GA-P55-UD5 overclockability ? Max 190 bclk ?

bbross · Nov 14, 2009

GA-P55-UD5 "overclockability" : Max 190 bclk ?

Hello guys,

First post in here, so I hope it's at the right place. Don't flame me if it's not

To be honest I am quite new to overclocking (though i have been building my own rigs for several years now), so some of my future questions / remarks may seem dumb to you...

I just bought and put together a new build based on a GA-P55-UD5 motherboard and a core i7 860 CPU.

As I went through various articles on the Internet about those components, I was convinced of their overclockability, was seduced by that particular process and decided to take my first steps into that geeky world

I've already read a bunch of articles and have become acquainted with terms like base clock, uncore clock, vCore etc.

Problem is : whereas I see everywhere that motherboards like mine can get up to 210 bclk easily, mine does not seem to want to get past the 190 bclk "wall".

I am asking you for advice on how to optimize my first overclock, and to help me go forward in that "terra icognita"

What are the basic variables that could impact that bclk wall (given I already tried to reasonably raise the QPI/VTT voltage up to 1.28v) ?
vCore, QPI / VTT voltage, mobo bios, etc...

Thank you !

Grnfinger · Nov 14, 2009

can you list the rest of your hardware?

and

vCore:
IMC:
PLL:
PCH:

redduc900 · Nov 14, 2009

Here's a BIOS template for the P55, which you can use to post all of your current settings (ignore any of the settings in the template, and just replace w/ your own)...

Code:

Advanced Frequency Settings:

CPU Clock Ratio 21x

Advanced Core Features [Press Enter]:

Intel(R) Turbo Boost Tech. [Disabled]
CPU Cores Enabled [All]
CPU Multi-Threading [Disabled]
CPU Enhanced Halt (C1E) [Auto]
C3/C6/C7 State Support [Auto]
CPU Thermal Monitor [Auto]
CPU EIST Function [Auto]
Bi-Directional PROCHOT [Auto]

QPI Clock Ratio [Auto]

QPI Link Speed 6.4GHz
Uncore Clock Ratio 18x
Uncore Frequency 3600MHz

>>>>> Standard Clock Control <<<<<

Base Clock (BCLK) Control [Enabled]
BCLK Frequency [200]
Extreme Memory Profile (X.M.P.) [Enabled]
System Memory Multiplier (SPD) [Disabled]
Memory Frequency (MHz) 1333 2000
PCI Express Frequency (MHz) [Auto]
C.I.A.2 [Disabled]

>>>>> Advanced Clock Control <<<<<

CPU Clock Drive [ 800mV]
PCI Express Clock Drive [ 900mV]
CPU Clock Skew [ 0ps]

Advanced Memory Settings:

Extreme Memory Profile (X.M.P.) [Disabled]
System Memory Multiplier (SPD) [10.0]
Memory Frequency (MHz) 1333 2000
Performance Enhance (SPD) [Turbo]
DRAM Timing Selectable (SPD) [Expert]
Profile DDR Voltage 1.5v
Profile QPI Voltage 1.1v
Channel Interleaving 6 [Auto]
Rank Interleaving 4 [Auto]

>>>>> Channel A

Channel A Timing Settings [Press Enter]:
Cas Latency Time 9 [8]
tRCD 9 [8]
tRP 9 [9]
tRAS 24 [24]

>>>>> Channel A Advanced Timing Control

tRC 34 [Auto]
tRRD 5 [Auto]
tWTR 5 [Auto]
tWR 10 [Auto]
tWTP 21 [Auto]
tWL 7 [Auto]
tRFC 74 [Auto]
tRTP 5 [Auto]
tFAW 25 [Auto]
Command Rate (CMD) 1 [Auto]

>>>>> Channel A Misc Timing Control

B2B Cas Delay - [Auto]
Round Trip Latency 53 [Auto]

Channel A Turnaround Settings [Press Enter]:
Different DIMMs 6 [Auto]
Different DIMMs 5 [Auto]
On The Same Rank 1 [Auto]

>>>>> Channel A Writes Followed By Writes

Different DIMMs 6 [Auto]
Different DIMMs 6 [Auto]
On The Same Rank 1 [Auto]

***>>>>> Channel B

Channel B Timing Settings [Press Enter]:
Cas Latency Time 9 [8]
tRCD 9 [8]
tRP 9 [9]
tRAS 24 [24]

>>>>> Channel B Advanced Timing Control

tRC 34 [Auto]
tRRD 5 [Auto]
tWTR 5 [Auto]
tWR 10 [Auto]
tWTP 21 [Auto]
tWL 7 [Auto]
tRFC 74 [Auto]
tRTP 5 [Auto]
tFAW 25 [Auto]
Command Rate (CMD) 1 [Auto]

>>>>> Channel B Misc Timing Control

B2B Cas Delay - [Auto]
Round Trip Latency 53 [Auto]

Channel B Turnaround Settings [Press Enter]:
Different DIMMs 6 [Auto]
Different DIMMs 5 [Auto]
On The Same Rank 1 [Auto]

>>>>> Channel B Writes Followed By Writes

Different DIMMs 6 [Auto]
Different DIMMs 6 [Auto]
On The Same Rank 1 [Auto]

Advanced Voltage Settings:

******Mother Board Voltage Control ******
Voltage Types............Normal......Current
--------------------------------------------

>>> CPU
Load Line Calibration................[Level 2]
CPU Vcore..................1.19375v..[1.41875v]
QPI/VTT Voltage...........1.100v.....[1.400v]
>>> MCH/ICH
PCH Core....................1.050v.....[Auto]
CPU PLL......................1.800v....[Auto]
>>> DRAM
DRAM Voltage..............1.500v.....[1.660v]
DRAM Termination..........0.750v.....[Auto]
Ch-A Data VRef............0.750v.....[Auto]
Ch-A Data VRef............0.750v.....[Auto]
Ch-B Data VRef............0.750v.....[Auto]
Ch-B Data VRef............0.750v.....[Auto]

Miscellaneous Settings:

Isochronous Support...................[Enabled]
Virtualisation technology.............[Enabled]

bbross · Nov 14, 2009

Thank you for your replies. Here are my settings.

