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ASUS P5Q3 Deluxe restarts once at power on, no POST and no beep codes

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#1 P4-Takumi


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Posted 22 April 2017 - 07:13 PM

I recently bought a used water cooled ASUS P5Q3 Deluxe board and it seems to have issues powering on. Once he board recives power for the first time and it turned on the fans Spin up but I don't get any display, after turning it off and back on it resets after a second of power, then the fans spin up with constant power but still nothing on screen, so I began the process of elimination. removing the accessories and clearing CMOS, then the gpu and then trying pairs and individual ram sticks in various sockets as well as other kinds of ram sticks, I've also tested the PSU on similar boards and it works just fine the only different response i get is when all the sticks are removed giving me a beep code, telling me there's no ram installed on the board. I've swapped cpu's and gpu's but with no difference. So I'm pretty stuck as to why I can't get a post out of this board.
Hope to hear something soon!

MB: ASUS P5Q3 Deluxe WiFi-AP @n
CPU: Intel Core 2 Quad Q9550
RAM: 4x4GB (16GB) Corsair Vengance Pro DDR3 1600 1.5v
GPU: Gigabyte GTX 560
PSU: Ultra LSP 550W v2 Pro

Other hardware used test components
CPU: Intel Core 2 Quad Q9400, Intel Core 2 Duo E7400
RAM: Kingston HyperX Blu 2x8GB
GPU: Gigabyte GT 440

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#2 smax013


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Posted 27 April 2017 - 07:37 PM

Since it seems like you have tried different RAM, different processor, and different GPUs, that tends to suggest to me that there is an issue with the mobo. Not to go all Occam's razor on you, but in other words, you seemed to have eliminated every problem leaving just the mobo as the potential problem. You bought it used. What is supposedly working when you bought it? If so, I would contact who you bought it from and talk to them.

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