.
(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.
Gigabyte AMD B550 UD AC Gaming Motherboard - AMD B550 Chipset - AM4 Socket - AMD
$79.99
***NEW*** BCM RX67Q mATX Gaming Motherboard Combo | Intel i5-3470 | 16GB DDR3
$49.77
Gigabyte Z370P D3 ATX Z370 LGA1151 Motherboard (Support Intel 6/7th 8th 9th)
$59.99
ASUS H110M-R Motherboard Intel 6th/7th Gen LGA1151 DDR4 Micro-ATX i/o shield
$42.00
MSI PRO B650-P WiFi AMD AM5 DDR5 WiFi 6E ProSeries Motherboard
$96.01
HP 710324-002 Z440 WorkStation LGA 2011-3 DDR4 Desktop Motherboard
$39.99
Gigabyte Ultra Durable B550 GAMING X V2 Desktop Motherboard
$87.99
Gigabyte GA-B75M-HD3 Intel LGA1155 DDR3 Desktop Motherboard MicroATX USB 3.0
$26.99
Motherboard ASUS B150M-C Intel LGA 1151 SATA DDR4 Micro ATX
$30.00
GIGABYTE MB10-Datto Motherboard Xeon D-1521- SR2DF 2.40 GHz- Open Box
$110.00