Core i7/X58 Overclocking Thread

[roller11]

i got mine from mwave

Your sig is Australia. Did you get it from mwave in the U.S.A.?

[Aberration]

Heres my settings
i920/ex58-Extreme/g.skill 1600 9-9-9-25/fuzion v2/mcr-320


Voltage:
1.375 vcore set in bios LLC enabled
1.41 QPI/VTT
1.86 PLL
1.66 Vdimm (probably could be lowered)
All other voltages Auto

21x200
Turbo enabled even under load (thanks f4j )
HT disabled
x36/x18/x8
PCI-E 101
CPU clock drive -800mV
PCI-E clock drive -900mV

Hope it helps

Those are great temps. I am getting 72C @ 1.300 in BIOS on the GTZ.

[Aberration]

Well, I am really thinking to sell my Core i7 940 and get a 920 instead...but I guess I ought to set up a water loop first to see what I can get out of it then...



Same conflict on R2E as well...I wonder if it is the two types of advanced power management features that are present in the BIOS.

Strange...anyway here is a screenshot...

I am on R2E and do not have this conflict.

[dejanh]

I am on R2E and do not have this conflict.

Windows XP maybe? We have all been on Vista so far...

Edit: Well, I have what looks to be an answer and here it is... http://support.microsoft.com/kb/930062/en-us

[Thasp]

a 360 extreme radiator for just the CPU?????

Is there any other possibility? Would too much thermal paste cause it? Air pockets in the loop? There has too be some other explanation!

Do what I did.

Put your radiator in the window with six fans on it.

1.7v on a q6600 g0, 3.95 GHz, and it doesn't step over 55c.

Gotta love wintertime.

[freshy]

When I've raised BCLK and it wasn't stable, raising QPI/vtt helped.

Try traising it a couple of notches.

My CPU/PLL is 1.88 atm.

yes ,
my 13 hour prime @4ghz is
19 x 191 HT on, turbo on
vcore 1.375v
qpi/vtt 1.315v
vdimm 1.64v
mem 1528mhz 9,9,9,24
qpi link speed x36
uncore frequency x18
pcie frequency 100

ive tried to drop vcore a bit but it crashed, im just priming now with vcore back at 1.375v but trying to see if i can drop qpi/vtt from 1.315v to 1.295v
but yea ya must lift qpi/vtt voltage or its just not stable

il try get 4.2ghz stable after i know what settings im staying with for 4ghz

edit.... nup she needs 1.315v for qpi/vtt

Your sig is Australia. Did you get it from mwave in the U.S.A.?

yep mwave in the USA,i got good friends over there , they sent it over for me

[freshy]

over 2 hours of prime and still going @ 4116mhz
19 x 196 HT on , turbo on
1.45v vcore
1.435v qpi/ptt

max temps 80c, are these volages and temps ok for 24/7 ?

[bmilos]

Well, I striked my watercooling loop last night (what a PAIN!) and re applied the thermal paste, changed the fans to pushing, refilled the coolant (no more air pockets) and it seems to have done the trick. I have a 18 hour prime stable 4.1 mhz @ 153 x 27 w/ 1.39375 and a qpi @ 1.40000 , HT on. Temps were in the 80c range at load.

[Splave]

that sounds more like it

[freshy]

nice to know 920 is kinda keeping up with 965

[bmilos]

depends on what you own...

[freshy]

thats true, personally i expected more from the 965, they were $2k here in australia

[jaredpace]

freshy has one of the nicest i7 stable overclocks. sad - this new arch isn't all that interesting to me.

[dejanh]

thats true, personally i expected more from the 965, they were $2k here in australia

Yeah, I am not going to lie but I am pretty pissed at the moment. I purposely bought a Core i7 940 because I figured they would be higher binned chips than the Core i7 920 and hence get better overclocks. I know this is not guaranteed, but at least in AMD world it held pretty true. However, not only can I not get better overclocks (tried 2 CPUs so far), but the i7 920 actually often beats my highest stable overclocks on air.

A couple of points I noticed...

(1) Lots of chips out there will not run 20x multiplier. Both of my Core i7 940 chips won't. Above or below that is fine.
(2) Voltage requirements and temps for same clocks are a complete crapshoot. My first i7 940 would heat up ~15C more than the one I use now for the same volts and clocks.
(3) Jumps in volts for additional few MHz are stupendously large (e.g., going from 200x19 to 200x20).
(4) Having 22x multiplier (23x turbo) on the i7 940 is actually a major hinderance in comparison to the i7 920 as running this chip with 4-cores/8-threads at 22x200 is basically not possible thereby making 23x200 practically impossible. Turbo sort of gives a multiplier for free, except that means nothing when you cannot run your chip at its default multiplier to allow for turbo in the first place.
(5) At theoretical top clocks assuming 200MHz BCLK (even) there is a 400MHz difference between top clock on i7 920 vs i7 940 which likely translates to at least 0.3-0.5V (likely more) difference in extra voltage needed to achieve stability which is again practically impossible as most regular i7 920 will already require too much voltage to run at their theoretical maximum of 200x21.

