It's pretty odd that there's no USB settings in the CMOS. If the ports are functional, they ought to show up in Device Manager as USB or as an unknown device that needs a driver. Do you have the most up to date BIOS?

Gavrilo wrote on Today, 13:23:

Hello guys, whatz up. I hope you are doing fine. One short question. I have Amptron PM-8600 motherboard revision 5.5. There is USB header on it. So I connected bracket with two USBs, started my machine, but there is no USB present, whether in My Computer nor in the device manager. In BIOS there is no USB option neither. I am running Windows 98 FE. What options do I have to get the damn thing running? Thanks.

Could you post a pic of your board?

It could be that the usb pins aren't in the same order as the bracket you are using.
Use a multimeter to check.

https://theretroweb.com/motherboards/s/amptron-pm-8600a#docs

Hang on, incorrect pinout can cause devices not to be detected, but your USB root hub should be detected regardless. This motherboard has a Via VPX chipset. Did you install Via chipset drivers? If not, start there. Via still has them online (4-in-1 4.35), so does Phil's Computer Lab.

Be aware Win98FE is almost as limited as Win95 when it comes to USB. SE would be a lot better - but there you still need chipset drivers.

Some possibilities: you actually have a PM 8600A (double check), you have a PM 8600B with a PM8600A BIOS installed, or maybe you have the earliest BIOS for the board and they didn't include USB support in the initial release. Or maybe the board is old and flaky and the USB is non functional.

https://web.archive.org/web/19990225144208/ht … tml/main_fr.htm

Repo Man11 wrote on Today, 15:49:

It's pretty odd that there's no USB settings in the CMOS. If the ports are functional, they ought to show up in Device Manager as USB or as an unknown device that needs a driver. Do you have the most up to date BIOS?

Hello Repo Man11, strange right? Good point, I will check the BIOS version tomorrow.

Nexxen wrote on Today, 15:57:

Could you post a pic of your board? […]
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Gavrilo wrote on Today, 13:23:

Hello guys, whatz up. I hope you are doing fine. One short question. I have Amptron PM-8600 motherboard revision 5.5. There is USB header on it. So I connected bracket with two USBs, started my machine, but there is no USB present, whether in My Computer nor in the device manager. In BIOS there is no USB option neither. I am running Windows 98 FE. What options do I have to get the damn thing running? Thanks.

Could you post a pic of your board?

It could be that the usb pins aren't in the same order as the bracket you are using.
Use a multimeter to check.

https://theretroweb.com/motherboards/s/amptron-pm-8600a#docs

Hello Nexxen, will do, but tomorrow. Tired like I don't know what.

dionb wrote on Today, 16:17:

Hang on, incorrect pinout can cause devices not to be detected, but your USB root hub should be detected regardless. This motherboard has a Via VPX chipset. Did you install Via chipset drivers? If not, start there. Via still has them online (4-in-1 4.35), so does Phil's Computer Lab.

Be aware Win98FE is almost as limited as Win95 when it comes to USB. SE would be a lot better - but there you still need chipset drivers.

Copy that dionb, will check the drivers and install them. I also have those four files for usb support for Windows 95 somewhere on some diskette. Will try that too.