**Official e8400/e8500 Retail OC Thread

[cliffy]

A while ago people were posting about changing VID's, has anyone found out what is going on with this???

[RedBull78]

Just got my E8400 two days ago. Trying to find the max FSB without increasing the vCore one bit (set at 1.1v in BIOS). So far my results are 6x500, but I haven't stability tested it yet (hoping to find SS max FSB first and then work down). System is in the sig.

Ohh, also first OC related post

How much voltage r u applying on the NB and other chipset stuff.

[Ajarn]

How much voltage r u applying on the NB and other chipset stuff.

Auto's. I'll go check them though after my RAID is done being verified.

[HaTaX]

To finish off testing I reset everything to my 24/7 OC and did a couple of SuperPI benches. I'm hoping some other users can do me a favor and post their 1M and 8M times at 9x450 using similar memory timings or even with DDR3. I think my P5B Dlx is still competitive and I'm interested in finding out how it compares to some of the newer Intel boards when the clocks are more or less equal.

1M = 11.515s

8M=2m 28.937s

My times at 9x450 and memory at 5-5-4-12 are:

1M = 11.312s

8M = 2m 37.016s

Just obtained these results now, I didn't do anything while they were running, but I've got all my normal apps open.

[HaTaX]

True, for me as well stability and reliability of my machine is above all. I don't want a random crash EVER (been there, done that). So I'm willing to sacrifice a few percentage points of performance for stability

Completely agree, that's why I haven't gone much above 4ghz, that's where I wanted to be and stability was more important to me then another 5-10% in mhz.

Few things more irritating then having random problems with you computer, won't come out of power save after hours of sitting. Been burned before chasing what I thought was drivers / software only to find that the extra 10% put me on the edge with heat and just the room getting hotter tips the apple cart.

[Ajarn]

How much voltage r u applying on the NB and other chipset stuff.

Checked and these are my voltage setting in the BIOS:

SB 1.05V: 1.070v
SB Core/CPU PLL: 1.55v
NB Core: 1.33v
CPU VTT: 1.100v (CPU vCore: 1.13v)
Clockgen: 3.45v

[sonofander]

Got my e8400 yesterday and have been having a blast playing with this little piece of silicon

Batch# Q746A488 and its a good one!



now before the degredation police show up and give me what for for my vcore...

seriously, this chip only has to last me a week before my 9650 gets here, so I'm just having fun... I figure under 1.5v for 24/7 will get this chip through the next week right???

I'll let you guys know how it goes

[Damien]

yeah but might as well save the life and sell it...

[sonofander]

yeah but might as well save the life and sell it...

or perhaps I can single handedly dispell or prove a much speculated idea that these chips are falling apart in our little overclocking hands

[PhilDoc]

or perhaps I can single handedly dispell or prove a much speculated idea that these chips are falling apart in our little overclocking hands

Imho, your chip will be just fine for a long time to come, but I don't think that'll change anyone's mind. Nice overclock

[sonofander]

Imho, your chip will be just fine for a long time to come, but I don't think that'll change anyone's mind. Nice overclock

that would be my guess as well...

Thanks man

[nama]

yea nice, let us know how it goes. tortured mine a full week around 1.425 - 1.45v and its still kickin a**s.. please post back your settings when successful. i personally think these badboys can do 24/7 @ those volts. i want 4.5ghz. nothing less. voltage isnt an issue for me. this is an experiment and my chip dying is just part of the experiments running cost lol. we are overclockers. where is the fun in playing safe lol. am new @ xtreme and was very disappointed to see how un xtreme most users are. talk about irony. i wish someone could start a new thread saying extreme Ocing of these chips.

[HousERaT]

Got my e8400 yesterday and have been having a blast playing with this little piece of silicon

Batch# Q746A488 and its a good one!



now before the degredation police show up and give me what for for my vcore...

seriously, this chip only has to last me a week before my 9650 gets here, so I'm just having fun... I figure under 1.5v for 24/7 will get this chip through the next week right???

