20
Series 75FRN2: 75FRN2, 75FRN2-L, 75FRN2-R, 75FRN2-RL
nVIDIA
nFORCE2
DIM1
IDE2
IDE1
Li
Battery
Fan3
nVIDIA
nFORCE2
AC'97
Codec
WOL1
1
SPK
RST
Keylock
HDD/LED
IRTX/IRRX
PWR SMI
+
+
-
-
1
PCI1
PCI5
PCI4
PCI3
PCI2
Audio1
14
USB3
1
10
FD1
1
DIM2
PW1
SOCKET 462
RT2
DIM3
1
1
CDIN1
DDR 400/333/266MHz
RTL
ALC650
Fan2
1
Jp1
AGP1
IDE3
BIOS
PDC
20376
PW2
1
Jp2
RT1
JBAT1
1
1
Jp4
SATA1
SATA2
1
Jp5
(nFORCE2 SPP)
MCP
Fan1
LPC I/O
W83627HF
NJP1
1
1
1
Master Dual Channel DIMM slot
Ultra 400
LPT1
COM1
PS/2
Mouse
(on top)
PS/2 Keyboard
(underside)
RJ45
(on top)
USB3
USB2
Line in
(on top)
Line Out
(middle)
Mic
(underside)
USB0
(on top)
USB1
COM2
+12V Power
JAUD1
1
1
Jp7
(underside)
(middle)
ATX Main Power
USB0
(on top)
(underside)
Master Dual-channel Slot DIM3
2-2.3 To Remove a DIMM
Press down the holding latches on both sides of slot to release the
module from the DIMM slot.
2-2.2 Dual Channel DDR DIMM configuration
1. To enable Dual Channel function on this series of mainboard, a DDR
SDRAM module must be first inserted into DIM3, the Master Dual Chan-
nel slot.
2. Next, either DIM1 or DIM2 or both should be inserted with DDR
SDRAM module(s) to activate the Dual Channel function. That is, DIM3
is the Master Dual Channel DIMM slot and at least one more slot is
needed to couple with the Master Dual Channel DIMM slot DIM3.
• Please notice that users should insert totally identical (size and
frequency) DDR module pair into the memory slots.
• DDR DIMM slot has 184 pins and one notch. Insert a DDR SDRAM
vertically into the 184-pin slot with the notch-to-rib matching.