5 settings I solely discovered after my {hardware} wasn’t working the way in which it ought to
Think a couple of PC that is not damaged sufficient to do an RMA, however one thing is off. The laptop works, however the GPU benchmarks do not match the opinions, or your Ethernet drops as soon as a day for no motive, or your excessive refresh price gaming monitor feels a little bit sluggish.
Then you begin digging, discover a setting buried deep contained in the OS or within the BIOS, and the whole lot clicks. Over the years, I’ve discovered not less than 5 settings solely after my hardware started acting weird.
ReBAR (Resizable BAR)
A BIOS setting that unlocks your GPU’s full reminiscence entry
My B580 was working high quality till the system immediately began to stutter. I could not even play YouTube movies with out constant lag. The downside appeared to have triggered after a driver replace—good trace, besides it does not inform you a lot.
I fired up CPU-Z to test the system state, and it confirmed that Resizable BAR (ReBAR) was disabled. To flip it again on, I needed to dig into my BIOS and ultimately flip off Compatibility Support Module (CSM), and that fastened the issue.
So what’s ReBAR? Resizable Base Address Register is a PCI Express characteristic that lets your CPU entry your whole GPU’s VRAM directly. Without it, the CPU can solely see VRAM by means of a small 256MB window. That means each time it must ship textures or shaders to the GPU, it has to do it in 256MB chunks and preserve remapping that window. ReBAR removes this restriction so the CPU can handle all the VRAM pool immediately and write precisely the place it must. The result’s higher GPU efficiency, with as much as 10-15% greater FPS in some video games.
Energy Efficient Ethernet (EEE)
An influence-saving characteristic that may tank your wired connection
This could also be a extra widespread downside, however the answer was not so widespread. I exploit Ethernet for a steady connection wherever attainable, and my house is one of the best place to have a wired setup, besides that the wired connection too may be unreliable typically.
My Ethernet connection was having what is basically known as hyperlink flapping, the place the connection retains disconnecting and reconnecting as a result of the Ethernet port fails to take care of a steady hyperlink. Looking for an answer led me to Energy Efficient Ethernet (EEE), a time period I wasn’t actually conscious of. On the brilliant facet, of all of the Ethernet issues I’ve encountered, this was the best to repair. On Windows, the setting is within the community adapter’s driver properties in Device Manager:
- Right-click Start and open Device Manager.
- Expand Network adapters.
- Right-click your Ethernet controller (mine was Intel(R) Ethernet Controller I226-V) and select Properties.
- Go to the Advanced tab.
- In the Properties listing, choose Energy Efficient Ethernet.
- Set Value to Disabled (or Off), then click on OK.
So what does EEE do, and why does it trigger hyperlink flapping? EEE is a power-saving characteristic that places your wired Ethernet hyperlink right into a nap when it is idle. Instead of continually transmitting alerts, when idle, one facet tells the opposite that it is coming into Low Power Idle (LPI) and turns off the transmitter. It nonetheless sends quick refresh alerts periodically to maintain the hyperlink alive, and when actual information arrives, it sends a wake sign.
The situation comes when two completely different distributors’ {hardware} has to hold out this sleep-wake cycle hundreds of occasions an hour. If the cardboard does not wake cleanly, mismatched timing and buggy firmware may cause the hyperlink to drop. The repair is to show off EEE completely, and the trade-off is minimal. You get a steady connection, and it may cost you a fraction extra in electrical energy.
Dynamic Refresh Rate
Why your excessive refresh price show retains resetting to 60Hz
Imagine shopping for a gaming laptop computer with a 144Hz show, and it retains resetting to 60Hz. That’s precisely what occurred with mine. Every time I unplugged the laptop computer from the ability supply, the display screen flickered with a short black display screen after which got here again. That blink was the telltale signal of a refresh price change.
When I checked the show settings, the refresh price had dropped to 60Hz with the laptop computer unplugged and solely went again to 144Hz once I plugged it again in. I attempted altering the ability plan, however that did not assist. What ultimately fastened it was turning off Dynamic Refresh Rate within the show settings. You can discover it by going into Settings > Display > Advanced show and switch off Dynamic Refresh Rate.
Dynamic Refresh Rate is a Windows 11 characteristic obtainable just for appropriate shows. Instead of maintaining a excessive refresh price display screen locked at 120Hz, 144Hz, or 165Hz on a regular basis, it holds a 60Hz baseline and raises the speed solely when the lively program advantages from further smoothness, like video games, scrolling, and pen enter. This helps save battery life on laptops. Ideally, the switching needs to be invisible, however the characteristic can clash with producer show apps which have their very own dynamic refresh price settings, inflicting the sparkle and black display screen I used to be seeing.
Selecting the improper GPU
When Windows makes use of your built-in graphics as an alternative of the devoted card
Did your GPU efficiency can differ primarily based on which app you are utilizing? Some apps like Adobe’s Painter have a tendency to choose a GPU primarily based on which monitor the app window is open on. If the app is open on my monitor that is related to the motherboard’s video output, which makes use of the built-in GPU, then Windows holds onto the built-in GPU even when a devoted GPU is offered.
In my case, the app was utilizing the built-in AMD Radeon GPU as an alternative of the Nvidia RTX I paid a premium for. If you are noticing a sluggish viewport, laggy brushes, or total poor graphics efficiency, be certain that the monitor is related to your GPU’s port, or open the app on the proper show. This is straightforward to overlook on a multi-monitor setup.
To repair this, you’ve gotten just a few choices. You can change the cable configuration so the monitor plugs into the graphics card as an alternative of the motherboard. You can set the GPU choice in Windows Graphics Settings (Settings > Display > Graphics) to High efficiency for the app in query. Or you may manually assign the popular GPU within the Nvidia Control Panel.
XMP/EXPO not enabled (BIOS)
Your RAM could be operating at 2014-era speeds
This could also be extra of a newbie mistake, however it’s one which value me actual efficiency. Imagine shopping for a DDR5-6000 package, designed to run at 6000 MT/s, and all you get is 4800 MT/s at finest. While the opportunity of being bought pretend reminiscence exists, the rationale your velocity does not match the marketed spec is probably due to default settings.
While taking a look at options, I discovered that the EXPO (AMD’s reminiscence profile) was disabled within the BIOS. Once enabled, the stick ran on the full marketed velocity. If you are on Intel, search for a setting labeled XMP as an alternative.
So what are XMP and EXPO? Your reminiscence stick shops two units of velocity profiles out of the field. The first is the JEDEC normal, which is a universally secure velocity that each motherboard and CPU will settle for with out points. With JEDEC, DDR5 reminiscence runs at 4800 MT/s, and DDR4 runs at 2133 MT/s. The second profile is XMP (Intel) or EXPO (AMD), which is the velocity printed on the field and examined by the producer. By default, the motherboard sticks to the JEDEC baseline because the most secure possibility. XMP and EXPO technically depend as overclocking although your reminiscence helps these speeds out of the field. The motherboard does not attempt to play it secure, and you find yourself with roughly 25% of unused memory bandwidth.
These settings exist for a motive
These settings exist as a result of Windows and {hardware} distributors typically prioritize stability and compatibility over peak efficiency. That’s an inexpensive trade-off for most individuals. But it additionally means you could be shedding frames as a result of ReBAR is off, underusing your reminiscence as a result of XMP is not enabled, or watching an app crawl as a result of the system picked the built-in GPU.
What’s worse, none of those scream damaged {hardware}, which is precisely why they’re really easy to overlook. The excellent news is that when the place to look, each repair on this listing takes lower than a minute.
