MSI P67A-GD65 (B3) User manual

P67A-GD65 (B3) Overclocking Guide 1
After Intel launched the Series 50 chipsets
and Lynneld and Clarkdale processors for
desktops in 2009, platforms for LGA1156
processors have since become the focus of
worldwide power users. After another year
pf further research, Intel revolutionized again
the desktop platforms by launching the brand
new platform code-named Sandy Bridge,
which included both the Series 60 chipsets
and core processors. MSI thus launched the
next-gen Intel mainboards for consumers to
experience these new desktop products from
Intel.
OVERVIEW
SOME OC INFO ABOUT NEW P67 PLATFORM
NEXT GENERATION - OC GENIE II
MILITARY CLASS MATERIALS
MULTI-GRAPHICS CARDS GAMING DESIGN
OC NOTICE:COOLER CONFIGURATION
MANUAL OC OVERVIEW
OC ABILITY REFERENCE
P67A-GD65 (B3) OC SETTING REFERENCE TABLE
BUILD UP HIGHER BANDWIDTH WITH SATA 6GB/S
SUPER SPEED USB
OTHER FEATURES ON P67A-GD65 (B3)
CONCLUSION
Contents
NOTE
The function, specification, data and pictures provided by this guidebook is only for refer-
ence. Please refer to the actual content through the official launched product.

2 P67A-GD65 (B3) Overclocking Guide
P67A-GD65 (B3) Overclocking Guide 3
OVERVIEW
For the new P67 mainboards, MSI also upgraded the OC Genie for P55
mainboards that has received critical acclaim to the OC Genie II. Along
with the brand new heat-sink design, the SATA III (6Gbps) interface
and USB3.0 ports to expand the mainboard capacity; and the military-
class components, both the quality and lifespan of the P67 mainboards
have been enhanced.
New P67 Platform Weapon -
P67A-GD65 (B3)

4 P67A-GD65 (B3) Overclocking Guide
P67A-GD65 (B3) Overclocking Guide 5
Some OC Info About New
P67 Platform
Despite design and architectural similarities between the Intel Series 60
chipsets for the brand new LGA1155 processors and the previous Series 50
chipsets for LGA1156 processors, none of them are compatible. In addition to
the integrated GPU, the Sandy Bridge is equipped with more demanding OC
restrictions. That is to say, it is less flexible than any LGA1156 processors.
OC ? You need K SKU CPU
First, Intel has restricted base clock OC of
Sandy Bridge processors, and the average
BCLK OC range is about 10%. Given that the
default BCLK of the Sandy Bridge is 100MHz,
the OC range will fall within 110MHz. When
compared with the processors of previous
versions, the range is far less. In other words,
we can only adjust the CPU ratio (multiplier)
to run OC on the Sandy Bridge processors,
and the K series processors without ratio
block will surely be the primary choice for OC
power users.
Sandy Bridge CPU OC Ability Comparison
K SKU i7 i5 i3
Base Clock
CPU Ratio
GPU Clock
Chipsets OC Limited
Apart from the range limit of processors, the design
of the Series 60 chipsets also differs. Although the
OC features of the P55 and H55 chipsets are similar
(depending on the mainboard design), it is necessary
for consumers to carefully select the Series 60 chip-
sets in order to run OC on their systems. Despite the
fact that the GPU is integrated with all Sandy Bridge
processors, users are advised to choose the K-series
processors and P67 mainbaords in order to exert the
power of OC. However, when one wants to run OC
on the GPU integrated with the processors, the H67
platforms will be the only choice. Simply speaking, it
is impossible to run GPU OC on the P67 platforms or
CPU OC on the H67 platforms.
=Adjustable at a limited range.
Sandy Bridge Platform OC Ability Comparison
P67 H67
Base Clock
CPU Ratio
GPU Clock
=Adjustable at a limited range.

