Windows 8 and 8.1 Forums


Downgrade 8 to 7 on Acer Aspire AXC-603G-UW31 I Need Help!

  1. #91


    Posts : 18
    Winodws


    The drivers came from this link i think XC603 inc Win7 Drivers.zip and this is the Reseller links Intel Core Duo | Desktop PCs - Ebuyer | Ebuyer.com

    I can confirm that i am not having HDMI audio problem with the old A4L bios, running WMC on connected TV or buy the connected Echos. I did have a problem with the USB 3 port drivers.
    Once i run the USB 3 driver setup program the USB ports would stop working (No Power) just after post when USB 3 support is enabled in BIOS. I had to uninstall the drivers and then the device showed up as unknown. I right click on the unknown device and say upgrade driver and point it to the directory of the USB 3 drivers that i just uninstalled and it finds the driver and installs.

    THe usb 3 port now works and all the other ports still work after post when USB 3 support is enabled in BIOS. I have a AXC-603G-UW30

    EDIT#2: I had USB drivers loaded as per above, but after a month the USB 3 HDD attached to the USB 3 port started running slow, 30MB writes. After looking into it, i found i had both USB 2 and USB 3 Root Hubs listed in device manager and the Mass storage device was listed under a USB 2 Hub even though it was plugged into the USB 3 port. So i had to install the USB drivers by running the setup program for the drivers to correct this, then only the USB 3 root hub was listed in device manager and all port were under it. It installs some port switcher software that don't get installed when pointing the device to the driver files like i did above. So now everything is working good again and no issues at boot up with USB 3 mode enabled.
    Last edited by Rainey222; 19 Oct 2014 at 15:28.

      My System SpecsSystem Spec

  2. #92


    Posts : 12
    Windows 8.1


    Thanks. Those drivers still come from someone's personal cloud storage. I was hoping someone could tell us what Acer page those originally came from. It must be from some similar model number, I just don't know which one. I'm sure that person won't leave those drivers up there forever.

    The trick I found with the USB3 driver is it needs permission to load at every boot. Just make sure you check the "don't ask again" box for it to load automatically.

    BTW, this is the latest Intel Video/Audio driver I've come across:
    https://downloadcenter.intel.com/Det...&DwnldID=23885
      My System SpecsSystem Spec

  3. #93


    Posts : 3
    Windows 8.1 x64


    I wonder what the difference is between the BIOS versions P11.B2 and P11-B0L (which also supports CSM).

    I must say, Acer creates a lot of confusion with the naming convention and availability of their BIOS files.

    The Acer Aspire XC-603 I purchased in July 2014 came with P11-A1L originally. From what I've read in other forums, the 'L' on the end is for 'Linux' and these BIOS versions with 'L' on the end are required for installing any OS other than Windows 8. Up until a few days ago, the only BIOS offered for download from the Acer support site for this system was P11-B0. When trying to load that BIOS, I'd just get an error saying it didn't match up with the existing BIOS and therefore it wouldn't let me proceed with the update.

    Eventually, by searching around, I eventually found an 'L' version of that BIOS ( P11-B0L ) that somebody in anther forum linked to. I tried upgrading to that one and it worked fine. Although I am running Windows 8, I have tried booting from various boot CDs based on Linux, as well as a WinPE boot CD based on Windows 7. All appears good. The BIOS screens for P11-B0L do have the CSM options, just like P11-A1L that I was using before.

    So now we have the new P11.B2 that's just been made available for download by Acer. I'm reluctant to try it out because of the lack of an 'L' on the end, and I'm confused why this new version was necessary or what the actual difference is compared to P11-B0L. Does anyone know?
      My System SpecsSystem Spec

  4. #94


    Posts : 12
    Windows 8.1


    Quote Originally Posted by eldrin View Post
    I wonder what the difference is between the BIOS versions P11.B2 and P11-B0L (which also supports CSM).

    I must say, Acer creates a lot of confusion with the naming convention and availability of their BIOS files.

    The Acer Aspire XC-603 I purchased in July 2014 came with P11-A1L originally. From what I've read in other forums, the 'L' on the end is for 'Linux' and these BIOS versions with 'L' on the end are required for installing any OS other than Windows 8. Up until a few days ago, the only BIOS offered for download from the Acer support site for this system was P11-B0. When trying to load that BIOS, I'd just get an error saying it didn't match up with the existing BIOS and therefore it wouldn't let me proceed with the update.

    Eventually, by searching around, I eventually found an 'L' version of that BIOS ( P11-B0L ) that somebody in anther forum linked to. I tried upgrading to that one and it worked fine. Although I am running Windows 8, I have tried booting from various boot CDs based on Linux, as well as a WinPE boot CD based on Windows 7. All appears good. The BIOS screens for P11-B0L do have the CSM options, just like P11-A1L that I was using before.

    So now we have the new P11.B2 that's just been made available for download by Acer. I'm reluctant to try it out because of the lack of an 'L' on the end, and I'm confused why this new version was necessary or what the actual difference is compared to P11-B0L. Does anyone know?
    "L" is indeed for Linux. It was necessary for Win 7 because it was the only version we could find that had CSM options (required for any non-Win8 OS), until the latest B2.

