**Official e8400/e8500 Retail OC Thread

[Mav451]

Damn. 2 guys with 4Ghz @ 1.28Vcore.
What batch do both of you have?

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

Damn. 2 guys with 4Ghz @ 1.28Vcore.
What batch do both of you have?

4GHz 1.224v with my 8400

[icywater]

Damn. 2 guys with 4Ghz @ 1.28Vcore.
What batch do both of you have?

FPO/batch: Q745A551.

thing i will run it at that 24/7, My Stupid P5B-D doesn't like anything over 445FSB with 4 dimms slot in use.

[Mav451]

FPO/batch: Q745A551.

thing i will run it at that 24/7, My Stupid P5B-D doesn't like anything over 445FSB with 4 dimms slot in use.

Haha, one thing to peak my curiosity - did you see the last 2 numbers on the bottom center of your chip? There's the boxy "bar code" symbol and then 2 rows of letters/numbers. What are your last two numbers on the 2nd row?

[icywater]

Haha, one thing to peak my curiosity - did you see the last 2 numbers on the bottom center of your chip? There's the boxy "bar code" symbol and then 2 rows of letters/numbers. What are your last two numbers on the 2nd row?

sorry i did not read it, here is all i can do with 4 dimm slots .

[Mav451]

Heh shucks. I'm just looking for empirical data on the wafer #'s. We could (or I could) build a database

[GOESA]

Mine is just bad I guess, gonna try some other stability tests, cant be right that I need 1.4375v for 4ghz too prime hmm.

/Grau

[sambir]

Mine would not even boot in windows at 1.288 volt 450x9. I have the 27/12/07 version with vid around 1.1115 or something. Have to look at it again.

[mrcape]

Q748A115 -

4.5ghz @1.44v - http://valid.x86-secret.com/show_oc.php?id=302165

Did some superpi 1m and 32m too but I'm too tired to get it out there. For me, anually setting the GTL with C-N's formula worked. Still need to fine tune and get orthos stable at the right spot.

Where is that Intel link that states the max vcore and temps on thee suckers?

[Zeus]

For me, anually setting the GTL with C-N's formula worked.

What is C-N's formula?

[Viss]

Zeus m8 whats the max FSB your E8400 wil do on air or water? Thanks

[derektm]

Q746A502 from NewEgg. Pack date 01/11/08. Needs 1.35v for 4 ghz Prime95. I'll be testing my Q746A381 later.

[Tancoll]

Got a Q746A381 Pack date 01/09/08. Not sure if I'm going to return it or not yet.

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

Got a Q746A381 Pack date 01/09/08. Not sure if I'm going to return it or not yet.

My Q746A474 Pack date 01/07/08 does 4.2GHz at 1.3Vcore. With a Vid of 1.100

[Viss]

Wish i could get 746 here, they seem to do rather wel indeed.

[Tancoll]

My Q746A474 Pack date 01/07/08 does 4.2GHz at 1.3Vcore. With a Vid of 1.100

Thats okey but I'm using a single stager so i prefer a really good CPU.

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

Thats okey but I'm using a single stager so i prefer a really good CPU.

Doen't your one do very well?

[Zeus]

Zeus m8 whats the max FSB your E8400 wil do on air or water? Thanks

540--no boot, 535--boot but windows won't load, 530--system reboots after 15minutes of Orthos.

I think 525 is about the max stable.

I'm really thinking about selling this one.

[sambir]

I sold mine. Im happy with my quad core

[pcfreak]

Hi mate,

Going by memory, the Q744A needed less voltage than Q748A. But Q748A hit higher FSB and was easier to overclock on P5B-D motherboard.

Had very limited time with them, so I cannot give you anymore useful information than that.

I hope you get a good one.

Thanks a lot for the info

[Chri$ch]

Why is this only a E8400/E8500 OC Thread?

here my first E8200 (Q745Axxx)

[Counter CS]

Anyone with Q750A ?

[Zeus]

Anyone with Q750A ?

Have you got one?

[CERO]

What Batch is better Q745A or Q746A for E8400?

[Zeus]

What Batch is better Q745A or Q746A for E8400?

Wish i knew, i think they're about equal.

How's yours?