.
(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.
ASUS H110M-R Motherboard Intel 6th/7th Gen LGA1151 DDR4 Micro-ATX i/o shield
$42.00
***NEW*** BCM RX67Q Gaming Motherboard | Intel Q67 2nd/3rd Gen. | LGA1155 | DDR3
$29.77
***NEW*** BCM RX67Q mATX Gaming Motherboard Combo | Intel i5-3470 | 16GB DDR3
$49.77
Micro ATX Desktop Motherboard ASUS H110M-C LGA 1151
$31.95
Asrock Z390 Phantom Gaming 4S/AC Wifi 8th/9th Gen Intel 1151 Motherboard Bulk
$47.39
ASUS Prime Z390-A LGA 1151 Intel Z390 SATA USB 3.1 ATX Motherboard NO I/O
$99.00
MSI B450M PRO-VDH MAX AM4 AMD B450 USB3.2 Micro-ATX Motherboard
$67.99
Gigabyte AMD B550 UD AC Gaming Motherboard - AMD B550 Chipset - AM4 Socket - AMD
$89.99
BTC-S37 Mining Motherboard Kit /w SSD & Ram Preinstalled
$59.99
GIGABYTE MB10-Datto Motherboard Xeon D-1521- SR2DF 2.40 GHz- Open Box
$121.50