When OC'ing, Does VCore Have to be GREATER THAN QPI/DRAM Voltage?

[Baasha]

I was reading a couple of forums on OC'ing i7 950s and came across this tidbit of information:

"V-Core has to be greater than QPI/DRAM voltage or else instability will ensue."

Is this true?

I just made my first foray into OC'ing this week!

My specs are as follows:

Core i7 950 @ 4.01GHz @ 1.24V (V-core) and 1.3V QPI/DRAM.

My RAM is running at 1537MHz and my OC settings are:

BCLK: 191
Multiplier: 21

I ran Prime95 with no errors and OCCT also with no errors!

I want to try for 4.2GHz and then 4.4GHz stable but whenever I push my BCLK to around 200, I get BSOD. I am able to boot into Windows 7 x64 with BCLK of 199 but it BSODs about 5-10 minutes later.

I suspect I need to increase the V-Core and QPI/DRAM voltages? They are left alone at 1.24V and 1.3V respectively.

Can someone help me with getting full stability at 4.2GHz and 4.4GHz? Does my V-core have to be greater than my QPI/DRAM voltage?

SpeedStep is ON btw and so is HT.

I am using the Noctua NH-D14 btw.

Thanks.

 

[faxon]

Good god no, the voltage you give all but the single most modern ram would fry most CPUs really quickly

 

[SHAQ]

QPI voltage is supposed to be within .5v of RAM voltage. And that is almost never a problem unless someone puts 1.85v+ to their RAM. CPU voltage doesn't have any rules except don't exceed maximum voltage which is over 1.4v and less than 1.5v. I forget the exact number.

I wouldn't go over 1.3v on QPI, but you can try 1.3-1.35v on your CPU and see if it OC's more.