Vista install error for ACPI, now what

mooseracing

Golden Member
Mar 9, 2006
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Its the BSOD before setup even starts: Stop Message 0x000000A5 but it doesn't say anything about the BIOS not being ACPI compliant. I've upgraded to the latest BIOS from HP , as this is occuring on a:
HP ZT-1000
P4 1.4 M
1GB RAM
40GB HD

Is there any workaround so i can install it?
 

Nothinman

Elite Member
Sep 14, 2001
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The first link when Googling for "STOP 0x000000A5" says in big red letters:

If you are unable to obtain an updated bios or the latest bios supplied by your vendor is not ACPI compliant, you can turn off ACPI mode during text mode setup. To do this, simply press the F7 key when you are prompted to install storage drivers. The system will not notify you that the F7 key was pressed--it will silently disable ACPI and allow you to continue your installation."
 

mooseracing

Golden Member
Mar 9, 2006
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you forgot the rest of your quote of the big red letters. That applys to WinXP or 2000 not in Vista
 

Nothinman

Elite Member
Sep 14, 2001
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I think Vista requires an ACPI compliant system so you're probably screwed in that respect. Searching for "Vista 0x000000A5 site:microsoft.com" gives this:

If you receive this error message when you install Windows Vista, follow these steps:
1. Restart the computer.
2. Roll back the installation to the previous operating system.
3. Contact the computer manufacturer for information about how to obtain and to install a BIOS update.
4. Disconnect any external hardware devices that are connected to the computer. Additionally, remove or disconnect any hardware that the computer manufacturer does not support.
5. Try to upgrade to Windows Vista again. If you receive a "Stop: 0x0000007B" error message during the upgrade process, contact the computer manufacturer. If you can upgrade to Windows Vista, the problem was likely related to hardware or to software that was installed in the previous operating system.
 

mooseracing

Golden Member
Mar 9, 2006
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Yea thats why I updated the BIOS as I thought it might solve the issue. The funny thing is, is that MS Vista Upgrade advisor sees no Hardware conflicts or issues and says Vista would happily install. So much for my luck
 

Nothinman

Elite Member
Sep 14, 2001
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Well IIRC the advisor runs inside of the previous version of Windows so I don't know how well it can check out the BIOS from there.