Appendix B: BIOS POST Checkpoint Codes

Checkpoint

4Ch

4Dh

4Eh

4Fh

50h

51h

52h

53h

54h

57h

58h

59h

60h

62h

65h

66h

67h

7Fh

80h

81h

82h

83h

84h

85h

Code Description

The memory below 1 MB has been cleared via a soft reset. Clearing the memory above 1 MB next.

The memory above 1 MB has been cleared via a soft reset. Saving the memory size next. Going to checkpoint 52h next.

The memory test started, but not as the result of a soft reset. Displaying the first 64 KB memory size next.

The memory size display has started. The display is updated during the memory test. Performing the sequential and random memory test next.

The memory below 1 MB has been tested and initialized. Adjusting the displayed memory size for relocation and shadowing next.

The memory size display was adjusted for relocation and shadowing.

The memory above 1 MB has been tested and initialized. Saving the memory size information next.

The memory size information and the CPU registers are saved. Entering real mode next.

Shutdown was successful. The CPU is in real mode. Disabling the Gate A20 line, parity, and the NMI next.

The A20 address line, parity, and the NMI are disabled. Adjusting the memory size depending on relocation and shadowing next.

The memory size was adjusted for relocation and shadowing. Clearing the Hit <DEL> message next.

The Hit <DEL> message is cleared. The <WAIT...> message is displayed. Starting the DMA and interrupt controller test next.

The DMA page register test passed. Performing the DMA Controller 1 base register test next.

The DMA controller 1 base register test passed. Performing the DMA controller 2 base register test next.

The DMA controller 2 base register test passed. Programming DMA controllers 1 and 2 next.

Completed programming DMA controllers 1 and 2. Initializing the 8259 interrupt controller next.

Completed 8259 interrupt controller initialization.

Extended NMI source enabling is in progress.

The keyboard test has started. Clearing the output buffer and checking for stuck keys. Issuing the keyboard reset command next.

A keyboard reset error or stuck key was found. Issuing the keyboard controller interface test command next.

The keyboard controller interface test completed. Writing the command byte and initializing the circular buffer next.

The command byte was written and global data initialization has completed. Check- ing for a locked key next.

Locked key checking is over. Checking for a memory size mismatch with CMOS RAM data next.

The memory size check is done. Displaying a soft error and checking for a password or bypassing WINBIOS Setup next.

B-5

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SUPER MICRO Computer H8QM3-2 user manual Appendix B Bios Post Checkpoint Codes
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H8QM3-2 specifications

The Super Micro Computer H8QM3-2 is a cutting-edge server motherboard designed to meet the demanding needs of high-performance computing applications. Built upon the AMD Opteron architecture, it is tailored for enterprises seeking robust server capabilities with exceptional performance, reliability, and scalability.

One of the standout features of the H8QM3-2 is its support for dual AMD Opteron 6100 series processors. This allows for an impressive processing power that can handle resource-intensive tasks and demanding workloads. With a maximum supported RAM of 512GB via 16 DIMM slots, this motherboard can efficiently manage large datasets and applications that require substantial memory.

The H8QM3-2 also boasts a versatile I/O capabilities. It includes multiple PCI-E 2.0 slots to accommodate a variety of expansion cards, ensuring that businesses can customize their servers to meet specific requirements. The motherboard features up to six SATA III ports for enhanced data transfer speeds and reliable connectivity. These ports support both RAID 0 and RAID 1 configurations, which provide options for data redundancy and enhanced performance.

In terms of network connectivity, the H8QM3-2 integrates dual 1GbE ports, allowing for efficient data transmission and reliable networking. This integration is vital for servers that rely on continuous uptime and need to manage extensive network traffic.

Another significant advantage of the H8QM3-2 is its energy efficiency. Supermicro's commitment to green computing is evident in this motherboard's design, which balances performance and power consumption. Organizations can benefit from reduced operational costs while still enjoying high-performance capabilities.

The H8QM3-2 is also designed with advanced thermal management technology. It features dedicated cooling zones and support for multiple fans to ensure that components remain at optimal temperatures, thus prolonging their lifespan and maintaining performance standards.

Security features are paramount in server technology, and the H8QM3-2 does not disappoint. Its support for hardware-based security features helps protect sensitive data and integrity against various threats.

In summary, the Super Micro Computer H8QM3-2 motherboard stands out in the realm of server solutions. With its support for dual AMD Opteron processors, extensive memory capacity, versatile I/O options, energy efficiency, and advanced thermal management, it is an excellent choice for businesses looking to upgrade their server infrastructure while maximizing performance and reliability.
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