Hello. I had installed a copy of Haiku R1/beta3 on my Acer, and I liked it so much, I decided to install it on an HP ProBook 650 that was lying around. I followed the same steps which worked on the Acer - I wrote the ISO to a USB with Rufus, then booted the HP from that USB drive. The Haiku boot splash screen came up okay, and all the icons (including the rocket) activated. Then the screen went black. I waited a half-hour, but nothing ever occurred. The screen stayed black and the computer seemed frozen. So I then restarted the HP, and tried a few more times. Still nothing. I tried to go into safe mode and also disabled addons, but the installer never loaded after the splash screen disappeared. It seemed that since all the icons activated easily, the installer screen should as well. So I finally gave up.
My configuration is:
HP ProBook 650
BIOS Version: L78 Version 01.40
Processor Type: i7-4800MQ CPU
and 8,192 MB of RAM
Also, a (barely used) copy of Windows 10 is on the hard drive.