Acer 6800 Series - Manual (Page 51)

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No. Component No. Component
1 4 Memory slots 2 CPU fan connector
3 CPU socket 4 ATX 12V power connector
5 Front panel audio connector 6 Alternate power connector
7 PCI Express X16 connector 8 2 PCI conventional bus connectors
9 CD in 10 PCI Express connector
11 S/PDIF output connector 12 External COM port connector
13 System fan connector 14 OneButton Recovery connector
15 BIOS 16 Front panel USB connector
17 4 Serial ATA IDE connectors 18 Front panel connector
19 Chassis intrusion connector 20 Clear CMOS jumper
1-2 Normal (default),
2-3 Clear CMOS
21 Lithium battery 22 Diskette drive connector
23 Parallel ATA IDE connector 24 Main power connector