Core i7/X58 Overclocking Thread

[rge]

That's a sweet OC but not a 920 that being the main difference although you make me think I should get the 940...

Also I wonder if the amount of memory which for you is 3gb has anything to do with the ability to OC the processor??

The memory part I wont know til 6 months when I update to 3x2gb and windows 7 64 bit, (and probably 1800 speed to run 10 multi), as my xpsp3 32 bit wont use more than ~3.5.

maybe i940 is binned, and maybe better chance of getting 4 for that reason and can use less bclk to get there which gives you better chance for those chips that cant use high bclk, though my chip will do 20x200, max bootable bclk is 215. Or maybe I just got lucky in the chip lottery.

[Hot'n'Chilly]

Just for the record... nobody has yet been able to achieve 4ghz stable, right? So whats the highest any person has been able to get 24/7 stable? 3.8ghz? 3.9 maybe?

What are saying? Look two posts above.

core I7 920es@ 4Ghz/1.30v :ouch:
watter X58-extreme

But he never said anything about being 24/7 stable. Did he run Prime95 yet? If thats a stable OC I am seriously impressed!

[pinto]

Nothing prsonal but I wouldn't call this Prime stable in my book OCCT is not prime95...



Again hard to call that stable without more info.. That's a really limited post Prime95 for 12hours maybe... pinto I see in your sig 4.65 is that prime stable? pics or I call shenanigans...



That's a sweet OC but not a 920 that being the main difference although you make me think I should get the 940...

Also I wonder if the amount of memory which for you is 3gb has anything to do with the ability to OC the processor??

I didn't say my 965 is 4.65ghz stable M8. I can bench up to 4.65ghz on watercooling In france we use to test our cpus with occt more than with prime. For me i can daily use my cpu at 4.2ghz with 1.34v, it never crash all day playing games or benching but to be "stable" the vcore has to be increase to 1.37v

[btdvox]

^^ Nice thats what im looking to hear, 4.2 with 1.34 on water is what I want for my CPU!

Can you give some bios entries on how you set that up? It seems no one is putting bios entries.... Nor is there a template.

[pinto]

^^ Nice thats what im looking to hear, 4.2 with 1.34 on water is what I want for my CPU!

Can you give some bios entries on how you set that up? It seems no one is putting bios entries.... Nor is there a template.

Certainly because only few settings had to be tune
For me only:
-vcore 1.34v
-qpi/dram 1.35v
-vpll 1.8v
-vddr 1.66v

Loadlline calibration enabled and timings for 870mhz 88820 1T
Don't forget to disabled every useless cpu fonctions

[Metroid]

Well regards to air cooling solutions, is much more difficult to get the system stable than with water cooling solutions. If I had a water setup then I would probably end up with 1.30 V for 4.2Ghz, no news about this. The maximum decibels that my system outputs is around 23 which beats most watercooling solutions concerning decibels. Cheaper, no need to manage and quiet.

[roller11]

Metroid..

Glad to hear someone besides myself bring up the issue of noise, this is my #1 hot button. You imply that your computer is quiet, could you elaborate as to type of cooling you have? My computer, a C2D with Tuniq 120, is very quiet, but my concern is that when I go i7 920 I'll have to crank up the fan noise. Suggestions?

[Metroid]

Metroid..

Glad to hear someone besides myself bring up the issue of noise, this is my #1 hot button. You imply that your computer is quiet, could you elaborate as to type of cooling you have? My computer, a C2D with Tuniq 120, is very quiet, but my concern is that when I go i7 920 I'll have to crank up the fan noise. Suggestions?

The image below is my primary system specifications.

My first priority was and is to keep the system below 23 DB:

But How?

First: A case which will contain the output noise like Cosmos RC-1000

Second: The best air cooling solution to date [True Copper 2.0kg]

Third: 2 fans which will help to cool down the heatsink Noctua NF-P12 with a maximum output noise of 20DB. I have the case + CPU fans = 6 total and I plan to add 1 for the HD cooling all good quiet fans.

Fourth: My system will be 7 fans at maximum of 20 Decibels which at the end will not trespass 23DB.

Fifth: some people tell that I7 runs hotter than Penryn which I confirm it does, however much smarter than Penryn. The thermal work load is quite well balanced by the fact when 1 core gets hot then they switch to another core or make tasks using various cores which the temperature will never go beyond 90c at best. there are applications which use 8 cores however not fully by many tests made by me. So the point is by the time they make an program which utilizes 8 cores fully then will have good air cooling solutions around to cool down it or just buy the tick core codenamed westmere 32nm.

