Core i7/X58 Overclocking Thread

[initialised]

I love XS! An X58 overclocking thread before the Core I7 NDA is even lifted!

Well someone had to start it. I'm guessing that this thread will eventually become part of the ** Oficial ASUS P6T Overclocking Thread **

So far I am happy with the OC performance of the board and CPU but not so happy with the cooler, basically as soon as I launch Prime95 the temps leap 40-50C and the system crashes. On the bright side the XSPC Delta bracket turned up so it'll be getting proper cooling soon.

On (crappy) AIR COOLING
Best POST at 4.44GHz
Into Windows at 4.2GHz

[mibo]

On (crappy) AIR COOLING
Best POST at 4.44GHz
Into Windows at 4.2GHz

That's by changing cpu multi I guess.
Because the unlocked cpu is too expensive, I would like to know what frequency you can reach without cpu multi. Just raising the base frequency...

[initialised]

That's by changing cpu multi I guess.
Because the unlocked cpu is too expensive, I would like to know what frequency you can reach without cpu multi. Just raising the base frequency...

No, both of those were with the multi knocked down to 20. Base clock goes up to 200 easily and you can probably guess what the most I got out of it was.

As for comparisons to Core2 Quads, they are both 45nm with High-K gates and they clock about as well as each other the unanswered question for me is the performance improvement from the Ci7 architecture, SMT & Tri Channel memory.

[IN7OX]

mbs in stock but way way way overpriced
http://www.overclockers.co.uk/showpr...1283&name=Asus P6T Deluxe "OC Palm Edition" Intel X58 (Socket 1366) PCI-Express DDR3 Motherboard
dont think ill bother yet
also they dont have chips yet so whats the point

[mesyn191]

the unanswered question for me is the performance improvement from the Ci7 architecture, SMT & Tri Channel memory.

You'll only see big performance improvements (ie. 10% or greater) with Nehalem if you run software that makes proper use of 4 or more cores vs. current chips. This is what some have been alluding to by saying it won't be that great vs. current chips for gaming, performance will probably be almost equal on a per clock basis. The only games where this might not be true are UE3 based games since that engine supposedly is the most rigorously multi-threaded out there ATM. Allen Wake should benefit quite a bit too when being ran on Nehalem vs. current quad core chips. Since over clocks aren't all that much better either if you've currently got a quad or even dual core chip at or over 3Ghz Nehalem probably won't be worth it for you're average gamer until it gets (much) cheaper and/or agressively multi threaded software becomes common place.

Where Nehalem will truly shine is server workloads and heavy duty scientific number crunching. Its really meant for that market, it just happens to perform well on desktop apps/games too, much like K8 was in its prime several years ago.

[Ufon]

I have just managed 3,9 GHz with a Core i7 920 ES (3,8 GHz without Turbo, both settings prime95 stable, screenshots below) and Asus P6T Deluxe. 1,35 V Vcore was enough for 3,8 GHz, about 1,41 V for 3,9 GHz. Not bad for basic Bloomfield :-). Other settings:

QPI: 1,4 V
IOH: 1,35 V
ICH: 1,4 V
speedstep, turbo: on (for 3,9 GHz), off (for 3,8 Ghz)
virtualization, C1E: off
spread spectrum: off
skew: auto

memory (qimonda ddr3-1066, cl7, 1,5 V): trichannel, about 1200 MHz, 9-9-9 (8-8-8 was stable tool), 1,64 V, 3N for sure

Cpu-Z:
http://valid.x86-secret.com/show_oc.php?id=439417

Ripping:
http://en.ripping.org/database.php?cpuid=873

Screenshots (Cinebench R10 = 22.200 points) :
http://www.extrahardware.cz/forum/vi...art=175#p40481

Core i7 965 XE only 3886 via multiplier :-(

[freshy]

I have just managed 3,9 GHz with a Core i7 920 ES (3,8 GHz without Turbo, both settings prime95 stable, screenshots below) and Asus P6T Deluxe. 1,35 V Vcore was enough for 3,8 GHz, about 1,41 V for 3,9 GHz. Not bad for basic Bloomfield :-). Other settings:

QPI: 1,4 V
IOH: 1,35 V
ICH: 1,4 V
speedstep, turbo: on (for 3,9 GHz), off (for 3,8 Ghz)
virtualization, C1E: off
spread spectrum: off
skew: auto

memory (qimonda ddr3-1066, cl7, 1,5 V): trichannel, about 1200 MHz, 9-9-9 (8-8-8 was stable tool), 1,64 V, 3N for sure

Cpu-Z:
http://valid.x86-secret.com/show_oc.php?id=439417

Ripping:
http://en.ripping.org/database.php?cpuid=873

Screenshots (Cinebench R10 = 22.200 points) :
http://www.extrahardware.cz/forum/vi...art=175#p40481

Core i7 965 XE only 3886 via multiplier :-(

and what were your max temps on air ? what are the max temps for the i7 920 ?

[Ufon]

freshy: Temperatures on this screenshot are with Thermalright Ultra-120 eXtreme.

Chri$ch: Maybe if I find some time. Creating review of all three Bloomfields is my primary task, overclocking is only fun and additional info for our readers.

[Movieman]

I have just managed 3,9 GHz with a Core i7 920 ES (3,8 GHz without Turbo, both settings prime95 stable, screenshots below) and Asus P6T Deluxe. 1,35 V Vcore was enough for 3,8 GHz, about 1,41 V for 3,9 GHz. Not bad for basic Bloomfield :-). Other settings:

QPI: 1,4 V
IOH: 1,35 V
ICH: 1,4 V
speedstep, turbo: on (for 3,9 GHz), off (for 3,8 Ghz)
virtualization, C1E: off
spread spectrum: off
skew: auto

memory (qimonda ddr3-1066, cl7, 1,5 V): trichannel, about 1200 MHz, 9-9-9 (8-8-8 was stable tool), 1,64 V, 3N for sure

Cpu-Z:
http://valid.x86-secret.com/show_oc.php?id=439417

Ripping:
http://en.ripping.org/database.php?cpuid=873

Screenshots (Cinebench R10 = 22.200 points) :
http://www.extrahardware.cz/forum/vi...art=175#p40481

Core i7 965 XE only 3886 via multiplier :-(

That's all? ... OOPS!