i 920 Over Clock @ 3.36 ghz.memory timing OK?

[toohot]

ok I bit the bullet and oc to 4ghz but it willnot stay @191x21 why>it will not stick at that in the bios I tried three the same thing.as for temps outside its now 12c and inside study its 24c.I think pc is acting like a heater warming the room.

 

[toohot]

cannot get x21 to stick,every time I reboot it goes back to x20.I tried to oc to 4ghz 191x21 and also 181x21 with no luck.tried it three times.

 

[n-ster]

Don't check in BIOS. to see if x21 is sticking, check in CPU-Z while CPU is at load, if it is not, try enabling the "Turbo" feature, as mine is enabled

mine shows 3.8 in BIOS, but its 4Ghz in CPU-z, to give you a reference

 

[toohot]

earlier on you told me to disable turbo is that correct.Cpuz statea 3.8ghz 191x20

 

[n-ster]

I told you to disable Power saving features, Turbo is not one of them Fatal was the one that told you to do that

http://www.techpowerup.com/forums/showpost.php?p=2246011&postcount=13

 

[toohot]

OK
I set it @191x21
advanced cpu core feature -advanced turbo boost tech -enabled
advanced memory sttings-performance enhance-standard to turbo
bsod vcore @1.12 at bootup
set vcore @1.225 boots up ok but abit slow,will prime test soon.and let you know.
The thing is why do you have to have turbo on to get x21?
I soon will be in the 4ghz club tepending on temps
current idle temps are 45-44-44-43 room temp 23c outside 12c
This thing can heat the house.Well it's been ruuning all day!

 

[brandonwh64]

OK
I set it @191x21
advanced cpu core feature -advanced turbo boost tech -enabled
advanced memory settings-performance enhance-standard to turbo
bsod vcore @1.12 at bootup
set vcore @1.225 boots up ok but abit slow,will prime test soon.and let you know.
The thing is why do you have to have turbo on to get x21?
I soon will be in the 4ghz club depending on temps
current idle temps are 45-44-44-43 room temp 23c outside 12c
This thing can heat the house.Well it's been running all day!

For some reason 920's loved the 21x multi over its standard 20. Mines is sitting 21x191 1.27V fully stable and idles 39c and loads 70c

My cruncher on the other hand requires 1.35V for 21x191 stable. It will BSOD tho if the temps get close to 90

 

[n-ster]

OK
I set it @191x21
advanced cpu core feature -advanced turbo boost tech -enabled
advanced memory sttings-performance enhance-standard to turbo
bsod vcore @1.12 at bootup
set vcore @1.225 boots up ok but abit slow,will prime test soon.and let you know.
The thing is why do you have to have turbo on to get x21?
I soon will be in the 4ghz club tepending on temps
current idle temps are 45-44-44-43 room temp 23c outside 12c
This thing can heat the house.Well it's been ruuning all day!

21X IS a turbo freq. so it makes sense. Were you not at 1.1275V before? try that voltage again, but for now leave the other things to auto. If that works, than keeping the other thing in Auto is fine, as finding which voltage needs a bump is a tedious process.

Use Intel Burn Test, Prime95 is not very effective at this point for us. If you want to do Prime95, you do it when you think you are at your final OC, and you leave it overnight

For some reason 920's loved the 21x multi over its standard 20. Mines is sitting 21x191 1.27V fully stable and idles 39c and loads 70c

My cruncher on the other hand requires 1.35V for 21x191 stable. It will BSOD tho if the temps get close to 90

1st Voltage is normal but 2nd is crazy bad lol. my i7 920 took 1 min to put to 4Ghz lol. I guessed 1.2675V, and that is the stablest voltage I can get for 191x21

 

[toohot]

Do I leave llc @level 2
and memory voltage to I leave that @1.64v or auto
as for IBT 2.5 is that for core 2 systems?

 

[brandonwh64]

1st Voltage is normal but 2nd is crazy bad lol. my i7 920 took 1 min to put to 4Ghz lol. I guessed 1.2675V, and that is the stablest voltage I can get for 191x21

Oh yea, Ive tried two motherboards and both have same result with this chip I dont know what it is. hell it wont even make it into windows at 1.3V

 

[n-ster]

Do I leave llc @level 2
and memory voltage to I leave that @1.64v or auto
as for IBT 2.5 is that for core 2 systems?

it's for any processor... It does best on intel processors though, it does a great job on i7 920s

Yes leave llc @ lvl 2 and as I said before, try to put your mem back to 1.5V and VTT back to stock (1.2V?)

 

[toohot]

Ok ihad alot of drama today.I was all over the place .so i set vcore to 1.268v.cpu pll @1.8v.qpi/vtt @1.2v .Stress tested using IBT. normal test pass.high test pass.Load @ 100% are very high 83c85c 79c 80c .idle temps are high 43 44 45 45c room temp 24c.too high for my liking.
I think i will go back to 3.6ghz.I am enjoying th 4ghz speed.Sad! 190x21.I tried memory voltage @ 1.5v system it did not bvsod bet prime gave me error and system gave me h/w warning.

