First, you need to ensure if your BIOS recognized CD-ROM.
Second, confirm the boot sequence of your system i.e. CD-ROM should be selected as first boor device in the boot sequence.
Now, for SCSI drivers, access the following URL, select the OS which in your case will be "Windows Server 2003 Enterprise" from the drop down list and download the drivers for SCSI. You will also find drivers for LAN and ATA from this URL for your motherboard in case you need them.
Moreover, did you consult TA (Technical Advisory), FAQs on SE7501WV2 Support Website? In case you haven't, I'd advise you to visit the support site for your motherboard.
Proceed with the installation and in case you encounter any further problems, don't hesitate to get in touch; we will be glad to help.
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