How about this E6750?

[mazda_wasabi]

CPU : INTEL C2D E6750
MB : GA-P35-DS3
PSU : Seasonic S12 II 430W
RAM : Transend DDR2 800 D9 1GX2

(In BIOS ) CPU Vcore:1.41


(In XP ) CPU Vcore:1.37
http://manchesterszh.myweb.hinet.net/fds222.jpg

(In XP ORTHOS) CPU Vcore:1.34
http://manchesterszh.myweb.hinet.net/fds111.jpg
http://manchesterszh.myweb.hinet.net/254345341.jpg

Can overlock for 4G??How much VCore??THX:)

[zsamz_]

try 3.8-9 with 1.42-6 first

[Solarfall]

if you have a good stepping i see how 4ghz is not possible, i would say that if your cooling can handle it something like 1.5-1.6v is the safest bet that you will get your cpu to 4ghz or very close to it.. :D

[RPGWiZaRD]

I learnt from my own sample it's very difficult to judge well they scale with voltage as mine did up to 3.36GHz at stock voltage which showed 1.33v and 1.31v under load in windows and 3.6GHz required 1.41v and it maxed out at 3.75GHz 1.52v, ie very bad scaling. Personally I was guessing I'd reach sth along 3.85~3.9GHz with mine when I saw it did 3.36GHz stable at stock voltage but seems it didn't be like that. :p:

If it's a new E6750 then 4GHz might even be possible with lower than 1.5v even, such results keeps popping up a little here and there now. 4GHz @ 1.4v stable is the best I've seen so far for E6750. :)

That G0 stepping CPUs keeps getting better and better it seems speaks well for upcoming Penryn chips too. :)

[mazda_wasabi]

try 3.8-9 with 1.42-6 first

1.45V (3.8G)can Use in XP,but orthos not stable,about 10 sec...:shrug:

1.5v (4G)It can't work anying :down:


if you have a good stepping i see how 4ghz is not possible, i would say that if your cooling can handle it something like 1.5-1.6v is the safest bet that you will get your cpu to 4ghz or very close to it.. :D

YES,mine cooling can habdle it very safest,but not water cooling:p:

[ArCElM]

I have one of these chips also

Abit IP35-E
E6750
Crucial Ballistix DDR2 800

I am finding it very hard to get 3.7 stable.

I have 1.49 set in the BIOS which in CPU-Z gives me 1.472 and then under load it goes down to 1.44v (vdroop)

RAM is at 450Mhz 4-4-4-8

This gives me a ROCK stable 3.6Ghz (450x8) which is fine.

But I am finding it really hard to get 3.7 ORTHOS stable even gave at 1.55vcore a shot (in bios so about 1.53 real and about 1.47 Load)

:(

[JoeBar]

My 6750 does about the same with yours. 3.6ghz rock stable with 1.45v but 3.7ghz is out of the question. Typical core 2 behavior.

[Nazu]

I have one of these chips also

Abit IP35-E
E6750
Crucial Ballistix DDR2 800

I am finding it very hard to get 3.7 stable.

I have 1.49 set in the BIOS which in CPU-Z gives me 1.472 and then under load it goes down to 1.44v (vdroop)

RAM is at 450Mhz 4-4-4-8

This gives me a ROCK stable 3.6Ghz (450x8) which is fine.

But I am finding it really hard to get 3.7 ORTHOS stable even gave at 1.55vcore a shot (in bios so about 1.53 real and about 1.47 Load)

:(
Just up the vcore until you get it stable. My E6600 does 3.7GHz 24/7 but requires 1.53v vcore (under load).

[ArCElM]

My 6750 does about the same with yours. 3.6ghz rock stable with 1.45v but 3.7ghz is out of the question. Typical core 2 behavior.


Just up the vcore until you get it stable. My E6600 does 3.7GHz 24/7 but requires 1.53v vcore (under load).

I think these are signs that 3.6 is the safe healthy limit for the chips we have, I will stick to 3.6 as having to jump from 1.44 (load) to 1.53 (load) for a 100Mhz increase is a huge sign, I am not complaining anyway, 3.6 is fantastic and I am really happy with that, I was just unsure if there was any more FREE performance I was missing out on due to lack of knowledge, I am of the mind if it will do it safely then why not!

[mazda_wasabi]

I think these are signs that 3.6 is the safe healthy limit for the chips we have, I will stick to 3.6 as having to jump from 1.44 (load) to 1.53 (load) for a 100Mhz increase is a huge sign, I am not complaining anyway, 3.6 is fantastic and I am really happy with that, I was just unsure if there was any more FREE performance I was missing out on due to lack of knowledge, I am of the mind if it will do it safely then why not!

yap! 3.6G is normal side dish:D

Safely using is very important

more higher frequency just need more chance...:p:

BTW,i think mine is not bad...:D

[ArCElM]

yap! 3.6G is normal side dish:D

Safely using is very important

more higher frequency just need more chance...:p:

BTW,i think mine is not bad...:D

I... didn't understand any of that.. :shrug:

[Pcuser]

Mine does 3.9 stable with 1.48 in Bios on air

http://i131.photobucket.com/albums/p318/crickey_photos/5hours39.jpg

@4G failed orthos after 15 min with same vcore .

Room temps 24 - 26 deg

[sdumper]

Very nice chip you have :)

[JoeBar]

Indeed... :)

[TI66ER]

must be catchin'.mine does 3.6ghz at 1.41vcore stable.the max ive had is 4ghz at 1.56vcore benchable using science mark 2 and 3dmark06.

i will try and see how well my chip scales tho',i'll try to get it to 3.7ghz just to see how high it needs the vcore raising to.

http://valid.x86-secret.com/show_oc.php?id=248440

pcuser,it says on the cpu-z shot,your pci-e link width is x4 not x16,why? you lowered it or sumthing?

mines fine upto now on 1.45vcore at 3.72ghz-
http://img.techpowerup.org/071014/cpu3.7.jpg

[Pcuser]

Some more quick tests

Max fsb with x7
http://i131.photobucket.com/albums/p318/crickey_photos/574fsb.jpg

Max fsb with x8
http://i131.photobucket.com/albums/p318/crickey_photos/44.jpg

I think i will have to wait for winter now ( or get better cooling) before i push it further :rolleyes: