- Joined
- Jan 25, 2012
Greetings,
I need some help to overclock my system stable @ 3.4 Ghz 8GB Memory @ 1600Mhz . Every time I run prime95 keeps throwing errors by the first few seconds
Specs:
CPU: Intel Core 2 Quad q9550 2,83Ghz C1 Revision
MB: ASUS P5E3 Premium WiFi AP@n (uses DDR3 memory)
RAM: 2dimms x 4GB Kingston Genesis 1600 - 9-9-9-24 1.65v dual channel
BIOS SETTINGS
--------------------------------------------------------------------------
FSB Frequency: 400 Mhz
FSB Strap to NB: 400 Mhz
CPU Multiplier: 8,5
DRAM Frequency: 1600Mhz
DRAM Command Rate: 2N
DRAM CMD Skew on Channel A: read below*
DRAM CMD Skew on Channel B: read below*
DRAM CLK Skew on Channel A: read below*
DRAM CLK Skew on Channel B: read below*
DRAM CTL Skew on Channel A: read below*
DRAM CTL Skew on Channel B: read below*
DRAM Timing Control 9-9-9-24 (Rest left to auto)
DRAM Static Read Control: Auto
DRAM Dynamic Write Control: Auto
Ai Clock Twister: Auto
Ai Transaction Booster: Auto
CPU Voltage: 1,30625V
CPU GTL Voltage Reference (0/2): Auto
CPU GTL Voltage Reference (1/3): Auto
CPU PLL Voltage: 1,58V
FSB Termination Voltage: 1,24V
DRAM Voltage: 1,66V (no option for 1,65)
NB Voltage: 1,45V
NB GTL Voltage Reference: Auto
SB Voltage: 1,05V
Clock Over-Charging Voltage: Auto
Load-Line Calibration: Normal
CPU Spread Spectrum: Auto
PCIE Spread Spectrum: Auto
CPU Clock Skew: Delay 300ps (read below)*
NB Clock Skew: Delay 300ps (read below)*
So, by these settings, running the small FFTs test for a couple of hours , no problems detected. When I run the large FFT tests on prime that involve more RAM testing as it says the workers report problems immediately
******
I have tried increasing the voltages on CPU - PLL - NB - DRAM to no effect. By reading this thread the guy says about tweaking the CPU + NB Clock Skew to 300ps for the FSB ratio I'm using, although the DRAM Skew controls are far too many step combinations to try!
Any ideas?
Thanks in advance
I need some help to overclock my system stable @ 3.4 Ghz 8GB Memory @ 1600Mhz . Every time I run prime95 keeps throwing errors by the first few seconds
Specs:
CPU: Intel Core 2 Quad q9550 2,83Ghz C1 Revision
MB: ASUS P5E3 Premium WiFi AP@n (uses DDR3 memory)
RAM: 2dimms x 4GB Kingston Genesis 1600 - 9-9-9-24 1.65v dual channel
BIOS SETTINGS
--------------------------------------------------------------------------
FSB Frequency: 400 Mhz
FSB Strap to NB: 400 Mhz
CPU Multiplier: 8,5
DRAM Frequency: 1600Mhz
DRAM Command Rate: 2N
DRAM CMD Skew on Channel A: read below*
DRAM CMD Skew on Channel B: read below*
DRAM CLK Skew on Channel A: read below*
DRAM CLK Skew on Channel B: read below*
DRAM CTL Skew on Channel A: read below*
DRAM CTL Skew on Channel B: read below*
DRAM Timing Control 9-9-9-24 (Rest left to auto)
DRAM Static Read Control: Auto
DRAM Dynamic Write Control: Auto
Ai Clock Twister: Auto
Ai Transaction Booster: Auto
CPU Voltage: 1,30625V
CPU GTL Voltage Reference (0/2): Auto
CPU GTL Voltage Reference (1/3): Auto
CPU PLL Voltage: 1,58V
FSB Termination Voltage: 1,24V
DRAM Voltage: 1,66V (no option for 1,65)
NB Voltage: 1,45V
NB GTL Voltage Reference: Auto
SB Voltage: 1,05V
Clock Over-Charging Voltage: Auto
Load-Line Calibration: Normal
CPU Spread Spectrum: Auto
PCIE Spread Spectrum: Auto
CPU Clock Skew: Delay 300ps (read below)*
NB Clock Skew: Delay 300ps (read below)*
So, by these settings, running the small FFTs test for a couple of hours , no problems detected. When I run the large FFT tests on prime that involve more RAM testing as it says the workers report problems immediately
******
I have tried increasing the voltages on CPU - PLL - NB - DRAM to no effect. By reading this thread the guy says about tweaking the CPU + NB Clock Skew to 300ps for the FSB ratio I'm using, although the DRAM Skew controls are far too many step combinations to try!
Any ideas?
Thanks in advance
Last edited: