Desktop Board Features

Intel® 82845E Memory Controller Hub (MCH)

The MCH provides the processor, system memory, AGP, and hub interfaces in the

Intel 845E chipset platform. Features on Desktop Boards D845EPT2 and D845EBG2 include:

Single processor support with 533/400 MHz data transfer rate

Designed to support up to 2 GB (with 512 Mbit technology) DDR SDRAM at 266/200 MHz operation

NOTE

512 Mbit technology has not been validated on these boards.

1.5 V AGP interface with 4X Side Band Addressing (SBA)/data transfer and 2X and 4X fast write

Intel® 82801DB I/O Controller Hub (ICH4)

The Intel 82801DB I/O Controller Hub integrates many I/O functions and provides the I/O subsystem with access to the rest of the platform. ICH4 features on Desktop Boards D845EPT2 and D845EBG2 include:

Integrated IDE controller supports two Ultra DMA-33 and ATA-66/100 channels, and PIO modes

SMBus interface

FWH interface

Low Pin Count (LPC) interface

AC’97 2.1 compliant link for audio and telephony codecs

Integrated Intel 82562ET 10/100 Mbit/sec Platform LAN Connect (PLC) device for interfacing the ICH4 LAN connect interface to LAN connect component

Three UHCI and one ECHI compliant host controllers supporting up to six USB ports

Firmware Hub (FWH)

The 4 Mbit Firmware Hub has these features:

System BIOS

System security and management logic

Input/Output (I/O) Controller

The SMSC LPC47M102S ultra I/O controller features the following:

Low pin count (LPC) interface

Two serial ports (one via an Intel desktop board header)

One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port (EPP) support

Serial IRQ interface compatible with serialized IRQ support for PCI systems

PS/2-style mouse and keyboard interfaces

Interface for one 1.2 MB, 1.44 MB, or 2.88 MB floppy drive

Intelligent power management, including a programmable wake up event interface

PCI power management support

Two fan tachometer inputs

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Intel D845EBG2 Input/Output I/O Controller, Intel 82845E Memory Controller Hub MCH, Intel 82801DB I/O Controller Hub ICH4

D845EBG2, D845EPT2 specifications

The Intel D845EBG2 and D845EPT2 are part of Intel's 845 chipset family, designed primarily for desktop platforms in the early 2000s. Both motherboards catered to a performance-focused market segment, prominently supporting Intel’s Pentium 4 processors through the Socket 478 interface. The D845EBG2 and D845EPT2 are especially noted for their balance of features, affordability, and reliability, making them appealing options for both gaming enthusiasts and regular desktop users during their time.

The D845EBG2 motherboard is distinguished by its support for Intel’s Quad Data Rate (QDR) memory technology, which enabled faster data throughput by allowing more data to be transferred in a given time frame. This motherboard supported dual-channel DDR SDRAM with a maximum capacity of 2GB, providing users with improved memory performance vital for multitasking and memory-intensive applications.

On the other hand, the D845EPT2 also offered similar capabilities but placed a particular emphasis on integrating additional connectivity options. With AGP 4X support, it allowed users to install high-performance graphics cards, which was essential for gaming and graphics processing tasks. Both boards featured multiple PCI slots, ensuring compatibility with a variety of expansion cards for enhanced functionality.

In terms of storage capabilities, both motherboards supported Ultra ATA/100 hard drives, which improved data transfer speeds compared to previous standards. They also included integrated audio, providing 6-channel sound capabilities, which delivered an immersive multimedia experience without requiring additional sound cards.

The technologies implemented in both motherboards included Intel’s Advanced Digital Media Boost for enhanced processing capabilities in multimedia applications, as well as Enhanced Intel SpeedStep technology, which allowed for dynamic adjustment of the processor’s voltage and frequency, optimizing power consumption and thermal output.

Overall, the Intel D845EBG2 and D845EPT2 motherboards were notable for their robust performance, diverse connectivity options, and support for evolving technologies of the time. They left a significant imprint in the landscape of early 2000s computing, providing essential features that catered to both casual users and more demanding computing environments. With their reliability and solid feature set, these motherboards contributed to a range of applications and use cases that defined desktop computing during that era.