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P67A-GD65 (B3) Overclocking Guide 7
NEXT GENERATION - OC GENIE II
Although Intel has imposed various OC restrictions on the Sandy Bridge
platform, the OC Genie button is still equipped on the mainboards for this
platform. In fact, it is the new-gen OC Genie II from MSI. Also equipped with
the auto optimization and quick hardware OC features, the OC Genie II can
automatically optimize the CPU Multiplier, CPU VCore, Memory Ratio and
Memory Voltage of Core i7/i5 processors for beginners to enjoy the greater
performance delivered by the Intel Turbo Boost in the simplest and fastest
manner.
3D Mark Vantage CPU
21712
17912
Cinebench R11.5
6.03
4.79
OC Genie Button
It is easy to use the OC Genie. You just need to press the “OC
Genie” button when the system is shut off and the system will
auto overclock to its optimum status when rebooting.
MSI OC Genie II
Intel Turbo Boost
Core i7 2500K OC Genie II Performance Comparison
26% UP
Note:
The OC Genie II does not support Core i3 processors as a result
of the architectural restrictions of Sandy Bridge processors.
MILITARY CLASS MATERIALS
Continuing the premium-quality material design tradition, apart
from delivering a longer lifespan, the MSI P67A-GD65 (B3) main-
board makes OC operation more stable.
Hi-C CAP
Hi-C CAP, Highly-
Conductive
Polymerized
Capacitor, uses
high electric
conduction
polymer as in-
ternal electro-
lyte, featuring
the small size and high capacity, which are commonly used in many electron-
ic products such as laptop computers, satellites and so on.
The main reason Hi-C CAP can be applied in high tech and precise machine is
that the special Core brings low ESR (Equivalent Series Resistance), low elec-
tric leaks (Leakage Current) and larger adaptation range of ambient temper-
ature scope. High ESR and Leakage current cause not only unstable system
but also the life cycle reduction of spare part. The Hi-C CAP performance in
ESR and Leakage current both surpass the present mainstream Solid CAP,
not to say the obsolete EL CAP. Being as for the whole, Hi-C CAP stables the
motherboard power output, enhances the power transference efficiency
and has the adjustment function when Inrush Current (burst electric current)
occurs. Naturally, the power loss is extremely low, brings the greatest superi-
ority either in overclocking operation or life cycle.
Incredible lifetime
Less Leakage
Temperature
Lifetime
Office
Gaming +
Bad condition
85
o
C
65
o
C
112,000 hours
12.8 years
449,000 hours!!
>50 years
Hi-c CAP
82.5 µA
Solid Cap
1250 µA
Leakage Current
Higher is better
Lower is better
15x Less Leakage
More stable power output
Higher power efficiency

8 P67A-GD65 (B3) Overclocking Guide
P67A-GD65 (B3) Overclocking Guide 9
ESR Comparison
Solid Cap
5 mΩ
Hi-c Cap
< 5 mΩ
EL Cap
>20 mΩ
ESR (mΩ)
Lower is better
SFC
To reach the lower power consumption, P67A-GD65 (B3)’s PWM adopt Green
Choke design, SFC (Super Ferrite Choke), utilizing the latest material tech-
nology - iron core. The material’s exclusive physical character allows SFC
automatically to adjust the inductance value for optimal power efficiency
based on the system’s loading. During light loading such as surfing the net
or running 2D operations, SFC can help provide up to a 20% improvement
in power efficiency compared to a normal ferrite choke. For heavier loading
such as playing 3D games, SFC’s ultra-low impedance still helps to maintain a
low operating temperature. Even when overclocking to the max, Super Fer-
rite Choke offers an incredibly stable supply of power. Clearly, SFC can satisfy
every possible power demand and usage scenario.
SFC provides over 20% power efficiency improvement during
light loading. Ultra-low impedance ensures low operating
temperature and stable power supply when overclocking.
MULTI-GRAPHICS CARDS GAMING DESIGN
The P67A-GD65 (B3) mainboard has two PCI-E X16 slots; except it may be in-
stalled the full two graphics cards for formidable multi-screen output, it also
supports the amazing Nvidia SLI and AMD CrossFireX computing.
Multi-VGA cards system configuration
Mainboard P67A-GD65 (B3)
BIOS 10H
CPU Core i7 2600K D2
Memory Corsair CMGTX3 DDR3-2400
Graphics Card Nvidia GeForce GTX470, ATI Radeon HD5870
HDD Intel SSDSA2MH080G2GN
PSU XIGMATEK NRP-HC1001 1000W
OS Windows 7 64bit RTM7600
ATI CrossFire 3DMark Vantage Benchmark Comparison
1-Way
2-Way
Nvidia SLI 3DMark Vantage Benchmark Comparison
1-Way
2-Way
P19279
P27839
P17954
P30691

