Gigabyte GA-EP45T-UD3LR LGA775 motherboard review

Alan Lu
26 Mar 2010
Gigabyte GA-EP45T-UD3LR LGA775 motherboard
Our Rating 
Price when reviewed 
inc VAT

Gigabyte's GA-EP45T-UD3LR is a well-equipped, but expensive LGA775 motherboard.



LGA775, ATX, Intel P45 chipset, supports: Celeron Dual Core, Pentium Dual Core, Core 2 Duo, Core 2 Quad, Core 2 Extreme

Gigabyte's GA-EP45T-UD3LR is a full-size ATX motherboard, so it has plenty of ports and slots. It can accommodate up to 16GB of DDR3 memory thanks to its four RAM slots. Few people will want this much, if only because 4GB modules are currently exorbitantly expensive.

There's no shortage of ports for connecting storage devices. There are six SATA ports and the built-in RAID controller allows you to create a RAID 0,1, 5 or 10 array. There are eight USB ports and four USB headers that can be turned into ports using backplates, so you could connect up to 12 USB peripherals in total without resorting to hubs.

PCI Express x1 peripherals aren't particularly common compared to their PCI counterparts, so most motherboards have more PCI slots than PCI Express x1 slots. The GA-EP45T-UD3LR reverses this trend and has four PCI Express x1 slots and just two PCI slots. The graphics card slot is squeezed in between the RAM slots and the Southbridge chip, so fitting a particularly chunky graphics card could be troublesome.

The GA-EP45T-UD3LR has a frontside bus speed of 400MHz quad pumped to 1,600MHz. None of the LGA775 processors still widely available use this external bus speed though, so this isn't an advantage over other motherboards which have a slower effective frontside bus speed of 1,333MHz.

Gigabyte's GA-EP45T-UD3LR has plenty of slots and ports, but at £106, it's expensive for a LGA775 motherboard. If you have this much money to spend, you're better off building a new PC around an LGA1156 board which will cost less and have more future upgrade potential.

Basic Specifications

Processor socketLGA775
Form factorATX
Processor supportCeleron Dual Core, Pentium Dual Core, Core 2 Duo, Core 2 Quad, Core 2 Extreme
Processor external bus400MHz (1,600MHz quad-pumped FSB)
Chipset north bridgeIntel P45
Chipset south bridgeIntel ICH10R
Passively-cooled north bridgeyes
Integrated graphicsNo
Supported memory typeDDR3 800/1066/1333/2200
Maximum memory speedPC3-17600
Memory slots4
Maximum memory16GB
Dual-channel supportyes

Buying Information


Internal Ports

Power connectors1x 24-pin ATX, 1x 4-pin ATX
PCI-E x16 slots1
Dual graphics architecturenone
PCI-E x4 slots0
PCI-E x1 slots4
PCI slots2
Fan headers3
Floppy ports1
IDE ports1
Serial ATA ports6
RAID chipset (max disks)Intel ICH10R (6x SATAII, RAID 0, 1, 5, 10)


Wired network ports1x 10/100/1000
Sound (ports)Realtek ALC888 (optical and coaxial S/PDIF, 6x analogue out)
USB2 ports / headers8/4
Firewire ports / headers0/0
Legacy ports2x PS/2
Other portsnone
Cables included2x SATA, 1x IDE
Brackets includednone
Software includednone

Setup and Overclocking

Voltage adjustmentCPU/RAM/Chipset
CPU clock max adjustment500MHz

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