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No Audio output device installed DV2815nr

[ Edited ]

Im gona go crazy but before II do I want to ask if someone can help me.


I did complete system restore with HP recovery software.


 initially all was fine but at some point sound icon in taskbar kept getting red (x) on it sometimes. At one point it showed permanently the red-(x) symbol and Audio device not available.



I spent 3 days putting system up to date and I have no audio.


what I've done:


  1. services: windows Audio is on Auto and started
  2. tried reinstalling conexant driver from system restore
  3. tried installing Conexant driver downloaded from HP site - ERROR could not found device to install driver for
  4. Windows fully updated.
  5. Installed latest BIOS F28
  6. Installed HP help support software, ran it , says I don't need any updates.


Can someone help me?

thanks in advance. 


my system:

HP Pavilion dv2815nr Entertainment Notebook PC 



Windows Vista Home Premium 32-bit SP2

CPU: AMD Turion 64 X2 Mobile TL-60 48 °C  Tyler 65nm Technology

RAM: 3.00 GB Single-Channel DDR2 @ 333MHz (5-5-5-15)

Motherboard: Wistron 30D6 (Socket A) 45 °C

Graphics: Generic PnP Monitor (1280x800 60Hz) 128MB GeForce 7150M / nForce 630M (HP) 66 °C

Hard Drives: 244GB SAMSUNG SAMSUNG HM250JI ATA Device (SATA) 49 °C

Optical Drives
 No optical disk drives detected (my cdrw broke so i removed it)

 No audio card detected



 Manufacturer Wistron
 Model 30D6 (Socket A)
 Version F.28
 Chipset Vendor NVIDIA
 Chipset Model nForce 560
 Chipset Revision A2
 Southbridge Vendor NVIDIA
 Southbridge Model nForce 560
 Southbridge Revision A2
 System Temperature 43 °C

   Brand Hewlett-Packard
   Version F.28
   Date 03/02/2011

  PCI Data
    Slot UNKNOWN
     Slot Type UNKNOWN
     Slot Usage Available
     Bus Width 32 bit
     Slot Designation PCMCIA Slot CBUS1
     Slot Number 0

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