    As I said before, I'm running the B2 BIOS right now on Win 8.1, and it does have the same exact CSM options as the "L" version, and they work. What I haven't tried yet is booting to a different OS. Once we have proof that works, we won't be stuck running old firmwares made for Linux.
      My System SpecsSystem Spec

  5. #95


    Posts : 3
    Windows 8.1 x64


    Quote Originally Posted by mdavej View Post
    "L" is indeed for Linux. It was necessary for Win 7 because it was the only version we could find that had CSM options (required for any non-Win8 OS), until the latest B2.

    As I said before, I'm running the B2 BIOS right now on Win 8.1, and it does have the same exact CSM options as the "L" version, and they work. What I haven't tried yet is booting to a different OS. Once we have proof that works, we won't be stuck running old firmwares made for Linux.
    Thanks for clarifying. Considering I couldn't upgrade from an L to non-L release earlier (from P11-A1L to P11-B0), will I be able to do that now with the latest release (i.e. upgrade from the current version I'm running, P11-B0L, to P11-B2)?

    And in theory then, P11-B2 supersedes all previous versions, includes all their functionality, and should provide compatibility with all operating systems (Win 7, Win 8, Linux)?
      My System SpecsSystem Spec

  6. #96


    Posts : 18
    Winodws


    You just have to add the /x switch to the command line when flashing the bios to force a flash to get the P11-B02 to over write the L version already loaded.

    Example afuwinx64.exe Bios.rom /x /P /B /N /R /L
      My System SpecsSystem Spec

  7. #97


    Posts : 3
    Windows 8.1 x64


    Thanks for the tip Rainey222, that should prove very useful if I decide to upgrade to P11-B2. Since it's not clear what the advantage will be over P11-B0L that's currently loaded, I'll wait a little while before doing so, until we know from the experience of others whether P11-B2 is a good release or not, and whether it has good compatibility across a variety of operating systems.
      My System SpecsSystem Spec

  8. #98


    Posts : 2
    Win 8.1

    No "Launch CSM" on XC-603G Settings


    I have an Acer Aspire XC-603G running Win 8.1 and BIOS P11-B0

    The BIOS/Setup shows me no listing "Launch CSM"

    The rest of your post is spot on.

    I need to boot from CD/DVD and/or USB drive. This is the only thing in your prescription that I can't try.

    I am able to boot from the CD and USB on my Win 7 box that the Win 8.1 box ignores. I believe that this means that the boot media is not an issue.

    Any help?

    Quote Originally Posted by theog View Post
    On some Acer, Gateway, P. Bell, Windows 7 x64 will not install in UEFI mode.

    Windows 8 Desktops - How to Disable Secure Boot - YouTube



    Enabling the boot device menu

    Quote Originally Posted by Acer
    On most Acer systems, you can use the F12 key on boot to select the drive or network from which loading the operating system. In case the F12 option does not work, you may need to enable this function.

    SOLUTION

    Enabling the F12 function:

    1.Power on the system. As soon as the first logo screen appears, immediately press the F2 key, or the DEL key if you have a desktop, to enter the BIOS.
    2.Press the right arrow key to select Main.
    3.Use the arrow keys to navigate to F12 Boot Menu, and press ENTER.
    4.Select Enabled, and press ENTER.
    5.Press the F10 key to save changes and restart the system.

    How to Enable or Disable Secure Boot

    Quote Originally Posted by Acer
    This article only applies to: Windows 8 Desktops

    Bootable media from previous versions of Windows may not be recognized in Windows 8. You can change the Secure Boot setting and it should recognize the bootable device.

    Use the following steps to change Secure Boot:

    1.Completely shut down your computer.
    2.Power on the system. As soon as the first logo screen appears, immediately press Delete to enter the BIOS.
    3.Use the right arrow key to select Authentication.
    4.With Secure Boot highlighted, press Enter and then the down arrow to select Disabled.
    5.Use the right arrow key to select Boot Options.
    6.With Launch CSM highlighted, press Enter and use the down arrow to select Always.
    7.Press Enter.
    8.Press the F10 key to save changes and restart the system

    ACER Related Videos.

    Windows 8 - Access to Uefi Firmware Settings - Option - YouTube
    Iconia W700 - How to Enter the BIOS - YouTube
    Windows 8 Desktops - How to Disable Secure Boot - YouTube
      My System SpecsSystem Spec

  9. #99


    Posts : 12
    Windows 8.1


    As we've been discussing the past several posts, the latest B2 version DOES have Launch CSM. My 8.1 box runs fine on B2.
      My System SpecsSystem Spec

  10. #100


    Posts : 2
    Win 8.1


    I have d/led B2 but have not had time to install yet...

    Quote Originally Posted by mdavej View Post
    As we've been discussing the past several posts, the latest B2 version DOES have Launch CSM. My 8.1 box runs fine on B2.
      My System SpecsSystem Spec

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Downgrade 8 to 7 on Acer Aspire AXC-603G-UW31 I Need Help!

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