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Hardware The New MacBook/MacBook Pro/Air Users Thread v4, Share your joy and your pain here

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MetalZone
post Aug 29 2009, 12:16 AM

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The keyboard will not light up if it's bright enough even if you try to adjust the brightness by pressing the keys on the keyboard.

The battery indicator will not light up unless you press the button beside it, which will briefly light up to show the battery level and then turn off. It'll also show the battery level when you unplug your power adaptor
MetalZone
post Sep 1 2009, 01:38 PM

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QUOTE(nimrod323 @ Aug 31 2009, 09:32 PM)
what i meant is highlight everything and click on them.
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Use Command+A to select all.
MetalZone
post Sep 17 2009, 09:50 PM

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QUOTE(gooni3 @ Sep 16 2009, 03:09 PM)
my MBA is still lagging =( i don't know wads going on..

i just got the 2.13ghz dual core model 2 days ago.. and used migration asistant to clone it from my other mac..

sometimes.. it starts to lag when there's 5-6 windows open when using expose.. but it last for mayb a minute or 2 and during that time when i try to scroll up and down safari it has about 2 second delay..

old mac doesn't have any of this shit.. aih..
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Are you using one with the SSD? Contrary to crazyee's comment, modern well designed MLC drives are much faster than mechanical hard drives. The symptoms you mentioned sounds like MLC SSD drives using the JMicron controller which fares badly in average latency and random read/write. However, I highly doubt Apple would put such drives in and they normally stick to the main vendors with samsung controllers. To get an idea of what I'm talking about check this article: http://www.anandtech.com/storage/showdoc.aspx?i=3531&p=1
If you are not using the SSD, ignore the above.
Have you tried calling apple?


Added on September 17, 2009, 9:56 pm
QUOTE(kyon22 @ Sep 16 2009, 10:13 PM)
hi can I ask some advice on macbook white and macbook pro? I'm planning to get my first mac next week. I was aiming for the 13' Macbook pro but the macbook white is quite tempting. What's the advantages that the macbook white has over the macbook pro? Does polycarbonate body get discolored very fast?
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My friend's macbook white got quite a bit discoloured. But then she doesn't care for it very well. If you take care of it well clean it regularly you should be able to keep it in pristine condition.

Here's the differences as far as I can remember. The Pro has:
-Multi-touch trackpad
-Longer battery life
-Backlit keyboard
-Better display
-Aluminium unibody
-Firewire 800 (macbook has firewire 400)
-DDR3 1066MHz RAM (macbook has DDR2 800MHz i think)
-SD Card reader but combined the Headphone out and Mic/Line In into one port (can switch between either or use a 4 pin jack to use both).

This post has been edited by MetalZone: Sep 17 2009, 09:58 PM
MetalZone
post Sep 18 2009, 03:37 AM

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QUOTE(cRazYee @ Sep 18 2009, 12:35 AM)
yes new age one are fast like intel x25 etc
but factory shipped SSD is not as great as you think. Those really fast SSd cost alot more, so fast samsung one is not high performance type. If apple really ship intel x-25 or ocz brand, the price wont be so cheap
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As far as I know the SSD's Apple uses are based on Samsung chips and controllers and no they don't make crap. Decent MLC SSD's have been around for a year already and are constantly improving.
Samsung's current MLC SSD's are really not bad at all and holds it's own against the Intel X-25M especially in price vs performance. Btw, OCZ's latest MLC SSD's (Vertex, Agility) are using the Samsung controllers. So tell me what's not high performance about it? On the other hand, OCZ doesn't actually manufacture the SSD's but instead tests/researches and specifies what they need to the manufacturer; so they are considered a small fry in Apple's eyes.
MetalZone
post Sep 19 2009, 06:55 PM

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Wow so cheap already? From whom? Man it's getting tempting.
MetalZone
post Sep 20 2009, 11:28 AM

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Yes enough. Even if you use photoshop still okay. But when you start to multitask with memory heavy programs, having more RAM makes a lot of difference.

Like I usually run a Windows XP virtual machine in Parallels, with iTunes, Adium, Safari, iCal, Excel or Aperture, things really start to crawl when I had 2GB. Upgrading to 4GB made a lot of difference for me.
MetalZone
post Sep 20 2009, 11:03 PM

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QUOTE(preducer @ Sep 20 2009, 06:57 PM)
i dont understand why must u guys install windows ? cant do whatever u need on os x ?
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I use windows primarily for one program only... MetaTrader 4. I use it for forex trading and there is no Mac version of it. Crossover won't make it run as well.
MetalZone
post Oct 22 2009, 02:10 AM

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Since two of our members had their macbook pro's stolen recently, and questions arising on whether we could track out stolen macs, I thought it'd repost my answer to that thread here:

If you're looking for some sort of tracking...
the answer is Orbicule's Undercover.
Their website explains everything: http://www.orbicule.com/undercover/
give it a read.

