F7 installer running very, very slowly

[Langdon Stevenson]

Hi

I am running an F7 install on a Dell PowerEdge 2300 (another one - 
previous one that caused me problems is running fine).

Machine boots up fine, but when the F7 Rescue CD boots up everything 
goes into slow motion.  This happens right from the word go.  For 
instance the initial graphical screen to select the type of install 
takes about 20 seconds to paint, keyboard response is slow as well. 
This is the same throughout the install, both graphical and 
non-graphical.  I expect that the installer would complete in due 
course, but haven't had the patience to see it any further through than 
selecting hard drives.

I have had a look at "top" through a console during the install and it 
reports that there is plenty of RAM available, and no processes hogging 
the dual CPUs.

I can't see any bios settings that might effect the installer.

I have removed all of the RAM and tried RAM from an identical machine 
that doesn't have this problem, but no luck.  It still does the same

I have removed all of the PCI devices (save for the SCSI controller) and 
no improvement.

Is this symptom familiar to anyone?  Can anyone suggest how I might work 
out what is going on?

Any suggestions greatly appreciated.

Langdon