|Which specific USB devices are disabled ? |
E.g. if an external drive isn't recognized properly, there are lots of things that can cause that.
MS-7253 is apparently an older mboard model, but the USB controllers should be enabled in the bios Setup by default, even if your Cmos battery is dead or too weak.
If your Cmos battery is dead or too weak (or installed backwards, or has a poor connection in it's socket), after you have switched off the AC power to the computer and then switch it on and try to boot, you will get a "Cmos Checksum Error" or similar message while booting, and be prompted to enter the bios Setup - the time and date will be set to bios defaults rather than the current settings. You can correct the time and date, and set anything else you like in the bios, and the settings will be retained as long as the computer is still running, including after you Restart, but the settings will be lost again after the computer has been shut down. In that case, you need to replace the Cmos battery on the mboard, or fix whatever else the problem is ( the + on the battery must be showing when it has been installed).
Are you SURE you SAVED bios settings after you enabled the USB controllers ?
Are you getting a "USB Device Over Current Status Detected !!" error? If so, you need to change the way you have an added on USB port wiring adapter, or the wiriing for front ports on the case, are wired up to a USB header on the mboard.
Don't install any PCI card in the PCI slot next to the AGP slot unless it's a PCI video card. That slot is forced to share it's IRQ with the video, and the only cards you're not likely to have problems with, or prblems with other things with, when a card is installed in that slot are PCI video cards.
MSI mboards have been well known to sometimes have this problem - electrolytic capacitors were installed on them that were not properly made, and they fail eventually - presumably the mboard manufacturer didn't know they were improperly made at the time the mboard was made.
Open up your case and examine the mboard to see if you have bad capacitors, and/or other findable signs of mboard damage .
This was the original bad capacitor problem - has some example pictures.
History of why the exploding capacitors and which mboard makers were affected:
What to look for, mboard symptoms, example pictures:
Home page that site
- what the problem is caused by
- he says there are STILL bad capacitors on more recent mboards.
Pictures of blown capacitors, other components, power supplies, Athlon cpu's, etc.: