Problem installation SL 10.6.2 by Hazard

[LORENZOGA87]

i guys
the latest time i have got problem with installation of SL client 10.6.2 and i solve with this configuration
blacknight kernel
Chameleon RC3 CPEFI 10.5
AMD Patch
ATI 43X0 45X0 46X0
VoodooHDA v2.5.3
ElliotForceLegacyRTC
ATI ATA
AHCI SATA FiX
Legacy AHCI SATA Fix
IOATAFamily SATA Fix
About This Mac Fix
EvoReboot
IOATAFamily Fix
OpenHaltRestart
OrangeIcon Fix
SMBiosResolver
UUID

now i have update my pc from 4 gb ram to 8 gb ram and i have change all the HD
i have used the latest worked configuration and now after the installation the pc shut down and give me an error
"cpu halted" and after it shut down without give me the opportunity to read other message...
what's wrong?

i have tryed 8 times or more to install SL with different kernel and configuration but i have the same result. can be the new ram the problem?

[kj.web]

Do you have the old hard drive with a working system on it?
and do you have an system which can contain 3 HDD's? and with an working Mac OS X?
Then you can clone the working one to the other one, if you want to reinstall, remove some memory, because more then 4Gb Memory isn't recommended.

[LORENZOGA87]

i solve the problem ...it was the ati radeon 4670...
new problem yeah.
I have a lot of problem with snow leopard (i can not sleep )
now it booting well.
the problem is :
i have 8 gb ram and i need always to write maxmem=4086 , if i write maxmem= 8000 it shut down the pc)
if i update the kernel from blacknight 10.2 to legacy kernel 10.6.6 it find all the ram 8gb 1600 mhz but all application doesn't work.
i try for graphics card (my max resolution is 1440x900x32) and with a lot of kext that i have tried the max resolution that i find is 1280x1024x32...
i tried every kext i have found in "www.kext.com" or insanelymac.com or here but nothing or black screen or kernel panic or 1024x768x32 resolution... my boot loader i PCEFI 10.6 (with PCefi 10.5 the same)
someone can tell me why i have that problem and a solution.
Sorry for bad english , i'm italian....
thanks