Custom Build First Boot Issue. Cannot Access BIOS when GPU is installed.

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I have recently purchased both the Asus ROG Maximus VII Ranger motherboard and the Asus Strix GTX 750 Ti graphics card. I have assembled all the components. When the Graphics Card is installed and I attempt to boot the system, the motherboard displays the error code AE (meaning: Legacy Boot event) then the computer does not boot, and I can not access the BIOS. I have tested this by removing the graphics card and attempting to boot the system, the motherboard still shows the error code AE although the screen turns on and I can access the BIOS. However this is unhelpful as the intent of the build is for gaming and no graphics card does not meet that purpose. So, Is this merely a fault of my construction of the system? Or is the Graphics card/motherboard faulty?

A more extensive list of parts is as follows;
CPU: Pentium G3258
GPU: ASUS Strix GTX 750 Ti
MOBO: ASUS Maximus VII Ranger
HDD: Western Digital Blue 1TB
RAM: Kingston HyperX Fury 1600MHz (2x4G)
PSU: Corsair CS550M 550W Modular

Thanks in Advance,
 
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Yep I have tried that, still get the same result.
 
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volcanoscout

volcanoscout

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Jan 5, 2014
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Seems to me that you have two issues, i.e. the legacy boot event, which means your mobo isn't accessing the HDD, and the graphics card, which appears to be preventing boot to BIOS. It's likely that the GPU is a driver issue which, if switching PCIe isn't enabling even basic functionality, can't really be addressed until you've got an OS up and running.

If you've already got an OS (Windows?) installed on the HDD, you probably need to do a clean install. You can try doing a repair or recovery, but with a new mobo there's going to be driver conflicts to sort out if it works at all. Regardless of whether you've got an OS installed already or not, you'll need to make sure that your boot priority in BIOS is set to access your install disk or bootable USB drive first.

Once you've got the OS up and running, install all of your mobo drivers and update your BIOS if necessary (shouldn't be, but you'll want to check the Asus support site). Then disable the standard VGA (iGPU, on-board graphics, etc) driver, power down, install the GPU, connect your monitor to it, then reboot and install the nVidia driver. Then update your Windows, etc.
 
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Cool, So just install windows without the GPU, update everything then install the GPU. Should I also try re-seating the CPU like mentioned earlier ^
 
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volcanoscout

volcanoscout

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Jan 5, 2014
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I would try the steps I listed first since I don't think it's a CPU issue, but I could be wrong and reseating the CPU wouldn't hurt - just make sure that it's carefully lined up when you reseat it and that the lid is firmly secured. Also make sure that you've got replacement thermal paste on hand to replace the current paste.

Install windows, then mobo drivers, then GPU and driver. Don't do the Windows updates until after the GPU - those take forever and it would suck if you spend all that time updating windows and then have something go wrong afterwards.
 
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When the GPU is not installed, none of those lights are lit up. When the GPU is installed, the BOOT_DEVICE_LED is lit.
 
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