on. I dont know if it could be a power thing i re plugged all the cables from the psu to the mobo and the power button along with the reset button on the mobo light up when i plug in the psu.
 
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plaintuts

plaintuts

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May 5, 2014
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So after the cmos reset, there is no post just black screen?

Also the mouse and keyboard connected to a usb port is not powered..

If so, then thats bad...

I will get back to you later, i'll check if you can somehow re flash the bios.

Can you give me the exact model of the motherboard.
 
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leoqzd

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Oct 7, 2014
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yes just a black screen.
mobo is p6T im just not sure if its deluxe or se sorry
and yes the keyboard and mouse were plugged in to the back usb ports and they didnt look like they were powered.
 
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leoqzd

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Oct 7, 2014
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Yes it has the 3 pin jumper like in the first part of the manual and I did that to clear it last night didn't work. I don't fully understand the second part where it says there is a clear switch in back of the 0/I button. There is a reset button next to the 0/I button and the clear c moss pins are at the bottom right corner if your facing the the top side of the mobo
 
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plaintuts

plaintuts

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The reset switch on the Mobo is just a switch similar to one on the pc case, for reseting the computer, not the bios..

If theres no clear cmos switch on the I/O panel then, its a different version of the Mobo.

If you can, disassemble the Mobo from the case, remove the cmos battery,
Put the cmos jumper on 2 and 3,
Sleep...
Next day. Re assemble,
Place the cmos battery,
Put the cmos jumper to 1 and 2
Try to boot up..
 
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Guest

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Believe it or not, I replaced the button battery in my hard drive and it solved the problem...must have been dead!



 
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