Gigabyte GA-EP45-UD3R review

Alan Lu
24 Feb 2009
Our Rating 
Price when reviewed 
inc VAT



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

Gigabyte's GA-EP45-UD3R has some impressive overclocking features.

The BIOS lets you boost the frontside bus to a silly 1,200MHz and control the voltage of the processor, RAM and chipset. You can overclock your RAM to a maximum of 1,375MHz, and it has two BIOS chips, so you can boot up even if your BIOS settings on one are accidentally corrupted. At stock speeds, it was in the middle or near the bottom of our benchmarks.

The GA-EP45-UD3R also has plenty of expansion slots and ports. There are three PCI slots, although fitting a double-slot graphics card to the PCI Express x16 slot may block access to one of the three PCI Express x1 slots. It's one of only three Intel motherboards here to have both optical and coaxial S/PDIF ports for connecting a surround-sound amplifier.

Like Asus's P5Q Pro, it has eight SATA ports, which is more than enough for connecting multiple internal hard disks. These can also be used as eSATA ports, and a bracket is included in the box. With eight USB and two FireWire 400 ports, there's no shortage of external connectors.

Gigabyte's GA-EP45-UD3R is generously specified, and it's the motherboard to buy if you need lots of expansion ports and slots. We were disappointed that it wasn't faster in our benchmarks at its stock settings, though, and it's expensive at just over £100 including VAT. Foxconn's P43A is a better choice for most people.

Basic Specifications

Processor socketLGA775
Form factorATX
Processor supportCeleron, Pentium Dual-core, Core 2 Duo, Core 2 Quad, Core 2 Extreme Edition
Processor external bus400MHz (1,600MHz quad-pumped FSB)
Chipset north bridgeIntel P45 Express
Chipset south bridgeIntel ICH10R
Passively-cooled north bridgeyes
Integrated graphicsNo
Supported memory typeDDR2 667/800/1066/1366
Maximum memory speedPC2-11000
Memory slots4
Maximum memory16GB
Dual-channel supportyes

Buying Information


Internal Ports

Power connectors1x 24-pin ATX, 1x 8-pin ATX
PCI-E x16 slots1
Dual graphics architecturenone
PCI-E x4 slots0
PCI-E x1 slots3
PCI slots3
Fan headers2
Floppy ports1
IDE ports1
Serial ATA ports8
RAID chipset (max disks)Intel ICH10R (6x SATAII, RAID 0, 1, 5, 10), Gigabyte SATA2 (2x SATAII, RAID 0, 1, JBOD)


Wired network ports1x 10/100/1000
Sound (ports)Realtek ALC889A (optical and coaxial S/PDIF, 6x analogue out)
USB2 ports / headers8/4
Firewire ports / headers2/1
Legacy ports2x PS/2, parallel header, serial header
Other portsnone
Cables included2x SATA, 1x IDE, 1x floppy, 1x Molex to SATA power, 1x eSATA
Brackets included1x eSATA
Software includedXpress Recovery 2

Setup and Overclocking

Voltage adjustmentCPU/RAM/Chipset
CPU clock max adjustment1,200MHz

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