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Gigabyte GA-P55-UD3R Intel P55 Motherboard Review
Gigabyte GA-P55-UD3R Intel P55 Motherboard Review - PCSTATS
It's not every day that a new chipset such as the Intel P55 Express brings about such sweeping changes to the desktop PC environment. In addition to its two PCI Express x16 slots, Gigabyte's GA-P55-UD3R has four legacy PCI slots and a single PCI Express x1 slot.
 80% Rating:   
Filed under: Motherboards Published:  Author: 
External Mfg. Website: Gigabyte Oct 28 2009   J. Apong  
Home > Reviews > Motherboards > Gigabyte GA-P55-UD3R

Overclocking the BCLK, BIOS screenshots

Overclocking Results:
stock max. oc
motherboard speed: 133mhz

210 mhz

if you're new to Overclocking and not sure what to do, check out these two excellent Guides for some pointers:
Overclocking the CPU and Memory
Overclocking the Videocard

Intel's Core i5 processors slip into a new class of motherboards with 1156-pin CPU sockets, follow in AMD's integrated memory controller footsteps and take on much of the responsibilities previously relegated to the motherboard's northbridge chipset. In other words, a lot has changed. Overclocking methodologies change along with CPU architectures, but this time around the good old Front Side Bus is nowhere to be seen, replaced by a similar number called BCLK - base clock. Architectural CPU changes bring about new challenges, new possibilities and of course, new overclocking potential!

PCSTATS is still finding its feet with Core i5 overclocking, but from what we're seeing the choice of motherboard plays an important role, as always.

Before the Core i5 750 overclocking commenced, PCSTATS installed two sticks of 2GB Corsair CMD4GX3M2A1600C8 DDR3 RAM into the Gigabyte GA-P55-UD3R motherboard. High quality, low latency memory is the cornerstone of a successful overclocking attempt, and Corsair is among the best performance memory makers out there.

The Corsair CMD4GX3M2A1600C8 memory was set to run in DDR3-800 MHz mode, so as not to hold the CPU back. All CPU speed throttling options were disabled in the GA-P55-UD3R BIOS, including C1E state, and Speedstep/EIST. The standard Intel reference socket 1156 heatsink was used for cooling.

We adjusted the Core i5 750's CPU multiplier down to 12x, the base clock was then slowly increased from 133MHz towards 200 MHz. The GA-P55-UD3R motherboard's BCLK was successfully raised in 15 MHz increments.

Moving to 150MHz and then 175MHz BLCK proved to be no problem. From there we sped through to 200MHz and then 215MHz before crashing when loading Windows Vista. The board finally came to a rest at an overclocked BCLK speed of 210MHz.

Of course, even if you don't overclock your processor manually, you can still take advantage of the Core i5 750's large amounts of headroom through enabling Turbo Boost or Gigabyte's Smart Boost utility.

Inside the BIOS - OC and Memory Tuning Options

Voltage tuning is just as important as ever when overclocking or tweaking Intel's socket 1156 processors. Gigabyte's GA-P55-UD3R allows pretty much every element of the chipset and processor to be overvolted.

While it's the Intel Core i5 (or Core i7 800-series) processor controlling the memory instead of the Intel P55 Express chipset, settings are are still adjusted through the BIOS. The board has support Intel Extreme Memory Profiles, which can load more aggressive memory timings for supported memory sets.

Memory settings can be adjusted down to the cycle, which makes it easy to push your memory performance to the absolute limit.

CPU overclocking has changed a little from the days of adjusting the FSB, but it's still possible. By adjusting the base clock (BCLK), the overall frequency of the processor will increase as well.

This status page gives an overview of Gigabyte's GA-P55-UD3R's overall settings so you can what speeds, ratios and timings the system is running at a glance.

With the BIOS covered, let's get ready to see how the Gigabyte GA-P55-UD3R really performs...

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Contents of Article: Gigabyte GA-P55-UD3R
 Pg 1.  Gigabyte GA-P55-UD3R Intel P55 Motherboard Review
 Pg 2.  Closer Look at Intel's P55 Express chipset
 Pg 3.  Motherboard Highlights Photo Gallery
 Pg 4.  — Overclocking the BCLK, BIOS screenshots
 Pg 5.  Power Draw and Test System Specs
 Pg 6.  Motherboard Benchmarks: SYSmark 2007, PCMark Vantage
 Pg 7.  Motherboard Benchmarks: Sandra 2009
 Pg 8.  Motherboard IGP Benchmarks: 3DMark06, 3DMark Vantage, FEAR
 Pg 9.  P55 and Core i5 Worth Buying? Yes.

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