MS-7255 Mainboard

Power Supply

ATX 24-Pin Power Connector: JPWR2

This connector allows you to connect an ATX 24-pin power supply. To connect the ATX 24-pin power supply, make sure the plug of the power supply is inserted in the proper orientation and the pins are aligned. Then push down the power supply firmly into the connector.

You may use the 20-pin ATX power supply as you like. If you’d like to use the 20-pin ATX power supply, please plug your power sup- ply along with pin 1 & pin 13 (refer to the image at the right hand). There is also a foolproof design on pin 11, 12, 23 & 24 to avoid wrong installation.

JPWR2 Pin Definition

pin 13

pin 12

24

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PIN

SIGNAL

PIN

SIGNAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

+3.3V

13

+3.3V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

+3.3V

14

-12V

 

 

 

 

JPWR2

3

GND

15

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

+5V

16

PS-ON#

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

5

GND

17

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

6

+5V

18

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

GND

19

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

PWROK

20

Res

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

5VSB

21

+5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

+12V

22

+5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

+12V

23

+5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

NC

24

GND

ATX 12V Power Connector: JPWR1

This 12V power connector is used to provide power to the CPU.

JPWR1

1

3

2

4

JPWR1 Pin Definition

PIN

SIGNAL

1GND

2GND

312V

412V

Important

1.Maker sure that all the connectors are connected to proper ATX power sup- plies to ensure stable operation of the mainboard.

2.Power supply of 350 watts (and above) is highly recommended for system stability.

3.ATX 12V power connection should be greater than 18A.

2-8

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MSI MS-7255 manual Power Supply, ATX 24-Pin Power Connector JPWR2, ATX 12V Power Connector JPWR1

MS-7255 specifications

The MSI MS-7255, also known as the MSI K8N Neo4, is a versatile motherboard that has gained attention for its robust features, compatibility, and performance capabilities. Designed to support AMD's Socket 939 processors, the MS-7255 caters to users looking for a reliable platform for both gaming and everyday computing tasks.

One of the standout features of the MSI MS-7255 is its support for high-performance memory. With four DDR DIMM slots, the motherboard can accommodate up to 4GB of DDR400 RAM, allowing for fast data processing and multitasking capabilities. This memory configuration can significantly enhance overall system responsiveness, making it ideal for power users and gamers who demand excellent performance.

The MS-7255 is also equipped with NVIDIA's nForce 4 chipset, which brings significant advantages in terms of connectivity and performance. This chipset supports PCI Express, offering users the ability to install next-generation graphics cards that utilize the PCIe x16 interface, paving the way for superior graphics performance in gaming and graphic-intensive applications.

In terms of storage, the MSI MS-7255 features an impressive array of SATA ports. With up to four SATA II 3.0 Gb/s connectors, users can easily set up RAID configurations for improved data redundancy or performance. This flexibility is particularly appealing to gamers and content creators looking for faster load times and better system performance.

The motherboard also includes integrated 8-channel audio, courtesy of Realtek, providing users with high-quality sound output without the need for additional audio cards. This feature enhances the multimedia experience, making it suitable for movies, music, and gaming environments.

Connectivity options abound with the MSI MS-7255, featuring built-in Ethernet and multiple USB ports for peripheral connections. These ports enrich the user experience, allowing easy access to a range of external devices, from printers to game controllers.

In terms of user-friendly features, the MS-7255 boasts a well-designed BIOS, allowing users to easily tweak system settings for optimal performance. The board's layout also facilitates ease of installation and accessibility to components, which is a crucial factor for DIY builders.

Overall, the MSI MS-7255 is a compelling choice for users seeking a reliable, feature-rich motherboard. Its blend of performance, connectivity, and audio capabilities make it a worthy consideration for anyone looking to build a powerful and efficient system. With its ability to support the demands of both gamers and general users alike, the MS-7255 proves to be an enduring option in the motherboard market.