OC E8400 @ 3.00GHz

J

Jackman_737

New Member
Hello, My name is Jack and i'm a complete noob when it comes to OC.
I have read a lot of information over the internet and haven't found much of it to be useful. Sooo i thought i'd get a step by step intstruction from someone who knows what they're doing!!! Hopefully :P





Thats what i'm running and if you need anything else just tell me!
Thanks, Jack
 
we are running the same spec RAM and have the same CPU. all i did to get 3.6 was bump the FSB to 400. i changed voltage to 1.24 from my 1.192 stock.

i set it to 4.0 and my temps were fine, but i don't have overclockable ram and my motherboard doesn't have a divider for FSB:RAM so my system ram funky.

i would say 3.6 is plenty fast enough. i don't think any games will take advantage of anything faster than that. desktop applications will be another story but trust me, 3.6 is blazing fast as it is.

since you already have CPU-Z, download realtemp 2.70 as it is the only temp monitoring program that is accurate with the e8400. coretemp and speedfan both read way off the mark. once you have it to 3.6 or whatever you decide to go for, use orthos to stress test it for at least 12 hours to ensure it is stable.
 
haha lol... i understand most of that... lol :)

ok soohow do i change the FSB? I know its in the BIOS somewhere but where abouts? Also the voltage? Ok soo i'll download realtemp and monitor my temps? What CPU temp is bad? What should i be looking to keep it at?

Ok and what is Orthos??
 
You can get to 4.0ghz with no effort..

up your FSB to 445 or 446 with a 9.0 multipier ..

You will up your voltage to say 1.38-ish and thats about it..

e8400 overclocks by bascially changing 3 settings and rebooting.

I've never run orthos or any of that..I cant be bothered to waste that much time..
 
AS far as i can tell i can't change the multiplier. It's stuck at 6.0 multiplier!

How do i change the FSB and Voltage settings??? Where is it in the bios??
Also if i did change my voltage up to 1.38 ish and my FSB up to 445 would i have any cooling problems??

 
Okay what we need you to do is give us detailled list of your components..

motherboard type?
what case?
ram?
what cpu cooler?

You will need proper cooling before u o'c.
 
Last edited:
scooter said:
You will up your voltage to say 1.38-ish and thats about it..
Click to expand...

1.38 being run 24/7 will fry the chip pretty quickly (actual, not indicated VCORE). everything i have read is that the absolute highest vcore for a 45nm chip for 24/7 use is 1.365, and even that is pushing it.
 
Jackman_737 said:
AS far as i can tell i can't change the multiplier. It's stuck at 6.0 multiplier!

How do i change the FSB and Voltage settings??? Where is it in the bios??
Also if i did change my voltage up to 1.38 ish and my FSB up to 445 would i have any cooling problems??
Click to expand...


the 6 multiplier is because of speedstep, which can be disabled in the BIOS. basically it scales back your CPU whenever it is not fully needed, to conserve energy. speedstep and overclocking dont play nicely together so i always disable it.

your CPU has a 9x multiplier. whatever speed you decide to run, divide that speed in MHZ by 9 to get your FSB
 
DirtyD86 said:
1.38 being run 24/7 will fry the chip pretty quickly (actual, not indicated VCORE). everything i have read is that the absolute highest vcore for a 45nm chip for 24/7 use is 1.365, and even that is pushing it.
Click to expand...

Thats not true my friend.

You can run over 1.45 with no issue if you cool properly.

I've been running 4-4.2 for months now at or around 4.5
 
scooter said:
Thats not true my friend.

You can run over 1.45 with no issue if you cool properly.

I've been running 4-4.2 for months now at or around 4.5
Click to expand...

i think you need to re-read my post. ACTUAL vcore, not indicated. if you ran 1.45 actual, your CPU would be dead within a few months more than likely
 
ok i have an
advanced chipset options

and in that is multiplier and everything but how do disable speedstep?

Also DirtyD86 what have you got your settings at? I figure id you've got the same system as me pretty much i can at least guestimate at how far to push my settings!!

By the way i do appreciate everyones input
 
My motherboard has 3-step monitoring right on the board that indicates voltage like a stop light green, yellow, red.///red is crazy high and usually not good except for oc' benches..

Until I put voltage to 1.5 or higher that green light for cpu stays solid.

Northbridge and ram are also constantly monitored by their own stop-light setup on the mobo.
 
Jackman_737 said:
ok i have an
advanced chipset options

and in that is multiplier and everything but how do disable speedstep?

Also DirtyD86 what have you got your settings at? I figure id you've got the same system as me pretty much i can at least guestimate at how far to push my settings!!

By the way i do appreciate everyones input
Click to expand...

dont worry about speedstep for now, just focus on getting your FSB and vcore right. set your FSB to 400, and vcore to around 1.225. if it wont boot, up the voltage in increments.

dont set your FSB to 400 right away, up it by 10 at a time and test for stability. just take baby steps. realistically you could probably get away with immediately setting FSB to 400 and vcore to 1.25 and have no problems (which is what i did) but to cut down on potential problems, take it slow. especially if you are new to OCing.

so in a nutshell, all you need to be concerned about for now is

FSB (frontside bus)
vcore (your CPU voltage)
 
Jackman_737 said:
Ok so if i turn Speedstep off and put my multiplier up to 9.0??

What else do i need to do?
Click to expand...

forget i ever mentioned speedstep. just focus on FSB and voltage. don't worry about your multiplier, because it is locked and you can't change it.

all you need to do is slowly up your FSB in your bios, and then boot to make sure it is stable. do not increase by more than 10 FSB at a time. if you hit a wall and cannot go any further, slowly start bumping up your vcore until you get the balance right.
 
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