10 P67A-GD65 (B3) Overclocking Guide
P67A-GD65 (B3) Overclocking Guide 11
Well-controlled temperature is sure to enhance overclocking capability. The
higher the CPU temperature rises, the higher risks of system instability and
overclocking failure may cause. According to our clinical test, temperature
of the boxed CPU fan of Intel may exceed 50 easily during OC usage due to
its small-scale cooling design. That is why changing a high-efficiency CPU fan
with better heat dissipation is recommend, radiation fan for instance, seems
to be a better solution for both of CPU and PWM. Furthermore, if you intend
to push your hardware to the limit, then CPU-LN2 would be the best choice
of all so far.
OC NOTICE:
COOLER CONFIGURATION
Intel official boxed CPU fan
This is the original boxed LGA1155 CPU
fan, and it’s not suitable for overclocking
due to its small-scale cooling design.
Better to use enhanced cooler set
The dissipation effect of the enhanced
cooler set is better than that of the origi-
nal factory fan.
The special design cooler set of
overclocking
It takes the illustrated proprietary design
cooler set to lower temperature and
avoid system instability.
Not recommend
Acceptable
Better
MANUAL OC OVERVIEW
All MSI Sandy Bridge mainboards are equipped with the latest UEFI BIOS
technology, and the OC setup items are mostly found in the OC option in
the main menu. Regardless of the differences in the user interface, both the
name of options and the setup procedure of these options are similar to
those of the previous MSI mainboards. Therefore, it is very easy for users to
adapt to them.
Frequency Setting
Due to the Base Frequency restrictions of the Sandy Bridge processors, us-
ers are advised to adjust the CPU Ratio while running frequency-related
OC operations, while CPU Base Frequency is supportive. For example, when
running memory OC, users can fine-tune the memory from DRAM Ratio. It is
noteworthy that the unit for the Base Frequency is 10KHz.
Also, users were advised to shut down the Intel Turbo Boost when running
OC manually. On the Sandy Bridge processors, however, users are advised
to turn the Intel Turbo Boost in order to obtain the unexpectedly great OC
effect.

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P67A-GD65 (B3) Overclocking Guide 13
Voltage Setting
In overvoltage operations, the OC Genie II provides comprehensive items
as in the previous generation for users to adjust. These items include: CPU
Voltage, CPU IO Voltage (VTT), DRAM Voltage and System Agent Voltage.
The CPU Voltage and IO Voltage are the two items related to CPU OC, and
the DRAM Voltage and IO Voltage are the two associated with memory OC.
When increasing voltage to enhance OC capability, it means the system will
produce more heat and consume more energy. Therefore, users should pay
attention to the thermal condition of various devices, and even replace the
heat-sinks on the mainboard. When the CPU consumes more power, this
will activate the protective mechanism built in the CPU to reduce CPU Ratio
when system loading.
The VDroop Control option helps to correct the voltage drop while the CPU
is under high-load operation. The VDroop setting does not affect the over-
clocking capability of the CPU but indeed interferes with other overclocking
settings. As a solution, users may need to adjust the voltage settings after
tuning the VDroop. Given the high cooling efficiency of the cooler/heat sink,
users are suggested to set the VDroop to“Low VDroop”to enhance system
stability during heavy loading.
Advanced Memory Timing Setting
Users can assign different settings for particular channels of memory. This
has the advantage of individual memory parameter optimization, even using
the different memory specifications. When you set the detailed parameters,
and don’t know where to start with values, you can refer to the bottom of
the Current memory values list in the gray font block to set the appropriate
parameters for overclocking and not too far off the mark.
CPU Feature
Settings of devices built in the CPU are adjustable from the options in the
CPU Features. With these options, users can set the Execute Disable Bit,
Virtualization Tech, Power Technology and C State. The Long/Short Duration
Power Limit is designed for users to adjust the CPU TDP wattage limit. These
two settings are the key to control of the CPU Ratio when running OC in
heavy loading.

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P67A-GD65 (B3) Overclocking Guide 15
OC ABILITY REFERENCE
Now, taking the P67A-GD65 (B3) mainboard with the Intel’s latest Core i7
2600K CPU as an example, we will set Core Speed and Memory Frequency as
overclocking items to introduce some points and notices to users for refer-
ence.
Max CPU Core Speed
Learned from the LGA1156 platform experience, the Core i7 CPU’s Core
Speed can be overclocked to 4GHz approximately in air cooling condition.
But by the promotion of the 32nm manufacture process, even the Core i7
2600K CPU has four built-in cores, it can reach 5GHz merely in air cooling
condition; thus, attracting many overclockers.The key of the Core i7 2600K
CPU is CPU Ratio.
Because it is the CPU Ratio unlocked K version, you can direct tune the CPU
Ratio to raise the Core Speed despite the Base Clock and Dram Frequency.
CPU Voltage and CPU IO Voltage are two major factors for voltage adjust-
ment; certainly do not set them to excessively high values to avoid burning
down the CPU or the motherboard.
Demo system configuration
Motherboard P67A-GD65 (B3)
BIOS V1.0H
CPU Core i7 2600K D1
Memory Corsair CMGTX3 DDR3-2400
Graphics Card MSI Nvidia GeForce GTX470
HDD Intel SSDSA2MH080G2GC
PSU XIGMATEK NRP-HC1001 1000W
OS Windows 7 64-bit Ultimate RTM 7600
Note: Although the BIOS is the V1.0H Beta edition, but the function will be added into the official
edition.
• CPU Voltage:1.375V
• CPU IO:Auto
• Base Clock:100MHz
• CPU Ratio:50×
Reference setting ~ 5000MHz
Max Memory Frequency
Due to the limited BCLK OC range of the Sandy Bridge processors and the re-
strictions on memory ratio; e.g. the maximum ratio for 2600K is only 8 times.
Therefore, the maximum range for memory OC will be around DDR3-2133;
except with the support of Base Clock OC.
Thanks to the quality of DDR3 modules nowadays, as long as users buy bet-
ter DDR3 modules, it will not be difficult to boost the memory frequency
to DDR3-2133. Resembling the LGA1156 platform, the DRAM Voltage is the
main item for adjusting CPU IO voltage. After changing the Base Frequency,
it may be necessary to adjust the CPU Vcore and CPU IO Voltage.
• CPU IO Voltage:Auto • RAM Voltage:1.652V • RAM Ratio:8×
Reference setting ~ DDR3-2133

