Nvidia 680I LT SLI - Manual (Page 12)

Mainboard nForce 680i SLI/
Mainboard nForce 680i LT SLI
8
FAN Headers: CPU FAN, NFORCE FAN
There are several fan headers available for cooling fans on the mainboard. Here describes the
two important ones only. The cooling fans play an important role in maintaining ambient
temperatures in your system. The CPUFAN header is attached with a CPU cooling fan. The
NFORCE FAN header is attached with the nForce SPP fan.
Pin Assignment
1 Control
2 Sense
3 PWR
1
CPU FAN
4 GND
Pin Assignment
1 Sense
2 +12V 1
NFORCE FAN
3 GND
Memory Installation: DIMM0/1/2/3
The nForce 680i SLI/ nForce 680i LT SLI mainboards provide four DIMM (Dual In-Line
Memory Modules) sockets which allow you to install 240-pin, unbuffered non-ECC, DDRII 800/
667/ 533 SDRAMs. They also support Dual Channel Technology and allow you to install a
total memory capacity of 8 GB.
DIMM on the nForce 680i SLI
Attention
It is recommended that to install memories which are identical
specifications (same timing specifications and same DDR II
speed) to achieve the best effects. It may cause the failure of
power-on or lower memory speed if installing different type,
SPD (series presence detects) memories.