Hope it didn't failed after the warranty expired. Let us compare our HDD temperature & model (for example Momentus XT). I think mine is Momentus.

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Added on October 11, 2010, 1:41 pmMine 42C but I'm in airconded room right now. Will test it whithout aircond later.

This post has been edited by kizwan: Oct 11 2010, 01:41 PM

@gogo2, what is your HDD temperature? Is yours 5400RPM or 7200RPM? Mine 5400RPM. Actually both of my notebooks only have 5400RPM. I don't know if it will influence the temperature or not, just asking. I'm planning to upgrade it to 7200RPM later. What do you prefer? WD?

How about SSD? My hard disk usage now is around ~70GB & KINGSTON SSD V 64GB is around RM500 (around US$162). Doesn't look economical though. Both of my notebook only have one HDD slot unless I sacrifice the DVD-ROM. Use something like this; SATA to SATA 2nd HDD caddy. Put SSD in the main drive & 7200RPM in the caddy.

It is hard to achieve -10W on A42JV, at least mine. I was able to achieved -11W if I didn't touched it at all. If I check email & browsing I got between (average) -14W to -17W. I'm connected to internet through my mobile phone (usb).

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Added on October 11, 2010, 6:06 pmAcer TimelineX 4820TG not that bad. Good quality actually. I recommend:-
1) Acer TimelineX 4820TG
2) Lenovo IdeaPad Y460

There is one user selling Acer TimelineX 5820TG. Go check it out.

This post has been edited by kizwan: Oct 11 2010, 06:06 PM

My thoughts exactly. The Nvidia GPU can be easily turned ON by any services or applications. I believe this can be fixed with BIOS update.

EDIT: I believe A42JV disadvantages compared to 4820TG is the battery. A42JV only equipped with 6-cell 4400 mAh battery while 4820TG equipped with 6-cell 6600 mAh battery. The different of technology applied on both notebook can also contribute to the differences on battery life. A42JV using Optimus technology where when Nvidia GPU is turned ON, the Intel HD is not turned OFF because the output is go through the Intel HD. Which means a lot of power used when Nvidia GPU turned ON. I don't know what method use by 4820TG though because it use ATI Mobility GPU.

This post has been edited by kizwan: Oct 11 2010, 06:55 PM

Already done that.

Maybe I'll try that when I have more free time.
Yeah, I forgot. I already take a look 4820TG schematic before. I didn't realize the answer is just in front of me.
It should behave like that. I don't know why battery life is poor on A42JV. It should 3 or 3.5 hours at least.

The most important is GPU. Performance should similar whether you run it with i5 or i7 processor (assuming GPU is identical). Depend on games design, you might see certain games run slightly smoother with i7 processor. I found based on specification, Asus N43JQ is good for gaming. It is GT 425M right? However, I found the N43JQ casing doesn't look it capable to dissipate hot air fast enough when playing demanding games. Just my two cents.

Agreed.

Unfortunately Mac OS X is not compatible with this notebook because of the Optimus technology. New MacBook Pro which come with switchable graphics doesn't use Optimus. Instead Apple came out with their own solution. On Optmius notebook, Nvidia GPU is not "connected" directly with output (LVDS, HDMI, VGA, etc). The Intel HD (IGP) is responsible in relaying the output to monitor regardless which GPU processing it. There is no solution to get the Intel GPU to work with Mac OS X yet (on non-apple notebook). Since the IGP controlling the output, the Nvidia GPU is not detected properly. You'll only have better luck getting Mac OS X working on notebook if it have only Nvidia GPU (not switchable graphics) & of course Intel processor.

This post has been edited by kizwan: Oct 12 2010, 03:53 AM

How about the sound quality on N series notebook? Does N series have subwoofer?

That is very hot HDD. Mine never reached 50.

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Added on October 12, 2010, 12:14 pmI'm surprise N series don't have subwoofer. It should have since it is multimedia notebook. Dell Studio have subwoofer & sound quality is very good compared to A42JV.

EDIT: I found at least N71JV is equipped with subwoofer & ... 2.1 speaker. The sound quality on N71JV should be good.

This post has been edited by kizwan: Oct 12 2010, 12:29 PM

May I know why?

No. You can uninstall it if you want.

The calculation should be like this:-
Core i7-740QM
- Turbo 1/1/6/9
- First number is the multiple of 133.33 MHz supported when four cores are active, the second number is the multiple for three cores, the third number is for two cores, and the fourth number is for one active core.
- Normal operating frequency is 1.73 GHz = 1730 MHz
* With 3 or 4 cores active: to 1.863 GHz —————> 1730 + 1 x 133.33 = 1730 + 133.33 ≃ 1863.33
* With 2 cores active: to 2.529 GHz ———————> 1730 + 6 x 133.33 = 1730 + 799.98 ≃ 2529.98
* With only 1 core active: to 2.929 GHz —————–> 1730 + 9 x 133.33 = 1730 + 1199.97 ≃ 2929.97

* When 4 cores active, the frequency is low (1.863 GHz) but remember it running 4 cores. 1.863 GHz 1 core vs 1.863 GHz 4 cores; the later performed much much better.

Quote from Intel website:-


This post has been edited by kizwan: Oct 13 2010, 12:58 PM

No. Running on 2 cores will not double the processor frequency. The advantage of 2 cores vs 1 core is 2 cores can process two task simultaneously compared to 1 core which only can process 1 task at one time. It doesn't double the processor frequency.

This post has been edited by kizwan: Oct 13 2010, 03:51 PM

You just wrote "frequency double" there. Aduii.... Funny, only stupid people call other people stupid. LOL

This post has been edited by kizwan: Oct 13 2010, 04:41 PM

Yeah, whatever. LOL

Yeah me too. It doesn't work effectively though.

Can you take a picture of both notebook screens side-by-side? I want to see the different...