Seek Quad Core Clock and Component upgrade version, GIGABYTE GA-EP45-UD3P

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GIGABYTE launched Intel new mainstream chipset, P45+ICH10, in June.
The naming rule still continued DS3/DS4/DQ6, and also added the new EXTREME series.

Since GIGABYTE announced Ultra Durable 3, the new naming rule is UD3 series.
This spec starts from P45 chipset. The UD3 has 3 models, UD3/UD3R/UD3P, which are sorted by price.

The board I got is GIGABYTE GA-EP45-UD3P.
The difference to UD3R is that UD3P has Dual GbE LAN, 1 more PCI-e X8 and support ATI CrossFireX.

Take a look for packing first
Package emphasize UD3 technology, DDR2 1366+ and 2oz cooper PCB used


Backside also has detail function introduction


Accessories inside
Manual and installation guide, cables, I/O shield, eSATA bracket.


GIGABYTE GA-EP45-UD3P

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Re: Seek Quad Core Clock and Component upgrade version, GIGABYTE GA-EP45-UD3P



Left Lower corner
1 X PCI-E X16(blue)
1 X PCI-E X8(orange which can run CrossFireX X8+X8 with blue slot)
3 X PCI-E X1
2 X PCI
Realtek 8111C LAN chip supports Teaming technology
Realtek ALC889A supports 7.1 channel and High Definition Audio.
It also has Dolby simulation function by dual channel sound.


Right Lower corner
6 X SATAII( SB ICH10R provided. It supports SATA RAID 0, RAID 1, RAID 5 and RAID 10)
2 X SATAII(JMicron 368 provided)
1 X Floppy
Dual BIOS protection


Right Upper corner
4 X DIMM DDR2, supports 800/1066/1366 and 1366 is special spec.
1 X IDE(JMicron 368 provided)
24Pin power in

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Re: Seek Quad Core Clock and Component upgrade version, GIGABYTE GA-EP45-UD3P

BIOS main page


M.I.T. OC/Performance page




Voltage page
Load-Line Calibration avoid CPU voltage dropped
CPU Vcore 0.5000~2.30000V
CPU Terminatin 1.100~1.700V
CPU PLL 1.050~2.810V

MCH Core 0.850~2.000V
MCH Reference 0.690~1.230V
ICH I/O 1.050~2.310V
DARM Voltage 1.450~3.040V
DRAM Termination 0.970~1.665V

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Re: Seek Quad Core Clock and Component upgrade version, GIGABYTE GA-EP45-UD3P

Advanced CPU items
CPU Clock Skew can adjust between 50~200ps to let dual core CPU to reach higher clock.


Advanced DRAM items


Sercuity Chip Configuration


PC Health Status

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Re: Seek Quad Core Clock and Component upgrade version, GIGABYTE GA-EP45-UD3P

1GBX2 CORSAIR Dominator TWIN2X2048-10000C5D
DDR2 1433 CL5 5-5-15 2T 2.5V
2 X SP2004 Blend mode stable


CPU 450 X 9=>4050Mhz
DRAM DDR2 1500 CL5 5-5-15 2T 2.5V
EVEREST 10237MB/s


CPU/DRAM 500/1333
EVEREST 10810MB/s



CPUZ Validator DDR2 1500 CL5 5-5-15

UD3P is also very good at DDR2 OC. It can reach DDR2 1333-1500 at around 2.4~2.5V.
I can say this is never seen before to take DDR2 into such high frequency.

3D part
Test with MSI 4670 512MB OC
CPU 500 X 9=>4500Mhz
DRAM DDR2 1200 CL5 5-5-15 2T
VGA 833/2250

3DMARK2003

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