920xm questions

Now, let me first say that I will not be able to see the responses to this thread for 4 days so don't worry if I don't reply for a bit, I haven't abandoned it. I am planning on soon purchasing a 920xm along with some AS5 to upgrade my current 720qm, and I just have a few questions regarding the procedure. I have found the cpu replacing video on here somewhere, so nothing like that.

1. Will I need to clean the heatsink to remove the old thermal material? And, if so,

2. What would you recommend to clean the heatsink with?

3. Once I have replaced the cpu, will I need to download any new drivers or anything, or does windows automatically do that? And finally,

4. What method of OCing would you recommend? Throttlestop with multipliers or SetFSB with bus speed? Along with that,

5. Max safe temps?

Thank you in advance.

 

isopropyl or articlean

throttle stop

plz search for temps

 

Have a look @ link

http://forum.notebookreview.com/ali...placing-thermal-compunds-gpu-cpu-m17x-r2.html

 

ThrottleStop lets you adjust the turbo multipliers but more importantly than that, it lets you adjust the turbo TDP/TDC power settings. With proper cooling, that can really unleash the true power of the 920XM without needing to increase the peak multiplier hardly at all. I'm a little biased but it's definitely a must have tool for the Extreme CPUs; Core 2 or Core i7.

The Intel thermal throttling temperature is 100C and the Intel thermal shutdown temperature isn't until 125C. Leave yourself some headroom so you aren't too close to 100C but other than that, there's no need to get too concerned about the core temperature. Intel builds CPUs that can run quite reliably even at some very hot temperatures.

 

^^ a little biased unclewebb?
either way, yeah throttlestop is the best way to OC it.
messing around with the tdp/tdc settings in conjunction with multi can yeild some amazing results. i recommend a little at a time however to avoid crashes.

i used arcticlean, it does as advertised. for sure the 2nd bottle in the arcticlean is alcohol. the first... smells like some residue remover my mother used to use.

oh btw, i too went from the 720qm to the 920xm and all i can say is WOW what a difference!

 

do I have to turn on throttle stop for the changes to take effect or just set the changes i want?

 

I got this one last post for the next two days, and I just wanted to ask a question that might be very stupid. Being new to the overclocking world, I have to ask what TDP and TDC are and what they do, as well as what % increase is considered high. Sorry if this is a stupid question!

 

not a stupid question, a good one actually

TDP Thermal Design power link below

Thermal design power - Wikipedia, the free encyclopedia

TDC stands for thermal design Current or in other words it is the amount of current that the CPU can draw.

the amount of current that the CPU or GPU draws has a direct relation to the power that is dissapated in the form of heat. in other words more current = more heat,

the voltage used also plays a role, but in this case it is considered a constant. (the voltage is regulated to remain at the same level)

 

Thank you very much! What % increase of these two values would be considered a mild overclock?

 

the only real way to get a feel for the resulting increase is to monitor the rise in temps, and the benchmark score values result,

If you go too high the temps will exceed the design limits and you typically get artifacts on the display or computer crashes.

IMO if i am over clocking I like to see my temps stay below 80 c at peak load and fans on high.

 

Now for the really stupid question: I read your link about TDP and explanation of TDC. Does increasing these basically let the CPU clock itself up? Or am I just not getting this at all?

 

when you increase the clock speeds the CPU or GPU uses more power

 

So once I increase TDP/TDC, that will then allow me to increase the multiplier further with throttlestop? Sorry being a complete idiot here.

EDIT: Okay, I just read one of unclewebb's posts from another thread, which has lead me to believe that increasing TDP/TDC will allow the cpu to run higher turbo boost with all 4 cores. Correct me please if I am wrong.

 

The 720QM does not allow adjusting the turbo multipliers or the turbo TDP/TDC.

With ThrottleStop you can adjust either the turbo multipliers or turbo TDP/TDC values on the Extreme CPUs (920XM / 940XM) and those settings should remain until the next reboot. ThrottleStop changes registers within your CPU to set these values so once that is done, you don't even need to leave ThrottleStop running. You can exit it if you like but it's a good monitoring tool and is very light weight on system resources so you'll never notice it if you leave it minimized in the system tray. The multipliers and core temperature it shows for each thread are very accurate and can help guide you when increasing the turbo settings.

Edit: Here's an excellent example of how a 940XM will turbo throttle when fully loaded when you are running the default TDP/TDC settings.

http://forum.notebookreview.com/6620179-post4771.html

Thanks 5150Joker. The multiplier is averaging less than 19X. By increasing TDP/TDC, the average multiplier can reach 26 or higher if you can find enough power and find a way to keep it cool.

 

Hmm, is that a new version of throttle stop with the temps? When I get a dice cup and some dice, this program is going to be the best thing since sliced bread.

 

Your getting a dice cup
addiction much ? I might need one too now that your going to that extent, i might go further, you know put it in a chest freezer with a dice cup

 

Lol, yea, I'm looking into it for when I get home, riggin it up and running some benches on it for the CPU. Not sure on GPU yet. My fiances sister has the dice hookup. I think it'll be fun ro run an M17x with subzero CPU temps

 

I recommend MX3 instead of AS5 (especially for a first time use). I just apply a line across the CPU DIE and close the heatsink with excellent results. I use Articlean and purifiers before.

 

There is a DTS / Temp button in ThrottleStop so you can click on that and switch back and forth between the digital thermal sensor reading which is designed to count down to zero which signals throttling to begin or you can view the CPU core temperature. There's also a GPU temperature option now but it might not be supported by the ATI mobile drivers.

I also recently added the ability to save a different TDP/TDC setting for each profile but I haven't officially released that version yet. 5150Joker's testing of this new feature looks good. It should be useful since you will be able to switch between different profiles based on core temperature and automatically reduce the TDP/TDC until the temperature is back within your desired range.

 

Sounds great! Can't wait to test this.