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Inside View of Your Computer: Dell Dimension 4700C Service Manual
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Inside View of Your Computer
Dell™ Dimension™ 4700C Service Manual
 Internal System Board Components
Power Supply DC Connector Pin Assignments
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CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. |
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CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover. |
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NOTICE: Be careful when opening the computer cover to ensure that you do not inadvertently disconnect cables from the system board. |
Internal System Board Components
Power Supply DC Connector Pin Assignments
DC Power Connector P1
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Pin Number
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Signal name
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18-AWG Wire
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1
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+3.3 VDC
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Orange
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2
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+3.3 VDC
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Orange
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3
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GND
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Black
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4
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+5 VDC
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Red
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5
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GND
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Black
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6
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+5 VDC
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Red
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7
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GND
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Black
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8
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POK
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Gray
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9
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+5 VSB
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Purple
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10
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+12 VDC
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Yellow
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11
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+3.3 VDC*
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Orange
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12
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–12 VDC
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Blue
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13
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GND
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Black
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14
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PS ON
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Green
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15
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GND
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Black
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16
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GND
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Black
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17
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GND
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Black
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18
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+5 VDC
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N/C
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19
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+5 VDC
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Red
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20
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+5 VDC
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Red
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*Sense connector.
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DC Power Connector P2
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Pin Number
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Signal Name
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18-AWG Wire
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1
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GND
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Black
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2
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GND
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Black
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3
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+12 VDC
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Yellow
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4
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+12 VDC
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Yellow
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DC Power Connector P3
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Pin Number
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Signal Name
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18-AWG Wire
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1
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+3.3 VDC
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Orange
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2
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GND
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Black
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3
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+5 VDC
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Red
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4
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GND
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Black
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5
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+12 VDC
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Yellow
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DC Power Connectors P4
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Pin Number
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Signal Name
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22-AWG Wire
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1
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+5 VCD
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Red
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2
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GND
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Black
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3
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GND
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Black
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4
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+12 VDC
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Yellow
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