I am trying to identify my upper bclk limit so, i've put the other components under minimal stress.

Code:

Advanced Frequency Settings:

CPU Clock Ratio 9x

Advanced Core Features [Press Enter]:

Intel(R) Turbo Boost Tech. [Disabled]
CPU Cores Enabled [All]
CPU Multi-Threading [Enabled]
CPU Enhanced Halt (C1E) [Disabled]
C3/C6/C7 State Support [Auto]
CPU Thermal Monitor [Auto]
CPU EIST Function [Disabled]
Bi-Directional PROCHOT [Auto]

QPI Clock Ratio [32x]

QPI Link Speed 6.08GHz
Uncore Clock Ratio 18x
Uncore Frequency 3000MHz

>>>>> Standard Clock Control <<<<<

Base Clock (BCLK) Control [Enabled]
BCLK Frequency [190]
Extreme Memory Profile (X.M.P.) [Disabled]
System Memory Multiplier (SPD) [6.0]
Memory Frequency (MHz) 1333 1140
PCI Express Frequency (MHz) [Auto]
C.I.A.2 [Disabled]

>>>>> Advanced Clock Control <<<<<

CPU Clock Drive [ 800mV]
PCI Express Clock Drive [ 900mV]
CPU Clock Skew [ 0ps]

Advanced Memory Settings:

Extreme Memory Profile (X.M.P.) [Disabled]
System Memory Multiplier (SPD) [6.0]
Memory Frequency (MHz) 1333 1140
Performance Enhance (SPD) [Standard]
DRAM Timing Selectable (SPD) [Quick]
Profile DDR Voltage 1.5v
Profile QPI Voltage 1.22v
Channel Interleaving 6 [Auto]
Rank Interleaving 4 [Auto]

>>>>> Channel A

Channel A Timing Settings [Press Enter]:
Cas Latency Time 9 [9]
tRCD 9 [9]
tRP 9 [9]
tRAS 24 [24]

>>>>> Channel A Advanced Timing Control

tRC 34 [Auto]
tRRD 5 [Auto]
tWTR 5 [Auto]
tWR 10 [Auto]
tWTP 21 [Auto]
tWL 7 [Auto]
tRFC 74 [Auto]
tRTP 5 [Auto]
tFAW 25 [Auto]
Command Rate (CMD) 1 [1]

>>>>> Channel A Misc Timing Control

B2B Cas Delay - [Auto]
Round Trip Latency 53 [Auto]

Channel A Turnaround Settings [Press Enter]:
Different DIMMs 6 [Auto]
Different DIMMs 5 [Auto]
On The Same Rank 1 [Auto]

>>>>> Channel A Writes Followed By Writes

Different DIMMs 6 [Auto]
Different DIMMs 6 [Auto]
On The Same Rank 1 [Auto]

***>>>>> Channel B

Channel B Timing Settings [Press Enter]:
Cas Latency Time 9 [9]
tRCD 9 [9]
tRP 9 [9]
tRAS 24 [24]

>>>>> Channel B Advanced Timing Control

tRC 34 [Auto]
tRRD 5 [Auto]
tWTR 5 [Auto]
tWR 10 [Auto]
tWTP 21 [Auto]
tWL 7 [Auto]
tRFC 74 [Auto]
tRTP 5 [Auto]
tFAW 25 [Auto]
Command Rate (CMD) 1 [1]

>>>>> Channel B Misc Timing Control

B2B Cas Delay - [Auto]
Round Trip Latency 53 [Auto]

Channel B Turnaround Settings [Press Enter]:
Different DIMMs 6 [Auto]
Different DIMMs 5 [Auto]
On The Same Rank 1 [Auto]

>>>>> Channel B Writes Followed By Writes

Different DIMMs 6 [Auto]
Different DIMMs 6 [Auto]
On The Same Rank 1 [Auto]

Advanced Voltage Settings:

******Mother Board Voltage Control ******
Voltage Types............Normal......Current
--------------------------------------------

>>> CPU
Load Line Calibration................[Standard]
CPU Vcore..................1.19375v..[1.25v]
QPI/VTT Voltage...........1.100v.....[1.22v]
>>> MCH/ICH
PCH Core....................1.050v.....[Auto]
CPU PLL......................1.800v....[Auto]
>>> DRAM
DRAM Voltage..............1.500v.....[Auto]
DRAM Termination..........0.750v.....[Auto]
Ch-A Data VRef............0.750v.....[Auto]
Ch-A Data VRef............0.750v.....[Auto]
Ch-B Data VRef............0.750v.....[Auto]
Ch-B Data VRef............0.750v.....[Auto]

Miscellaneous Settings:

Isochronous Support...................[Enabled]
Virtualisation technology.............[Enabled]

Additional question : regarding QPI / VTT voltage, I've read somewhere that intel specs for LGA1156 were MAX 1.21v (iirc). Is that true ? It would limit the overclockability further more :-(

Update - Additional info

I don't understand the data from easy tune 6, especially the numbers in "Power On" and "Target" Columns. It has none to do with my bios setting ?!

GA-P55-UD5 overclockability ? Max 190 bclk ?

bbross

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Grnfinger

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redduc900

Inactive Moderator

bbross

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