help me oc my E6420 Stable

[mccartfm]

Hi Lads,

I'm relatively new to this oc business but ive read up on a load of it.

My system is:

E6420
GeIL 2GB (2x1GB) PC2-6400C4 800MHz Ultra Low Latency DDR2 Dual Channel Kit (GX22GB6400UDC)
m Board: P-5N E Sli
Scythe Ninja B cooler
Seasonic S12 Powersupply 600W, 120mm

now where the fun starts.....

When i use Orthos i have got my cpu stable for 8hours at 3.2Ghz

but when i do the blend test it stops after a few minutes.

Now i have been messing around with settings in bios and here are a few screen shots.

Do you recommend i change any settings?

Also i have my v core set to 1.4V as can be seen in the attached images but in cpuz it shows it as 1.35v?

 

[Cob]

A lower vcore in Windows is normal due to vdrop and vdroop.

You probably just need a touch more vcore or NB voltage to get blend stable. Everything else looks ok. But I wouldn't be too worried about blend tbh. Small FFT stable is usually enough for every day running.

 

[El Jimben]

Try upping the vDimm a little, try 2.1v and then give blend a go again.

 

[Trill]

. But I wouldn't be too worried about blend tbh. Small FFT stable is usually enough for every day running.

I disagree with that Cob, failing a blend test is showing him that the system as a whole is not stable.

Increase the RAM Voltage to 2.1v.

Change the NB voltage to 1.4v~.

Run a blend test.

 

[mccartfm]

I disagree with that Cob, failing a blend test is showing him that the system as a whole is not stable.

Increase the RAM Voltage to 2.1v.

Change the NB voltage to 1.4v~.

Run a blend test.

Changed the voltages to those suggested above and i couldnt get past bios screen. These are the settings i used.

i then set vcore offset bak to auto and left nb vol at 1.4 and it wouldnt boot again,

and then i put nb volt to auto and vcore offset to +100mv and it still woudldnt post past bios...

 

[Trill]

Change the NB Voltage to 1.2v.
Change the RAM Voltage to 2.0v

Try and POST, if yes, try and Blend.

If it doesn't

Lower the FSB (QDR) by 10Mhz until it can blend for at least 1 hour.

 

[El Jimben]

Can you post a screenie of the memory tab of CPUZ? Maybe your timings are too tight.