I have an AMD Phenom II 550BE which has the extra two cores unlocked and a Gelid Tranquillo mounted on a MSI 790GX-G65 with 4GB of G Skill DDR3 1333MHz Ram.
I have overclocked the CPU by using 225 clock speed and 16.5 multiplier giving 3.71MHz on all 4 cores.
At these settings the memory speed is 1500MHz but if adjust the Dram ratio to the next lower setting of 1:2.66 I only get a speed of 1200MHz. So far there has been no ill effects running at the higher frequency but I don't want to do long term damage. The system does benchmark better at the higher setting.
In the Bios there is a reference: 'Advance Clock Calibration' (all cores)
and underneath it defaults to: 'Value All Cores (-2% )
Could someone explain what this means and what happens if the value is adjusted either up or further down.
Also the voltages in the bios are:
CPU VDD Voltage (which I have adjusted to 1.4)
CPU-NB VDD Voltage (Auto)
CPU Voltage (Auto)
CPU-NB Voltage (Auto)
Dram Voltage (Auto)
NB Voltage (Auto)
HT Link Voltage (Auto)
SB Voltage (Auto)
What this relates to in AMD Overdrive is:
CPU VID 1.4
NB VID 1.15
Memory VDDQ 1.5
CPU VDDC 1.432
NB Core Volt 1.1
CPU HT Volt 1.2
I have run Prime 95 without any fails and all temperatures are good.
Should I adjust any of these values either in the Bios or via AMD Overdrive for long term reliability?
Sorry to be long winded but any advice would be appreciated.
I have overclocked the CPU by using 225 clock speed and 16.5 multiplier giving 3.71MHz on all 4 cores.
At these settings the memory speed is 1500MHz but if adjust the Dram ratio to the next lower setting of 1:2.66 I only get a speed of 1200MHz. So far there has been no ill effects running at the higher frequency but I don't want to do long term damage. The system does benchmark better at the higher setting.
In the Bios there is a reference: 'Advance Clock Calibration' (all cores)
and underneath it defaults to: 'Value All Cores (-2% )
Could someone explain what this means and what happens if the value is adjusted either up or further down.
Also the voltages in the bios are:
CPU VDD Voltage (which I have adjusted to 1.4)
CPU-NB VDD Voltage (Auto)
CPU Voltage (Auto)
CPU-NB Voltage (Auto)
Dram Voltage (Auto)
NB Voltage (Auto)
HT Link Voltage (Auto)
SB Voltage (Auto)
What this relates to in AMD Overdrive is:
CPU VID 1.4
NB VID 1.15
Memory VDDQ 1.5
CPU VDDC 1.432
NB Core Volt 1.1
CPU HT Volt 1.2
I have run Prime 95 without any fails and all temperatures are good.
Should I adjust any of these values either in the Bios or via AMD Overdrive for long term reliability?
Sorry to be long winded but any advice would be appreciated.
