mobile i7 overclocking - anyone?

Hi, if you have any information / knowledge about how or if it's possible to overclock the mobile i7 cpu's eg. M620 model.

please let me know here:

http://forum.notebookreview.com/sony/541385-overclocking-vpc-z-i7.html

thanks!

 

Don't i7s tend to run quite hot? Not a good idea to OC unless the laptop has some killer cooling ability.

 

They mostly do yes. But im just as much interested in the option rather than going crazy with it

 

OCing the mobile i7 is possible, with use of SetFSB application. All You need to know is which PLL chip (clock generator) does the MoBo in Your laptop use. It is not very popular thing to do, as the TurboBoost feature limits the CPU multiplier (when OCed) to keep the CPU within TDP boundries.

 

If you OC, I've read it's recommended to disable Hyper Threading as that will reduce heat and allow for higher stable OC.

HT seems pretty overrated anyways as not all software is optimized to use logical cores.

The only problem is for laptops, usually our bios are rubbish and no option to disable HT available.

 

Also you got 4 cores already so i honestly don't see a point in hyperthreading unless you got ton's of small apps(again no expert but that's what i have noticed.)

hey go to my link in my sig its got a bunch of great links to threads for overclocking all kinda of cpu's and gpu's

 

Singest this was posted in gaming, I'll say theres limited gain from ocing your chip in the aspect of gaming. While sure some games will take a very small boost from the oc, almost all won't. That said if the architecture of games were more similar to what they are like on ps3, then an overclock would be great. The PS3 uses the RSX strictly for graphic assets, all other calculations (physics, particles, etc.) are handled all on the cell. Now both the Cell and I7 are radically different in design, but the idea of letting the cpu run all the extras is the right way of thinking about game design.

The CPU barely gets touched on pc's, I barely shed 10% usage if im lucky, the GPU is the power house in the PC world, does physics, particle calculations so on. This takes a chunk out of GPU performance to run, if developers could send it off to the CPU to handle it we'd see a decent enough boost from our current hardware.

Now the bigger problem here before saying "oh just send it to the CPU" is that pc is a non-standardized platforms, meaning theres more then one of anything you can buy for your pc. Leads to great advances and lean prices but at the same time makes it hard to develop for. I could code a particle engine for a cpu but unless everyone has at least I5s I'd be cutting a market out of that effect, hense why the GPU handles this. Consoles benifit from having one set of standard components developers can design for. And like any console in the past, the graphics at the beginning of the console's life are drastically dated by its end. Even on PS3 you could probably recode Oblivion with all the new techniques that have been developed and squeeze out alot more performance now. The biggest limiting factor now in consoles is the ram the companies decided to go with , but for the time it was good enough.

So anyways just to wrap up, you really shouldn't even bother OC'ing your CPU in the end, on a gaming point of view.

 

the biggest boost in gaming you will see is in games that are single threaded or poorly multithreaded. For an example HL 2 and all source mods will see a boost. My i7 720 does terrible for that game. even when multi core rendering is enabled.

 

Yeh , I agree, like I said some games will get a bit of a boost, not enough to be getting extra 5 fps, and as far as source games go,my G73 rips through them without blinking anyways, im sure thats the same for your G51, The A.I. on AMD cards is supposed to use the CPU a bit more to help out the load, with testing Im not sure I see a difference , that said maybe with an OC it would improve it.

 

try playing cs source with 30+ bots with max graphics....frame rate goes to crap because the cpu can't keep up lol

 

Yeah 30+ bots will be hard but 30+ player severs play just fine. My 740qm does great in source games and I came from a 3.6 GHz dual core.

 

I will have to try this test out, you been practicing ? Im sure if they coded the game to work better with multi threading aswell it would have been a smoother experience, but the games pretty dated, and lots of techniques for coding have evolved since then. Theres games with massive amounts of AI in vision and most current systems keep up. 6 years since the release and the games still pretty solid I gotta say. I think its time for another though.

 

I thought so too until I ran a large number of tests last week. Hyperthreading enabled won in every test except one.

 

Interesting hehe, anyway my i7 is actually a duo core, so 2 cores (4 with hyperthreading) but it runs 2.66 Ghz and turbo boosts to around 3.2 Ghz.

Since most games only use 2 cores anyway, disabling HT isn't a bad idea, specially if it was possible to OC the cpu to lets say 2.8 ? 3 ?

 

Also actual game tests?