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System Board

Dell™ OptiPlex™ GX260 Service Manual

  System Board Components

  Removing the System Board

  Replacing the System Board

System Board Components

1	floppy drive connector (DSKT)	12	CD drive audio cable connector (CD_IN)
2	internal speaker (SPEAKER)	13	telephony connector (MODEM)
3	battery socket (BATTERY)	14	power connector (12VPOWER)
4	CD/DVD drive connector (IDE2)	15	second serial connector (SER2)
5	hard drive connector (IDE1)	16	microprocessor and heat-sink connector (CPU)
6	front-panel connector (FRONTPANEL)	17	memory module connectors (DIMM A and DIMM B)
7	PCI riser (small mini-tower computer only)	18	microprocessor fan connector (FAN)
8	standby power light (AUX_PWR)	19	power connector (POWER)
9	AGP card connector (AGP)	20	RTC reset jumper (RTCRST)
10	PCI card connectors (PCI1, PCI2, PCI3, and PCI4)	21	password jumper (PSWD)
11	front-panel audio cable connector (FRONTAUDIO)

System Board Jumpers

Jumper	Setting	Description
PSWD (green jumper)	(default)	Password features are enabled. Password features are disabled.
RTCRST		Real-time clock reset. Can be used for troubleshooting purposes.
jumpered   unjumpered

Removing the System Board

CAUTION: Before you remove any component from the system board, see "Precautionary Measures."

NOTE: The system board and metal tray are attached and are removed as one piece.

1. Remove any components that restrict access to the system board.
   
   
2. Disconnect all cables from the system board.
   
   
3. Before you remove the existing system board, visually compare the replacement system board to the existing system board to make sure that you have the correct part.
   
   
4. Pull up on the tab and slide the system board toward the front of the computer, and then lift it up and away.
   
   

Removing the System Board

5. Place the system board that you just removed next to the replacement system board.
   
   

Replacing the System Board

1. Transfer components from the existing system board to the replacement system board.
   
   
2. Remove the memory modules and install them on the replacement board.
   
   

CAUTION: The microprocessor package and heat-sink assembly can get hot. To avoid burns, be sure that the package and assembly have had sufficient time to cool before you touch them.

3. Remove the heat-sink assembly and microprocessor from the existing system board and transfer them to the replacement system board.
   
   
4. Configure the settings of the replacement system board.
   
   
5. Set the jumpers on the replacement system board so it is identical to the one on the existing board.
   
   

NOTE: Some components and connectors on the replacement system board may be in different locations than the corresponding connectors on the existing system board.

6. Orient the replacement board by aligning the notches on the bottom to the tabs on the computer floor.
   
   
7. Slide the board toward the back of the computer until it clicks into place.
   
   
8. Replace any components and cables that you removed from the system board.
   
   

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