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Maintenance & Service Guide
Presario 7900 Series Personal Computers
Models: 7922, 7930, 7935, 7940, 7947, 7950, 7970, 7973, 7985

MSG Index Product Description Troubleshooting Illustrated Parts
Home Removal & Replacement Jumpers & Switches Specifications

Presario 7900 Models with Athlon System Board

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Compaq Presario 7900 Series System Board: External Connectors

Function Description Designator
1 Diskette Drive 34-Pin Header J5
2 Primary IDE Drive 40-Pin header, Key 20 J6
3 Secondary IDE Drive 40-Pin header, Key 20 J7
4 Replacement Battery Battery Holder (CR2032 - battery type) B1
Not numbered CMOS Clear 3-Pin Header J3
5 Button/Light Board 7-Pin Header J1
6 Front I/O connector 30-pin connector J4
7 PCI Slots PCI Slot 1-5 J16, J17, J18,J19, J20
12 AGP Slot AGP Slot J12
13 System Fan Header J11
14 Processor Processor Slot J10
15 CPU Fan Header J9
16 Power Supply 20-Pin ATX Power Header J8
17-19 DIMM Sockets 168-Pin DIMM S1,S2,S3
20 1394 Connector Connector J22
21 Parallel DSUB 25-Pin J25
22 Serial DSUB 9-Pin J25
23 Mouse Miniature 6-Pin 1/2 J24
24 Keyboard Miniature 6-Pin 1/2 J24
25 USB Port Dual USB Connector J23

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