finished new pc

[alt123]

hello finished building my computer. i started the system and mainly used the default bios settings but changed the boot order. the installation of windows xp pro went fine. when i got to the desktop i then checked the device manager in the control panel and everything appeared to be working properly. however, when i put in my motherboard cd the system hung and i got a blue screen error stating i should disable cache or shadowing in bios. i couldnt find that in the bios so i just powered off the computer and restarted to try loading the motherboard cd again. this time, all the drivers installed successfully from the cd. I also installed adobe photoshop,cakewalk fruityloops and xp service pack 1 without any problems and i am currently browsing the net just fine. I just would like to know what this cache/shadowing error meant and i also was wondering what programs i coudl dload to test my pc to ensure that my pc is running efficiently. Thanks
System built:
Intel Pentium D 805 Smithfield 533MHz FSB LGA 775 Dual Core,EM64T Processor Model BX80551PE2666FN - Retail

ASUS P5P800-VM Socket T (LGA 775) Intel 865G Micro ATX Intel Motherboard - Retail

LITE-ON CD Burner Black IDE Model SOHR-5239V BK RT - Retail

Antec Solution SLK2650-BQE Black Steel ATX Mid Tower Computer Case 350W Power Supply - Retail

CORSAIR ValueSelect 512MB 184-Pin DDR SDRAM DDR 400 (PC 3200) Unbuffered System Memory Model VS512MB400 - Retail

Seagate Barracuda 7200.7 ST3120827AS 120GB 7200 RPM Serial ATA150 Hard Drive - OEM

[glc]

You should probably update the bios - to run a dual core on an 865 chipset requires the latest to work right.