What is the southbridge?

This is a recommends products dialog
Top Suggestions
Starting at
View All >
Sign In / Create Account
language Selector,${0} is Selected
Register & Shop at Lenovo Pro
Register at Education Store
Pro Tier Benefits
• Save up to an extra 20% on Think everyday pricing.
• Spend $15K, advance for FREE to Plus Tier with increased benefits.
Plus Tier Benefits
• Save up to an extra 25% on Think everyday pricing.
• Spend $50K, advance for FREE to Elite Tier with increased benefits.
Elite Tier Benefits
• Save up to an extra 30% on Think everyday pricing.
Reseller Benefits
• Access to Lenovo's full product portfolio
• Configure and Purchase at prices better than Lenovo.com
View All Details >
more to reach
PRO Plus
PRO Elite
Congratulations, you have reached Elite Status!
Pro for Business
Delete icon Remove icon Add icon Reload icon
Temporary Unavailable
Cooming Soon!
. Additional units will be charged at the non-eCoupon price. Purchase additional now
We're sorry, the maximum quantity you are able to buy at this amazing eCoupon price is
Sign in or Create an Account to Save Your Cart!
Sign in or Create an Account to Join Rewards
View Cart
Your cart is empty! Don’t miss out on the latest products and savings — find your next favorite laptop, PC, or accessory today.
item(s) in cart
Some items in your cart are no longer available. Please visit cart for more details.
has been deleted
Please review your cart as items have changed.
Contains Add-ons
Proceed to Checkout
Popular Searches
What are you looking for today ?
Quick Links
Recent Searches
Hamburger Menu
skip to main content

What is the southbridge?

Southbridge is a component found on a computer's motherboard. It is responsible for managing various peripheral devices connected to the computer, such as universal serial bus (USB) ports, audio ports, serial ports, and more. Think of it as the traffic cop of your computer, coordinating and controlling the flow of data between the different components.

What is the purpose of the southbridge?

The southbridge's main purpose is to handle the input/output (I/O) functions of the computer. It acts as a bridge between the central processing unit (CPU) and other peripheral devices, facilitating communication and data transfer. Without the southbridge, your computer would have a hard time interacting with external devices.

What are some common peripheral devices that the southbridge manages?

The southbridge manages a wide range of peripheral devices. It handles universal serial bus (USB) ports, which allow you to connect devices like keyboards, mice, printers, and external storage devices to your computer. It also manages audio ports, enabling you to connect speakers, headphones, and microphones. Additionally, it handles serial and parallel ports, used for connecting older devices, as well as the integrated graphics on some motherboards.

Is the southbridge the same as the northbridge?

No, the southbridge and the northbridge are two separate components on a computer's motherboard. While the southbridge focuses on input/output (I/O) functions, the northbridge handles the memory controller and high-speed communication between the central processing unit (CPU) and random-access memory (RAM). The northbridge is responsible for managing tasks that require high-speed data transfer, while southbridge handles slower, peripheral-related tasks.

Can the southbridge be upgraded or replaced?

In most cases, the southbridge is integrated into the motherboard and cannot be upgraded or replaced separately. If you need to upgrade southbridge's functionality, you will typically have to replace the entire motherboard. However, advancements in technology have led to the integration of more features into the central processing unit (CPU), reducing the need for a separate southbridge chip in some modern systems.

Does the southbridge affect the performance of my computer?

While the southbridge plays a crucial role in managing peripheral devices, it does not directly impact the performance of your computer in terms of processing speed or memory access. However, a poorly designed or outdated southbridge can limit the speed and capabilities of the peripheral devices connected to your computer. For example, if you have a slow universal serial bus (USB 2.0) the southbridge on your motherboard, it can restrict the data transfer speed of your USB 3.0 flash drive.

Can I update the southbridge drivers?

Yes, you can update the drivers associated with the southbridge. The drivers are software components that allow your operating system to communicate effectively with the southbridge and the connected peripheral devices. They periodically release driver updates to fix bugs, improve compatibility, and enhance performance. You can usually find the latest drivers on the website or through the motherboard support page.

