Smoothness you paid for can vanish behind a single dropdown, so the first move is to confirm the actual refresh rate the system is sending to the panel. In South Africa a quick local check beats a courier return every time, so start with what you can test at your desk.

Quick Answer

Yes, this is fixable in minutes: a x870e panel stuck slow just needs the correct rate selected and a cable that can carry a 144Hz target. Plan on R4,500 to R12,500 only in the rare case a faulty cable or port is to blame. Replacement parts in this class run about R4,500 to R12,500, so the free checks below are well worth the few minutes first.

Check in-game and per-app overrides

A game may force its own refresh or be capped by a frame limiter, so the desktop can read correct while play feels slow. Set the game to your panel's native rate, disable any background limiter, and confirm vsync is not pinning you low. Per-app settings override the desktop value more often than people expect.

Set the rate in Windows display settings

Open Advanced display settings, pick the panel, and choose the highest listed refresh rate from the dropdown. Windows frequently saves a safe default after a driver update or a fresh install, so the panel runs slow until you raise it by hand. Apply, keep the change, and the difference is immediate.

Match the cable to the bandwidth you need

High refresh at high resolution needs the right cable standard, so use DisplayPort or a high-bandwidth HDMI run rated for the panel. A cheap or old cable will cap the list of available rates well below a 144Hz target. Swapping to a certified cable often unlocks numbers that simply were not appearing before.

FAQ

Why does Windows keep defaulting my refresh rate to a lower value?

Windows often saves a safe default after a driver update or a clean install, so the panel runs slow until you raise it by hand. Set the top rate in Advanced display settings and it will hold.

Will a better cable really change this?

Yes, on a high-refresh or high-resolution panel the cable standard sets the bandwidth ceiling, so a certified DisplayPort or high-spec HDMI run can unlock rates a cheap cable hides. A good cable is a small spend against the cost of the rest of the build.

Should I enable adaptive sync as well?

If the panel and card support it, yes, adaptive sync smooths pacing and removes tearing without capping your rate. Turn it on in the GPU control panel after you have set the correct refresh rate.

Match the parts before you spend. Browse X870E motherboards with the right cable and monitor combination so your build hits its full refresh rate out of the box.