usb devices all disabled

Micro-star international / Ms-7253
May 2, 2010 at 09:06:13
Specs: Windows 7
usb devices all disabled after system startup,
and then i have to enable them all manually in the bios.
this doesn't happen on a restart.
what can be the problem and how can i solve it?

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#1
May 2, 2010 at 10:18:36
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:
http://members.datafast.net.au/~dft...

What to look for, mboard symptoms, example pictures:
http://www.badcaps.net/pages.php?vid=5
Home page that site
- what the problem is caused by
- he says there are STILL bad capacitors on more recent mboards.
http://www.badcaps.net/

Pictures of blown capacitors, other components, power supplies, Athlon cpu's, etc.:
http://www.halfdone.com/Personal/Jo...


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#2
May 2, 2010 at 12:51:24
hi,

thanks for your help.

every time after start up everything is disabled on default:

usb 1.0 controller
usb 2.0 controller
usb operation mode
usb key function
usb mouse function
usb storage function

after enabling everyhing manually,everything works fine.

and yes,i saved the bios settings after enabling usbcontrollers.
i dont have the "USB Device Over Current Status Detected !!" error.
and i just openened the case but i don't see any bad capacitors, and/or other findable signs of mboard damage .

do you have any other possible solutions?



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#3
May 2, 2010 at 14:06:32
Other than defective mboard......

If you have flashed the bios and doing so changed the mboard's bios version, you should always load bios defaults in the bios Setup after the flash is finished, otherwise the bios may not work properly, because usually flashing the bios does NOT clear the previous contents of the Cmos part of the bios.

If you have flashed the bios using a bios update version for the wrong mboard revision or version, if the bios works at all, it probably won't work properly. A change in the mboard's revision or version usually indicates at least one chip on the mboard is different.


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Related Solutions

#4
May 2, 2010 at 14:17:56
i have never flashed the bios...
should i flash the bios,so that it will perhaps solve the problem?

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#5
May 3, 2010 at 08:26:55
No.
Flashing the bios will not solve the problem.

Obviously, if these things were not being auto disabled previously with the present bios version, then the present bios version has nothing to do with your problem.

I've been answering questions online since the fall of 2002, and I've never heard of anyone having your problem.

If your mboard is not damaged,.....

In theory, if you have a PCI card other than a PCI video card in the PCI slot next to the AGP slot, it's possible that's what's causing your problem.

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 problems with other things with, when a card is installed in that slot are PCI video cards.

You could try going into the bios and
- loading bios defaults, Save settings
- change the setting for PnP aware operating system or similar to the opposite of the setting it now has - e.g. No to Yes or visa versa, Save settings.
- disabling the built in things you never use to free up more resources for other devices - e.g. a Com or Serial port, a PS/2 mouse if you never use one. Disabling a parallel port usually is of no help since only other parallel ports can use the same resources.

Regarding you might have an IRQ sharing problem you need to fix,
See response 3 in this:
http://www.computing.net/answers/wi...

Rarely, one USB device may conflict with another USB device, and if so that causes problems. If you have more than one USB device plugged in, try plugging in only one at a time, or changing which USB devices are plugged in, to see if the problem goes away when a certain thing is not plugged in.

E.g. I have a Logitech combo USB / PS2 mouse that conflicts with a certain USB device when connected via USB - either one or the other device does not work when both are connected - but the mouse works fine in any situation when connected via it's USB to PS/2 adapter that came with it.


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