Deskpro EN Series

Configuring an Expansion Board


System Board Desktop

Note: *Board 007998-102 has the P15 connector located near the battery. Board 008123-101 has the P15 connector located near the riser board connector.
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Connectors and Jumpers Desktop

Connectors, Jumpers, and Switches
Item Description Item Description
BT2 External battery J21 PCI connector slot
E50 CMOS J22 PCI combination slot
J1 DIMM 1 J23 PCI combination slot
J2 DIMM2 P8 Fan
J3 DIMM3 P6 Speaker
J40 AGP connector P29 SCSI LED header
J50 Riser board socket P9 NIC Remote Wakeup
P15 Fan (thermal cable) P10 Diskette drive connector
SW1 Switch 1, S1 through 6 P1 Power supply connector
J10 ISA combination slot P7 CD audio connector
J11 ISA combination slot P20 Primary IDE connector
J20 PCI connector slot P21 Secondary IDE connector
    P5 Hood control, power switch, LEDs
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Switch Settings Desktop

S-1 Action
On Disable Password
Off Enable Password
SW1 Settings
Processor Speed (66MHz Speed) S1 S2 S3 S4 S5 * *
233 MHz * OFF OFF ON ON * *
266 MHz * ON ON OFF ON * *
300 MHz * ON OFF OFF ON * *
333 MHz (maximum) * OFF ON OFF ON * *
366 MHz * OFF OFF OFF ON * *
400 MHz * ON ON ON OFF * *
Processor Speed (100 MHz Bus Speed) S1 S2 S3 S4 S5 * *
350 MHz * OFF OFF ON ON * *
400 MHz * ON ON OFF ON * *
450 MHz * ON OFF OFF ON * *
500 MHz * OFF ON OFF ON * *
550MHz * OFF OFF OFF ON * *
600 MHz * ON ON ON OFF    
S-6 Action
On Auxiliary Power Supply on, Main Power Supply on
Off Auxiliary Power Supply on, Main Power Supply off
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System Board (Revised Configuration) Desktop

(Revised Configuration - Revised Configuration refers to all models produced after June 23, 1999.) 
System Board Overview (010127-001)
Connectors and Jumpers
BT2 External battery J2 DIMM2
E50 CMOS J50 Riser board socket
J1 DIMM 1    
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Connectors and Jumpers (Revised Configuration) Desktop

(Revised Configuration - Revised Configuration refers to all models produced after June 23, 1999.) 
Front Side of Desktop Riser Board (Revised Configuration) Rear Side of Desktop Riser Board (Revised Configuration)
Connectors, Jumpers, and Switches
Item Description Item Description
J2 PCI connector slot J7 ISA combination slot
J3 PCI connector slot P6 Speaker
J4 PCI connector slot P8 Fan
J5 PCI connector slot P9 NIC Remote Wakeup
J6 ISA combination slot P29 SCSI LED header
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Switch Settings (Revised Configuration) Desktop

(Revised Configuration - Revised Configuration refers to all models produced after June 23, 1999.) 
As of 1/1/99 all Celeron, Pentium II, and Pentium III units >300 MHz ship with the processor speeds preset. These preset speeds will override any changes to switch settings on the system board. 
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Disabling or Clearing the Power-On and Setup Passwords (Revised Configuration)

(Revised Configuration - Revised Configuration refers to all models produced after June 23, 1999.) 
The computer's configuration (CMOS) may occasionally be corrupted. If it does, it is necessary to clear the CMOS memory using switch SW50. To clear and reset the configuration, perform the following procedure: 
  1. Prepare the computer for disassembly (Section 4.2).
  2. Remove the system unit cover (Section 4.5).
  3. Press the Clear CMOS button located on the system board for at least 5 seconds
  4. Replace the system cover.
  5. Turn the computer on.
  6. Run the Computer Setup utility to reconfigure the system
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System Board Minitower

Note: *Board 007998-102 has the P15 connector located near the battery. Board 008123-101 has the P15 connector located near the riser board connector. 
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Connectors and Jumpers Minitower

Connectors, Jumpers, and Switches
Item Description Item Description
BT2 External battery J21 PCI connector slot
E50 CMOS J22 PCI combination slot
J1 DIMM 1 J23 PCI combination slot
J2 DIMM2 P8 Fan
J3 DIMM3 P6 Speaker
J40 AGP connector P29 SCSI LED header
J50 Riser board socket P9 NIC Remote Wakeup
P15 Fan (thermal cable) P10 Diskette drive connector
SW1 Switch 1, S1 through 6 P1 Power supply connector
J10 ISA combination slot P7 CD audio connector
J11 ISA combination slot P20 Primary IDE connector
J20 PCI connector slot P21 Secondary IDE connector
    P5 Hood control, power switch, LEDs
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This page was updated on June 02, 2002
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