Motherboard

[Meggsy]

After doing all of this http://www.pcguide.com/vb/showthread.php?t=35043 Now when I turn the computer on it now loads very very very slowly.

It was working fine for a few days. Except that 256MB Ram was only been shown as 128MB Ram.

After detecting the IDE drives correctly it continues slowly. After saying Boot from ATAPI CD-ROM : None... it says that
Realtek RTL8139(X) PCI Fast Ethernet Controller v2.00 (991019)
PXE-E61: Media Test Failure, check cable
Boot from ATAPI CD-ROM : None...

That appears over and over again.

I put the Windows 98 CD-ROM in and it just says
Boot from ATAPI CD-ROM : None...
Boot from ATAPI CD-ROM : None...
Boot from ATAPI CD-ROM : None...
Boot from ATAPI CD-ROM : None...
Boot from ATAPI CD-ROM : None...

And just keeps going.

Do you think the Motherboard has had it??