**Official e8400/e8500 Retail OC Thread

[grimpy]

Ive got a Q77A761 E8400 and doesnt seem to be as good as lots on here,i think uk has got runt of the litter in terms of good batches.

i need nearly 1.4v (cpuz) just to get it stable at 4050.

[AriciU]

i dont mean to be a pain but i acnt see a thread for that? i see lots of individual ones?

Here you go -> http://www.xtremesystems.org/forums/...d.php?t=174547

Same batch

[Grnfinger]

[Origin_Unknown]

Here you go -> http://www.xtremesystems.org/forums/...d.php?t=174547

Same batch

sweet thanks -the irony is that i was looking at that thread

ill be happy with 4.5ghz i think

[AriciU]

sweet thanks -the irony is that i was looking at that thread

ill be happy with 4.5ghz i think

I hope you can get it stable at 4.5 for daily use if that's what you mean. From my testing i've noticed that this CPU batch really likes vcore. I can get it stable at 4.3 with 1.5v set in bios (1.48v real) and that's the max i want to use for air cooling. Mine needed around 1.55v or so real to get 4.5 stable and i think it's too high for daily use. Anyway, hope yours is better and your cooling is more efficient then mine.

[Shaggy]

Can whoever took the liberty of making this 'official' thread start documenting everything in the original post?

[Origin_Unknown]

I hope you can get it stable at 4.5 for daily use if that's what you mean. From my testing i've noticed that this CPU batch really likes vcore. I can get it stable at 4.3 with 1.5v set in bios (1.48v real) and that's the max i want to use for air cooling. Mine needed around 1.55v or so real to get 4.5 stable and i think it's too high for daily use. Anyway, hope yours is better and your cooling is more efficient then mine.

hrm, i was hoping to use 1.45v to be honest. lets just see anyway

[AriciU]

BTW, by stable i mean OCCT stable. I can setfsb my way to 4600 and do a quick superpi even at 1.4v

[mrcape]

gaiz - Here's a little comparison I threw into a graphic from the intel spec sheets for e6000 and e8000 series -



Now don't kill the messenger, but I wanted to save anyone who cares about intel specs the time of opening and scrolling two pdfs.

The max Tc for e6000 series is 60.1c for e8000 series it's 72.4c

So what does anyone think about max volts? I've read about two failures so far - one at 1.4v and another at unknown volts but it came back mysteriously. II'd really like to know how far we can push these suckers for 24/7.

[Origin_Unknown]

mrcape thanks for the post dude

dodgy name tho

[Origin_Unknown]

received mine today not had a chance to use it yet (ive a hang over )

anywho spec;

e8500
S-Spec; SLAPK
FPO#; Q745A554
Version #; E27437-001
max volt; 1.225v
pack date; 01/10/08

is that a good batch number? and the max volts cant be right?

my VID is 1.1125V

[Origin_Unknown]

just had my psu blow up so im not going to be able to test

[AriciU]

Ouch

[Origin_Unknown]

Ouch

you can say that again... whats even worse is that i don't know if its taken any of my components with it

[Mickey Padge]

Is it usual for one core to have a 4-5c difference in temp under load? I tried re-seating the EK block a few times, but it's always the same.

I also have the idle bug, one core never goes below 42c, the same one that has higher load temps.....

[Grnfinger]

Anyone have a stable 4500 and care to share there volts, ect?
After prime finnishes with my 4300 setup, I plan/hope to get a 4500 24/7 setting stable

[bf2142lol]

Come on push these CPU's, feed them voltage!!!! But really, It takes a real Idiot to fry your CPU that way, It's a risk who's positives outweigh the negatives, IMO. These chips run way cooler so thats another thing you've got on your side.

[Bail_w]

I am worried about the temperature more than vcore, my load temp at 1.4v with watercooling is 70 degree C...

[mrcape]

Hey Grnfinger,

No 4.5 stable but I have been there with 1.44vcore to creep around. I'm doing same as you now, finally Prime and Occt stable at 4.2ghz vcore = 1.43 - High!! But I have yet to back it off or fine tune.

What about a table or a template with voltages etc., so we can all compare results?

There's a thread doing just that at ocxtreme which might interest you -

http://www.ocxtreme.org/forumenus/showthread.php?t=2453

What are your voltages for 4.3 stable? What stability test method did you use?

[icywater]

here is my at 4.2GHz 1.368v

[mrcape]

It's bizarre how these chips differ so much with volts and temps. Icywater that's great 5 hours small fft. It's getting hot man! But I'm like you, more concerned with voltage on this chip.

Can I ask what is your FPO / Board / NBvolts / Pll ?

[PytonOrm]

Got This today http://valid.x86-secret.com/show_oc.php?id=303613

running with windows 2003 server and no mods.

[lowfat]

I am worried about the temperature more than vcore, my load temp at 1.4v with watercooling is 70 degree C...

what are you using to check your temperatures? Core Temp, if so what version?

[Origin_Unknown]

Got This today http://valid.x86-secret.com/show_oc.php?id=303613

running with windows 2003 server and no mods.

jesus! thats an amazing chip.

what fpo etc do you have?

[Bail_w]

coretemp 0.96.1 and everest