P5LD2 Deluxe - 1 S-ATA and 2 IDE drives

I have the following problem:

I installed WinXP SP2 on the following system: Asus P5LD2 Deluxe MoBo
and 300GB Seagate ST330622AS which is S-ATA (no RAID). On the primary
IDE I have two optical drives. This worked fine...

Then I had two old IDE harddrives (Seagate UDMA100) which I wanted to
add to above system. I connected them to the two EIDE ports on the MoBo
(both master as different ports). Started up the system and the screen
got froozen on the initial asus screen. I had a look in the BIOS but
didn't change anything as I couldn't find anything to change. The only
thing I noticed was that under IDE1 was the first optical drive, under
IDE2 was the second optical drive and under IDE3 was the S-ATA drive...
Couldn't see the other drives there. Then I changed in the boot
sequence and there they appeared.... How comes they are not under IDE4
or IDE5...?

Then I unplugged the IDE drives and re-started, but the system was
freezing again after the motherboard check... it never came to the IDE
or S-ATA check. Even though the IDE drives were not connected
anymore...

How can I get rid of this freezing situation? Do I need to reset the
mainboard? And how?

How is the right configuration for 1 S-ATA and 2 IDE drives on the
P5LD2 Deluxe? I boot WinXP from the S-ATA drive.

I'm not specialist in this topic... first PC configuration after 8
years... so any help is very appreciated. Also if any more information
is needed from my side... or more clarification... please tell me.

Thanks a lot
Marc Baumann

I found the solution to the problem:

The controller was enabled, I also had the drivers in Win. So I did a
jumper reset of the mainboard... but still the same problem.
What I did then after checking out all functions in the BIOS was:
I deactivated the ASUS logo at boot... and it worked.

Strange but problem solved.

Thanks anyway!