Ok, here goes...
Memtest86 - Failed to boot
Memtest86+ - Failed to boot
(use binary directly, works fine)
Docmem - Boots but locks up
WinDiag - Works
TestMemIV - Works by the looks of it
MaxBlast - Failed to boot
Seagate Disk Manager - Works
Seagate Disc Wizard - Failed to boot
Samsung Disc Manager - Failed to boot
Darik's Boot & Nuke - Caused reboot whilst loading kernel image
LZ Dos (dosubcd.igz) image failed no matter what QHIMEM option selected
error stated "No XMS manager (himem.sys)". Works fine in VM (not surprising) so I don't see anything is missing. Maybe this ver doesn't like my rig...
My test rig:
Athlon XP 3200+
1gb DDR PC3200 Ram
Nvidia 6600gt (AGP)
Two SATA 120gb HDD (without RAID) & one 250gb EIDE
DVD-RW & DVD-ROM
This might not help but I'd rather be thorough!