i got prime stable at 4158 with following settings:

CPU VID Control: 1.3625
CPU VID Special Add: 102.83
DRAM Voltage Control: 2.19
SB 1.05V Voltage: 1.15
SB Core/CPU PLL Voltage: 1.75
NB Core Voltage: 1.37
CPU VTT Voltage: 1.12
Vcore Droop Control: Enabled
Clockgen Voltage Control: 3.45v
GTL+ Buffers Strength: Strong
Host Slew Rate: Weak
GTL REF Voltage Control: Disable


Do you believe i am overvolting for this kind of overclocking the bold ones?
I have no clue what the special vid is, but I upped it a bit :p