Boas!!
Após alguns conselhos e posteriores tentativas, consegui finalmente passar dos 3100MHz. Tenho-o neste momento a 3400MHz, a correr Prime95, com as seguintes definições na BIOS (0803), e as temperaturas não passam dos 55ºC (full):
AI Overclock tuner: Manual
CPU Ratio Setting: 8X
FSB Frequency: 425
FSB Strap to North Bridge: 266
PCI-E Frequency: 100
DRAM Frequency: 1066
DRAM CLK Skew on Channel A1: AUTO
DRAM CLK Skew on Channel A2: AUTO
DRAM CLK Skew on Channel B1: AUTO
DRAM CLK Skew on Channel B2: AUTO
DRAM Timing Control: Manual
CAS# Latency: 5
DRAM RAS# to CAS# Delay: 5
DRAM RAS# Precharge: 5
DRAM RAS# Activate to Precharge: 15
RAS# to RAS# Delay : AUTO
Row Refresh Cycle Time: AUTO (defaults to 52)
Write Recovery Time: AUTO
Read to Precharge Time: AUTO
DRAM Static Read Control: Disabled
DRAM Read Training: AUTO
MEM. OC Charger: AUTO
AI Clock Twister: Moderate
AI Transaction Booster: 8
PULL-INS: All Disabled
CPU Voltage: 1.281
CPU GTL Voltage Reference (0/2): 0.630
CPU GTL Voltage Reference (1/3): 0.670
CPU PLL Voltage: 1.54
FSB Termination Voltage: 1.36
DRAM Voltage: 2.02
NB Voltage: 1.26
NB GTL Reference: 0.630
SBridge Voltage: 1.10
PCIE SATA Voltage: 1.50
Load Line Calibration: Enabled
CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
CPU Clock Skew: AUTO
NB Clock Skew: AUTO
CPU Margin: Optimized
Advance CPU Settings
CPU Ratio Setting: 8
C1E Support: Disabled
Max CPUID Value Limit: Disabled
Intel Virtualization Tech: Disabled
CPU TM Function: Disabled
Execute Disable Bit: Disabled
Espero que estas definições possam ajudar alguém tanto como me ajudaram a mim
Cumprimentos.