I have an nvidia geforce 7300GS and my older 6150LE is randomly becoming the primary driver. I checked in the bios and it says the primary is the PCI-E Slot.
BIOS
OS Name Microsoft Windows XP Home Edition
Version 5.1.2600 Service Pack 2 Build 2600
OS Manufacturer Microsoft Corporation
System Name ERIK
System Manufacturer Compaq Presario 061
System Model EX318AA-ABA SR1920NX NA630
System Type X86-based PC
Processor x86 Family 15 Model 63 Stepping 2 AuthenticAMD ~2204 Mhz
BIOS Version/Date Phoenix Technologies, LTD 3.11, 9/19/2006
SMBIOS Version 2.4
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = “5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)”
User Name ERIK\Compaq_Owner
Time Zone Pacific Standard Time
Total Physical Memory 1,536.00 MB
Available Physical Memory 877.10 MB
Total Virtual Memory 2.00 GB
Available Virtual Memory 1.96 GB
Page File Space 3.29 GB
Page File C:\pagefile.sys