I'll let you guys know how it goes

Looks good. What are your settings in bios for that overclock?

[sonofander]

NB @ 1.57
PLL @ 1.5
FSB @ 1.3
vcore @ 1.5 (1.48 real)
all other volts @ auto

Not sure what else to tell you...

[Mysterfix]

I finally got around to doing my 24hr. stability run! Keep in mind that this is what I have been running this chip at for a few weeks now, under water without any issues. My chip is definitaly not having any kind of issue with the voltage degrading my OC. This is at 1.45v and no vdroop under load, measurement was taken with a DMM.

[cadaveca]

Not really, do you walk to work? Computer worth more then your car??

That's called $50 socks and no shoes.

Nope, I drive about half the time. I got an 84 Buick Cutlass w/442, guzzles the gas. City I live in has population of just over 1 million...transit sytem is pretty good.

When my best man's father died, I got the car. Long story, but the original onwer lives on through the car, so it's not a daily driver.

Sure, the car is WORTH more, but it COST me nothing, other than the $800 a year for insurance. I'll spend that on my pc every two months!

I don't use credit, either, so buying a new car just doesn't appeal to me...insurance would cost more!

Anyway, I can't have my pc crash doing a render...some take many hours, so I prime for that long. If it passes prime, It'll render without issues, at least so far.

Call it what you will, it's obvious you and I aren't gonna agree, so I'll not waste any breath and discuss this with you further. I do alot of things backwards from some people...it's 10:00pm, and I'm about to go to work...Have a good one!

[Damien]

just tried a quick voltage bump out of boredom and booted this no problem. seriously these chips rock.

http://valid.x86-secret.com/show_oc.php?id=314803

[jcniest5]

Has anyone found out how to fix this temperature stuck on the two cores yet? Right now, my Q746A483 has a stuck temperature of 42 for core1 and 40 for core2. CPU temp is way below motherboard temp, which I know is false. If I run torture test on them, they will go up but they never go below the temp above even when they are idle.

[jcniest5]

Where do you guys get CPUZ 1.44.1? I only see 1.44.

[squito]

To finish off testing I reset everything to my 24/7 OC and did a couple of SuperPI benches. I'm hoping some other users can do me a favor and post their 1M and 8M times at 9x450 using similar memory timings or even with DDR3. I think my P5B Dlx is still competitive and I'm interested in finding out how it compares to some of the newer Intel boards when the clocks are more or less equal.

1M = 11.515s


8M=2m 28.937s

We can do that when our RMA'd IP35 Pro shows up - here's our Commando @ 5-5-5-15 on Vista 64

1M = 11.607s


8M=2m 36.702s

[Damien]

Where do you guys get CPUZ 1.44.1? I only see 1.44.

http://www.cpuid.com/download/cpuz_144.zip

google is your friend

[jcniest5]

just tried a quick voltage bump out of boredom and booted this no problem. seriously these chips rock.

http://valid.x86-secret.com/show_oc.php?id=314803

I wished I had exchanged my Q748A223 for one like yours (which I saw two of them). Instead, I did it for a Q746A483 and I couldn't even boot at that setting. I even tried a suicidal Vcore of 1.7V and the system can't even boot to Windows. How very unlucky I must have been with these technie thing!!!

[Ajarn]

Well, it seems that 510mhz is the highest FSB I can archive without touching the vCore (unless I start messing with some more chipset voltages). Only voltage changed was CPU VTT, and that was to 1.267. Now to see max FSB with touching vcore

[Ajarn]

Well, found the highest FSB (though probably not stable, just enough to post this) that I'm willing to push to.

BIOS Settings:
VID Special Add: 250mV (Translates to 1.44v in BIOS/1.456 in CPU-Z)
SB Core/CPU PLL: 1.55v
NB Core: 1.50v
CPU VTT: 1.600v
Clockgen: 3.45v

Final FSB: 525mhz

[HDCHOPPER]

nice! but what will that voltage get u for core speed ?