Resolution Low or High?

Resolution

SO a quick explantion of resolution is: how many pixels are displayed on your screen. What this means is the quality of picture on your screen. 

The High the resolution the better the picture looks. The Lower the worse it looks. BUT the Higher the resolution the more power it takes to run it. The Lower the resolution the less power it takes to run.

SO being on your PowerPC and you have already done optimizations [1] [2] [3] and things are still going slow, it can't hurt to tune down your resolution.

To change your resolution:

System Preferences > Display

Then you will see your resolutions options a box in the bottom left corner.

Mac's have never had a killer graphics card/chip the lowest resolution you should go to 800x600, unless your running off something less than a PPC G3.  You should try all your resolutions options though. 

Resolution will also be defined by your Monitor. For PPC Laptops this isn't a big issue, but for desktops if you connect a really New full HD display to a super old Mac, running a say 1920x1080 will kick your performance in the balls.

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Powerbook Backlit Keyboard FIX

Chances are your keyboard backlight isn't even broke ^_^

FIRST:   Identify

Make sure you have a Powerbook with a backlit keyboard, other wise why are you here.

SECOND:  Test

Make sure it won't come on, if your pressing the button to turn it on (F10) and nothings happening, you are probably in a well lit room, in which case it won't come on. Even when you cover the light sensors. SO take it into a completely dark room, no natural light, then try it. 

THIRD:  Reset PMU

IF it stillllll doesn't work, turning it off, unplug the battery and power adapter then hold down the power button for 10 seconds, then reboot, when booted back up, it should say your clock and what ever has been reset, change the clock and date back to normal, then reboot again ( if you don't reboot some internet apps might be messed up until you do) THEN see if it works, if it still doesn't try these link:

http://support.apple.com/kb/HT1431

also google is your friend.

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How to take apart Powerbook G4 Battery

HERE

I didn't make this guide, but I did find it useful, once upon a time, I had a Powerbook G4 that I bought used and it came with a dead battery.

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