Block Diagram

1 PCI Express x16

1 PCI Express x8

PCIe CLK (100 MHz)

PCIe CLK

(100 MHz)

PCI Express x16

PCI Express x8

LGA775

 

 

 

 

 

CPU CLK+/-

 

 

(400/333/266/200 MHz)

 

Processor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Host

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Interface

DDR2 1366/1066/800/667 MHz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Intel®

 

 

 

 

 

Dual Channel Memory

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P45

 

 

 

 

 

 

 

 

 

 

 

 

MCH CLK (400/333/266/200 MHz)

 

 

 

 

 

 

3 PCI Express x1

PCIe CLK (100 MHz)

x 1 x 1 x 1

LAN2 LAN1

RJ45 RJ45

RTL

RTL

8111C

8111C

x 1

x 1

Dual BIOS

6 SATA 3Gb/s

PCI Express Bus

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 SATA 3Gb/s

 

 

 

 

GIGABYTE

 

 

ATA-133/100/66/

 

 

 

 

 

SATA2

 

 

 

 

 

 

 

 

33 IDE Channel

 

 

 

 

 

 

 

 

 

 

 

 

PCI Bus

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TSB43AB23

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3 IEEE 1394a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SpeakerOut SpeakerOut SpeakerOut

 

 

 

 

 

 

 

 

 

 

 

 

 

Surround Center/Subwoofer Side

 

 

 

 

 

 

 

(33 MHz)

 

2 PCI

 

 

 

 

 

 

 

 

 

 

 

PCI CLK

Intel® ICH10R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12 USB Ports

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LPC

Bus

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Floppy

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IT8718

 

LPT Port

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CODEC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COM Port

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PS/2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KB/Mouse

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TPM (Note)

 

 

MIC LineOut- LineIn- SPDIFIn SPDIFOut

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Note) This feature is optional due to different regional policy.

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Gigabyte GA-EP45-UD3P user manual Block Diagram

GA-EP45-UD3P specifications

The Gigabyte GA-EP45-UD3P is a motherboard that gained popularity for its superb balance of performance, features, and price, particularly catering to enthusiasts, gamers, and mainstream PC users. Launched in the late 2000s, it is built on the Intel P45 chipset, making it compatible with Intel's Core 2 Duo, Core 2 Quad, Pentium, and Celeron processors, providing a versatile foundation for various computing needs.

One of the standout features of the GA-EP45-UD3P is its excellent support for overclocking. The motherboard comes equipped with robust voltage regulation, providing stability when pushing CPUs beyond their standard clock speeds. Additionally, its user-friendly BIOS includes extensive options for adjusting CPU and memory settings, making it an appealing choice for those looking to maximize performance.

The GA-EP45-UD3P supports DDR2 memory up to 1200 MHz, and it features four DIMM slots for dual-channel memory configuration, facilitating high memory capacities and bandwidth. With a total of 16 USB 2.0 ports and a pair of IEEE 1394 FireWire ports, connectivity is abundant, ensuring that users can connect multiple peripherals without issue.

In terms of storage, the motherboard offers six SATA ports with RAID support, allowing for flexible configurations ranging from data redundancy to performance enhancements. Furthermore, it also includes one IDE connector, which provides compatibility with legacy devices.

Another key characteristic of the GA-EP45-UD3P is its durable construction, incorporating Gigabyte's Ultra Durable technology. This includes high-quality capacitors, solid capacitors, and a 4-layer PCB design that enhances thermal performance and reliability. The motherboard is also equipped with an advanced thermal management system that features enlarged heatsinks for effective cooling, ensuring that thermal throttling doesn't hinder performance.

For audio, the GA-EP45-UD3P features a Realtek ALC889a audio codec offering eight-channel sound output, delivering a rich audio experience for gaming and multimedia applications.

In summary, the Gigabyte GA-EP45-UD3P stands out with its robust overclocking capabilities, ample connectivity options, extensive storage support, and durable construction, making it a solid choice for those building a powerful and reliable system. Whether for intensive gaming, content creation, or general computing, this motherboard provides a well-rounded performance that still resonates with tech enthusiasts today.