Stop sign on the gray apple screen, Two weeks of pain

[josephrave]

Hi Guys,

I desperately need your help

I've been trying to install a retail Mac 10.5.6 for two weeks already. I tried different kinds of boot loaders but I can't progress any further on a gray apple screen with a stop sign.

Here is my laptop specs:

Processor: Intel® Celeron Processor M900
(1 MB L2 cache, 2.2 GHz, 800 MHz FSB)

Chipset: SiS M672 + SiS 968
Memory: 2GB DDR2
upgradeable to 2GB with discard

Display Screen: 14.1" WXGA TFT LCD
(1280 x 800 pixel resolution)

Video Type: SiS Mirage 3+
Hard Disk:160 GB SATA HDD
Optical Drive: Built-in DVD-RW Multi-Drive
Weight 2.3 kg
Card Reader: 4-in-1 Card Reader
Operating System: Free DOS
Productivity Software: None
Network Interface: Built in 56k Modem, Built in 10/100 LAN
Wireless LAN: Integrated 802.11 b/g wireless LAN
WebCam: Neo Motion Eye 1.3 Megapixel
Battery: 6 Cells (2.0-3.0Hours battery life)
I/O Ports: 3 x USB, 1 x VGA port, Express Card 54 slot, S-video/TV-out (NTSC/PAL) port


Here are the boot loaders that I've tried:
asus_p5w-dh_boot-132.iso
BOOT-KABYL-BUMBY
ga-ep45-ds3r_boot132.iso
grub-dfe.iso
LegacyBootCD.iso
osx86svboot.iso