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The Gigabyte GA-EP45-UD3LR is a full-sized ATX motherboard with a CPU slot for Intel LGA 775 chips.

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Pros

can handle a full 16GB of DDR3 with 4 slots, fast access times

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plenty of ports and slots for expansion

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can have more USB ports than most will ever need

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plenty of PCI-E x1 slots for Firewire, extra SATA connectors, Ethernet cards and other things along those lines

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Frontside bus is faster than on most motherboards

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built-in RAID controller and 6 SATA ports makes setting up a RAID easy

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Cons

PCI-E x16 slot is squeezed between the RAM and the Southbridge, makes for a tight fit

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Edit

 

The Gigabyte GA-EP45-UD3LR is a full-sized ATX motherboard with a CPU slot for Intel LGA 775 chips. This is nearly identical to the Gigabyte GA-EP45-UD3L, but now has built-in RAID support. This enables users to build a home theater system with either robust automatic backups or faster access times. High definition audio is available on 7.1 channels through optical or coaxial S/PDIF connectors that can connect directly to an A/V system. Up to 16GB of DDR2 memory can be added for processing larger file sizes, and a 10/100/1000 Ethernet port is built in for wired Internet access. A PCI-E x16 slot is also available for fast access to a video card.

Features
  • ATX Form Factor; 30.5cm x 21.0cm
  • Intel LGA 775 CPU slot, supports Intel Core 2 Extreme, Intel Core 2 Quad, Intel Core 2 Duo, Intel Pentium Dual-Core, Intel Celeron
  • Front Side Bus: 1600/1333/1066/800 MHz
  • North Bridge: Intel P45 Express Chipset
  • South Bridge: Intel ICH10R
  • 4 x DDR2 DIMM sockets, up to 16 GB of system memory
  • Dual channel memory architecture
  • Support for DDR2 1366+*/1066/800/667 MHz memory modules
  • Built-in Audio: Realtek ALC888, High Definition Audio, 2/ 4/ 5.1/ 7.1-channel
  • Support for S/PDIF In/Out, CD In
  • 10/100/1000 Ethernet, Realtek 8111C chip
  • 1 x PCI Express x16, 4 x PCI Express x1, 2 x PCI slots
  • 6x SATA 3Gb/s connectors
  • Support for SATA RAID 0, 1, 5, and 10
  • 1 x IDE connector
  • 1 x floppy disk drive connector
  • Up to 12 USB 2.0/1.1 ports
  • PS/2 mouse port, PS/2 keyboard/mouse port, optical S/PDIF Out connector, coaxial S/PDIF Out connector, 8 x USB 2.0/1.1 ports, RJ-45 ports, 6 x audio jacks (Center/Subwoofer Speaker Out/Rear Speaker Out/Side Speaker Out/Line
  • Support for Microsoft/ Windows/ Vista/XP
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