POST Codes

 

TABLE A-1contains descriptions of each of the POST codes, listed in the same order

 

in which they are generated. These POST codes appear as a four-digit string that is a

 

combination of two-digit output from primary I/O port 80 and two-digit output

 

from secondary I/O port 81. In the POST codes listed in TABLE A-1, the first two

 

digits are from port 81 and the last two digits are from port 80.

TABLE A-1 POST Codes

 

 

Post Code

Description

 

 

00d0

Coming out of POR, PCI configuration space initialization, enabling 8111’s SMBus.

00d2

Disable cache, full memory sizing, and verify that flat mode is enabled.

00d3

Memory detections and sizing in boot block, cache disabled, IO APIC enabled.

01d4

Test base 512KB memory. Adjust policies and cache first 8MB.

01d5

Bootblock code is copied from ROM to lower RAM. BIOS is now executing out of RAM.

01d6

Key sequence and OEM specific method is checked to determine if BIOS recovery is

 

forced. If next code is E0, BIOS recovery is being executed. Main BIOS checksum is tested.

01d7

Restoring CPUID; moving bootblock-runtime interface module to RAM; determine

 

whether to execute serial flash.

01d8

Uncompressing runtime module into RAM. Storing CPUID information in memory.

01d9

Copying main BIOS into memory.

01da

Giving control to BIOS POST.

0004

Check CMOS diagnostic byte to determine if battery power is OK and CMOS checksum is

 

OK. If the CMOS checksum is bad, update CMOS with power-on default values.

00c2

Set up boot strap processor for POST. This includes frequency calculation, loading BSP

 

microcode, and applying user requested value for GART Error Reporting setup question.

00c3

Errata workarounds applied to the BSP (#78 & #110).

00c6

Re-enable cache for boot strap processor, and apply workarounds in the BSP for errata

 

#106, #107, #69, and #63 if appropriate.

00c7

HT sets link frequencies and widths to their final values.

000a

Initializing the 8042 compatible Keyboard Controller.

000c

Detecting the presence of Keyboard in KBC port.

000e

Testing and initialization of different Input Devices. Traps the INT09h vector, so that the

 

POST INT09h handler gets control for IRQ1.

8600

Preparing CPU for booting to OS by copying all of the context of the BSP to all application

 

processors present. NOTE: APs are left in the CLI HLT state.

 

 

Appendix A Event Logs and POST Codes

31

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Sun Microsystems X4140, X4240, X4440 manual Post Codes
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X4140, X4440, X4240 specifications

Sun Microsystems was a prominent player in the computing industry, known for its innovative and powerful server systems. Among its notable offerings were the Sun Fire X4240, X4440, and X4140 servers, which made significant inroads in the market for high-performance computing solutions.

The Sun Fire X4240 server was designed to meet the demands of data-intensive applications. It offered impressive scalability, supporting up to 64 GB of DDR2 memory across its eight memory slots. This server utilized AMD Opteron processors, which provided excellent performance thanks to their multi-core architecture. The X4240 also featured a flexible I/O architecture, allowing for various configurations tailored to specific workload requirements.

Next in line was the Sun Fire X4440, which expanded on the capabilities of the X4240. This server was particularly valuable for virtualization and consolidation tasks. It featured up to 128 GB of memory and supported more CPU options, with dual- and quad-core Opteron processors available. The X4440 also included a high-density design that enabled increased storage capacity, accommodating up to 12 SFF drives. This made it ideal for databases and enterprise applications needing fast access to large volumes of data.

Finally, the Sun Fire X4140 brought a balance of performance and efficiency. Like its counterparts, it supported AMD's Opteron processors, delivering robust processing power. The X4140 was designed for environments where space and power efficiency were critical. It was notable for its compact form factor, which allowed organizations to pack more servers into less physical space without sacrificing performance. The server architecture included advanced thermal management technologies, ensuring optimal airflow and cooling, which contributed to reliability in demanding environments.

In terms of connectivity, all three servers featured multiple Gigabit Ethernet ports, offering redundant network connectivity essential for enterprise-level applications. The integrated management interfaces simplified server monitoring and maintenance, ensuring that IT administrators could efficiently manage their resources.

In summary, the Sun Fire X4240, X4440, and X4140 were pivotal servers from Sun Microsystems that provided robust performance, scalability, and efficiency. Their features made them suitable for a variety of workloads, from virtualization to data management, cementing their place in the server market during their era.
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