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Gigabyte GA-EP45T-EXTREME P45 Motherboard E-mail
Reviews - Featured Reviews: Motherboards
Written by Olin Coles   
Tuesday, 05 August 2008
Table of Contents: Page Index
Gigabyte GA-EP45T-EXTREME P45 Motherboard
Intel P45 Specifications
GA-EP45T-EXTREME Unique Features
Advanced Dynamic Energy Saver
Closer Look: GA-EP45T-EXTREME
Component Layout
Motherboard Testing Methodology
PCMark05 System Tests
PCMark Vantage System Tests
World in Conflict Results
Crysis Benchmark Comparison
Power Consumption Results
Intel P45 Express Final Thoughts
Gigabyte GA-EP45T-EXTREME Conclusion

Intel P45 Express Features

Gigabyte has gone to great lengths to avoid having their GA-EP45T-EXTREME from becoming "just another" P45 motherboard. In addition to all of the major features and specifications you hear about, such as the front side bus and system memory support, Gigabyte also adds in some very valuable features of their own.

  • Supports Intel Core 2 multi-core 45nm processors.
  • 1600 MHz FSB (Front Side Bus) support.
  • DDR3 1900 memory with Intel XMP technology enables new levels of memory performance.
  • High quality CPU power module with Ferrite Core Chokes, Lower RDS (on) MOSFETs and Lower ESR Solid Capacitors.
  • Unique thermal design featuring all copper Hybrid Silent-Pipe
  • Japanese manufactured SMD All Solid Capacitor motherboard design.
  • Supports ATI CrossFireX for extreme gaming performance.
  • Features SATA-II 3 Gb/s with Quad eSATA 2 interface.
  • Realtek ALC889A with DTS Connect enables high quality Full Rate Lossless Audio and support for both Blu-ray and HD DVD.
  • Quad BIOS for an extended level of protection.
  • Quad-Triple Phase Power Design for ultimate system stability.
  • Dual Gigabit Ethernet LAN with Teaming functionality.
  • Certified for Microsoft Vista Operating Systems.


Designed for ultimate flexibility, Intel XMP-based platforms offer major advantages for pro gamers, novices, and everyone in between. With predefined and certified memory optimizations built into Intel XMP, overclocking on Intel technology-based PCs is easy right out of the box. Expert users still have the option of manually changing specific parameters for more aggressive "I'll do it myself thanks" tuning.

GA-EP45T-EXTREME Specifications

Northbridge: Intel P45 Express Chipset
  • LGA775 Intel Core 2 Extreme/ Core 2 Quad/ Core 2
  • Supports 1600/1333/1066/800 MHz FSB
Southbridge: Intel ICH10R Southbridge
  • 6 x SATA 3.0Gbps interface
  • Intel Matrix Storage Technology
  • Support AHCI controller with SATA RAID 0, RAID 1, RAID 5 and RAID 10
PATA: iTE IT8213 chipset
  • 1 x Ultra ATA 33/66/100/133 (data transfer rate up to 133MB/sec.)

Texas Instruments TSB43AB23 IEEE 1394 controller
2x Realtek 8111C PCIe Gigabit Ethernet
7.1 (8-Channel) Realtek ALC889A Audio controller

Supports DDR3 1900 (OC)/1600/1066/800/667 MHz memory
Dual Channel architecture supports up to 16GB by 4 DIMM slots

Expansion Slots
2x PCI Express 2.0 slots - configured as one x16 or two x8 slots
1x PCIe 4x slot
1x PCIe 1x slot
3x PCI slots, PCI 2.3 compliant

Form Factor
ATX form factor, 305 x 244mm (12" x 9.6")

I/O Connectors
1x Floppy connector
1x Ultra ATA IDE connector
6x SATA connectors
12x USB 2.0 ports (8 x rear, 4 x header)
3x FireWire-400 ports (3 x header)
2x RJ45 LAN ports
8-Channel Audio I/O ports
1x Optical S/PDIF Output
1x Coaxial S/PDIF Output
1x Clear CMOS switch
1x PS/2 keyboard port
1x PS/2 mouse port

Intel XMP (Extreme Memory Technology)

Intel Extreme Memory Technology provides a simple and robust high performance, DDR3 based memory solution for Intel based platforms. Users can choose from preset optimized memory configurations or manually adjust memory timing parameters to fine-tune memory performance.

  • Adjust memory performance based on computing need.
  • Boost memory performance for intense gaming sessions.
  • Standard configuration for everyday computing.



Multiple SPD profiles

Enables preset or user defined memory profiles that can be selected depending on usage model. For example, an aggressive low latency profile could be used during intense gaming while the default memory setting can be used for everyday home computing, such as home office or web browsing.

Memory vendor specific SPD fields

Enables memory module suppliers to program their own capabilities and provide unique value to end users.

Easy overclocking (novice)

Enables end users to easily overclock their platforms by selecting the appropriate profile, instead of adjusting individual parameters in BIOS. Reselecting the default profile resets the platform to default setting.

Advanced overclocking (intermediate/expert users)

Expert users can manually change specific SPD parameters in the BIOS and save the profiles (Platform/BIOS specific).

Fail-safe default boot

"First boot" with default JEDEC setting on a platform that supports DDR3 standard JEDEC specification (your standard DDR3 memory frequencies), ensuring base functionally. Then user can enter BIOS and manually change settings, or use the windows based Intel Extreme Tuning Utility.

Extreme memory for power-packed performance tuning.
Overclocking masters, meet your memory. There's a new solution on the block designed to make the most hardcore Intel CoreTM2 Extreme processor-based PCs even more powerful. Introducing the Intel Extreme Memory Profiles (Intel XMP), a rockin' and easy-to-use, high-performance DDR3 memory overclocking solution.

Looking for that extra boost? Add this to your arsenal.
Intel XMP is a performance-packed expansion of the standard DDR3 memory specification, enabling a robust, overclocking solution designed to take advantage of the mega-gaming features built into Intel technology-based PCs. If you like to overclock and squeeze every possible ounce of performance from your PC, memory based on Intel XMP is the solution you need to make overpowering your opposition look easy.

EDITORS NOTE: Benchmark Reviews has also published the article DDR3 RAM: System Memory Technology Explained.


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