During installation of suse, grub wants to be placed in mbr of intel raid0 (can’t boot from it). I don’t want that because i have single sata disk (bootable) (sda) on which are installed windows and installing suse, i want to place grub in mbr of that disk. All other linux distributions like ubuntu, mandriva, sabayon… are placing bootloader in mbr of that single disk, why than suse wants to put grub in mbr of raid0? Where i can change that? 
Hello and welcome here.
Try installing to the mbr of sda from a console. Here are the commands
user@suse:~>su
grub
grub > root (hdx,y) ------- designate the partition containing menu.lst
grub > setup (hd0)
grub > quit
To translate from Suse hard drive language to Grub language, subtract 1; e.g. sdc3 is (hd2,2); e.g. sda1 is (hd0,0); e.g. sdb11 is (hd1,10)
Luck
Thank you for quick reply, but how that can be done from suse installer?
When you get to the screen headed “Installation Settings”, click “Booting” and then the TAB “Boot Loader Installation” and put the check mark into MBR (provide that menas the MBR of sda. I’m having trouble visualising your setup – but where to place the Grub bootstrap code is under that TAB.