[Chivo]

Hello Gwood, thank you very much for the information. The problem persist. I have to changed only the ultra DMA2 to disable.
I more than sure that the problem must be the parameters for the BIOS from the RTCPU BOARD.

[Chivo]

The problem has been solved, now I will sleep .
I contacted FIVES, they helped me with a zip file to change the parameters on the BIOS of the RTCPU board.
The files not only change the parameters very fast also they modify even the menus, THEY DO SOMETHING ELSE, NO JUST CHANGE THE PARAMETERS; you must have the files to fix the BIOS.
How did I do it?
* PC with WIN-XP, must have 3 1/2 inch floppy drive
* 2 diskettes formated FAT (3 1/2 inch floppy disk)
* Create a DOS bootable diskette. Attachment 500842
* Place files on second diskette (.EXE and .BAT files in root, .CM2 in folder named 2379A02.) Attachment 500840
* Connect RTCPU board to: "AT" POWER SUPPLY - PCI VGA VIDEO CARD- FLOPPY DISK DRIVE- KEYBOARD WITH "AT" CONNECTOR - MONITOR.
* Go inside the BIOS, the floppy drive must be enable and load OPTIMAL SETTINGS, select SAVE AND EXIT
* Insert the BOOTABLE DOS diskette first, wait until load some files in the system and shows the A:\
* Change the diskette and type 2379a02 and press enter.
If everything is correct will show this
Attachment 500844

Thank you very much for your help especially to MR. G.Wood