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[Help] Two intel express chipsets show up in device manager.
My laptop is a Vaio VGN-SZ38GP/C.
It was loaded with XP when I bought it, but has been clean installed with Windows 7 without any problems for the past year. I used a graphic driver with a modified inf to install the video card driver (the laptop came with nVidia Geforce Go 7400). All was fine.
Now here's the problem.
Two days ago, when I turned on the laptop, the display went small (it doesn't cover the entire screen). After it entered into Windows, a message pops up: 'new device has been detected', it was then installed etc. The new device turns out to be an Intel Express Chipset. After that, it required me to reboot the system. After the system was rebooted, all seems well, the display once again covered the entire screen.
However, I found out that the laptop is currently not utilizing the video card (it doesn't even shows up under device manager). There's not even a 'standard vga adapter' entry in it. None under display adapters. None under other devices. Couldn't find it.
And turns out the STAMINA-SPEED switch on my laptop isn't working (Vaio SZ has a STAMINA mode that preserves the battery by switching off the video card). I put the switch on SPEED, but the led indicator stays on STAMINA. Windows doesn't even seem to recognize any changes I made in switching between the modes back and forth.
Also, another weird thing right now is that the device manager shows that I have two Intel Express Chipsets when I turned on the 'show hidden devices' option. Both with identical hardware IDs.
PCI\VEN_8086&DEV_27A2&SUBSYS_81E6104D&REV_03
- I've tried to do a system restore to no avail.
- Updated the bios to no avail.
- Look for ways to switch off the onboard video card via bios, but seems like there's no apparent setting for it. Its a Phoenix Technologies'.
- Uninstalled both Intel Express Chipsets and then reboot. The laptop simply turns back to the small screen not covering the entire display.
- Downloaded and installed another 189.79 nVidia driver with modded inf. It says no supported hardware has been detected, even after uninstalling both Intel Expres Chipset drivers.
I didn't make any changes in programs/softwares whatsoever before the problem occurred. Right now I am beginning to think that either a Windows Automatic Update has installed something or the video card has simply died.
Helps and suggestions are greatly appreciated.