Back again - still struggling at 2T.
GTL voltage steps are different for each core...46 - 52 - 56 are the increments available to set.
Won't get into windows at 4GHz with either 8 or 9 multi with less than 1.625V core in BIOS (Probably nearer 1.6V accounting for vdroop) and at 1.6375V, the BIOS voltage monitor AND CPU-z (1.4.8.0) report 1.68V Vcore
Under clocked RAM to 1000MHz from the stock speed of 1333MHz. No different. Cant see any of my components being the weak link.
Any ideas webbo?
FULL list of components as follows mate:
Akasa Eclipse 62 Case
Antec Quattro 850W PSU
Striker II Extreme 790i Ultra (BIOS 1104)
4 X 1Gb Corsair XMS DDR3 1333MHz
Gainward GTX 280
X-Fi Fatality
2 X WD Raptor 150Gb Striped RAID (0)
1 X WD 400Gb SATA II (Storage)
1 X LG Bluray/ DVDRW Combo
CPU Details posted above
Swiftech GTz CPU Block
Swiftech Tripe RAD (3 X 120mm)
Swiftech (Laing) MCP 655
1/2 Tube
NB Fusion block watercooled
Asus VRM fans both in place
Antec Spot cool
Last night, it would run the Far Cry 2 benchmark no probs at all at 4GHz - seems to crap out on CPU test in 3DM06 though.
After 10 runs of Far Cry 2 bench, temp maxed out at 47 degrees so heat can't be an issue.
Either I'm missing something or I've pushed it as far as I can