Appendix B: BIOS POST Codes

 

 

 

 

POST Code

Description

5Ch

Test RAM between 512 and 640 kB

60h

Test extended memory

62h

Test extended memory address lines

64h

Jump to UserPatch1

66h

Confi gure advanced cache registers

67h

Initialize Multi Processor APIC

68h

Enable external and CPU caches

69h

Setup System Management Mode (SMM) area

6Ah

Display external L2 cache size

6Bh

Load custom defaults (optional)

6Ch

Display shadow-area message

6Eh

Display possible high address for UMB recovery

70h

Display error messages

72h

Check for confi guration errors

76h

Check for keyboard errors

7Ch

Set up hardware interrupt vectors

7Dh

Initialize Intelligent System Monitoring

7Eh

Initialize coprocessor if present

80h

Disable onboard Super I/O ports and IRQs

81h

Late POST device initialization

82h

Detect and install external RS232 ports

83h

Confi gure non-MCD IDE controllers

84h

Detect and install external parallel ports

85h

Initialize PC-compatible PnP ISA devices

86h

Re-initialize onboard I/O ports.

87h

Confi gure Motherboard Confi gurable Devices (optional)

88h

Initialize BIOS Data Area

89h

Enable Non-Maskable Interrupts (NMIs)

8Ah

Initialize Extended BIOS Data Area

8Bh

Test and initialize PS/2 mouse

8Ch

Initialize fl oppy controller

8Fh

Determine number of ATA drives (optional)

90h

Initialize hard-disk controllers

91h

Initialize local-bus hard-disk controllers

92h

Jump to UserPatch2

93h

Build MPTABLE for multi-processor boards

95h

Install CD ROM for boot

96h

Clear huge ES segment register

97h

Fix up Multi Processor table

98h

1-2 Search for option ROMs. One long, two short

 

beeps on checksum failure

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SUPER MICRO Computer X6DH3-G2, X6DHi-G2 user manual Post Code Description

X6DH3-G2, X6DHi-G2 specifications

Super Micro Computer is renowned for its innovation in the server and workstation market, and the X6DH3-G2 and X6DHi-G2 motherboards are prime examples of their commitment to performance, reliability, and advanced technology. These motherboards are designed to cater to the demands of enterprise-level applications, offering robust support for a variety of workloads.

The X6DH3-G2 and X6DHi-G2 motherboards are based on the Intel E7501 chipset, supporting the Intel Xeon processor family. This allows for significant computing power, making them ideal choices for data-centric applications in various fields, from scientific research to database management. One of the standout features of these motherboards is their dual-processor capability, enabling users to harness the power of two Xeon CPUs simultaneously for enhanced multitasking and performance.

In addition to dual-processor support, both motherboards offer up to 64 GB of DDR2 ECC memory. This ensures data integrity and system stability, which are crucial in enterprise environments. The presence of ECC (Error-Correcting Code) memory allows these motherboards to automatically detect and correct data corruption, significantly reducing the risk of system crashes and data loss.

Storage capabilities are another highlight of the X6DH3-G2 and X6DHi-G2 motherboards. They come equipped with multiple SATA and SCSI interfaces, ensuring compatibility with various storage solutions. This flexibility allows users to configure their storage according to their specific needs, whether it be for high-speed access or large-capacity requirements. RAID (Redundant Array of Independent Disks) support is also integrated, enabling users to implement data redundancy and improve performance.

Networking features are robust, with integrated gigabit Ethernet that ensures high-speed connections and efficient data transfer. This is essential for applications demanding low latency and high bandwidth.

The layout of the X6DH3-G2 and X6DHi-G2 motherboards is designed for optimal thermal management and airflow, enhancing system longevity and reliability. They also support a range of expansion slots, including PCI Express, which allows for the addition of graphics cards and other advanced peripherals.

Super Micro’s commitment to quality is evident in these motherboards, showcasing reliability and a wealth of features that make them suitable for demanding enterprise environments. With a focus on performance, scalability, and stability, the X6DH3-G2 and X6DHi-G2 motherboards are engineered to meet the evolving challenges faced by IT professionals and organizations today.