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Do i need to touch Southbridge voltages

post #1 of 8
Thread Starter 
I'm attempting to reach 3.5ghz on my sig CPU with an 8x multiplier.

I have the CPU at 1.35v (i'll bump it up later), Northbridge at 1.45v and memory at 2.1v.

For a CPU overclock, do i need to change voltages on my southbridge?
post #2 of 8
No you wouldn't have to.
    
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post #3 of 8
most times no
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post #4 of 8
i think you only need to touch the southbridge if you are using phase cooling or nitrogen. very highend stuff
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post #5 of 8
Thread Starter 
Okay, in that case, what sort of maximum voltage should I be putting through my E6600 to reach 3.5ghz then? Is 1.45v enough through the northbridge for a 440mhz fsb?
post #6 of 8
You might have to touch the voltage.

look at what others set. I know for my board (Maximous formula, not a P5B), "Auto" set the voltage to 1.01-1.05, and file transfers would get corrupted some times, and they were really slow. I then boosted the voltage to 1.1 to 1.15, and all those issues dissapeared.

Note: Prime95, Orthos, and memtest did not / will not catch that sort of instability.

Max voltage for the E6600 is around 1.55 (actual, so what you see in the BIOS and windows status, not what you actually set it to), however it really depends on what your cooling can handle. As long as the chip does not exceed around 60 degree's in prime or Ortho's, you should be good. however 1.47 will probably around your max for the temps.
    
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post #7 of 8
trueg50 where you upping the PCI-E frequency though?
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post #8 of 8
Quote:
Originally Posted by rx7speed View Post
trueg50 where you upping the PCI-E frequency though?
Not really (from 100 to 105 mhz), I think the main issue was the use of 2 drives in RAID, 1 other drive, and 1 optical, all SATA.
    
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