Dell Dimension 4500 - Manual (Page 54)

DC Power Connectors P3, P5, P6, P8, and P9
DC Power Connector P7
IDE Interface Cable Connections for Dell-Installed Drives
Placement of Dell-Installed Cards
Pin Number Signal Name 18-AWG Wire
1 COM Black
2 COM Black
3 +12 VDC Yellow
4 +12 VDC Yellow
Pin Number Signal Name 18-AWG Wire
1 +12 VCD Yellow
2 COM Black
3 COM Black
4 +5 VDC Red
Pin Number Signal Name 22-AWG Wire
1 +5 VCD Red
2 COM Black
3 COM Black
4 +12 VDC Yellow
IDE Channel IDE Connector Location Dell-
Installed
Drive
Primary IDE master End connector on PRI IDE connector cable Hard
drive
Primary IDE slave Middle connector on cable PRI IDE connector Zip drive
Secondary IDE master End connector on cable SEC IDE connector CD or
DVD
drive
Secondary IDE slave Middle connector on SEC IDE connector cable CD-RW
drive