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I was able to get Windows 8.0 Pro with Media Center (64 bit) to install on my Dell XPS 400 (with 2.8GHz Pentium D processor and A07 BIOS), but I was unable to perform the Windows 8.1 upgrade. The 8.1 upgrade failed due to CPU limitations, i.e., the CPU did not support at least one of the required CPU functions, PAE, NX, SSE2 plus LAHF-SAHF, CX16 and PREFETCHW. As I understand it, the Pentium D does not support PREFETCHW, so the 8.1 upgrade is a non-starter. The only way around this issue is to go back to 32 bit Win 8 Pro.Then the upgrade to Win 8.1 Pro (32 bit) is supposed to work. I am not willing to go through all of these machinations, so I am sticking with Win 8 Pro 64 bit.
xpsconfigure
34 Posts
951
0
Posted January 15th, 2013 00:00
hi daynash,
if you go on ebay you can get a pentium d 960 3.6ghz processor very cheap $20 to 70 and it has execute disable bit. also it will have a big difference in performance. instal in 10 minutes very simple. i have the exact same system..!!!!!
In place upgrade requires AT LEAST VISTA SP1. Otherwise the WIN8 upgrade is a Scorched earth install.
There are no WIN8 Drivers and never will be which means you may need to install drivers in VISTA SP2 compatability mode.
There are no 32 bit to 64 bit upgrades of any kind any version.You can upgrade to Windows 8 Pro and keep Windows settings, personal files, and applications from the following Windows operating system editions:
- Windows 7 Starter
- Windows 7 Home Basic
- Windows 7 Home Premium
- Windows 7 Professional
- Windows 7 Ultimate
Installation paths to Windows 8 Keep Windows settings, personal files, and applications Keep Windows settings and personal files (data and system settings) Keep personal files only (data only) Keep nothing Windows XP (Service Pack 3 or later)
No
No
Yes
Yes
Windows Vista®
No
No
Yes
Yes
Windows Vista with SP1
No
Yes
Yes
Yes
Cross-architecture installation (32-bit to 64-bit) Windows Vista with SP1 or later
No
No
No
No
Cross-language Windows Vista with SP1 or later
No
No
Yes
Yes
Windows 7
Yes
No
Yes
Yes
Cross-architecture installation (32-bit to 64-bit) Windows 7
No
No
No
No
Cross-language Windows 7
No
No
Yes
Yes
Windows 8
Yes
No
Yes
Yes
Cross-architecture installation (32-bit to 64-bit) Windows 8
No
No
No
No
Cross-language Windows 8
No
No
Yes
Yes
- Windows 7 Starter

speedstep
11 Legend
•
46969 Posts
951
1
Posted January 14th, 2013 20:00
It works but it is NOT supported for windows 8.
If your CPU does not have Execute Disable Bit Security option in bios it will not install.
Not all processors have this feature.
All Pentium D Models seem to have the NX bit.
So the latest bios would be recommended BEFORE the upgrade.
VISTA will have issues before SP2
SP1 is required before SP2
Full install of SP1 and SP2 is recommended.
Drivers for XPS 400Dimension 9150
BIOS - BIOS
Dell Dimension DXP051 A07 System BIOS
Audio - Driver
Sigmatel STAC92XX C-Major HD Audio Driver
Windows Vista 64-bit
Chipset - Driver
Software support for Intel Chipsets.
Windows Vista 32-bit
View the full details here
Click here for all drivers (including historical drivers)