Create a swap partition out of some space form the small hd, you can also do this with QTparted. Also, use knoppix-installer-latest-web to get the latest installer.(optional)
Current situation: P4 2.8C/1G DDR Ram/2 HDs
hda1= 15G NTFS OS/W2K Pro
hda2= 115G NTFS data files
hdb1= 15G FAT32 empty (ready to install Knoppix)
hdb2= 65G NTFS data files
1 - Upon booting from live CD at the boot prompt:
boot: Knoppix26 alsa=intel8x0 lang=us screen=800x600 nopcmcia toram
2 - Open up root terminal and enter:
sudo QTParted (*to format /dev/hdb1)
3 - Exit root terminal to unmount /dev/hdb1 (by right clicking mouse and sel unmount)
4 - Open root terminal and enter:
sudo Knoppix-installer (*and follow instructions from there on)
Please correct me if I am missing anything...thanks .
Create a swap partition out of some space form the small hd, you can also do this with QTparted. Also, use knoppix-installer-latest-web to get the latest installer.(optional)

Intel Core i5-12500T SRL5W 2GHz 18MB 6 Core Socket LGA1700 Desktop CPU Processor
$114.99
Intel Core i7-12700 12 Core X208K805 LGA 1700 AS IS
$99.99
INTEL CORE I9-10940X X-SERIES PROCESSOR | 3.30GHZ | SRGSH
$179.99
Intel Core i7-4770 3.40GHz Quad Core SR149 LGA 1150 CPU Processor tested
$35.00
Intel Core i7-9700 Octa-Core 3 GHz Desktop Processor LGA 1151
$79.99
Intel Core i7-3770K 3.5 GHz Processor
$39.00
Intel Core i7-7700K SR33A 4.20GHz 4-Core LGA1151 CPU Processor
$62.95
Matched Pair _ Intel Xeon E5-2698 V4 2.2GHz 20-Core Processor CPU LGA2011 SR2JW
$94.99
Lenovo ThinkCentre M920s SFF Barebones PC Motherboard PSU DVD No CPU RAM SSD
$27.99
Compo MSI B150I GAMING PRO AC LGA1151 16 Gb DDR4 + Cpu I7 6700+I/O Shields.
$159.00