overclocking leads to unstable visuals and screen distortion
overclocking leads to unstable visuals and screen distortion
Hey everyone
I own a Haswell Intel Devil’s Canyon i7-4790K with the 4600 graphics. I recently acquired a Samsung S27D850T, which offers a resolution of 2560 × 1440. My previous monitor was a Samsung S27D590C that runs at 1920 × 1080. I mainly purchased the 2K monitor as my primary desktop, upgrading from an old TV with HDMI. Since I already had a 1080p display for gaming, I decided to use it as an extended screen. The issue is that on the 1080p monitor, graphics become very choppy when I switch to extended display mode. My system is overclocked at 4.8GHz, with mixed RAM speeds of 1060/1333, which are overclocked to 1600MHz. The CPU cache is also OC’d to 4.6GHz, which isn’t a perfect match with the CPU—preferring around 1.38v instead of higher. I saved my overclock profile and reverted to the default BIOS settings. Interestingly, the jittery and tearing graphics seem to have vanished, suggesting my overclocking might be the cause. If you need any assistance, let me know.
Will
P.S. My motherboard is an Asus Sabertooth Z97 Mark 2
Willowen100 asked about V-Sync status. They mentioned trying to disable it but found no 'off' option in the guide provided. They noted that even without tearing, the graphics on the extended display remain choppy, comparing it to watching something at a low frame rate. They shared an update with a video showing tearing in duplicate mode and some graphic fluctuations in extended mode. They suggested checking the monitor settings, possibly adjusting the refresh rate to match the main display (around 40-60Hz).
Check again, see if it still works. Keep going down until you get a dedicated GPU, even if it's a cheap one under $100.
HDD-Mod :
Reduce the OC a bit and check again, continue down until it stops, aim for a dedicated GPU, even if it's a budget model under $100
😉
I reset all the changes I made to manual mode back to auto and kept only the overclocked parts, which were the CPU core voltage at 4.8GHz and 1.4v along with some CPU load line adjustments. However, the issue still remained. The heat shouldn't be an issue since I have Corsairs twin 14cm fan liquid cooler.
What's particularly noteworthy is that even with the default settings, when I scroll through Facebook on my 2K monitor using a film in VLC on the 1080p screen, I still see the slightly choppy graphics again.
Willowen100 asked about V-Sync status. They mentioned trying to disable it but found no 'off' option in the guide provided. They noted that even without tearing, the graphics on the extended display remain choppy, comparing it to watching something at a low frame rate. They shared an update with a video showing tearing in duplicate mode and some graphic fluctuations in extended mode. They suggested checking the monitor settings, possibly adjusting the refresh rate to match the main display (around 40-60Hz).