Asus CROSSHAIR IV EXTREME, User Manual, Page: 33 / 172

2.2.2 Layout contents
Connectors/Jumpers/Switches/Slots Page
1. ATX power connectors (24-pin EATXPWR, 8-pin EATX12V) 2-38
2. AMD
®
AM3 Socket 2-9
3. CPU, chassis, and optional fan connectors (4-pin CPU_FAN;
4-pin PWR_FAN; 4-pin CHA_FAN1–3; 4-pin OPT_FAN1–3)
2-35
4. DDR3 DIMM slots 2-14
5. Go Button 2-42
6. AMD
®
SB850 Serial ATA 6.0 Gb/s connectors (7-pin SATA1–6) [red] 2-32
7. JMicron
®
JMB363 Serial ATA connectors (7-pin SATA_E1) [black] 2-33
8. Thermal sensor cable connectors (2-pin OPT_TEMP1–3) 2-36
9. Clear RTC RAM (3-pin CLRTC_SW) 2-26
10. System panel connector (20-8 pin PANEL) 2-39
11. USB connectors (10-3 pin USB7; 10-1 pin USB89; USB1011) 2-33
12. OC Station connector (8-pin OC_STATION) 2-37
13. Reset switch 2-41
14. Power-on switch 2-41
15. Core Unlocker switch 2-44
16. Turbo Key II switch 2-43
17. IEEE 1394a port connector (10-1 pin IE1394_2) 2-34
18. Digital audio connector (4-1 pin SPDIF_OUT) 2-37
19. Front panel audio connector (10-1 pin AAFP) 2-34
Refer to 2.8 Connectors for more information about rear panel connectors and
internal connectors.
ROG Crosshair IV Formula 2-7