So no need to be aware about the temperature levels by any means, my focus is the sound that the system produces.

Right now:

Sound: less than 23DB
Temperature:
Idle: 56c
Load: +100c 8 logical cores 100%

I hope this helps,

[sonofander]

You let your chip run at 100c?????????

[Metroid]

You let your chip run at 100c?????????

It will not run over 100c by the fact it will drop the processor multiplier when it reaches 98c in order to reach reasonable temperatures.

What I'm saying is if we had not this feature then this processor would burn very fast. So as long as any of the cores of this processor does not reach 99c then is fine.

[Guacamole]

I didn't say my 965 is 4.65ghz stable M8. I can bench up to 4.65ghz on watercooling In france we use to test our cpus with occt more than with prime. For me i can daily use my cpu at 4.2ghz with 1.34v, it never crash all day playing games or benching but to be "stable" the vcore has to be increase to 1.37v

Yeah man I was just having a little fun I really didn't figure it for 24/7 but it still looks like you have a great CPU...

[X2beach]

I am running a RE2 with a 920 O/C to 3.8 with 1.3 Vcore I cant seem to get 4ghz to run, I am watercooled also running prime95 with HT disable I gte 60-61-62-60 if I turn HT back on add +10C

[Splave]

I fail prime at 1.38125vcore at 3.9ghz with ht enabled after 10 minutes or so temps hitting 77c hottest core wc but 3.8ghz stable HT disabled 1.3v same as you x2beach

[X2beach]

I am thinking about upgrading my WC setup.. I think TEMPs are to high

[Splave]

what is the purpose of the uncore frequency?@ 195x20 (3.9ghz) I have it at x17 (3230mhz) I know it has to be atleast 2x higher than dram multi but what effect does this have on OCing, doesnt seem to change anything stability wise from x17 to x20

[flopper]

7 hour p95 4 cores.
stopped it due to gaming.
20x200 4ghz, 1.344 load.1.360 idle cpu-z
Turbo on.
Not sure why cpu-z says 4200mhz and 21multipel.

[Splave]

what voltage does it take with HT on?

[X2beach]

Ive have found HT requires alot more juice for me.. and +10C on load temps

[Guacamole]

what is the purpose of the uncore frequency?@ 195x20 (3.9ghz) I have it at x17 (3230mhz) I know it has to be atleast 2x higher than dram multi but what effect does this have on OCing, doesnt seem to change anything stability wise from x17 to x20

Here is a really cool thread that will help with that question:

http://www.xtremesystems.org/forums/...d.php?t=205688

7 hour p95 4 cores.
stopped it due to gaming.
20x200 4ghz, 1.344 load.1.360 idle cpu-z
Turbo on.
Not sure why cpu-z says 4200mhz and 21multipel.

You have turbo on so when you have single threaded apps it shows +1 multiplier..

[chuckbam]

With a Max TDP of 130w set it doesnt take much calculation to decide where the limit is. If your using 1.3v then it will limit at a maximum current of 100A

It is .80V - 1.375V on the spec sheet.

[Splave]

You have turbo on so when you have single threaded apps it shows +1 multiplier..

But he is priming in the background which atleast for me drops the multi

[Guacamole]

But he is priming in the background which atleast for me drops the multi

Yep you're right I missed that, that must be what he is talking about.. Probably a bug in the bios..

[Ghigo]

Gigabyte x58 boards latest bioses lock the multi on turbo mode even on 8 threads loaded 100%.

Well if is a bug and not a feature is a nice bug , 200 extra mhz always welcome

But this reason most people got problems run 200x20 stable cos they prime95 at 4.2 ghz real

[SAE]

Wow^^ So it's possible to lock in turbo?!
Wanting Foxconn to implement that in their BIOS as well. Would be sweet, since 920 can really make use of that when cooled decently.

[rge]

Bios F3, turbo works as intel intended. When TDP reaches a certain level, extra +1 multi is dropped. Bios F3, loading 1 or 2 cores with blend, and turbo still on, load 3 or 4 and turbo is off. This setting is useful for allowing turbo at same vcore as when turbo is turned off.

Bios F4's, this "TDP limit" is apparently turned off, just like you can disable speedstep, so that turbo enabled is practically giving you +1 multi, so you will need more vcore to be stable. If this is a hidden setting in bios, (at this point I would think it has to be), I wish GB would let us turn it on or off, ie make the setting visible....though I guess we can by changing bioses...There are pluses and minuses to both ways.