Overall, pretty pathetic. With the current state of affairs and unless you are a top-notch enthusiast going for the higher possible bench score with some amazing cooling there is no point in buying either the i7 940 or the i7 965 EE. Simply put, they are a waste of money.

[bmilos]

I am going to have to agree with you, on all fronts. One would think $700USD would get you a bit further than the 920. Ive seen consistent 1.3 - 1.5 overclocks from the 920 and I am having trouble reaching a 1.0 mhz overclock. What sense does that make?

Given, this chip seems to thrive on SS and ln2, that would be an extra $800 for a phase changer... Not worth it.

I am still keeping the faith, though. Maybe through some miracle bios or untapped voltage, the 940 and 065 will prevail. I've reached an unstable 4.4mzh boot, but prime95 has been beating me up from 4.2 on...

[JPQY]

dejanh..yes you are right..therefore i want the people see what real performance they get for the money with my chess test!
If you look to my list then you see clearly how good the core i7 920 is compared with the 940 & 965.

JP.

[Lukee]

The one thing that the 965 allows is more control over what you want to OC your memory to. Given that, that's a hell of a lot of money to OC your memory a couple hundred MHz.

My i920 HATES 20 X CPU multiplier.

I've managed to run 211 BCLK, but at obscene Qpi/vtt voltages.

I'm hoping that as time goes on, Gigabyte will put out a bios that will allow me to use that x20 multiplier.

Right now I can run 211 x 19 pretty stable at pretty low voltages. It's just not worth running higher for me. The increase in heat and voltages just aren't worth the possible gains.

That being said, if I saw a 965 for $500 I'd jump on it in a heartbeat!!

[Splave]

Lukee, why not try 20x200 with turbo (running a bios that leaves turbo always on)
have you tryed settings in my sig?

[Lukee]

Lukee, why not try 20x200 with turbo (running a bios that leaves turbo always on)
have you tryed settings in my sig?

I've tried for like 5 days and nothing. lol.

I've tried 21x200 , 20x200

My bios setting are smiliar to yours :

Voltage:
1.375 vcore set in bios LLC enabled
1.41 QPI/VTT - I think I was a bit lower on this.. like 1.31
1.86 PLL
1.66 Vdimm (probably could be lowered)
All other voltages Auto

21x200
Turbo enabled even under load (thanks f4j )
HT disabled
x36/x18/x8
PCI-E 101 - I have PCI-E 100
CPU clock drive -800mV
PCI-E clock drive -900mV - I have 700mV


I'll give it a shot while changing those 3 settings.

The funny thing is with the 211 x 20, I run it at 1.3V in bios. I turn turbo on and it still gives me problems even at 1.45V in bios That's a lot of juice.

[mascaras]

My i7 is watercooled. Still 90c load.

Hi


thats strange , im using 3.8Ghz @ 1.20v with watercooling (and BAD Thermal Compound)

playing GTA IV for 1 Hour max temp = 46º







and prime95 = 55º/60º

[bmilos]

Hi


thats strange , im using 3.8Ghz @ 1.20v with watercooling

playing GTA IV for 1 Hour max temp = 46º

and prime95 , max temp ~ 59º

Not, strange. You are using 1.20 vcc. I'm using 1.4v vcc

[mascaras]

Not, strange. You are using 1.20 vcc. I'm using 1.4v vcc

haaaaaaaaaaaaa , 1.40v (didnt saw that)


Edit: with 1.35v i get ~70º

[derektm]

In between Super PIs, has anyone with a P6T Deluxe notice this? This is not only my board.

I emailed Asus about this issue. Their support team is a JOKE!

Hello,

The tech support team, unfortunately, is not 'in the loop' regarding what, if any, changes are planned for any BIOS, for any board, so we can't say what, if anything may be done, or when it's released, nor does our engineering department have a point of contact for this type of query. All we can suggest if you own the board is to check the download page periodically to see what is available.


Regards,

Asus Support Team

How the hell can bugs get fixed then? What the hell is their support good for if it can't be in the loop? Thats the most BS I've ever heard!

[bmilos]

Anyone using a Peltier? I'm thinking it would be a good investment that would yield some results...

[Splave]

haaaaaaaaaaaaa , 1.40v (didnt saw that)


Edit: with 1.35v i get ~70º

no need to laugh at the guy