Gigabyte z77-d3h onboard graphics constant reboot

zimbabwe

Honorable
Oct 19, 2013
6
0
10,510
when i enable onboard graphics on Gigabyte z77-d3h, the system starts to reboot constantly.

i've installed windows 7 with GTX 660, and used it for some months. then i've decided to give intel onboard graphics a try for some reason and enabled it from bios. after bios screen comes in just before the windows logo, system reboots. it looks like win 7 problem, because i can operate BIOS with onboard graphics.

i took off GTX from the system, same constant reboot before win 7 kicks in.

tried all possible answers that i've found from forums rather than clean win 7 install.
checked out RAM modules, made CMOS reset, closed power saving shits, updated BIOS from f18 to f21... none helped.

before i re-install win 7, i want to be sure if there's any other way to make it work.

thanks in advance
 
Solution
If not working, then uninstall in Device manager the NVidia driver, power off, remove the graphics card and restart. Now you should be able to use the Intel Graphics.

zimbabwe

Honorable
Oct 19, 2013
6
0
10,510


unfortunately the win 7 was installed with GTX from the start without Intel Graphics enabled. as far as the OS is not accessible with onboard graphics i am unable to install it now.
 

zimbabwe

Honorable
Oct 19, 2013
6
0
10,510

windows only works with GTX installed, Intel Graphics disabled.

* when GTX plugged in / IGP disabled: entering bios screen OK, windows OK
* when GTX plugged in / IGP enabled: entering bios screen OK, windows NOT WORKING, constant REBOOT
* when GTX plugged out / IGP enabled: entering bios screen OK, windows NOT WORKING, constant REBOOT

i've tried both VGA port and DVI port on Intel Graphics, no change
 

zimbabwe

Honorable
Oct 19, 2013
6
0
10,510


This helped me to go until Windows boot screen. After some unsuccessful attempts to start windows, it went into system repair. At first it gave errors and couldn't fix the problem (and in the log there was nothing about driver at first). But after some couple of try-outs it worked!!!

But after i figured out the actual and weird problem: The system reboots continuously, when integrated graphics memory is set to any figure rather than 64 MB.

Anyway, thanks a lot. System is set, drivers installed and both graphics platforms are working.