I got this for my 13" MBP the moment i got it.
But for maximum protection, it doesn't stop there.
I enabled the firmware protection, which requires a password to enter the boot menu so you can't reformat or even boot from a different partition. I don't know what happens if you change the hard disk though but I think it won't even allow the new hard disk to be used?
I enabled the option in the security preference pane to "request password 5 mins after sleep or screen saver begins". Of course that means u should have a login password.
Since the Undercover software works by tracking the user while online, I need to enable the thief to be able to use my mac. So I enable fast user switching and created another Standard Account (NOT admin) for the thief to use which doesn't have a login password. I also locked down my personal folders/home folder and can only be accessed by me. So in the event my mac gets stolen, the thief has no choice but to use the Standard Account I created and can do pretty much any basic thing except anything that requires admin access. He can't access my folders but he can use every bit of the remaining available space for his own use.
Then hopefully, in due time, I will be able to track that bugger down. And hopefully he/she ain't a tech geek.
MetalZone
post Oct 25 2009, 01:16 PM

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QUOTE(llsphinxll @ Oct 22 2009, 11:34 AM)
hey i plan to give orbicule's undercover a try. was the purchasing complicated for you bro?
any positive/negative feedback? smile.gif
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Sorry for the late reply. I was sick the past few days.
It was easy. I used a credit card.
I got myself the student discount. Just send them proof of full time study for them to verify.
Installing is a breeze as well, download, install and enter your serial number. Just make sure you keep your ID in a safe place either physically or online with no clue of it's purpose. Coz this is what you need to report your stolen mac.
Occasionally check orbicule's website to see if there are updates for your undercover. They are good at keeping their software in tip top condition, releasing v3.2 for snow leopard, though the previous one still works.

I really think there is no reason not to get this for every mac. If you mac doesn't have this installed and it gets stolen, you virtually have no hope whatsoever of getting it back. But with this installed, at least, you still have some hope of retrieving it, and unleash your fury on the thief (if he didn't sell it).


Added on October 25, 2009, 1:38 pm
QUOTE(davidmak @ Oct 25 2009, 02:25 AM)
Like the rest who have said it, a typical discharge & charge cycle can be accounted from the point it is fully charged at 100% and depleted at 0% (theoretical) and recharged at 100%. Thats what we call a typical full cycle. However, it is not always as clear cut. Consider this scenario where you have a fully charged battery at 100%. You use 20% of it (remaining 80%) and then decided to charge it to full again back to 100%. That is also considered as one cycle. So you kinda waste a potential of 80% of charge for that particular cycle. It is important to note that this is not the same as 'memory effect' of older battery technologies. 'Memory effect' prevents the full effective use of the potential charge in a battery.

Some battery manufacturers have mechanisms in place to make sure a battery cell is used in a 'balanced' way. Sony uses a battery care program to limit battery cells to only charge to 80% or lower. That is to prevent it from hitting 100% in case you didn't fully deplete the charges for that cycle. Now I do not know why not hitting 100% is important but I remember back in university days where a very good indicator of a fully charged Li-ion battery is when its temperature suddenly shoots exponentially. Most charging circuitry has these fail-safe mechanism to detect voltage and temperature of the cells. Maybe that has something to do with it.

So for regular and typical usage, if you have started using the battery keep using it until it is fully depleted. And when you charge it, keep charging it until full. And continue to keep it plugged in for as long as possible especially if you don't move from one place or another. If you're mobile, do your best to find a power point. If you have to use the battery, then remember to use it until it is fully depleted. Rinse repeat and you're good to go.

By the way, it is perfectly alright to keep the battery plugged all the time. It will not harm it because battery charge circuitry is smart enough to isolate the battery and power your laptop directly from main power. However, HEAT will reduce the longevity of a battery.
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Sorry but I beg to differ in some aspects. A lithium-ion(cobalt)/lithium-polymer battery (used in laptops) doesn't "remember" how many charge cycles it has gone through. It is simply a figure the electronics count to keep track of the battery.

Li-ion's do not have any 'memory effect' (as you mentioned) unlike Ni-MH batteries (Nickel metal hydride) which do; and isn't actually old tech compared to Li-ion-cobalt; Just different types of battery chemistries for different purposes. NiMH's prefer to have a full charge and discharge cycle, but Li-ion's aren't too happy with that. Not doing a full discharge DOES NOT "waste" that charge cycle.

Having a full charge and discharge once in a while is fine (also recalibrates the electronics monitoring the battery) but avoid doing it on purpose ALL the time (unless that's really your usage cycle then by all means use what you invested for).

