Gigabyte=P55A-UD5 & F3-18400CL8D-4GBPIS

[GDabler]

hi
can you please tell me in the bios menu the settings in M.I.T. about how to reach the default speed of my rams?
im not really interesting to oc my cpu
my cpu is i5-750

[GSKILL TECH]

You will need to overclock the CPU to reach default frequencies of your RAM. The i5-750 will have problems operating that high as well since it only has a 10X memory multiplier.

I can help you get to DDR3-2000, but anything above will take lots of trial and error testing for precise voltages and stability.

Thank you
GSKILL TECH

[GDabler]

i appreciate the advice even to get to 2000

[GSKILL TECH]

Make sure you have the latest BIOS for this motherboard. Older versions will have issues with DDR3-2000+

First try the XMP Profile. Set QPI/VTT Voltage to 1.50V, and let me know how that goes.

Thank you
GSKILL TECH

[GSKILL TECH]

Settings are going to look like so:

Advanced CPU Features:
CPU Clock Ratio ................................ [14x]
Intel(R) Turbo Boost Tech .................. [Disabled]
CPU Cores Enabled ............................ [All]
CPU Multi Threading .......................... [Enabled]
C3/C6/C7 State Support ................... [Auto]
CPU Enhanced Halt (C1E) ................... [Auto]
C3/C6/C7 State Support .................... [Auto]
CPU Thermal Monitor ......................... [Auto]
CPU EIST Function ............................ [Disabled]
Virtualization Technology ................... [Disabled]
Bi-Directional PROCHOT ..................... [Auto]


Uncore & QPI Features:
QPI Clock Ratio ...........................................AUTO
QPI Link Speed .............................. AUTO
Uncore Clock Ratio...........................AUTO
Uncore Frequency .......................... AUTO
Isonchronous Frequency ..................[Enabled]


Standard Clock Control:
Base Clock (BCLK) Control ................ [Enabled]
BCLK Frequency (MHz) ..................... 200
PCI Express Frequency (MHz) ........... [100]

C.I.A.2 [Disabled]

Advanced Clock Control:
CPU Clock Drive ..............................[800mV]
PCI Express Clock Drive ................... [900mV]
CPU Clock Skew ............................. [0ps]


Advanced DRAM Features:
Extreme Memory Profile (X.M.P) ......... [Disabled]
System Memory Multiplier (SPD) ........ [10.0]
Performance Enhance ...................... [Standard]
DRAM Timing Selectable (SPD) .......... [Expert]

Channel A + B + C

Channel A Timing Settings:
##Channel A Standard Timing Control##
CAS Latency Time ...................... 8
tRCD ....................................... 11
tRP ......................................... 8
tRAS ....................................... 28

##Channel A Advanced Timing Control##
Command Rate (CMD) ................ 2

Advanced Voltage Control:

CPU
Load Line Calibration ................. [Disabled]
CPU Vcore ............................... 1.275 [1.275V]
QPI/VTT Voltage 1.150v ............ 1.100V [1.350V]
(The QPI/VTT is the voltage you will need to find the precise amount necessary for your desired frequency)
CPU PLL 1.800v ....................... 1.800v [1.900V]

DRAM
DRAM Voltage 1.500v .............. 1.650V

Keep me posted on the results.

Thank you
GSKILL TECH

[GDabler]

thx for helping

after the save and exit the screen was black (the power was on in screen)
with the same settings i was trying to downgrade the BCLK Franquency from 200 to 170 (5 frenquncy every restart) and still nothing , most of the times it was restarting and the screen was staying black and some times turned on in safe mode settings

CPU Multi Threading .......................... [Enabled] ---> i have not this option!

Channel A + B + C ---> what u mean ?

Load Line Calibration .............. [Disabled] ---> my options was "Standard" "Level1" and "Level2" and i set it to Standard


with Auto the numbers was :
QPI Clock Ratio ...............................AUTO
QPI Link Speed .............................. AUTO --> 6.4Ghz
Uncore Clock Ratio...........................AUTO --> 16
Uncore Frequency .......................... AUTO --> 3.200

[GSKILL TECH]

Did you try increasing the QPI/VTT Voltage? That is the main voltage that you will need to test for your particular setup. What you can do is set it to 1600 first, check what AUTO sets it to, then work your way up to get a better idea of how much you actually need.

Thank you
GSKILL TECH