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Motherboard Specifications, SF2/661FX (Snapper)

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Motherboard specifications table

Form factorMicro ATX
Processor socket type478
Processor front side bus frequency400/533/800 MHz
Maximum approved processor
  • Intel Pentium 4 HT
  • Celeron "Prescott" and "Northwood"
Chipset "North Bridge"SiS661fx
Chipset "South Bridge"SiS964
Memory typePC2700/PC3200 DDR
Memory sockets2 DDR DIMM (184-pin) sockets
Maximum memory1 GB (2 x 512 MB DDR-DIMMS)
SATA connectorsNone
GraphicsDown
Graphics connector (AGP)1 AGP 8X
AudioIntegrated AC97 v2.2 Audio
AC'97 CODEC deviceRealtek ALC650
Audio jacks (Legend below )M, LI, LO
Ethernet 10/100 LAN supplierRealTek 8100C 10/100
Ethernet configurationIntegrated, Down
IEEE 1394 Front/Back options1F + 1B
IDE UDMA modesATA-100
Expansion slots (AGP/PCI)1 AGP, 3PCI, 1 PCI Expansion
USB ports4
Serial, parallel, floppy, PS2 keyboard and mouse1S, 1P, 1F, PS2 K+M
Available manufacturing options (Legend below )GLE6
Manufacturing options Legend
LegendMeaning
88-Channel audio
AAudio integrated on motherboard
CExternal L2 cache on motherboard
E1394 on motherboard
GGraphics integrated on motherboard or in chipset
LLAN on motherboard (Ethernet) P - PCMCIA slot
LILine In
LOLine out
MMicrophone
M/GMidi/Game
SS3 power management support
S/OSpeaker
TTV-out on motherboard
UGraphics card (Non integrated on motherboard)
WMicrosoft Windows XP hardware compliant

Motherboard layout and photos

Figure 1: Layout
Figure 2: Photo
Figure 3: View of back panel connectors
1 - PS/2 mouse
2 - Parallel port
3 - IEEE 1394 connector
4 - RJ-45 connector
5 - Line in jack
6 - Line out jack
7 - Microphone jack
8 - USB 2.0 connectors
9 - USB 2.0 connectors
10 - VGA connector
11 - Serial connector
12 - PS/2 Keyboard

Clearing the CMOS settings

The JP1 jumper allows you to clear the Real Time Clock (RTC) in CMOS. It also allows clearing of date, time, and system setup parameter memories in CMOS, by erasing the RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, including system setup information.
CAUTION: Do not change any jumper setting while the computer is on. Damage to the motherboard can result.
To clear password set jumper JP3 to pins 2-3.

Clearing the BIOS password

The BIOS password protects the BIOS from undesired changes. If password checking is enabled, and you need to enable it, use the following steps:
To clear password set jumper JP1 to pins 2-3.