Dell OptiPlex 330 User Manual page 37

21 5 V Red
22 5 V Red
23 5 V Red
24 RTN Black
DC Power Connector P2
Pin Number Signal Name 18-AWG Wire
1 GND Black
2 GND Black
3 +12 VADC Yellow
4 +12 VADC Yellow
DC Power Connectors P3, P5, P8, and P9
Pin Number Signal name 18-AWG Wire
1 +3.3 VDC Orange
2 GND Black
3 +5 VDC Red
4 GND Black
5 +12 VBDC White
DC Power Connector P7
Pin Number Signal Name 22-AWG Wire
1 +5 VDC Red
2 GND Black
3 GND Black
4 +12 VADC Yellow
Memory
You can increase your computer memory by installing memory modules on the system board. Your computer supports DDR2 memory. For information on the
type of memory supported by your computer, see the "Memory" section of the specifications for your computer:
Mini Tower — Mini Tower Specifications
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Desktop — Desktop Computer Specifications
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NOTICE: Do not install ECC or buffered memory modules. Only unbuffered, non-ECC memory is supported.
20 AWG
20 AWG
20 AWG
20 AWG