Are there any alternatives to the southbridge?

Yes, in some cases, alternative technologies have emerged to replace the traditional southbridge. One such example is Intel's platform controller hub (PCH), which integrates both the northbridge and the southbridge functions into a single chip. This integration reduces the complexity of the motherboard design and improves efficiency. Other may have their own variations or alternatives to southbridge, each with its own advantages and features.

What is an example of a feature that might be integrated into a modern southbridge or its alternative?

Certainly, one example of a feature that can be integrated into a modern southbridge or its alternative is the support for advanced storage technologies. For instance, some southbridge chips may include support for serial ATA (SATA) or serial attached SCSI (SAS) interfaces. These interfaces enable faster and more efficient data transfer between the motherboard and storage devices like hard drives (HD) and solid-state drives (SSDs). By integrating such support, the southbridge or its alternative can enhance the overall storage performance of your computer.

What is the impact of the southbridge on power management?

The southbridge also plays a role in power management. It provides support for advanced power-saving features, such as advanced configuration and power interface (ACPI). ACPI allows the operating system to control the power states of various devices connected to the southbridge, enabling efficient power management, and reducing energy consumption when certain components are not in use. This feature helps in conserving power and extending the battery life of laptops and other portable devices.

Can the southbridge affect the compatibility of peripheral devices?

Yes, the southbridge can impact the compatibility of peripheral devices. Different southbridge chips may have varying levels of compatibility with certain devices, especially when it comes to older or less common hardware. For example, if you have an older printer or scanner that uses a parallel port, you need to ensure that the southbridge on your motherboard supports parallel ports. If not, you may need to use a separate adapter or consider upgrading your hardware to ensure compatibility.

Are there any security features associated with the southbridge?

Yes, the southbridge can incorporate security features to enhance system protection. For instance, it may include features like secure digital input output (SDIO) and trusted platform module (TPM) support. SDIO allows for secure communication with secure digital (SD) cards, while TPM provides hardware-based security functions such as encryption and secure storage of cryptographic keys. These features can help safeguard your data and protect against unauthorized access.

Can I troubleshoot issues related to the southbridge?

While it is less common to encounter specific issues solely related to the southbridge, troubleshooting can be done by following some general steps. First, ensure that you have the latest drivers installed for southbridge and the connected peripheral devices. Check the website for any driver updates or support documentation. If you're experiencing issues with a specific device, try connecting it to a different port or testing it on another computer to determine if the issue lies with southbridge or the device itself.

How does the southbridge interact with the operating system?

The southbridge communicates with the operating system through device drivers. When you connect a peripheral device to your computer, the operating system recognizes it and loads the appropriate driver to facilitate communication between the device and southbridge. The driver acts as an intermediary, enabling the operating system to send commands and receive data from the device through southbridge. The operating system relies on southbridge to properly manage the input/output (I/O) functions and ensure seamless operation of connected devices.

coming coming
Starting at
List Price
Web Price
Web Price:
List Price
Web Price
List Price is Lenovo’s estimate of product value based on the industry data, including the prices at which first and third-party retailers and etailers have offered or valued the same or comparable products. Third-party reseller data may not be based on actual sales.
Web Price is Lenovo’s estimate of product value based on industry data, including the prices at which Lenovo and/or third-party retailers and e-tailers have offered or valued the same or comparable products. Third-party data may not be based on actual sales.
Learn More
See More
See Less
View {0} Model
View {0} Models
Part Number:
See More
See Less
Great choice!
You may compare up to 4 products per product category (laptops, desktops, etc). Please de-select one to add another.
View Your Comparisons
Add To Cart
Add To Cart
We're sorry,
Products are temporarily unavailable.
Continue shopping
Learn More
Coming Soon
Featured Product
Top Deals of the Day
Oops! No results found. Visit the categories above to find your product.
open in new tab
© 2024 Lenovo. All rights reserved.
© {year} Lenovo. All rights reserved.
Compare  ()