Repeating kernel panics, need help.

Question

Okay, since today my Mac is totally unstable. It randomly freezes, won't wake up from sleep mode. I have seen different forms of kernel panics in the last hour, one with the "Please restart your computer" and another one where I could see lines describing the panic on the screen, just like in SUM.
It gets even stranger. When I restarted it like I was told (Holding down the power button) it didn't boot properly, instead the screen went for red to green to blue, then all three mixed in three different ways. It was like an acid trip. I waited, but it kept on repeating, so I held the power button for another 3 seconds. This time it booted properly, yet froze at the login screen. Next try, I could log back into OS X.
Here's the description of the panic:
"Unresolved kernel trap(cpu 0): 0x700 - Program DAR=0x000000001C4EF040 PC=0x00000000008390A8
Latest crash info for cpu 0:
Exception state (sv=0x34BC2A00)
PC=0x008390A8; MSR=0x00089030; DAR=0x1C4EF040; DSISR=0x40000000; LR=0x00838ED4; R1=0x121FBC50; XCP=0x0000001C (0x700 - Program)
Backtrace:
0x00838ED4 0x002E7EE0 0x002E9DAC 0x0008C4B0 0x000291C0 0x000233AC
0x000AC02C 0x3E3C7374
Kernel loadable modules in backtrace (with dependencies):
com.apple.ATIRadeon8500(4.1.8)@0x831000
dependency: com.apple.iokit.IOPCIFamily(1.7)@0x458000
dependency: com.apple.iokit.IOGraphicsFamily(1.4.1)@0x757000
dependency: com.apple.iokit.IONDRVSupport(1.4.1)@0x77b000
Proceeding back via exception chain:
Exception state (sv=0x34BC2A00)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x34BC1780)
PC=0x9000B1E8; MSR=0x0000F030; DAR=0x0023B00E; DSISR=0x42000000; LR=0x9000B13C; R1=0xBFFFE930; XCP=0x00000030 (0xC00 - System call)
Kernel version:
Darwin Kernel Version 8.5.0: Sun Jan 22 10:38:46 PST 2006; root:xnu-792.6.61.obj~1/RELEASE_PPC
panic(cpu 0 caller 0xFFFF0007): 0x700 - Program
Latest stack backtrace for cpu 0:
Backtrace:
0x00095718 0x00095C30 0x0002683C 0x000A8384 0x000ABD00
Proceeding back via exception chain:
Exception state (sv=0x34BC2A00)
PC=0x008390A8; MSR=0x00089030; DAR=0x1C4EF040; DSISR=0x40000000; LR=0x00838ED4; R1=0x121FBC50; XCP=0x0000001C (0x700 - Program)
Backtrace:
0x00838ED4 0x002E7EE0 0x002E9DAC 0x0008C4B0 0x000291C0 0x000233AC
0x000AC02C 0x3E3C7374
Kernel loadable modules in backtrace (with dependencies):
com.apple.ATIRadeon8500(4.1.8)@0x831000
dependency: com.apple.iokit.IOPCIFamily(1.7)@0x458000
dependency: com.apple.iokit.IOGraphicsFamily(1.4.1)@0x757000
dependency: com.apple.iokit.IONDRVSupport(1.4.1)@0x77b000
Exception state (sv=0x34BC1780)
PC=0x9000B1E8; MSR=0x0000F030; DAR=0x0023B00E; DSISR=0x42000000; LR=0x9000B13C; R1=0xBFFFE930; XCP=0x00000030 (0xC00 - System call)
Kernel version:
Darwin Kernel Version 8.5.0: Sun Jan 22 10:38:46 PST 2006; root:xnu-792.6.61.obj~1/RELEASE_PPCModel: PowerBook6,5, BootROM 4.8.7f1, 1 processors, PowerPC G4 (1.2), 1.33 GHz, 768 MB
Graphics: ATI Mobility Radeon 9200, ATY,RV280M9+, AGP, 32 MB
Memory Module: DIMM0/BUILT-IN, 256 MB, built-in, built-in
Memory Module: DIMM1/J7, 512 MB, DDR SDRAM, PC2700U-25330
AirPort: AirPort Extreme, 404.2 (3.90.34.0.p16)
Modem: Jump, , V.92, Version 1.0,
Network Service: AirPort, AirPort, en1
Parallel ATA Device: MATSHITACD-RW CW-8123, 2.64 GB
Parallel ATA Device: TOSHIBA MK6025GAS, 55.89 GB"
Oh, and another thing, I can't boot from DVD/CD anymore.
Someone please help me, since I need the iBook tomorrow at school.
iBook G4   Mac OS X (10.4.5)   60 Gb HD, 768 Mb Ram, Radeon 9200

Answer 1

Scalepet,
This kind of thing happened to my brother's computer once; though, his was a blue & white G3 PowerMac with Panther. But that's not to specific to what I think may be the problem.
Kernal panics, when they're this frequent and rarely allow you to completely boot and log in, are usually a sign of very, very bad hardware. When hardware goes corrupt-which it does-Mac OS X basically freaks out during the power-on self diagnostic.
Solution? Start removing hardware. No, I don't mean grab the Alan Wrench and start removing the GPU and Optical Drive; I mean removing hardware that you were able to add; basically, stuff that didn't roll out of the factory in your computer.
Seeing as you have an iBook, this option is somewhat limited. But the kernal report is showing that you have 768MB RAM, which means that you have upgraded your RAM. So, lift up the keyboard, get to the RAM, and remove the extra chip; I think that may be what's causing the meltdown. If not, try the Airport Extreme card, if you have one. Also, your external hardware--USB mice, for example--should be unplugged.
Best of luck,
Nick L.