Mainboard D2156

PCI bus interrupts - Selecting correct PCI slot

Extensive information on this section is contained in the manual "Basic information on mainboard".

To achieve optimum stability, performance and compatibility, avoid the multiple use of ISA i IRQs or PCI IRQ Lines (IRQ sharing). Should IRQ sharing be unavoidable, then all

involved devices and their drivers must support IRQ sharing.

Which ISA IRQs are assigned to the PCI IRQ Lines is normally automatically specified by the BIOS (see "BIOS Setup" description).

Monofunctional expansions cards

PCI/PCI Express expansion cards require a maximum of one interrupt, which is called the PCI interrupt INT A. Expansion cards that do not require an interrupt can be installed in any desired slot.

Multifunctional expansion cards or expansion cards with integrated PCI-PCI bridge

These expansion cards require up to four PCI interrupts: INT A, INT B, INT C, INT D. How many and which of these interrupts are used is specified in the documentation provided with the card.

The assignment of the PCI interrupts to the IRQ Lines is shown in the following table:

 

 

 

 

 

 

 

 

 

 

 

 

Controller or slot INT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mechanical slot

 

 

 

 

 

 

 

 

On board controller

 

 

 

 

 

 

1

 

2

 

3

4

5

 

6

7

 

PCI

 

USB 1.1

 

 

USB 2.0

 

 

SMBus

 

 

HD Audio

 

 

LAN

 

 

 

PCIe

 

 

PCI

 

 

 

INT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LINE

1st

2nd

 

3rd

4th

 

 

 

 

 

 

 

 

x16

 

x1

 

x1

1

2

 

3

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

(A)

-

-

-

-

-

 

-

 

 

X

 

X

A

 

D

 

B

-

-

 

-

-

 

2 (B)

-

-

-

-

-

 

-

 

-

 

-

 

B

 

A

 

C

-

-

 

-

-

 

3

(C)

-

-

-

-

-

 

-

 

-

 

-

 

-

 

B

 

D

D

C

 

A

D

 

4

(D)

-

-

-

-

-

 

 

X

-

 

-

 

-

 

C

 

A

C

D

 

B

A

 

5

(E)

-

-

-

X

-

 

-

 

-

 

-

 

-

 

-

 

-

-

-

 

-

-

 

6

(F)

-

-

 

X

-

-

 

-

 

-

 

-

 

-

 

-

 

-

B

A

 

C

B

 

7

(G)

-

X

-

-

-

 

-

 

-

 

-

 

-

 

-

 

-

A

B

 

D

C

 

8

(H)

X

-

-

-

 

X

-

 

-

 

-

 

-

 

-

 

-

-

-

 

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use first PCI/PCI Express slots that have a single PCI IRQ Line (no IRQ sharing). If you must use another PCI/PCI Express slot with IRQ sharing, check whether the expansion card properly supports IRQ sharing with the other devices on this PCI IRQ Line. The drivers of all cards and components on this PCI IRQ Line must also support IRQ sharing.

4 - English

A26361-D2156-Z110-1-8N19, edition 2

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Fujitsu D2156 manual PCI bus interrupts Selecting correct PCI slot, Monofunctional expansions cards
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D2156 specifications

The Fujitsu D2156 is a high-performance server motherboard designed for enterprise applications that require reliability, flexibility, and scalability. Tailored for use in various server configurations, the D2156 is particularly known for its robust design and cutting-edge technologies, making it a staple in data centers and business environments.

One of the standout features of the Fujitsu D2156 is its support for the latest Intel Xeon processors, which provide enhanced performance and energy efficiency. The motherboard supports multiple CPU configurations and can handle substantial workloads due to its dual socket design. This allows organizations to scale their processing capabilities according to their needs, making it a valuable tool for handling demanding applications such as data analytics, virtualization, and cloud computing.

The D2156 is equipped with up to 1 TB of DDR4 RAM, providing significant memory bandwidth and speed. This high memory capacity facilitates advanced multitasking and improves overall system responsiveness, which is crucial for mission-critical applications. Additionally, the support for ECC memory ensures data integrity, preventing system crashes due to memory errors.

In terms of connectivity, the Fujitsu D2156 offers a variety of I/O options, including multiple PCIe slots for additional expansion cards such as graphics cards, RAID controllers, and high-speed network interfaces. This flexibility ensures that businesses can customize their server configurations based on specific operational requirements.

The D2156 also includes advanced storage options, supporting several SATA and NVMe interfaces. This allows for fast data access and transfer rates, which is essential for applications that demand rapid data processing. The ability to configure different storage solutions provides businesses with the versatility to optimize their infrastructure for performance and redundancy.

Security is paramount in today’s digital landscape, and the Fujitsu D2156 supports various built-in security features, including TPM (Trusted Platform Module) and hardware-based security measures. These features help safeguard sensitive data and protect against unauthorized access, making it suitable for industries that handle confidential information.

Lastly, the D2156 is designed for efficient thermal management, featuring an optimized layout that promotes better airflow. This thermal efficiency contributes to the longevity of components and reduces operational costs associated with cooling.

Overall, the Fujitsu D2156 is a powerful and versatile motherboard that meets the demanding needs of modern enterprise environments. Its combination of processing power, memory capacity, expansion flexibility, and integrated security features make it an excellent choice for organizations looking to enhance their IT infrastructure.
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