ECS 661GX-M2 V5, Manual, Page: 12 / 66

6
Motherboard User’s Guide
ITEM LABEL COMPONENTS
1 ATX1 Standard 4-Pin ATX Pow er connector
2 CPU Socket Socket-478 for Pentium 4 CPUs
3 IR1 Infrared header
4 CPUFAN CPU Fan connector(3PIN)
5 DDR1/2 184-pin DDR SDRAM sockets
6 FLOPPY Floppy Disk Drive connector
7 ATXPW1 Standard 20-Pin ATX Pow er connector
8 IDE1 Primary IDE connector
9 IDE2 Sceondary IDE connector
10 JP3 Clear CMOS jumper
11 SW1 Front Panel Sw itch/LED header
12 SPK1 Speaker header
13 JUSB1/2 Front Panel USB headers
14 CHSFAN System Fan connector
15 CNR1 CNR slot
Motherboard Components
1
2
3
4
5
6
7
8
9
10
11
12 13 14 15
16
17
18
19
IO Ports