A battery charging circuitry doesn't use the temperature of the battery as a charging indicator, but rather as a shutdown and disconnect mechanism, coz if you overcharge or overdischarge a lithium-ion-cobalt, you may get what you call a "thermal-runaway" potentially with flames! Instead it uses voltage as an indicator, and it varies between different battery chemistries.

To quote a fellow flashaholic... (flashlight hobbyists in other words. we live on the edge of loose li-ion cells on our devices so we know the pros/cons and dangers of these little things)
he has summed it up pretty well:
QUOTE(polkiuj @ Sep 23 2009, 10:07 AM)
Lemme shed more light on Li-ion/Li-polymer batteries.

BTW I'm new in this thread.

Our macbook's use Li-polymer, which is basically the same as Li-ion but is not round therefore you can have more capacity per volume(if cells are cubic in nature). Li-ion's are basically round cells and therefore have less capacity per volume.

Li-ion's have 3 enemies. Heat, time and (strangely) capacity.
Hotter = die faster
Longer = die faster
The more charge it has = die faster (to a point only)

Storing @ 30ºC for 1 year, your battery will lose it's capacity faster than @10ºC for 1 year if both are at equal charge.
Storing @ 100% charge for 1 year, your battery will lose it's capacity faster than @50% charge for 1 year if both are at equal temperature.
And of course, storing for 1 year, your battery will lose it's capacity faster than storing for 6 months if both are at equal temperature.

Li-ion seems happiest @ 40% charge, low temperatures.
Also, li-ion seems to not like cycling 0%>100%>0%
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Correct me if I'm wrong though.

This post has been edited by MetalZone: Oct 25 2009, 01:55 PM
MetalZone
post Oct 25 2009, 06:41 PM

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QUOTE(davidmak @ Oct 25 2009, 04:23 PM)
Yes, Li-Ion does not have memory effect. I remember myself specifically mentioning that its not memory effect. As mentioned before, there are areas that aren't clearly defined in how cycles are accounted for. You're right, Li-Ion likes to be charged and discharged many times. Which is why it is perfect for today's electronics and usage lifestyles. Sometimes I wonder why Sony implements charging programs like they did for their VAIOs. There must be a reason.

And of course temperature is not the only parameter charging circuitry look for. They do have dB cutoffs, voltages, and negative dB inputs. What I was saying is that fundamentally, when a Li-Ion cell approaches a fully charged state, its temperature would shoot exponentially. That is the critical nature of Li-Ion, one that is dangerous and bad for its longevity. Sorry if I wasn't clear enough. Writing in the middle of the night does seem to be blurry hehehe...
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No worries, it's just a constructive discussion. biggrin.gif
Yeah I know that u did mention that that it's not memory effect (check my post). Just wanted to clarify things further.
However, just wanna clarify something u mentioned above: "Li-Ion likes to be charged and discharged many times."
Instead, Li-ion likes to be charged but doesn't like full charge and discharge cycles (ie 100%>0%>100%>and so on).

I've not read about of the charging algorithm sony used as u mentioned, charging to 80% of the full capacity. But I can help you explain why they probably did so. Let's give an example. A lithium-ion-cobalt's typical maximum cutoff voltage is 3.2V. Let's say battery A is always recharged up to 3.2V. And battery B is always recharged up to 3.0V only. Battery B will have a longer lifespan than battery A. Because as mentioned in my previous post, i quoted that maximum charge is actually detrimental to the lifespan of the battery. The downside is that, you have less battery capacity to utilise.

Thus, to tie back to the charging parameter you mentioned, manufacturers don't make the charging circuitry to charge to the point the "temperature shoots up" as it would be severely detrimental to the lifespan of the battery; but instead cuts off charging of at a lower voltage, say at a maximum of 3.2V for lithium-ion-cobalt for example.

rx330
Sunday too free? haha. Just feel like engaging in a little bit of technical discussion.
But I think we're going off topic tongue.gif

But anyway, that should give u a better understanding on the perks of your notebook battery.


Added on October 25, 2009, 6:46 pm
QUOTE(theTall @ Oct 25 2009, 04:49 PM)
can i use windows on mac? how?
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Yes.
2 ways:
1. Bootcamp (native windows boot using the full resources of the computer)
2. Virtual machine (running piggyback on top of Mac OS). Programs that can do this: VirtualBox (free), Parallels Desktop, VMWare Fusion.

This post has been edited by MetalZone: Oct 25 2009, 06:47 PM
MetalZone
post Oct 30 2009, 02:22 AM

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QUOTE(rx330 @ Oct 26 2009, 01:23 PM)
from my experience, avoid sony sad.gif
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a bit too late, but yeah, referring to batteries, sony manufactures a lot of batteries for laptops. the older lithium-ion-cobalts of the macbooks were also made by sony i think. not sure who's making the lithium-polymer ones now.

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