Display doesn't work when GPU installed

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   I am building a new computer using a Z790 Riptide board. The power turns on fine - all of the lights and the fans go on. However, when I try to connect a monitor to the HDMI port on the motherboard, it doesn't get a signal. I tried the same cable/monitor combo with another computer and it worked fine.

One thing I tried was removing the GPU (a Geforce RTX 4070 Ti Super) and then the display started working and I was able to get into the bios. When I reinstalled the GPU, it stopped working again. I've tried a couple different power adapter cables to connect the GPU to the PSU with no change.

Any idea what's going on? What should I try next?

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grysqrl Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27 Sep 2024 Status: Offline Points: 35	Post Options Post Reply Quote grysqrl Report Post Thanks(0) Quote Reply Topic: Display doesn't work when GPU installed Posted: 29 Sep 2024 at 11:32am
	I am building a new computer using a Z790 Riptide board. The power turns on fine - all of the lights and the fans go on. However, when I try to connect a monitor to the HDMI port on the motherboard, it doesn't get a signal. I tried the same cable/monitor combo with another computer and it worked fine. One thing I tried was removing the GPU (a Geforce RTX 4070 Ti Super) and then the display started working and I was able to get into the bios. When I reinstalled the GPU, it stopped working again. I've tried a couple different power adapter cables to connect the GPU to the PSU with no change. Any idea what's going on? What should I try next?

grysqrl Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27 Sep 2024 Status: Offline Points: 35	Post Options Post Reply Quote grysqrl Report Post Thanks(0) Quote Reply Posted: 4 hours 36 minutes ago at 9:44pm
	Update for anyone who is looking for this in the future: Clearing the CMOS worked. I have no idea why, but things seem to be working now.

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Online Points: 24188	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 4 hours 31 minutes ago at 9:49pm
	Thanks for the update grysqrl. Clearing CMOS before powering up a newly built system is always a good idea.