Hello all. I hope someone can shed some light on my issue. I have a rather old HP 6530b, which has suddenly begun to play audio at a higher pitch. I am sure this is a hardware issue as it had this characteristic with Windows 10 and the same when I changed over to Ubuntu. I have done the normal things, removing the RAM and re-seating, checking the fan is clean etc. I even reset the BIOS but nothing has worked. I should point out that when this happens, I generally lose my webcam and use of the usb's, which makes me think this is an internal power issue. I not brilliantly technical so your ideas...

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Hello to all of you and thank you for allowing me to be part of this amazing forum. I like to buy second hand pc hardware, get it working again and pass it on to those who perhaps can't afford to buy. It saves it going to landfill. I am not proficient by any means but I am more than willing to learn and I can appreciate, immediately, the wealth of talent that exists on these forums. Thank you, again.