Hi all bro, I want to install Leopard 10.5.5 iATkosh into my Laptop Lenovo Y410. Here are all details of my computer
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Number of cores 2 (max 2)
Number of threads 2 (max 2)
Name Intel Mobile Core 2 Duo T5500
Specification Intel(R) Core(TM)2 Duo CPU T5450 @ 1.66GHz
Core Speed 997.3 MHz (6.0 x 166.2 MHz)
Rated Bus speed 664.9 MHz
Stock frequency 1666 MHz
Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, EM64T
L1 Data cache 2 x 32 KBytes, 8-way set associative, 64- byte line size
L1 Instruction cache 2 x 32 KBytes, 8-way set associative, 64-byte line size
L2 cache 2048 KBytes, 8-way set associative, 64-byte line size
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Anyone can help me and give the guide for I can install it? Sorry I'm a noob in this thing. Thanks so much for your help

Try to disable onboard stuff, like lan and sound, enable XD bit, and try

I accessed to bios but my bios can't modify anything except time/date . How can I install Leopard?? Pls help me...

Just the time? your bios is damn locked :/ theres lots of guides but we all have different hardware, check the HCL, and google for lenovos with leopard, did you try to install already?

Yah, I tried install a lot of times. And the result is only one time successful but no Lan, wireless, and sound.

thats good man, you can install them post installation, just tell me your LAN, WIFI and sound card chipset

My Lan hardware is Broadcom Netlink(TM) Fast Ethernet
WiFi hardware is Intel(R) Pro/Wireless 3945ABG Network Connection
Sound card hardware is Realtek High Definition Audio

I just know all this thing through System Information. If u need more details, can u show me how? Can u help me know how to access to my bios also? Thanks a lots man!

OK still need your LAN chipset
Your Wifi wont work for now, they are working on it, you can check the info here
And need your audio chipset.

to find out them you can install everest in windows and check the info

Lan: Broadcom NetLink BCM5906M PCI-E Fast Ethernet Controller PCI
WiFi: Intel PRO/Wireless 3945ABG Network Adapter PCI
Audio: Realtek ALC262 @ Intel 82801HBM ICH8M - High Definition Audio Controller PCI

Im using Everest software and show you more details about my hardware. Thanks for help me man!

Ok I already told you about your WIFi
For your Audio you need to download and extract: Taruga 1.2 Patcher
Download linux codec dump from linux for Realtek ALC262: ALC262 bump

Just drag the dump file onto the frog icon, it gonna take some, after installation, restart.