Laptop Overclocking: Unleashing The Beast


-Guinea pig laptop in my case I'm using an Asus G72gx-rbbx05 (more info
-Setfsb v2.3.162.127 (
-Clock Generator in my case it's ICS9LPRS929AKLF
-CoreTemp side gadget (
-Nvidia GPU Observer side gadget (
-CPU-Z (
-PassMark Performance (
-EVGA Precision (


Overclocking is nothing new, especially in today's world with all the different processors we have.
Overclocking has high success rate on gaming towers that were custom built but when it comes to
laptops it's do or die. There are many factors that have a huge impact on the laptop, but your
deadliest enemy is temperature/heat. Overclocking the cpu runs the temp hot enough to fry your
motherboard and more. The way overclocking works is by simply unleashing its inner power. I know
that sounds cheesy but consider this, intel/amd makes a lot of lowe-end processors and a lot of
high-end ones but very few high-end ones are actually purchased. So what they end up doing is
lowering down the clock speed on the high-end cpu to meet the standards of an average cpu speed.
So by overclocking the so called "average" processor you are really just unleashing the full
potential of your cpu.

Let's Begin:

Specs before overclocking:

(Without Turbogear Running)

Core Speed: 1596.1 MHz
Multiplier: x6.0
Bus Speed: 266.0 MHz
Rated FSB: 1064.0 MHz
Core VID: 1.0000V


Core: 275 MHz
Shaders: 550 MHz
Memory: 300 MHz


Core Speed: 1729.1 MHz
Multiplier: x6.5
Bus Speed: 266 MHz
Core VID: 1.0000V
RAM Used: 1747/6144MB
c0: 35ºC 10%
c1: 35ºC 12%
RAM: 28%

Nvidia GPU:

Temp: 53ºC
Usage: 68/1024MB
Clock Usage: 500/799MHz @ x16


(baseline generic intel Core2 Duo P8700 @ 2.53GHz BL 335723 OS Win7 x64)
CPU Mark: 1947.4/2163.6
Memory Mark: 1058.7/1152.3
Disk Mark: 444.6/422.7

Now let's do it again but with turbogear running at 15%...


Core Speed: 2891.2 MHz
Multiplier: x9.5
Bus Speed: 304.4 MHz
Rated FSB: 1217.3 MHz
Core VID: 1.163V


Core: 500 MHz
Shaders: 1250 MHz
Memory: 800 MHz


COre Speed: 1995 MHz
Multiplier: 8.0
Bus Speed: 266 MHz
Core VID: 1.1625V
RAM Used: 1772/6144MB
c0: 42ºC 7%
c1: 42ºC 6%
RAM: 28%

Nvidia GPU:

Temp: 55ºC
Usage: 78/1024MB
Clock Usage: 500/799MHz @ x16


Overall: 965.1
CPU Mark: 1975.5
Memory Mark: 1112.0
Disk Mark: 444.6/422.7

So now we begin the fun part. Now that we know our normal readings we are going to supercharge our laptop.
Take alot of precaution since we are dealing with high temperatures that can potentially fry our motherboard.
Also to be on the safe side only increase the Front Side BUs (FSB) 20MHz at a time in order to fully see the
effect it has on your laptop. I will be run PassMark at every interval to determine the jump our processor has.
This step is not necessary as long as you so how test the true impact of the increase and determine if it's
stable or not. If you happen to get a bluescreen of death (BSOD) then more chances then not you have maxed out
your processor. Again since we are dealing with limited air flow keep track of your temps!!!!!!!!!!

CPU Temperatures:

Dangerous: 80ºC+

High: 60-75ºC

NOrmal: 40-55ºC

Idle: 23-35ºC

LET'S BEGIN!!!!!!!!!!!

First Interval

SetFSB Readings: Current FSB/DDR/PCI-E/PCI Frequency: 304.8/609.6/100.0/33.3MHz
Increase FSB from 537/760 to 557/760

Results: 312.4/624.8/100.0/33.3MHz

Core Speed: 2960.4 MHz
Multiplier: x9.5
Bus Speed: 311.9 MHz
Rated FSB: 1247.6 MHz
Core VID: 1.163V


c0: 43ºC
c1: 43ºC

Nvidia GPU:

Temp: 64ºC


Overall: 1010.2
CPU Mark: 2211.8
Memory Mark: 1071.6
Disk Mark: 447.3

Second Interval

Increase FSB from 557/760 to 577/760

Results: 320.0/640.0/100.0/33.3 MHz

Core Speed: 3035.3 MHz
Multiplier: x9.5
Bus Speed: 319.5 MHz
Rated FSB: 1278.0 MHz
Core VID: 1.163V


c0: 42ºC
c1: 42ºC

Nvidia GPU:

Temp: 64ºC


Overall: 1024.9
CPU Mark: 2256.5
Memory Mark: 1115.2
Disk Mark: 459.4

Third Interval

Increase FSB from 577/760 to 597/760

Results: 327.6/655.2/100.0/33.3 MHz

Core Speed: 3107.4 MHz
Multiplier: x9.5
Bus Speed: 327.1 MHz
Rated FSB: 1308.4 MHz


c0: 59ºC
c1: 59ºC

Nvidia GPU:

Temp: 71ºC


Overall: 1031.0
CPU Mark: 2297.9
Memory Mark: 1127.6
Disk Mark: 458.0

Since I don't want to make this boring I'll just give you the end result after serveral more
increases here was my limit:

Results: 350.5/701.0/100.0/33.3 MHz

Core Speed: 3321.1 MHz
Multiplier: x9.5
Bus Speed: 349.6 MHz
Rated FSB: 1398.3 MHz


c0: 65ºC
c1: 65ºC

Nvidia GPU:

Temp: 73ºC


Overall: 1048.3
CPU Mark: 2406.7
Memory Mark: 1142.2
Disk Mark: 458.5

I maxed out my laptop at 3.321GHz stable per core. I was able to continue increasing but the
temperatures were too extreme to maintain a stable system causing a bluescreen. So were able
to unleash the true power of the processor, RAM, and HDD by increasing our FSB which increased
the timings on the other hardware. The limiting factor of course was temperatures but having
a cooling system other than stock could have given us far better results but I wanted to prove
how much of an increase a stock system could achieve. The other limiting factor was our HDD
which was bottlenecking at the end. In conclusion it's fair to say that we overclocked the hell
out of our laptop. Hope this is of help to anyone overclocking!