Dell Workstation - what can I improve?

Hello.

I'm working on Solidworks 2012.

Spec of my workstation:

  Operating System                              Microsoft Windows XP Professional SP3
                    
 

Motherboard:
  CPU Type                                      DualCore Intel Core 2 Duo E8400, 3000 MHz (9 x 333)
  Motherboard Name                              Dell Precision WorkStation T3400
 
  System Memory                                 3328 MB  (DDR2-667 ECC DDR2 SDRAM)
  DIMM1: Samsung M3 91T2953EZ3-CE6              1 GB DDR2-667
  DIMM2: Samsung M3 91T2953EZ3-CE6              1 GB DDR2-667
  DIMM3: Samsung M3 91T2953EZ3-CE6              1 GB DDR2-667
  DIMM4: Samsung M3 91T2953EZ3-CE6              1 GB DDR2-667
 

Display:
  Video Adapter                                 NVIDIA Quadro FX 3700  (512 MB)
  3D Accelerator                                nVIDIA Quadro FX 3700
  Monitor                                       Dell 2208WFP (Digital)  [22" LCD]

If I buy (i.e.) Windows 7 and replace 4 dimm's (from 4GB to 8GB - will be good result in performance of SolidWorks?

Any tips?

SolidworksGeneral