Hello community, hello Intel,
I have an Acer Aspire V15 Nitro (VN7-572G-51X4) laptop without operating system and am trying to get Windows 7 (x64) running.
It has an Intel Core i5-6200U CPU, not sure about the chipset (must be a Skylake-U PCH, but it's hard to get more info).
Well, Acer doesn't offer Win 7 drivers for this laptop (only Win10), nevertheless I've managed to find drivers for almost everything (chipset, IO, AMT etc.)
The only exception is sound/microphone - corresponding 'unknown device' entry in device manager has following hardware IDs:
PCI\VEN_8086&DEV_9D70&SUBSYS_10371025&REV_21
PCI\VEN_8086&DEV_9D70&SUBSYS_10371025
PCI\VEN_8086&DEV_9D70&CC_040100
PCI\VEN_8086&DEV_9D70&CC_0401
If I change the view in device manager to 'by connection', the above device appears under PCI-Bus (bus0, dev31, func3).
There is almost no info on 9D70, the bits I've found point to an 'Intel HD Audio Controller' and/or 'Intel Smart Sound'.
The official Acer driver DVD (for Win10) contains a folder named 'Realtek Audio Driver ALC255' and installs 'Realtek High Definition Audio Driver 6.0.1.7621 x64 Edition' - device still 'unknown', no sound.
I've tried all Realtek HD drivers I could find, official, inofficial... All of them install without any issues, but change nothing.
Manual installation of IntelHDASST (HDAudioBusDrv / IntcAudioBus.sys etc.) doesn't work.
I've also tried many different versions of chipset drivers (10.1.1.9 from DVD up to 10.1.1.13).
My question: What is the above device exactly? Did I miss something / do I have to install something else in order to get it working on Win7?
Thanks in advance!
