intel c2d e7500 ocing [help] cant get 4ghz

[prophetd7]

Hi guys,

I can't OC my sig rig to 4GHz,
I tried with these settings:
CPU Vcore-----------1.4
CPU Termination-----1.3
CPU Reference-------0.848
MCH core------------1.3
DRAM voltage--------1.8

multi 10x and FSB 400
(also multi 11x and FSB 364)
its not working it freezes while booting windows
i wouldn't go with higher CPU voltage than 1.4v

my ideas are that:
1. cpu needs more voltage
2. mobo settings are holding me back im not very familiar with that
3. ram is holding me back (but why if it stays on default)

what do you think?

can you help me with mobo settings and ram timings ?

highest stable was 3.66GHz (11x333MHz)

Tnx

 

[RJARRRPCGP]

You need to lower the DRAM clock!

Please try 1:1.

 

[bennoculus]

As said above, lower your ram ratio to something in-range of what's rated for... Which is 800MHz.

You asked about memory timings. Look up your ram specs or look on the physical stick, more specifically on the sticker. Find our your stock timings and manually enter them into the BIOS. Most likely they are 4-4-4 or 5-5-5. You can do this before or after you get your CPU stable. Some say before, some say after.

 

[prophetd7]

i got my fsb:dram to 1:1 but 400x10 is not stable .... it cant boot the windows ... it freezes ....
ram 2x400fsb and cpu 10x400fsb then bus speed is 400 and rated fsb is 1600 i tried 7x400 with the same settings and its not working ...
now i'm at 11x333 = 3.67GHz rated fsb is 1333 fsb:dram is 1:1 ram 667 underclocked it booted win ...

 

[bennoculus]

What is your NB Voltage?

 

[prophetd7]

how can i see nb voltage ?

 

[bennoculus]

No. Go into BIOS and take a look.

 

[prophetd7]

these are voltages i can see no more than those ...
CPU Vcore-----------1.35
CPU Termination-----1.2
CPU Reference-------0.805
MCH core------------1.1
DRAM voltage--------1.8

now i'm at 11x333 = 3.67GHz rated fsb is 1333 fsb:dram is 1:1 ram 667 underclocked

but these: ram 2x400fsb and cpu 10x400fsb then bus speed is 400 and rated fsb is 1600 i tried 7x400 with the same settings and its not working