EP45-UD3P Benches 3D at 670mhz+ FSB

[Alcibiades]

Does your ram fail blend if MCH ref is at 0.760 ? I have packaged the cpu for sale atm as i have given up, but if yours also fail at 0.760 i might give it another try.

Yes it would fail and was very unstable with higher MCH Ref.
I built this for my friend, so it's not mine, but i believe i couldn't boot into windows properly, as some startup objects would fail to load properly, like kaspersky and vista sidebar gadgets would crash.

Bios settings You will notice that some voltages entered in bios, give a completely different value in ET6.
MCH Ref of 0.723V entered in bios, gives me 0.660V in ET6



FYI, this overclock would intermittently revert back to default bios settings when the pc was started from a shutdown state.
Reloading the settings from a saved profile would boot into windows every time though.
I have since changed the overclock to: 7.5x 500FSB for 3,750Mhz, DDR2 1200Mhz using 2.40B x
vtt down to 1.30V, PLL down to 1.50V, Vcore down to 1.3625V
ROCK SOLID now.

P.S. Looking at your memory timings, it seems you are letting the bios take care of the memory settings.
I would change all mem timings/subtimings manually to this: (for starters)

DRAM Timing Selectable ................: [Manual] [Auto]
Standard Timing Control
CAS Latency Time........................: 5
tRCD .........................................: 5
tRP'...........................................: 5
tRAS..........................................: 18
Advanced Timing Control [Press Enter]
tRRD...........................................:4
tWTR..........................................:4
tWR............................................:8
tRFC...........................................:42
tRTP...........................................:4
Command Rate (CMD) ....................:Auto
Channel A
Static tRead Value.........................:10
tRD Phase0 Adjustment..................:Auto
tRD Phase1 Adjustment...................:Auto
tRD Phase2 Adjustment .................:Auto
tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:9
Twr2wr(Different Rank)...................:9
Twr2rd(Different Rank)...................:8
Trd2wr(Same/Diff Rank)..................:10
Channel B
Static tRead Value.........................:10
tRD Phase0 Adjustment..................:Auto
tRD Phase1 Adjustment...................:Auto
tRD Phase2 Adjustment .................:Auto
tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:9
Twr2wr(Different Rank)...................:9
Twr2rd(Different Rank)...................:8
Trd2wr(Same/Diff Rank)..................:10

P.S.S. Is your flex kit 2x2GB or 4x1GB? If it's the latter, try with just the two ram modules as a test.