Hi.
Here.s another photo with the Mobo. Maybe it clarifies some things.
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So I did remove the hard drive and it alllowed me to enter the Bios, so I deleted everything from the hard drive and started a new installation of windows xp sp3 x86.
It failed the first time, but went ok. ish the second time. After installing everything, I just got a black screen with Error loading operating system.
So I.ve burned anothed dvd with Recovery Essentials Windows XP and ran that, and applied an automated fix and I could start the PC.
I.ve got this two errors in the process and I have no ideea what they mean.
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Regarding the IDe settings, here.s a photo with the Bios
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I.m searching now for some drivers, as in XP device manager, under Other Devices, I don.t have any driver.
I.ve found a cd with xp drivers for win xp, but there are so many, so I need to figure out which ones are the right one. For example, in LAN drivers I.ve got Atheros, Broadcom, Intel, JMicron, Marvell, Realtek, VIA.
I did this things many years ago, so I guess they.ll come back to me.

At least, now I have available the Standard PC option in device manager, so I can change the energy management of this unit. We.ll see if it works when I.ll get there.