my pc 4,dualcore with leopard 10.5.7

[rock4u]

 Chipset Model:   Graphics by NVIDIA
  Type:   Display
  Bus:   PCIe
  PCIe Lane Width:   x16
  VRAM (Total):   256 MB
  Vendor:   NVIDIA (0x10de)
  Device ID:   0x0601
  Revision ID:   0x00a2
  ROM Revision:   NVinject 0.2.1
  Displays:
X193W:
  Resolution:   1440 x 900 @ 60 Hz
  Depth:   32-Bit Color
  Core Image:   Software
  Main Display:   Yes
  Mirror:   Off
  Online:   Yes
  Quartz Extreme:   Not Supported
Display Connector:
  Status:   No Display Connected

 ECC:   Disabled

BANK0/DIMM0:

  Size:   2 GB
  Type:   DDR2 SDRAM
  Speed:   667 MHz
  Status:   OK
  Manufacturer:   Apple Inc.
  Part Number:   ABCDEFGHIJ
  Serial Number:   1234567890

BANK1/DIMM1:

  Size:   Empty
  Type:   Empty
  Speed:   Empty
  Status:   Empty
  Manufacturer:   Empty
  Part Number:   Empty
  Serial Number:   Empty

BANK2/DIMM2:

  Size:   1 GB
  Type:   DDR2 SDRAM
  Speed:   667 MHz
  Status:   OK
  Manufacturer:   Apple Inc.
  Part Number:   ABCDEFGHIJ
  Serial Number:   1234567890

BANK3/DIMM3:

  Size:   1 GB
  Type:   DDR2 SDRAM
  Speed:   667 MHz
  Status:   OK
  Manufacturer:   Apple Inc.
  Part Number:   ABCDEFGHIJ
  Serial Number:   1234567890  Vendor:   Unknown
  Product:   AHCI Standard Controller
  Speed:   3 Gigabit
  Description:   AHCI Version 1.10 Supported

WDC WD1600AAJS-00PSA0:

  Capacity:   149.05 GB
  Model:   WDC WD1600AAJS-00PSA0
  Revision:   05.06H05
  Serial Number:   WD-WCAP93908662
  Native Command Queuing:   Yes
  Queue Depth:   32
  Removable Media:   Yes
  Detachable Drive:   No
  BSD Name:   disk1
  Mac OS 9 Drivers:   No
  Partition Map Type:   MBR (Master Boot Record)
  S.M.A.R.T. status:   Verified
  Volumes:
mac:
  Capacity:   74.65 GB
  Available:   15.67 GB
  Writable:   Yes
  File System:   Journaled HFS+
  BSD Name:   disk1s1
  Mount Point:   /