intel i7-720qm overclocking??

how can i overclock intel i7-720qm??is it possible?with turbo boost function it goes up to 2.8ghz...

 

Bump, I would like to know too

 

At this point I don't think there is a an overclocking utility that has support for the i7, not to mention that it can be fairly difficult anyway, even with a Core 2 processor.

 

It should be possible, thanks to the moo we know for a fact that the new i7,i5,i3 cpus still need a clock generator (PLL) to generate the reference clock.

You need to find the PLL on the motherboard, then find the datasheet for it on the internet and then pin mod the PLL.

I can help you, but it's likely that your PLL is soo new (like what moo had) that you wont find the datasheet anywhere online.

So it's not easy, but it should be possible.

 

In that case OP can be a pioneer...

 

Half a month later...any leads?

 

Just like overclocking any cpu its probably going to be a lot more system specific rather than cpu specific.

With luck there will be a program that can increase the blk on the fly like setfsb did for the fsb, but I feel that the limitations of this approach will be far greater than the core series due to that turbo boost, if you increase the blk just a bit when the turbo boost kicks in the cpu will go to really high mhz and possibly crash.

 

Ah, thank you for the info!

 

After I have read your thread Vicious, I now know that it is not a good idea to overclock it...

 

so there is still no way to overclock an i7 mobile chip? even the 920xm?

 

Im pretty sure the day a prog like SetBLK appears you will also have a prog to turn off turbo boost like anyone who overclocks his Desktop i7 does.

 

From what i know , u can overclock the 920xm... but the overclock is only stable if turbo boost is turned off...

 

so you can turn off the turbo and overclock a 920xm? bios?

 

Some things can only be done in the bios, there is not just a matter of time involved. Not saying it cant be done but dont get your hopes up.

Well not sure for all systems just the Asus G73 I know with a 920XM installed you can overclock it in the bios and you overclock it by actually changing cpu multipliers and then forcing them on. I think its the turbo boost multipliers that are changed. If anybody coughs up a 920XM for me somehow I'll be happy to test

 

The initial Clevo W870CU release also allowed for BIOS overclocking of the 920XM by up to, IIRC, 4 multipliers, but that feature was removed in later BIOS releases.

 

can't u also use the intel extreme tunning utility to overclock the 920xm?

 

I think the answer to that is no, it has to be supported by the motherboard/bios also isnt that only for the core series or do they have it for the i7 now too?

 

i don't know.. i did know u could overclock QX9300 with this utility... might be the same for 920XM...

 

I think there was an E-LEET EVGA utility that worked, but only for X58 boards. Gophn had a friend modify one so that it worked on the D900F, but he never released the modified version. That is, also, admittedly a desktop i7-975, and not a mobile.

 

Wont overclocking this CPU decrease its lifespan exponentially?.. its a mobile thingy, ive read about heating issues in both the HP i7 notebooks and the Dell XPS series.

 

If it's overheating, yes. If, however, you stay within heat constraints, you'll probably never notice. Sure, you may be reducing the overall lifetime of the CPU, but since CPU lifetimes can usually be measured in decades if not abused or overheated, chances are good you'll replace the CPU long before you burn it out.

 

If you're generating a significant amount of extra heat, while it wouldn't hurt the CPU too much, you might find that the extra heat harms other components in the laptop.

The other big disadvantage of overclocking in a laptop is that it harms the battery life. Ideally, you would have it overclock only when connected to external power.

 

Oh trust me... the hp's and dell's might run hot but in the Sager , the CPU won't overheat... those laptops have some of the best cooling systems in any laptops...

 

Sorry to revive this old thread But I used setFSB to OC my 720 in my Alienware m17x R2

 

Yes ?
Can you give us some details ?
max fsb with nb core ?

Thks a lot.

