LLC is enabled after i lower the Vcore after OC.. remember i said without LLC i need a higher Vcore to get stable.. LLC enabled, i m able to achieve a stable lower vcore..

the fluctuate onli occurs recently.. or mayb i notice it recently cz my systems shown some instability.. but i run stress test, everything seems fine..

Hello, long time no see



I can do 4GHz, but I don't like the voltage. I am still looking for my lowest stable voltage when running 3.8GHz

I just briefly type 'fluctuating Vcore' on the the good ol' Google and the results are plentiful, vary from the problem causes by an OC rig with bad casing airflow, to PSU ratings, to capacitors of the mobo has worn off resulting instability to the voltage supplied to the proc, etc.
There's more answers out there (for your situation) than in this thread alone bro, so surfing around the web might be more fruitful at time to time....

i m having study break now, so OC settings will not benefit me in the mean time.. will continue to run at default until i finish exams..

been thinking of changing PSU for quite some time..

Mine stable with 3.8ghz @ 1.31ghz
But to be stable for 4ghz(400 x 10), I have to bump up to 1.41v Thats a full 0.1v just to increase a mere 0.2ghz..so no point really.
I haven't given up though by lowering the FSB to 380, and multi to 10.5, but manage to stabilize it to 1.38v only.

IMO, anything above 1.3625v seems unnecessary for 24/7 (on 45nm) and desperate if you want to show off to you peers , but for benching, once I briefly pump the E7400 to 1.45v, thats unrecommended, but like I said, for benching only.
I hit 4.2ghz that time but I never posted it on LYN because I never documented it (screenshots, prime95, etc.) for proof/evidence, and don't want to bench it that far ever again because it WAS a scary experience.. (constantly in my mind thinking if the proc ever gonna die on me... )


Anyways bro, I believe you can get much lower vcore for 3.8ghz, keep us updated with your progress
Since this it like a lottery, I will place a bet on 1.34v

Like I said, I was still looking for my lowest stable voltage

Well, you lose on the bet, I am running 1.328v stable Still, not as good as your chip

Lost bet
U cheated bro, I thought you gonna go for 400 X 9.5
Anyways 1.328v is a good result
U can go lower i think, but IMO i like to at least have a margin of 1 increment between the lowest stable voltage possible and instability...meaning my true lowest stable is 1.30v but I bump 1 increment to 1.31v.

Man my chip is not that good, its an angel at 3.8ghz, but a true deep~in~the~gut devil at 4ghz.

3.8 to 4ghz normally require more voltage not worth it..

Yup, I tested 3.8ghz and 4ghz on SuperPie, 3Dmark Vantage and 06', etc. The difference are in the realm of 'micro'..
So 3.8ghz @ 1.31v VS. 4.0ghz @ 1.41v, is obvious who is the real winner. But thats just my E7400, most probably there's couple of E7400s out there can manage to stabilize 4ghz under at least 1.3625v...

if less 1.4v is ok.. some need >1.45v..
wish u luck..

hi guys,
i got 3.6ghz on my e7400 @ 1.256v. prime stable for 4+ hours. tried to go further but it wont post




Attached thumbnail(s)

how bout using diff multipler or FSB? pump more vcore?

wat's the vcore u set in bios?

tried a few different setup, still failed. got frustrated and tried up all vcore, vmem, MCH, and VTT voltage to dangerous levesl, but still cant boot even at 400x6. i guess that's pretty much for my entry level board; p5kpl-am

p5k.. no wonder.. was gonna ask wat mobo u using..

anyway, wat vcore u set for this 3.6?

last time i set 400x9, can boot and stable at 1.31V if not mistaken..

i set it AUTO. the next increment is +50mv, which is higher than auto.
lucky for u, mine cant ler.

try use manual setting.. i will say, try voltage around 1.27 or 1.28V for the same settings and see how it goes.. auto usually not so stable..

tried the max vcore avail in bios; +150mv
at 1.45 vcore still cant boot. time to change

just found this thread..but oredi open new topic at technical help..need guru's to solve my prob here..thanx in advance..

http://forum.lowyat.net/topic/1287855

A lot of gurus already helped you over there.

-pWs-

yesterday manage to push mu e7300 till 3,0ghz.. havent change my psu yet but here is the settings.

vcore=1.265v
multi=10 x 300
ram= hyperx 1066 running at 900mhz now> 5-5-5-15
vdimm=2.1v
FSB:DRAM= 2.3

idle temp=38c
load=forgot to see.. =p

giga board is so confusing when setting the multi for Rams.. im confused coz its categorize based on the fsb u set.
4 option available.= A.266,B.333,C.200,D.400.. i choose the A option, dunno whether am i right or not.. but hey it BOOTS!

stress test 3 hour no problem.. any tips?

This post has been edited by evoangel: Jan 12 2010, 10:07 AM