Also I read up on OCZ Freeze no cure time.good stuff.Artic Silver has 200hr curing time to run @ max efficiency.my system does not like 4ghz for some reason when using prime95

 

[n-ster]

Why did you put Vcore so high when you system can do 3.8Ghz at 1.2175V?

Try 1.6V mem and 1.24V VTT then, that should definitively work.

I'd like to point out that IBT works your CPU to the MAX, so you will NEVER EVER get to those temps unless you use IBT. In your MAX usage, you will be in the mid/low 70s. Still, try Vcore something between 1.22V and 1.23V.

 

[Fatal]

I think he tried lower vcore and it kept failing prime95 plus all chips wont do the same voltages my chip is a prime example of that lol. Also was messing with the memory timings at the same time and we know that will screw stuff up fast.

 

[n-ster]

He said at 1.225V it boots up fine, so why the jump to 1.2675V? perhaps to 1.23Vish

 

[Fatal]

Yeah true he could try lower voltage I am kind of shocked 4.0 is a no go.

 

[n-ster]

I'm sure he'll be part of the 4GHz club once we tuned the voltage down a little...

Thing is that most inexperienced users just don't like high temps, as the i7 9XX quads are probably the CPUs that can take the most heat safely. They are MADE for overclocking lol. STOCK i7 920s RUN AT OVER 90C though, not only does that no pose a problem, but those CPUs still outlive the cases they are on

 

[Fatal]

True once I started overclocking my chip coming from an Phenom 940 temps did freak me out lol.

 

[toohot]

Latest update.I decided to go for 3.8gh for now until I try tighten up the 2 screw on the mount,if that does not work I will try OCZ Freeze if available,if not I will try artic silver 5 avilable at most stores.I will also try in order as n-ster stated. I have the 4ghz bug and would like to join the 4ghz club.

I came across the bsod/prime95 error codes for overclocking ,and downloaded bluesreenview software and that has helped.I am getting error 0x124. wich means increase/decrease vcore or qpi/vtt... have to test see wich one it is.

1.vcore @1.2175v. qpi/vtt @ 1.24v. mem @1.6v- bsod error code 0x124. on boot up

2.vcore @1.2375v. qpi/vtt @ 1.28v. mem @1.5v IBT test high= pass.Very high= failed @ 10 min in-error 0x124 bsod. Temps are as follows 67 67 68 65. room temp 20c.case temp 18.5c

It is not easy,so many combinations to get it stable.but not giving up full stop!I am a winner not a loooser.As they say not all i7 920 are the same x58 D0's & C0's.My x58 is D0 stepping. better in warmer climates less voltages needed @ higher OC. I can not thank you all enough for sticking it out with me.Toohot

Also when applying thermal paste is the 5mm pea size without spreading or the horizintal line or x spread without spreading ,wich is the best way.I use the pea thin credit card method?

 

[n-ster]

Just keep the mem at 1.6 or 1.64V in that case, and VTT at 1.24~1.28V. While this may not be needed necessarily, it will just make sure your mem is ROCK solid, no, DIAMOND solid

Try with that again at 1.2375V with IBT. let us know btw, BIG props on keeping at it, very dedicated, and does his research, you can't have a better, ummm, student? customer? wtv you wanna call yourself lol

EDIT: regarding your TIM. DON'T spread it, it gives air bubbles. while it is not a big problem, it should help by maybe 1C or 2. I use half pea center, press hard on your heatsink and give a little twist to get rid of air bubbles. The size of an actual pea is too much.

BTW, I personally do not like AS5 AT ALL. I'd keep whatever you have over AS5. I would prefer to buy online somewhere to get some MX-2 or something

 

[toohot]

Also when applying thermal paste is the 5mm pea size without spreading or the horizintal line or x spread without spreading ,wich is the best way.I use the pea thin credit card method?

wtv you wanna call yourself lol ?
customer... your not getting paid but I think you should.

Did you mean IC diamond 7 thermal paste

 

[n-ster]

Also when applying thermal paste is the 5mm pea size without spreading or the horizintal line or x spread without spreading ,wich is the best way.I use the pea thin credit card method?

wtv you wanna call yourself lol ?
customer... your not getting paid but I think you should.

Did you mean IC diamond 7 thermal paste

no, I just don't like Actic Silver 5 because of the cure time and spreadibility.

5mm pea is too big IMO, try a bit less, but then again, it depends how well your TIM spreads... DO NOT use the credit card method. No spreading, so drop in the middle and then press very hard on your heatsink (without breaking your mobo obviuosly lol), then give a few twists to get rid of air bubbles

You could also do a 4 point close to the center, but it would involve knowing how much TIM is suppose to be on your CPU

 

[toohot]

Looking on you tube I have seen some one recommending 4 core system the horizontal line across the chip but I fully trust your opinion

 

[n-ster]

http://www.youtube.com/watch?v=ffK7L0Qj13Q

notice that the TIM doesn't have to be spread to the edges. The amount he put is perfect, though you can putt a little bit more if you want to be more in your comfort zone

 

[toohot]

I will go with the pea 5mm method. great youtube video.Well done!