Hi rodders
... I am intrigued though how Plop manages to access the HDD and CD. Frustrating!
Plop was designed to deal with booting older troublesome devices.
Linux does support a lot of hardware, but if your device didn't have
many people try to run Linux on it, support for your device might
not exist.
As patrikg suggested, you could look through the BIOS.
First of all, get a pad and pen to make notes of any changes in case
you need to undo any of them.
Look for entries dealing with CD, HDD, and sound card.
BIOSs used to let you select things like uDMA, DMA33, and PIO.
Select one of the simpler slower PIO modes.
If you see any specialized settings, like something that ties the CD
to a sound card, disable it.
Any settings designed to optimize performance, disable it.
One other setting I seem to remember. It referred to which
operating system you were using. If it's present, see if that
makes a difference.
And finally, take notes in case you need to undo any changes.