1Power signal connector

2Power connector

3DIMM sockets (slots #1A, #1B, #2A, and #2B from top to bottom)

4CPU1 socket

5CPU2 socket

6Floppy disk drive connector

7Cooling fan connector (Fan 5)

8Cooling fan connector (not used)

9Power connector

10HSBP (B) connector (not used)

11HSBP (A) connector (not used)

12USB connector

13IDE connector (for CD-ROM drive)

14Cooling fan connector (not used)

15Cooling fan connector (Fan 3: option)

16Front panel interface connector

17IDE connector (not used)

18Jumper switch for clearing CMOS/password

19Lithium battery

20Ultra320 (A) connector (for built-in hard disk)

21DAC LED connector

22Serial (COM B) connector

23PCI board slots

(slots PCI #1, PCI #2, PCI #3, PCI #4, PCI #5, and PCI #6 arranged from top to bottom) PCI #1 to #4: 64-bit/100 MHz

PCI #5, #6: 32-bit/33 MHz

24Cooling fan connector (Fan 1)

25Cooling fan connector (Fan 2: option)

26External connection connector

Figure 1-6. System Board

System Overview 1-11

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Image 27
NEC 120Lg manual System Board System Overview