First of all, Hi everyone.
I was trying to install iPC osx 10.5.6 yesterday but it didn't go well. got stuck on loading screen with apple logo and a crossed-circle on it...
Which settings and which version of osx is better to install on my pc?
And maybe some more info and help with this.
Thanks.

Parameters are:

Motherboard
CPU Type: QuadCore Intel Core 2 Quad Q9300, 2500 MHz (7.5 x 333)
Motherboard Name: Gigabyte GA-EP43-DS3L (2 PCI, 4 PCI-E x1, 1 PCI-E x16, 4 DDR2 DIMM, Audio, Gigabit LAN)
Motherboard Chipset: Intel Eaglelake P43
System Memory: 4096 MB (DDR2-800 DDR2 SDRAM)
BIOS Type: Award Modular (08/18/08)


Display
Video Adapter: NVIDIA GeForce 8800 GT (512 MB)

Multimedia
Audio Adapter: Realtek ALC888 @ Intel 82801JB ICH10 - High Definition Audio Controller

Storage
Disk Drive: SAMSUNG HD501LJ ATA Device (500 GB, 7200 RPM, SATA-II)
Optical Drive: VXDV DVD-ROM DVDR S90 SCSI CdRom Device

Input
Keyboard: Standard PS/2 Keyboard
Mouse: PS/2 Compatible Mouse

Network
Network Adapter: Buffalo High-Speed Wireless G USB Network Adapter WLI-U2-KG125S (192.168.1.64)
Network Adapter: Realtek RTL8168B/8111B Family PCI-E Gigabit Ethernet NIC (NDIS 6.0)

I would try using iPC 10.5.6 Final Release. I have tried many other distros and none of them worked except this one. Boot from CD with: cpus=1 -v
Post your results.

-IZasPIE

You need to set your SATA to 'SATA AHCI Mode' support and Enable 'USB keyboard support', this also done in the in the intergrated peripherals sub-section in the BIOS

After that you should be able to install OSX without problem

Here a guide for RETAIL installation for this mobo
Gigabyte GA EP43 DS3L Vanilla Installation Guide- Written for Noobs by a Noob.

Here a mini guide for iPC
iPC 10.5.6 successfully installed on Gigabyte GA-EP43-S3L. | OSX86

Hope it help, try again and report back your progress ;D

thanks. install went fine and it works. only problem I have is the audio, it's ALC888 i have tryed many things but can't get it working.

Lets see, check if you have a lil speaker on top menu, if you do go to system preferences then sound, select output tab, and select the right output

If you dont try fresh installation, delete APPLEHDA, ALCinject, HDAenabler from your extensions

Get kexts for ALC888 from my guide and reboot

fresh install helped after install added drivers with kext helper, then after restart got the sound working but ps/2 fix did not work, had to boot from dvd and update them, now everything seems to be working!
would be awesome if the buffalo usb wifi adapter worked, hate the cable :/ but thats the least of problems
thank you very much!

Good to hear that, you got ps2 working now right? let me know if you need with that ;P

You can get a wifi usb for like $10 check in the HCL, they work out the box and some even support airport ;D

yeah got the ps2 working, using them right now. would be better if estonian keyboard layout was working, but us is fine ;D
one more question, will the system crash if it will be updated to 10.6 retail or some other version? sorry for so many questions, I am new with osx...

If you wanna update leopard just follow the guide about to, theres a sticky for 10.5.7/10.5.8

if you wanna update to snow leopard, go to snow section theres a guide there, and think theres guides for your mobo too ;P