Help with ASUS Mobo, please....

S

sherlock

New Member
Hi everyone,

I have an ASUS P4P800 Deluxe mobo in my computer. For some reason, the on-board audio and the USB ports both stopped working. I've done all of the usual "fixes" but cannot find out what happened. As a reference,
1. I removed and reloaded the drivers for both audio and USB (WinXP).
2. Checked all jumpers and connections on mobo.
3. Checked BIOS settings.
4. Cleared and reset BIOS as per mobo manual.
5. Flashed BIOS with latest version.
6. Disconnected front USB connectors.
7. Checked the power supply.

WinXP recognizes both audio and USB as functional and working. I get absolutely no sound from the on-board audio. If I add a PCI sound card, I can get sound normally through it. I cannot hear the POST messages through the add-on card though. (Yes, POST audio is enabled in BIOS.) Funny thing is that I can get the system boot check "beep" through the internal computer speaker, although nothing else.

As far as the USB, same thing. WinXP says it's working. I've plugged my 2 memory sticks into every USB port with no results. (Memory sticks are both fine.) If I add a PCI USB card, the ports on the card work. I can transfer data back and forth through the USB card. As a note, when I plug the memory stick into the USB card, the stick internal light comes on steadily for several seconds. If I plug it into the mobo USB port, the light just flashes on quickly, then off. It almost appears that there's not enough power getting to the mobo USB ports. There's no evidence of smoked parts, bulging capacitors, burned wires, etc.

I'm open to any reasonable suggestion, short of replacing the mobo. By the way, everything else (hard drives, CDs, floppy, processor, memory, internal LAN, all fans, mouse, keyboard) work normally. I'll most likely just bypass the audio and use the PCI card, but I'd really like to find a solution to the problem, especially for the USB ports. Any help is greatly appreciated!!

sherlock
 
The first place to look there is in the device manager under "Ubiversal Serial Bus Controllers" being the last section at the bottom there. Click the plus sigb to open that up and look for any yellow marks on anything.

That will the place to look under the "Sound, Video, and Game Controllers' as well to if you have any seen for the onboard sound.
 
Thanks for the response, PC eye.... I've already done that. Control panel shows all devices installed and working. No yellow exclamation marks or question marks on any device. That's what's so puzzeling.... Everything LOOKS fine, yet the audio and the USB ports won't work.

sherlock
 
Often you may have to right click on the problem items and use the uninstall option when drivers simply sit around inactive while nothing appears wrong. Windows is then forced to redetect them and prompts or simply reinstalls the drivers on the next boot up. For the audio you will need the board's software cd in to browse the audio driver folder when prompted while the usb controllers Windows will have to replace.

Another tool found in Windows since 98 is the system file checker. With the XP installation disk in the drive type "sfc /scannow" in at the Run prompt and hit enter to start that going. That will verify as well as replace any main files found missing or damaged.

One other thought would be on anything just installed lately seeing a bad install resulting in registry glitches. If you are seeing these problems after installing a new program you might end up using the system restore to see sound and usb working again before considering a repair or full reinstall of Windows.
 
Well, I've already reinstalled WindowsXP and let it reinstall the drivers and that did nothing. I even removed the battery and cleared the BIOS, then reset everything. While I can get around the problems by using plug in cards, it's now a challenge to find out what really happened. But I'm still open for any other suggestions.....

sherlock
 
YES it is downloadable from http://www.microsoft.com/downloads/d...DisplayLang=en but also from
http://www.soft32.com/download_123572.html
and also from
http://fileforum.betanews.com/detail/Microsoft_Windows_XP_Service_Pack_3/1197391546/1 amaonst others
so who knows where he got it from (if he did) and what sort of damage it could do
i was just asking to cut out an obvious question as no-one has asked if he downloaded anything prior to his problem
other than that i agree with pc eye With a fresh install and clearing of the cmos the last thing would be trying a bios update if the latest version isn't already on. It sounds like Windows is detecting functionality while no power is being supplied to either by the board itself.
 
SP3 will be a roll up of all the current updates into one large update when finalized. It may by then include a few more than presently seen at the update site besides IE 7 now seen as a regular update as well. Hopefully by then the final version of IE 8 will be available since that is also in beta at the moment.

If anything the usb ports should have been working in full once all steps taken so far were done since that is enabled by default. With the onboard sound that would be determined by Windows simply not making fresh drivers active since it is being recognized as working or a failed audio chip.

The quick trip into the device manager to open up the usb section there will show if anything is yellow marked from the drivers not going on properly. You may have to go to Intel support site directly if not Asus to see the latest chipset drivers installed. http://support.intel.com/
 
No SP3 yet... I have to agree that there is probably a power buss problem in the mobo. Nothing wrong, it just doesn't work... anymore.... :D

I've been tempted to jumper a 5 volt line to the USB +5V line on the mobo and see if that restores any of the USB functionality. I'm not sure if that will mess up anything else, though. I'm now using a PCI audio card and PCI USB cards to regain the functions and they seem to work fine. Maybe I'll just go that route and when the mobo finally quits I'll replace it. Thanks all for your suggestions.

sherlock
 
I wouldn't manually try feeding power in since that could cause further damage. You can also add an additional hub through the pci adapter to see more ports since those use a separate ac to dc wall adapter if needed. It's not the best but works.

For sound especially for gaming and multimedia it still seems to take a good expansion card to get the best from one of those even while sound quality for onboard has seen improvements. Hopefully the board will still last until you are ready for an upgrade.
 
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