What is Above 4G Decoding – your BIOS's dark horse. Should it be enabled? (2024)

FAQs

Should I turn on above 4G decoding? ›

edit. For sure 4G decoding is necessary if you have multiple GPUs that's common in mining rigs and professional rendering. So you have to enable 4G for “powerful” rigs to work fine. It is not mandatory if you only have one GPU.

Answer. The definition of “Above 4G decoding” is to allow the user to enable or disable memory mapped I/O for a 64-bit PCIe device to 4GB or greater address space. Please enable this function when using multiple graphics cards for cryptocurrency mining.

"Above 4G Decoding affects the amount of RAM allocated at a time for the processor to work with video memory. And this explains some increase in the consumption of RAM. Previously, you had to huddle in a 4GB block, while with the Above 4G, you can use the whole area.

As the notes say, this enables 64-bit capable device to decode in 4G address space. The definition of “Above 4G decoding” is to allow the user to enable or disable memory-mapped I/O for a 64-bit PCIe device to 4GB or greater address space. Please enable this function when using multiple PCIe cards.

Fast Boot is a feature in BIOS that reduces your computer boot time. If Fast Boot is enabled: Boot from Network, Optical, and Removable Devices are disabled. Video and USB devices (keyboard, mouse, drives) won't be available until the operating system loads.

While it increases performance in some titles, the improvement is modest and can even worsen performance in some cases. NVIDIA, for their part, automatically disables resizeable BAR for games whose performance worsens with the feature on, so you don't really have a reason not to take advantage of it.

In general, install Windows using the newer UEFI mode, as it includes more security features than the legacy BIOS mode. If you're booting from a network that only supports BIOS, you'll need to boot to legacy BIOS mode. After Windows is installed, the device boots automatically using the same mode it was installed with.

Once in BIOS Setup Utility, users can change hardware settings, manage memory settings, change the boot order or boot device, and reset the BIOS password, among other configuration tasks.

To enable “Above 4G Decoding”, Press F1 during POST and go to Advanced->PCI Subsystem Setting->Above 4G Decoding item.

How do I know if my resizable bar is working? ›

Verifying If Resizable BAR is Working

On the bottom left of the NVIDIA Control Panel, simply click “System Information”, and in the new window look for “Resizable BAR” on the right. If it says “Yes”, you're set.

The higher the numbers, the more powerful the chip. For example, an Intel Core i5 "8400" will be less powerful than a Core i5 "8600." The major difference is "clock speed" and "boost clock speed." The higher the clock speeds, the faster the chip can process what you want.

Clock speed is measured in GHz (gigahertz), a higher number means a faster clock speed. To run your apps, your CPU must continually complete calculations, if you have a higher clock speed, you can compute these calculations quicker and applications will run faster and smoother as a result of this.

Some processors, such as the Intel Core i9-12900K and AMD Ryzen 9 5900X, offer both. If you want a processor for browsing the internet and using basic apps, any processor with four or more cores from the last few years should work well.

As earlier stated, a fast startup is enabled on most modern laptops and PCs. It's one of the many ways that help you increase your Windows performance. But many people advise against using a fast boot, or at least, disable it as soon as you power up your system for the first time.

We recommend disabling Fast Startup to ensure your device is always up-to date. By doing this, you can help keep your device running smoothly and avoid any potential issues.

Whether to enable fast boot or not depends on individual preferences and the specific use case. Advantages of enabling fast boot: Quicker startup times as the computer skips various POST (power-on self-test) and boot routines.

Resizable BAR (Base Address Register) is a PCIe capability. This is a mechanism that allows the PCIe device, such as a discrete graphics card, to negotiate the BAR size to optimize system resources. Enabling this functionality can result in a performance improvement.

Resizable BAR works the same as AMD's Smart Access Memory, which also promises to improve frame rates in certain games by up to 10 percent. The frame rate increase using both will really depend on the game, and resolution will also impact how much performance will improve.

Ah. Well. Look, Nvidia has said straight-up that not every game will see a positive effect, and in their own testing, some games actually dropped in performance; for the latter, Resizable BAR is supposed to be invisibly disabled.

How do I set my BIOS for best performance? ›

BIOS software has several roles to do, but its most important role is to load the OS for you and to manage the data flow between the OS and attached hardware devices. To access and configure BIOS you need to go to BIOS Setup Utility after performing a set of instructions.

Is it safe to reset the BIOS? Yes it is safe to reset the BIOS to default. Resetting the bios does not have any effect or damage your computer in any way. A bios reset will reset the bios to its factory settings and will not delete any data on your disk.

Never make changes to your BIOS unless you're confident on what it will do. To access the BIOS, turn on your computer and press the startup key. In most cases, this is "F2" or "Del". Change BIOS settings by using the arrow keys on your keyboard and "Enter".

The most common BIOS settings for modification are: Changing the boot order. Adjusting available video memory. Setting a BIOS password.

Open Command Prompt, type “wmic bios get smbiosbiosversion” in the window and hit Enter to check your BIOS version. Consult the documentation for your specific PC or motherboard on the manufacturer's website for instructions on how to download and install the latest BIOS version.

Because a BIOS is critical to making your PC run, updating it carries a bit more risk than other software updates. If a BIOS update goes wrong, it could stop your motherboard from working correctly and potentially stop your computer from starting as expected.

Below are some additional details regarding requirements for key features: BitLocker Drive Encryption (available with Windows 10 Pro or Windows 10 Enterprise only) requires a Trusted Platform Module (TPM) 1.2 or higher and Trusted Computing Group (TCG)-compliant BIOS or UEFI.

If you don't see the 4G or LTE option on your Android and are sure your phone is compatible, dial #*#4636#*#* to enable the feature.

Go to Settings and make sure mobile data is switched on. If you have a 4G device, go to Settings and check 4G is switched on. Check your Network mode is set to automatic. Try switching your phone off and back on.

How do I change my Network type to 4G? ›

Do note that Resizable BAR will not increase memory bandwidth. What it does is let the CPU directly access the entire GPU frame buffer memory, instead of using the usual 256 MB “dump”. That reduces latency because the graphics assets are now accessible by the GPU at all times.

This is a memory technology that AMD officially introduced in 2020 with its RX 6000 line, although it's based on Resizable Bar technology, which has been around for a while. Basically, it's a new design that allows the CPU in a computer to access much more of a GPU's RAM than it previously could. Related.

AMD Smart Access Memory is related to the PCI-Express Resizable BAR (Base Address Register), or ReBar for short, built into modern motherboards. AMD has its own sauce for utilizing Resizable BAR that it calls AMD Smart Access Memory.

Resizable BAR (or Smart Access Memory) must be enabled for optimal performance when using Intel® Arc™ A-Series Graphics. Though, Intel® Arc™ Graphics can still work on a system without Resizable BAR enabled. Resizable bar is a motherboard feature that can be enabled under BIOS settings.

A CPU that offers multiple cores may perform significantly better than a single-core CPU of the same speed. Multiple cores allow PCs to run multiple processes at the same time with greater ease, increasing your performance when multitasking or under the demands of powerful apps and programs.

When buying a new computer, whether a desktop PC or laptop, it's important to know the number of cores in the processor. Most users are well served with 2 or 4 cores, but video editors, engineers, data analysts, and others in similar fields will want at least 6 cores.

If you're just looking for a computer to get basic tasks done efficiently, a dual-core processor will probably work for your needs. For CPU intensive computing like video editing or gaming, you'll want a higher clock speed close to 4.0 GHz, while basic computing needs don't require such an advanced clock speed.

Should I enable all cores in msconfig? ›

But don't worry you haven't damaged your CPU but it's recommended that you let the system manage cores automatically. If you enable all of them when Windows doesn't need to you will only drain more power.

Within the same generation of CPUs, a processor with a higher clock speed will generally outperform a processor with a lower clock speed across many applications. This is why it's important to compare processors from the same brand and generation.

Intel claims that the 5.6GHz turbo boost clock speed of the new Core i9 chip is the fastest mobile processor as of December 2022, with 11 percent faster single-thread performance and 49 percent faster multitask performance over the prior-generation Intel Core i9-12900HK chip.

A more powerful processor will help with tasks such as streaming or running multiple programs. At the same time, large amounts of RAM will help with multitasking but will primarily improve performance in complex programs and operations.

Resizable BAR (Base Address Register) is a PCIe capability. This is a mechanism that allows the PCIe device, such as a discrete graphics card, to negotiate the BAR size to optimize system resources. Enabling this functionality can result in a performance improvement.

The ErP function automatically turns the main power switch OFF when the main power switch is ON and the machine remains in any of the following conditions for a certain period of time: - The sub power switch is OFF. - Auto Shut OFF is activated. - Auto Low Power is activated.

Resizable BAR isn't a magic lever that throws your PC into Ludicrous Speed, but it can give you a nice little boost. AMD promises up to 16 percent more gaming performance, while Nvidia claims up to 12 percent. Some select games, like Assassin's Creed: Valhalla and Resident Evil 3, see much bigger enhancements.

The act of changing the dimensions of an object in a graphical environment. For example, in a graphical user interface, a user may resize their window to allow them to view other windows on their screen, or help arrange windows.

Should I turn ErP on or off? ›

Enabling ErP function cut usb power after shutdown.it should be enabled if you don't want unnecessary lights on keyboard or sounds on PSU.