sorry guys..i'm just wondering..how far vcore can be pump to max for E8400 E0 Stepping?

i'm just got my proc today...then OC to 4ghz @1.392v vcore...

Are you sure you need that much of voltage to get it stable at 4Ghz? Did you try reducing it a little and see if it helps?

aku guna 1.34v dah stable dah.

apa setting kau run??

wa punya quaddie memerlukan 1.3125v untuk 4ghz... lu punya e8400 patut dalam itu punya range... try turunkan itu vcore tengok .... btw u looking for blue ccfl??

@efilah,, pity u need high vcore for it @@ mine jz 1.175 to run 3.6ghz

This post has been edited by iBenQ: May 20 2009, 12:27 AM

i dont know..when run OCCT @1.34v..it's failed..so i increased again vcore..now stable vcore is 1.36v..will try to reude like hilmiangah said...

try 1.34v but with increase vNB.

ooo...ok but vNB is already 1.33v..then i just pump to 1.41v..let see what happen..

haha.my vid alone is already 1.25v. my dfi board cant set lower vcore than vid. =x how unlucky hoho

Why increase NB voltage so much? You only need to do it if you're running on a high FSB. I got my E8400 @ 4.2Ghz with 468FSB and I only need 1.312V for NB.

for me to run my E8400 @ 4500mhz, just need vNB at 1.20v

Does it pass Orthos Blend stable or OCCT?

u r so lucky use Vnb 1.2v. mine VnB is 1.26v while running 4Ghz.

@Bro Nidzamputra
i just undervolt Vcore to 1.34375v like hilmiangah said, it works..will do another lower voltage this night to test.

@clawhammer
why mine after some hours when restart running on 4.2Ghz fail. i mean the fail is appears of black screen and got sounds of Bippp... bip bip bip and after 3 sec bippp....then, what i do is reallocate the ram placement.. sometimes i need to take out my 1 stick of 2GB ram to run 4.2GHz..
what wrong? i done past prime test with 4.2Ghz last night.

my ram 2 sticks of 1GB 800mhz and 1 stick of 2GB 800mhz..

How about your other voltages, i.e. Vdimm, etc? Did you do "SmallFFT" or "Blend" test?

Vcore 1.34375v
vdimm 1.92v
1:1

i only running "Blend" test . is it enough only use "Blend" test alone (after running OCCT every increment)? sorry i m new on this thingy.
still on learning..

Why not you try to increase the Vdimm a little? I presume you're running 9 x 445 14-4-4-4? No worries, I'm new too so let's learn together

i m running 5-5-5-15 at vDimm 1.92v. i think will increase about 0.06v. any idea? 9x 450 = 4050MHz
to pass 4.2Ghz is difficult to me. 4.1Ghz mostly the same setting applied from 4GHz setting. only FSB need to change. (460x9 = 4140MHz)
i wonder my ram is the barrier gate to me or myself lack of skills?

Don't be nuts
5ghz is more of a suicide shot then anything
Hmmm highest on liquid i had seen stable is 4.8ghz but those are exceptional chip,this are normal chip so 4500mhz is about max stable and 4300mhz or so is the sweetspot

my vNB the lowest one is 1.30v...then the problem is value vcore add (special features )..i only pump 1.33v..then vcore add is enable...after i checked at CPU-Z it's show 1.36v..huhuhuhuh

my settings for 4.35GHz are :

FSB : 435
Multiplier : 10
CPU Core Voltage : 1.37V
CPU VTT : 1.2
VMCH : 1.1825
VDIMM : 1.89
All GTL Ref Settings : 0.63
C1E enabled
IEST enabled

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Added on May 20, 2009, 8:18 pmLINX and orthos blendtest stable..

This post has been edited by IcEMoCHa: May 20 2009, 08:18 PM

That's what I'm trying to say What's the point to compare a non stable settings with someone which is trying to get his processor to run stable at a certain speed I can also post a 4.8Ghz screenie and say I only need 1.45Vcore (if you get what I mean)