Fred

 

I raised my VCORE up 150mv and raised my Memory voltage to 1.6V max FSB was 153 Base clock is 1.84 GHZ and max Turbo was 3.12 GHZ

here is a screenie


and finally thread that delves into it more

http://forum.notebookreview.com/alienware-m17x/495203-how-oc-m17x-r2s-920xm-940xm-using-setfsb.html

Uploaded with ImageShack.us

The highest I got without voltage changes was 38/98 for a bus of 151-152 clock speed base was 1.81 GHZ and max turbo was 3.09 ghz
EDIT:This was a little misleading so I re wrote it
this works on the PM55 Chipset and HM55 chipset and works for all i7 mobile CPUS and i5's (If your PLL is compatible with SetFSB) but if your not sure all you have to do is hit Get FSB if the values do not appear do not proceed.

 

Thks.

Have you some details by nb of core ? 3.12 Ghz with only one core i suppose ?
1 Core -> 3.12 Ghz
2 Core -> ?
3 Core -> ?
4 Core -> 1.84 Ghz

Thks again !

Fred

 

1 core 3.12 gHZ
2 core 2.69 GHZ
3 core 1.97 GHZ
4 core 1.84/1.97 GHZ

I dono about the NB core whats a program to find it? my QPI is runnig at 2500-2650 MHZ at 16x

BCLK is running at 159-165 at the moment

 

Also do not hit Set FSB or use the sliders as it will cause your system to lock up so just use the diagnosis section and alter the parameters for a stable clock just update all your HEX Values then hit apply when done changing

 

afaik setfsb has to be compatible with your pll chip for it to work. fortunately for AW and most asus users, the pll chip on their i7 motherboards are indeed supported by setfsb and will allow you to o/c the qm i7's.
however other laptops like my sager 8690 do not have a supported pll chip. so best you check with the setfsb website or your respective notebook subforums before attempting a setfsb o/c or you may risk bricking your laptop.

 

Thks

Somebody test O/C with a Toshiba Satellite A660 ?

Fred

 

how do u do this? I'm a complete newbie.. i thought u have to use the sliders.

 

Go into the Diagnosis tab and once you find the CG which should be the same as mine clock generator ICS9LPRS365BGLF, click GET FSB and let it populate the addresses. (if the values do not Appear do not proceed). Just click on the HEX values you want to enter which shoule be these values YOU MUST HIT UPDATE AFTER CHANGING THE HEX VALUE AND THEN HIT APPLY WHEN ALL VALUES HAVE BEEN CHANGED TO SET THE SPEED(DO NOT CLICK SETFSB)

Location HEX(to change just click on the number you would like to change)
00/00 21 change to29
00/10 31(this one can be changed from 32-39)*crashed at 40 for me and 39 wont work unless you can up your voltages
00/0C 0D change to 20
00/0F Change this value to 18 or 98

SO once you get the 00/00 and 00/0C changed to the appropriate values (29 and 20)

then its a matter of

altering 00/10 and 00/0f to get the speed you want.

00/10 00/0F
32 18
32 98
33 18
33 98
34 18
34 98
35 18
35 98
36 18
36 98

start at 32/18 and raise in increments So forth and so on My max was 39/98 which gave me a BCLK of 1.84GHZ and a max turbo of 3.12GHz


here is what i have it running at right now
your screen should loook something similar to this when changed


Uploaded with ImageShack.us


and this is stock


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and here is the thread on the alienware forum just so you can verify
http://forum.notebookreview.com/alienware-m17x/495203-how-oc-m17x-r2s-920xm-940xm-using-setfsb.html

 

Did you run some stress tests w/ vs. w/o overclocking to check the effects on temperatures/stability and fan speed/noise?

 

Yup I sure did Prime 95 Stress test temps never exceeded 80'C OC'd and stock never exceeded 70'C totally stable at that OC and of course the fan speed/noise was louder as the temps were higher.

 

mate, from what i'm reading on G73 forum , u can use slider as long as u move slowly..

 

Hi, Would be very interesting to know if the processor is downthrottling while overclocked. What times do you get in wPrime 2.03 running 1024M and pulling all 8 threads? OC'd and stock please.

 

hi mik,

i have a dell studio 1558. how do i know which CG i need ?

i have something with intel lynnfield imc
intel ibex peak-m hm55

thank you very much

 

Wonder if there is a PLL for Acer Aspire 7745G yet...