only when I turn off the socket power,
If the socket power is turn on,it can boot normally.

then see whether increase vcore can solve this or not?

Same,for both condition,
It is only okay if I not overclock the proc.

hmm, i dont know why this happen.
i just face the opposite case with you before,
but no idea also.

Probably mobo capacitor @ CMOS battery can't hold the charge any longer...

It's normal
Happened to both of my LGA775 motherboard,Abit IP35 Pro and DFI LP DK P45 T2RS Plus
This is called Double Boot
Don't need to increase vcore

Fuuhhhhhh!!!
I thought the board is faulty or what,
Also thought the bios is corrupt and flash with new bios.

Hey guys I was just wondering how high I should overclock my CPU speed. Since I'm a beginner I'm not so sure @@"

Motherboard : GA-EP31-DS3L
CPU: Intel Core2Duo E6300
Memory: Corsair XMS2 DHX -- 2GB Dual Channel
Intel Factory Heatsink

Also about VCore is there a formula to determine or just trial and error?
Thanks for the reply!

This post has been edited by thedufus: Jun 13 2012, 04:32 PM

Hi,I am also newbie,
look at your spec, first you need to change yours cooler since the stock cooler performance is already poor at stock condition.
then,your psu must be solid, I got experience overclock using cap ayam psu and the board is broke.
For the vcore,every chip is different (correct me if i am wrong) and the reason to tweak the vcore is to archive stability at during overclock at high frequency if the stock vcore is not stable.
and, during overclock what I read, we need to disable the power saving feature such as eist,thermal and sort of thing plus the vcore we manually enter.
Just some tips that i read in the internet.

ahh I see better determine PSU first? Thanks for advice

Look for thermal management, EIST and C1E function within the bios and disable all these.

Then start to lower multi to x8 and up the cpu frequency (usually between 200/266/333) to higher value. Best way to enjoice high fsb and good proc speed.

Use good cpu cooler and ensure sufficient airflow within casing to cool mobo chips and also other power components. Good branded psu should b sufficient.

Why do we need to disable this option?
What will happen if we enable this option?
Next question,
which one more faster
example q6600 has 6-9 multiplier,

333*9= 3GHz FSB 1333MHz
or
375*8=3GHz FSB 1500MHz?

Try run HyperPI for both setting.

higher fsb probably help abit.

As what i know and tested, most Core2 series runs faster with higher fsb for games. For surfing and others, its just pure proc speed and mem speed.

Most Core2 series are capable of FSB 1600 (400mhz). Majority of the E0 can hit higher with better cooling options. Had tried E6600 at FSB 2000. Awesome in games, although speed of proc was only 3.5ghz (500 x 7).

Does extension cable effecting vcore supply? Since i use it, FSB400 seems not stable even on 1.36V...
Last time can hit 412 with same vcore...

can be the silicon degrade also.

U mean processor silicon? Btw, my mobo just a month old...

If the extension cable size is smaller than the psu cable I think maybe can effect.Did you check the cable,is it hot or not?

Yup. The size is smaller than original PSU cable. But i never check the cable temp yet...