Reasons why the motherboard socket changed

Have you ever resented buying a new CPU because you found that the CPU couldn’t be installed on your old motherboard with a different socket?

Hmm .. why is that so?

The first thing you need to know is that each pin on the CPU has a different function. There are pins that are used to transfer power to the CPU, some are used to transfer data, and each data pin is connected to a different motherboard BUS like PCIe, USB and another BUS. In the meantime, other pins are used as backup pins if one day the manufacturing CPU wants to perform other functions.

For example, AMD is using its replacement pins to add PCIe 4.0 support to the Zen 2 architecture. Faster bus paths for your system, e.g. For example, the new version of USB, which requires more pins for power and data transfer from the socket you’re using, requiring design changes to the socket. CENTRAL PROCESSOR. Then when you use an old socket for a new CPU with new features, power consumption can be a serious problem.

This is why Intel increased the number of pins on Intel 10th generation CPUs from 1151 to 1200 because these processors require more power. Adding more pins can solve the power supply problem, but it also requires the user to get a new motherboard. While many users feel at a disadvantage, manufacturers are also concerned when there are users installing new CPUs that use more power on the old motherboard.

This can cause serious problems for users as the power supply on older motherboards is not designed for processors with high TDP (Thermal Design Power). Therefore, when replacing a new socket, the motherboard manufacturer must change the design of their VRM (Voltage Regulator Module), which supports high levels of power consumption, rather than taking risks when users are faced with blue screen restrictions.

(Source: Techquickie)

This also applies to high-speed technologies such as RAM, USB, PCIe. The faster the technology, the greater the signal integrity. This means that the motherboard needs to be made more beautiful, e.g. B. by making the circuit board thicker with more layers to ensure that the bus speed is within specifications and to avoid interference. Some brands need to replace their motherboard socket according to the new CPU specification to make sure the CPU is compatible with the motherboard. This may not sound like intuitive, but in fact there is a convenience aspect to switching outlets. Chip manufacturers want to create upgrade levels for their users wherever possible.

(Source: Techquickie)

For example, a new CPU can be used on an old socket. Sometimes a BIOS update is required on the motherboard and the old processor to run. However, there are still many obstacles for users and chipmakers to know. You can choose to replace a new socket to reduce user confusion and frustration, especially with many mainstream users who don’t understand how to update the BIOS to use their new CPU.

AMD also had a similar problem with the ZEN 3 chipset controversy, as it initially promised that all Zen architecture CPUs could be used with all AM4 socket motherboards. However, the problem is that the Zen 1 architecture publishes a BIOS ROM chipset that is 16MB in size. This chip size is not enough to accommodate the new firmware needed because a chip with a large size has a higher price.

AMD did not want to remove BIOS support from the old chip, so they switched to a new chipset with a size of 32 MB. This happens because AMD listens to feedback from users who are experiencing BIOS update issues that result in their old CPUs being unusable on their motherboards because the chip size is too small to accommodate the entire AM4 Include CPU firmware. Therefore, obliging users to replace a new motherboard with a suitable socket is quite problematic as most consumers feel at a disadvantage.

Source: Techquickie
Editor: Salman