**Official e8400/e8500 Retail OC Thread

[GLENBOY]

nice one forsaken whats the fpo batch code again a low vid chip 1.0375 same as sepanders higher up

[Zucker2k]

P35 does ok.Open window.Water cooled.dinos22,guess the ambient .

How ya doing buddy? I see you beat my 4.608Ghz P95 run. Nice cpu you got there. Let's see what the temp cops have to say about this one...

[Arcanedeath]

Welp still working on mine Sadly only 6hrs prime stable at 1.304, almost 11 hrs before it fails at 1.312 trying 1.320 (1.34225 bios) now been going about 1/2 hr so far
this is at 450x9 for 4050 its it moves between 53C and 58C while under load core 1 is usually 1 to 2 degress lower than core 0 but core 1 seems to be the one failing Prime 95, kinda sucks as I guess heat isn't the issue in this case Its cold in Ohio today lol

[Forsaken1]

nice one forsaken whats the fpo batch code again a low vid chip 1.0375 same as sepanders higher up

Thanks mate.
From Microcenter
Q745A372
12/20/07
Running prime at 523x9 4707.Almost a hour so far.Will update if/when i get to 4hrs prime stable.

Edit:Good buddy(zuck) and yourselfe?Thx for the volts tip.Just had to find some intestinal fortitude with uping the cpu volts.

[Zucker2k]

Does not seem a great cpu! Can only go about 4.6 but with very high Vcore and my WC setup heats up past 65'ish! Also, Have tried to up the volts to 1.6 and I still cannot reach 4.7G

I am 4.3G Vcore 1.36 prime stable with 50ish & core1 56 core2 51 temps on load.

You'll need to get better cooling to run at volts that high, then you can clock higher.

[GLENBOY]

Thanks mate.
From Microcenter
Q745A372
12/20/07
Running prime at 523x9 4707.Almost a hour so far.Will update if/when i get to 4hrs prime stable.

Edit:Good buddy(zuck) and yourselfe?Thx for the volts tip.Just had to find some intestinal fortitude with uping the cpu volts.

thanks forsaken keep us informed, it seems looking at this thread the fpo batch q745A ones all seem to do a bit better at lower volts as well and sepanders q746a one

[Zucker2k]

Thanks mate.
From Microcenter
Q745A372
12/20/07
Running prime at 523x9 4707.Almost a hour so far.Will update if/when i get to 4hrs prime stable.

Edit:Good buddy(zuck) and yourselfe?Thx for the volts tip.Just had to find some intestinal fortitude with uping the cpu volts.

You're welcome. I'm tweaking for efficiency now at 4.5Ghz (9x500) for 24/7 on my Max Formula; numbers are looking good.

[Retro]

no T on my Chip. I am from Australia.

Thanks for the info X.T.R.E.M.E._ICE
Guess that is enough from me about the "T" thing. Anyhow, I finally got my E8400 installed and I'm gradually bumping it up. Was able to get to 3807MHz on stock volts, now I'm having to bump up the juice to go beyond. Got a ways to go, 4GHz here I come.........................
Update: Now running @4050 1.328v still Prime testing.

[loopy83]

maybe anybody can collect all results in the first post for better overview?
that would be great.....

[GLENBOY]

maybe anybody can collect all results in the first post for better overview?
that would be great.....

agreed with batch codes , overclocks , benchmarks used for stability super pi, 3d etc and volts and cooling used that would be great

[mystupidmouth]

Received my E8400 yesterday. Doesn't seem to be doing well as some, but good enough for me.

So far running Orthos @ 4GHz, 1.425V. Will boot to Windows @ 4.5GHz, 1.45V, but locks up after a few seconds of Orthos.

Batch is Q740A525T from NCIX.

I have the same Batch as you and im able to run it at 4ghz @ 1.35 vcore.

[Supertim0r]

see ?

most people running P35 need higher vcore for lower overclock

[mystupidmouth]

see ?

most people running P35 need higher vcore for lower overclock

Are you talking about my screen shot ?

[Zucker2k]

see ?

most people running P35 need higher vcore for lower overclock

I need 1.240v for 4Ghz P95 small ftts stable.

[aoch88]

I have an E8400 but my VID is 1.1xxx VID which is a poor OC-er compared to some of us here which has 1.0xxx VID.

On a Foxconn Mars, I need 1.425V to get it stable at 4.05Ghz. This is terribly bad and can someone tell me if I'm getting this right?

[X.T.R.E.M.E_ICE]

see ?

most people running P35 need higher vcore for lower overclock

Thats not true . I use 1.2v for 4ghz on my P35.

[Retro]

Thats not true . I use 1.2v for 4ghz on my P35.

There's something about those Aussie chips

[X.T.R.E.M.E_ICE]

There's something about those Aussie chips

[Supertim0r]

Thats not true . I use 1.2v for 4ghz on my P35.

Asus ? ...or DFI ?

[X.T.R.E.M.E_ICE]

Asus P5K-E P35 4GHz 1.216v
Gigabyte P35 DQ6 4GHz 1.200v

[laragirl83]

I'm gonna use my good old P5B Deluxe mobo for my new, upcoming E8400, will see how it performs! I will go for 9*500MHz... The mobo can do 500fsb for sure, now its all up to wolfdale!

[Retrolock]

you guys are freaking lucky with your vcore. I dont know whats wrong with mine coz i need 1.35v just to boot 9x450 lol. Maybe i need to relax ram timings a little.

batch Q946A446 if i remember correctly

[aoch88]

you guys are freaking lucky with your vcore. I dont know whats wrong with mine coz i need 1.35v just to boot 9x450 lol. Maybe i need to relax ram timings a little.

batch Q946A446 if i remember correctly

I have the same issue on my Foxconn Mars. My chip does 9 x 450 with around 1.35V. I believe some E8400 has higher VID that the others hence impacting the overall overclockability.

Anyone else can confirm this?

[mrcape]

Some are worse than others but I really gained a lot by messing with VTT and GTL settings.

[aoch88]

Some are worse than others but I really gained a lot by messing with VTT and GTL settings.

You mean increasing the NB voltage and VTT would allow the CPU to overclock at a lesser Vcore? What's GTL? SB voltage?