Front USB 2.0 ports wont work during boot

Caledon Ken said:

Could you please explicit, which MB? Asus has so many varieties.

Was operating under the premise that most of their stuff shared the same bios settings more or less. Figured that was an easier descriptor than expecting someone to know the in's and out's of my specific board.

Still, point takin - OP updated :)

Caledon Ken said:

Well our boards turn out to be cousins. I just like to review manuals.

What are the front ports connected to, the MB headers or expansion card / hub?

they are connected to the board header on the board. I do have an expansion card for usb ports but its pcie & only populated with my oculus rift stuff/sensors. Cant wait to do away with that :P

Caledon Ken said:

Try this differently.

When you boot with your USB key installed how are you telling it to boot from USB?


I think I've been reading threads about MBR boots or UEFI boots, are those yours? Think you are making boot media with Rufus. I've read so many threads I can't keep them separated.


Oh, your manual and my manual are almost duplicates. Have you seen section 3.6.12 on page 3-20?

I'll have to pop it back open, i actually have it saved as pdf on my pc so that should be easy. I'll take a look.

its not the format as i initially assumed that was in fact the issue. I tried mbr/gpt/ntfs/fat32 etc.

nothing would boot, until i moved it over to the usb 3 slots lol. then i facepalmed at all the time i wasted, and began this new adventure into understanding how they can work fine during windows - but i get nada during post.

i tried with rufus made installers, memtest made installer, minitool made installer. (as i thought it was the particular installer as well initially)

but even the macrium recovery drive wont work unless its in the usb 3.0 ports.

- - - Updated - - -

so i stand corrected.

its been a good long while.

I looked at the manually and noted it the board only has 1 header for usb 2.0 internally. I have 4 usb 2.0 ports on the front that all work so i had to open my case and do an inventory.

Apparently when i built this pc i bought a small pcb/splitter for that very issue. it connects to said usb header on the mobo, and allows you to connect 2 usb headers to it from the front panel.

well, for whatever reason. works fine within windows, but the pc wont detect them during boot. Disappointed but i reckon theres absolutely nothing i can do about it.

Odd that it doesnt work, but you can all but guarantee thats whats going on.

Bios override. They dont even show in the bios if on the 2.0 front ports.

I can try the other way by smashing the F key during post (i probably did already just dont remember) but im not gonna hold my breath.

Only thing i can surmise (if youre using a splitter without trouble) is that my case 900D has 6 ports on the front. 4 USB 2.0 and 2 USB 3.0.

the 3.0 go to the 3.0 header on the mobo. the 2.0 obviously to their respective header. However its already 4 ports pared down to 2 connectors. Then those 2 connectors go to the splitter, and is further reduced to the 1 header on the mobo.

perhaps that has a hand in it?

Mine is this Robot Check