.
(specifically, HP's Pavilion P6-2310)
Excerpted from http://distrowatch.com/weekly.php?issue=20121126#news
Boot machine while pressing F10
Find Secure Boot in the menu tree, ignore warnings
Disable Secure Boot feature
Enable legacy boot options
Enable specific legacy devices, such as USB devices
Save and reboot while holding down F9
If this doesn't work for your device, refer to Jesse Smith's article for clues.
Also, post your solution if some other scheme works for you.
Vintage Iomega ZIP 250MB SCSI Parallel Port Drive w/ 100MB Disk - TESTED/WORKING
$129.99
Vintage SGI Silicon Graphics F180 Flat Panel Display Monitor CMN014/061-0053-001
$499.00
VINTAGE APPLE MACINTOSH POWERBOOK G3 UNTESTED NO POWER CORD
$64.99
Vintage AppleDesign Keyboard M2980 and Apple Desktop Mouse II M2706
$49.99
Vintage National Semi EPROM MM5203Q White Ceramic & Gold
$89.00
Vintage IBM 5150 5160 Personal Computer PC XT Drive cover Factory
$79.99
Vintage Classic Apple Macintosh System Boot Install Disk Floppy/CD *Pick Version
$10.39
Z80 - NABU PC & Keyboard - Vintage New Old Stock (Retro 80's)
$139.99
SEALED Vintage Western Digital Value Line Hard Drive 3.5-Inch Enhanced IDE 25 GB
$100.00
Vintage Computer Chip Gold White Ceramic Intel C1702A Static EPROM 2048-bit 1972
$95.00