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P67A-GD65 (B3) Overclocking Guide 17
Tuning Item Default Increment Easy Normal Fun Danger Not Recom-
mend
CPU Ratio 34 1 34~40 40~45 45~50 50~52 >52
CPU Vcore
(V) 1.160 0.005 ~1.3 1.3~1.4 1.4~1.5 1.5~1.6 >1.6
CPU IO Voltage
(V) 1.112 0.0265 ~1.2 1.25~1.3 1.3~1.45 1.45~1.5 >1.5
Memory Frequency
(MHz)
DDR3-
1333
Depends
on DRAM
Ratio
DDR3-
1333~1600
DDR3-
1600~2000
DDR3-
2000~2133
>DDR3-
2133
> DDR3-
2300
RAM Voltage
(V) 1.472 0.007 1.5~1.6 1.6~1.65 1.65~1.8 >1.8 >1.9
Note:
1. The reference value above is for Core i7 2600K D2 ver. Processor.
2. The condition is based on air cooling.
3. Increasing voltage may raise the success rate of overclocking as the risk of damage
the CPU; thus,we suggest use the special design CPU cooler set to prevent the CPU
from overheating.
4. Below voltage value would cause the damage of component while under air cooling.
• CPU Voltage:1.6V
• CPU I0 Voltage:1.5V
• DRAM Voltage:1.9V
We suggest disable some item in BIOS,such as Green Power Phase Contral and
OverSpeed Protection.
P67A-GD65 (B3) OC SETTING
REFERENCE TABLE
BUILD UP HIGHER BANDWIDTH
WITH SATA 6Gb/s
Considering user’s requirement for massive data transmission, high data
bandwidth has become an essential for the development of motherboard,
and SATA 6Gb/s is probably the best solution for insufficient bandwidth at
the present time.P67A-GD65 (B3) contains four SATA 6Gb/s ports that maxi-
mize data transmission bandwidth through the Intel P67 and Marvell SATA
6Gb/s controller chip. In terms of data transmission cable, SATA 6Gb/s hard
disk and the previous generation, SATA 3Gb/s, share the same data cable, as
well as the SATA power cable.
SATA Performance Comparison
SATA 3Gb/s SATA 6Gb/s
To ensure the hard disk transmission rate is optimized, it is strongly recom-
mended to use SATA 6Gb/s SSD. Even create a RAID 0 disk system with two
hard disks that support SATA 6Gb/s.
There
are four white
SATA III (6Gbps) connectors
on the mainbaord. The first two are na-
tive (SATA1/SATA2) to Intel P67 chipset, and the last
two are Marvell SATA-III (6Gbps) controllers (SATA7/SATA8).

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P67A-GD65 (B3) Overclocking Guide 19
Super Speed USB
Although Intel did not include USB3.0 in the Sandy Bridge processors, it is
equipped on the P67A-GD65 (B3) to provide high-speed data transfer up to
5Gbps. With two NEC controllers, the P67A-GD65 (B3) provides four USB3.0
ports, including two on the rear panel and two in the pin-header form for
users to connect to either on the front panel or the add-on USB on the rear
panel.
The two NEC USB3.0 controllers equipped on the P67A-GD65 (B3)
provide four USB3.0 ports for users to enjoy high-speed data trans-
fer up to 5Gbps. Two USB3.0 ports are prepared in the pin-header
form (comply with Intel specifications) for further expansion.
USB Performance Comparison
USB2.0 USB3.0
To ensure the hard disk transmission rate is optimized, it is strongly recom-
mended to use USB3.0 SSD.
OTHER FEATURES ON P67A-GD65 (B3)
ClickBIOS
The GUI of UEFI BIOS technology makes BIOS
setup a piece of cake and adds additional
gaming and entertainment functions. Users
can even change settings with a mouse.
Multi BIOS
The latest Multi BIOS technology from MSI
is equipped with the auto-backup function
that can recover the system with the previ-
ous good booting log when the BIOS data
crashed. This way, users can always start
their systems.

20 P67A-GD65 (B3) Overclocking Guide
Super Charger
The first USB pin header on the P67A-GD65 (B3) supports the latest Super
Charger which supplies high voltage for charging iPad or iPhone by au-
tomatically identifying the voltage requirements of the device connected
to the port. Other ports are also equipped with the previous iCharger
function. Therefore, it can be considered as an improved version of the
iCharger (must be used along with the corresponding software).
V-Check Points
“V-Check Points” detects voltage for core components dur-
ing overclocking activities. There are five measure points at
the edge of this mainboard, allowing enthusiasts to check
relevant voltage values through a multimeter.

CONCLUSION
As the first featuring P67 mainboard from
MSI, the P67A-GD65 (B3) is made with
military class materials and equipped with
SATA-III connectors (6Gbps) and USB3.0.
The new-gen OC Genie II allows beginners
to run OC operations in great convenience
in order to enhance system performance
that is superior to the Intel Turbo Boost.
Along with the mouse-operable Click BIOS
and the Multi BIOS with auto-backup
function, the P67A-GD65 (B3) is without a
double an ideal choice with convenience
functions for both beginners and power
users.