G73 i7-720 OC

Not seen very much info about it, last i was able to find is it cant be done any way other than the twin turbo mode. Anyone know of a thread that says how to OC the 720?

 

You can use a program called setFSB to change the bus speeds. It is not free, however. Requires a $5 donation.

 

I got the 820QM processor instead of 720 and have tried to acheive some results using SetFsb. In a way the application did what its supposed to, it raised the fsb/processor speed. However the performance in benchmarks and fps dropped just like it does when you enable twin turbo mode (twin turbo mode does the same as Setfsb if i understand it correctly). It pussels me and i havent yet found an answear to why you loose performance when it should be increasing. Perhaps its a cpu design thing, i dont know.....

 

Weird that. Sounds like another thing Asus has to find a solution to. A working turbo button.

 

The performance drop is due to how the multipliers work with intel turbo boost. At stock bclk of 133MHz on the 720qm, the overall clock speed it 13 (12 + 1 due to turbo boost) x 133MHz (1.729GHz)

With twin turbo, the bclk is raised to 142MHz if i remember correctly. Due to the higher fsb clock, turbo boost doesn't kick in so the overall clock speed is 12 x 142 (1.704MHz).

That is when all four cores are used of course.

In order to get an increase in performance, the fsb clock has to be increased enough and heat can become a problem if you overclock too much. Just take a look at the difference in CPU temperature when twin turbo is on.

The bottom line is, you have to use setfsb to gain an increase in CPU speed. I saw a thread somewhere in the asus forums dedicated to OC the i7 on a G73 where it was successfully overclocked.

 

wasn't this it?

its not on the g73 but it is about the i7-720qm

 

Yes, thats the one i think he is refering to.

 

This was discussed in detail in the G73 Benchmark thread

 

You didnt OC it enough to see a performance increase .
You have to OC it more than what turbo boost does, since when youre OCing, the turbo boost doesnt kick in.
I have overclocked my i7-820qm to 2,2 ghz on all 4 cores, so the performance increase becomes noticable. Havent tried more yet and i dont feel like it since i have no real use in overclocking the CPU.

 

Ah, and since you to have a 820qm, how much did you move the fsb slider in Setfsb? Did you do anything else in Setfsb to make it work or was it just the slider you worked with?

 

Just the slider. I think i was at 157 or something like that... Not sure right now.
Do it slowly though. A few steps, set clocks, again a few steps, set new clocks, repeat until you crash if you want to find out your limit .

 

I just dont get it. These results dont make any sence, atleast not to me

Sisoft Sandra CPU Arithmetic test

Overclocked
Setfsb slider @ 168
FSB =152
1978 Mhz
Benchmark Results
Aggregate Arithmetic Performance : 42.88GOPS
Dhrystone iSSE4.2 : 50.81GIPS
Whetstone iSSE3 : 35GFLOPS


Stock
Setfsb slider @ Stock (untouched)
FSB=132
1729 Mhz
Benchmark Results
Aggregate Arithmetic Performance : 44.63GOPS
Dhrystone iSSE4.2 : 51.72GIPS
Whetstone iSSE3 : 37.54GFLOPS

 

Will somebody please post the pll for the G73JH so I can use setfsb. I have searched for hours, tired of reading posts........

 

Nevermind, I just asked abo instead

 

Let me know how it works for you. As you can see on my post above it didnt quite work as i thought it should.

 

Well I just set a new record for the highest clocked Corei7 720QM that I could find, possibly world record idk yet. Submitting all my benchmarks through hwbot.

Click here

 

Grats!

Did you experiance any performance improvments when running benchmarks, for example sisoftsandra?

 

Massive improvements. I'm about to take first place for Super PI as well, just getting the finishing touches on it.

 

How much temperature increase is there? It would be great if we could mod "twin turbo mode"

 

Well right now I've got my AC on max and like 5 fans blowing on the thing since I've been benching all night But it isn't to much of a temp increase because I am not upping any voltages.

 

Any thoughts on why i dont see ay improvements when i overclock my 820qm? Did you do anything else in setfsb except moving the fsb slider?

 

Hmm what are you able to overclock it to?

 

Check the link:

http://img710.imageshack.us/img710/294/overclockr.jpg

If i push the setfsb slider any further it will bluescreen.

 

Delete winflash off your desktop....!!!! Haha

 

Acutally i didnt use it when i flashed to modded vbios, i did the "boot on usbstick". If one doesnt use it, it cant harm you

 

Well it seems that you have reached the wall for that chip. I am having difficulty getting mine any further past my record right now, as mine also blue screens.

 

Yes, the wall is reached but why isnt there any performance increases when running it overclocked like this? I mean its oc´d well above the mhz you normally reach with this processor.... its a pussle to me.

 

Well Im not too sure that the overclock is effective on all 4 cores, as I am only hitting that speed on one core. I know that it throttles down the multiplier when the other cores start working.

 

It behaves infact just exactly as when you press the twin turbo mode. You think it would improve performance with turbo mode enabled when in fact it worsen it.... not logical in my book

 

Well twin-turbo does increase my performance slightly when it is a multi-threaded task like wprime or super pi running on all cores. The only time it doesn't benefit me is when im trying to get the max multiplier out of the chip because it steps the multi down when they all engage..

 

I see, that must be the keyfactor then, the use of multi-threaded tasks will benefit. Standard benchmarks and games will just cause it to lower the multi as you say.

Ok, no point in overclocking it then

 

from this article
Experiment: Does Intel?s Turbo Boost Trump Overclocking? : Introduction

overclock still works, just need to oc a bit higher I suppose.

 

Interesting read indeed, nice find!

 

Yep from what I have found it is best to run a single core in order to get the highest possible clock. ie SuperPi and cpuZ. When you run a benchmark like vantage or wPrime it engages all of the cores and therefore will take your max OC down considerably, lets say from 3.4ghz to 1.95 or 2ghz

 

hi NGX can u tell me how to OC the G73jh.?pls pm me..thanks in advanced..

 

-keph- you need 1 more post to be able to use PM function

 

thx mate..sorry new here...i just really want to try to OC the i7 720qm hehehe..

 

Yea no problem, pm sent

 

I would love to try to oc mine a bit if i could but with turbo my cpu already seems to throttle down in intelburning test (torture one) after 5 mins when it reaches 93 or so degrees. After that the 4 cores seem to go to 990mhz till the temp lowers and after some secs go up to 1.72 ghz again till it reaches 93 again. Without turbo the 4 cores stay at 87 in the torture test.

 

In my experience, using the turbo mode when utilizing all 4 cores (8 logical) the overall speed and the multiplier go down.

 

Thing is at least in my case if the laptop cannot handle 4x 1.72ghz for more than 5 mins before it throttles a bit, might not be worth to try overclocking to 1.8 since it would just get to that temp faster. From what I know my normal temps with that burn test look identical to the few I have seen though. In games and pretty much anything it does not go above 78 with twinturbo but that specific test is evil.

 

I know absolutely that this proc can handle 2ghz on all four cores for more than a good amount of time. The thing is... they gimped it because it's in a notebook. They want low heat and low power usage. The least they could do is give us a damn bios with options for those of us that want to use them... I'm like milliseconds away from setting multiple records with this damn thing but I need to squeeze just that little extra out of it to get there.

 

I wonder if my cpu is ok then:S it never shutsdown or anything but looking in hwinfo32 it throttles for 15 sec or so every 5 mins and then goes full speed again till it reaches the temp. I know you are using additional cooling to achieve such a nice oc but without extra cooling maybe it is not easy to stretch it. Either that or my cpu needs new paste. In any case congratulations for what you have been achieving so far .

 

Eh all I'm using is this lol I set my laptop on top of that when I benchmark and use an external monitor and keyboard/mouse. Works great

 

the 740qm should be much better for ocing... with the higher multiplier already set , we should be able to OC to 2GHz on 4 cores.

 

hi,
few weeks ago I was tried the OC on my G73-A2 and it was great. I was able to reach 158-160 even 162(it was my max stable FSB) with setFSB. Now I cant overclock to 150 because of BSOD. Can be the reason of my problem the power brick? Its quite hot in this summer days. I am doing everything same as before.

 

Either that you need a better cooling solution. I find it's best to up the fsb one or two at a time and let it sit for a few minutes

 

Hello guys and hello NGX, Im a new owner for asus g73 jh laptop and i was wondering if anyone can send me a tutorial including the needed software to overclock my i7 720 cpu.
Thank you

 

hello, the tutorial is here, on the internet. no one needs to send it to you. spend a few minutes looking around and you'll find everything you need.

good day sir.

 

Why no use? Doesn't improve your gaming experience? Increases your FPS significantly or other?

I never oc'cd my 720 so i'm just wondering