Intel Core 2 Duo, Q35 Express user manual Post Codes Definitions, Normal Post Codes

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Intel Core 2 Duo Processor and Intel Q35 Express Chipset—Setting Up and Configuring the Development Kit

Figure 24. 2x12 Standard power supply and 2x2 power supply

Power-on button

2x12 Standard power supply

2x2 Standard power supply

3.5Post Codes Definitions

The CRB BIOS writes progress and error codes to Port 80 during POST. These codes are defined below.

3.5.1Normal Post Codes

Uncompressed INIT code checkpoints

Before D1 – Early chipset and SIO initialization. NMI disabled.

D1

Perform keyboard controller BAT test. Save power-on CPUID to

 

scratch CMOS.

D0

Go to flat mode with 4GB limit. Start checksum verification.

D2

Disable cache and begin sizing full memory array.

D3

Additional chipset initialization, re-enable cache.

D4

Test base 512 MB of memory, adjust policies and cache first 8

 

MB.

D5

Bootblock code copied from ROM to lower system memory. BIOS

 

now executes out of RAM.

D6

Check for recovery mode and verify main BIOS checksum.

If either in recovery mode or main BIOS checksum is bad, go to check point E0 else goto checkpoint D7.

Intel® CoreTM 2 Duo Processor and Intel ® Q35 Express Chipset Development Kit

 

User’s Manual

October 2007

32

Order Number: 318476001US

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Contents User’s Manual OctoberOrder Number 318476-001US Contents Tables Jumpers Description USB Front Panel 1394a HeaderDate Revision Description 001 Initial releaseContent Overview Text ConventionsTerm Description Glossary of Terms and AcronymsDefinition Sheet 1 Support Options Product LiteratureElectronic Support Systems Additional Technical SupportIntel Literature Centers Development Kit Hardware Features Intel Q35 Express Chipset Development Kit OverviewSystem Block Diagram Board FeaturesDevelopment Kit Inventory Checklists Development Kit Hardware ItemsDevelopment Kit Board Specification Technology Features/support Reference DocumentationInternal I/O headers Supported Intel Technologies Sheet 1Additional Features Processor SupportSystem Memory Supported Intel Technologies Sheet 2Dual Channel Interleaved Mode Configurations Illustrates the memory channel and Dimm configurationDual Channel Interleaved Mode Configuration with 2x DIMMs Single Channel Asymmetric Mode Configurations Dual Channel Interleaved Mode Configuration with 4x DIMMsThis audio jack is use for microphone input Back-Panel ConnectorsAudio-Connectors 2 RJ-45 LAN Connector with Integrated LEDs Coaxial S/PDIF In/Out ConnectorUSB port supports the USB 1.1/2.0 specification USB PortDebug Features Power LEDsExtended Debug Probe XDP Port 80 Post Code LEDsDevelopment Kit Major Connectors and Jumpers Voltage ReferenceVoltage Reference detail Voltage Rail Expected VoltageJumper Functions USB 2.0 Front Panel3 1394a Header USB Front PanelSPI Removal / Installation Technique HeaderSPI Device Installation SPI Device RemovalClose the cover Place the fresh IC intoInstalling Board Standoffs OverviewMounting Hole Locations BTX Heatsink Setup with SRM SRM Alignment on any BTX BoardBTX board alignment on SRM Board Setup and Configuration before Boot Tightening Heatsink on the SRM and BoardCPU Fan location Post Codes Definitions Normal Post CodesRestore Cpuid value to register. Bootblock runtime module Main Bios runtime code is to be decompressedCopy main Bios into system memory Disable Atapi hardware. Jump back to checkpoint E9Early CPU Init Start. Disable cache and init local Apic Set up boot strap processor informationSet up boot strap processor for Post Enumerate and set up application processorsInitialize IPL devices controlled by Bios and option ROMs Generate and write contents of Escd in NvramLog errors encountered during Post Display errors and prompt for user responseOrder Number 318476001US

Q35 Express, Core 2 Duo specifications

The Intel Core 2 Duo is a line of dual-core processors that was introduced by Intel in 2006. It represented a significant advancement in semiconductor design, offering improved performance and efficiency over its predecessors. The Core 2 Duo processors were built on Intel's 65nm manufacturing process and later transitioned to a 45nm process, allowing for higher clock speeds and lower power consumption.

One of the main features of the Core 2 Duo is its dual-core architecture. This allows the processor to handle multiple tasks simultaneously, enhancing multitasking capabilities. It is equipped with features such as Intel's Smart Cache, which optimizes the efficiency of memory usage by allowing both cores to access the cache. The processors also support Intel's Enhanced SpeedStep technology, which dynamically adjusts voltage and frequency according to workload, contributing to energy savings.

In terms of performance, the Core 2 Duo is capable of delivering high processing power for a wide range of applications, from everyday computing tasks to more demanding workloads like multimedia editing. The architecture supports 64-bit processing, enabling the use of more than 4GB of RAM, a significant improvement for performance-intensive applications.

The Q35 Express chipset complemented the Core 2 Duo processors, offering enhanced graphics capabilities through Intel's GMA X3100 integrated graphics. This chipset supports various technologies, including Intel vPro, which provides manageability features for enterprise users and enhances security. The Q35 Express also facilitates support for Intel’s Active Management Technology, allowing IT departments to remotely manage computers, even when powered off.

Furthermore, the Q35 Express chipset supports numerous connectivity and expansion options. It includes support for Intel High Definition Audio, providing a high-quality audio experience, and offers multiple PCI Express lanes for graphics and other expansion cards. The chipset supports up to 8 USB ports and SATA interface for connecting storage devices, making it well-suited for both consumer and business applications.

Overall, the Intel Core 2 Duo processors, along with the Q35 Express chipset, provide a robust and reliable platform suitable for a variety of uses. Their combination of dual-core performance, energy efficiency, and enhanced graphics support ensures that they continue to be relevant for many users well beyond their initial launch.