Strange sound disappears on the laptop. Can anyone come across?

Question

Iron

Save the comrades, brought a laptop - I tried everything, I can’t understand what else could be the problem.
ESSENCE: The sound disappears on the laptop, and it’s strange: a movie / YouTube / dvd / music can go on and after half an hour / 5/10/15 minutes the sound disappears, everything just disappears, but the sound scheme of Windows works, moreover, if you restart this film, then everything repeats, i.e. works until the next restart of the movie itself, and any and from any medium and moment.
WHAT WAS TAKEN:
1. Reinstallation of sound drivers both from offsite lenova and from DRPSU
2. Reinstallation of K-Lite codec
3. Reinstallation of the player
4. Reinstallation of ACPI drivers
5. Reinstallation of Windows with all of the above - nothing has changed on a clean system
PATIENT: Lenovo G460e on Windows XP
What else can you think of?
They take doubts about the flight of the sound system (because in this case it would fall off at least before the reboot of the computer, but not before the reboot of the stream), the Google top about sleep mode and energy saving does not help either (because it is not cut off after the same time , and in XP there was still no energy saving, and the maximum performance was set by the driver utilities)
Alas, there is no external card to test yet.

Answer 1

Boot from any live-usb, check there, if the problem persists, take it to the electronics engineers. And why hr? you can freely install w7x86