Overclocking The E8400

Bump.

Before the test, at idle:
Core 0 - 40C
Core 1 - 38C

1 Hour and 6 Minutes of Orthos:
Core 0 - 43C
Core 1 - 42C


Do my temps look good? Think I can hit 4.0GHz or higher with my current cooler?

And how high should I raise each FSB? like from 1600 to 1650, and increase by 50, until I can't boot, then up the voltage by one, until I can, and then repeat till 4GHz?
 
I'm going to clock the FSB to 1777 which is 4GHz ,if it doesn't boot or I get a BSOD while stressing it, I'm going to up the voltage by one.



What do you think?
 
Alright, so I changed my Ram settings, and tried hitting 1777 with several different voltages, from 1.3875, 1.39, 1.40000, 1.4065, 1.4185, and 1.42 I think.

All restarted before or on the desktop, and one froze on the desktop.



What do you guys think? Not enough voltage for 1777 *4.0GHz*, or I'm hitting a wall?



With 1777 and 1.39375V, I think those were the settings, I was able to boot up, and post on AIM, I sent my friend a message saying I hit 4.0GHz, and then it restarted, lol.


I'm currently running stable on 3.75GHz, I ran Orthos for about 10Mins fine.
 
I got to 4.05GHz, and then it either froze or restarted, and I was at a lower voltage, like 1.35, what's the lowest I should try?





Thanks.
 
How high though..

I mean I changed my Ram settings, should I try higher again?


What should the limit be, under 1.40000V?


Thanks.
 
just up the v a little and do your orthos tests again,if it fails again raise it a little more.

thats what i done on my C2D to get it stable,i also had to raise my memory voltage a little aswell though and its perfectly stable now.
 
You're going a bit too fast mate. Go in baby steps, checking for stability on each. The less you increase the CPU voltage the better.
 
Well I currently have it stable at 3.75GHz on 1.39V, it's currently at 1666 FSB, which is 3.75GHz, what are some baby steps to 1800, 4.05GHz?



Thanks.
 
Set your goal to 4.0GHz for example. Doesn't matter if the FSB is not even-number, I'd rather have the frequency be even (4GHz) LOL nevermind, either way it's fine! :P

Raise 5 at a time, you could do 10 as monkey said but you know, the smaller the steps, the easier to check for stability. It's a long process, well, may be a long process but it will be worth it. And remember, if you need 3 or more voltage bumps to boot, then you probably hit your FSB wall. OR you could raise your FSB voltage or NB voltage but I don't know too much about that.
 
Alright, well I tested and wrote down what voltages I had it at, and what happened when I tried to boot. I started at 1.34375V and went to 1.41875, FSB was at 1800, and all of them pretty much had the same problem, just at different times, I can post each one, if wanted.. Also, should I post my Ram link and my Ram settings in my Bios, to maybe help me figure this out?




Thanks.
 
I think your best choice would be to Google your CPU and Motherboard and find some OC Forums to see what settings are using with your same setup. I don't think many if anyone here has an E8400 and a 750i FTW.
 
Well, I found a Youtube video, with a guy overclocking an E8400 with a 750i mobo, and I followed his volts and stuff, I changed my Core FSB and Memory voltage from Auto to what the guy changed it to, and I changed my FSB to 1800, which is 4.05GHz, saved and booted up, and everything seems to be running stable, this is the farthest I've gotten with a 4.0GHz+ overclock. I've been running Orthos for 25 minutes now, and my temps have been spiking, but staying under 55C, they're around 50C now, but I'm looking into the the Electric Ultra HSF.



I plan on letting Orthos run for an hour or two.
 
I would highly recommend staying at or under 1.36v for day-to-day use. Also, keep an eye on the temps using real temp. To be honest, that voltage is a little high for 3.75Ghz. I know i have a "low voltage" chip, but im at 4.0Ghz fully stable at 1.23v.

Just keep an eye out for the temps, because in time most new chips "burn in" for about a month then require another small voltage bump to finish it off. For example, mine when from 1.216v up to 1.232v. After the "burn in" time.

Your problem could be your NB and/or ram settings. Manually set ALL the ram timings including the advanced timings, and you can try raising the NB (G MCH) voltage as well. What ram do you have? make sure the ram divider is appropriate for the memory speed. That can cause a world of issues.
 
I believe this is my Ram, http://microcenter.com/single_product_results.phtml?product_id=0259027

And I believe this is my PSU, http://www.newegg.com/Product/Product.aspx?Item=N82E16817152036&Tpk=raidmax


I ran Orthos perfectly fine for an hour and 26 minutes, then I went to play Crysis Wars, and it restarted while playing, so I tried it again, same problem, it restarted. So I upped the voltage to 1.37500V, and was able to play for longer than the first two tries, then it froze. So I upped the voltage a little to 1.39375V, and I got a red rectangle in the upper left, so..


I watched a video where a guy was overclocking his E8400 on a 750i board, so that's what told me to change my CPU FSB and Memory volts from auto.

I have the CPU FSB at 1.20V and Memory at 2.000V, and my FSB is 1800, what voltage should I try?



Thanks.
 
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