Hp Z800 Workstation Locks Up and Freezes

This is a SolidWorks only workstation. It is marketed by HP as a Solidworks certified workstation.

This workstation frequently freezes, 1-5 times a day, from day 1. No apparent pattern. The mouse cursor still moves. Most frequently it happens when, if even just a small part or asy is open and you try to open another part. Task manager usually ends up saying SW not responding, yet before that happens you can open Windows explorer and browse to any directory local or on network in an instant. Some times SW just closes. If you look at CPU usage it is under 2%, memory usage is small. This happens whether you work locally or over network.

To add to my confusion HP, Solidworks and Nvidia all list different drivers as certified.

SYSTEM

HP Z800 Workstation FF825AV

Intel Xeon E5530 2.40 8mb/1066 - CPU

XP x64 OS – up to date

NVidia Quadro FX4800 1.5GB PCIe Graphics Card

Graphics Driver 6.14.1.8274 7/2/2009

12GB DDR3-1333 ECC RAM

HP 450GB SAS 15k HDD – Seagate ST3

Broadcom 5761 Gigabit PCIe NIC

Solidworks 2009 x64 SP5.1

No AV – but have checked for malware

Office 2007

HP shipped this unit with this graphics driver:

6.14.1.8274 7/2/2009

Solidwork web site says these are certified drivers:

6.14.1.7883

6.14.1.8267

The NVidia web site has a software partnered page for certified drivers. It lists these drivers as certified:

169.56 (HP Package)

81.67

77.56

SolidworksAdministration