Technical Features	nForce3 150	nForce3 250	nForce3 250Gb	nForce3 Ultra
Integrated Ethernet MAC	100Mbps	100Mbps	1000Mbps	1000Mbps
Downstream Bus Width	16-bit	16-bit	16-bit	16-bit
Upstream Bus Width	8-bit	16-bit	16-bit	16-bit
HyperTransport Clock Speed	600MHz	800MHz	800MHz	1GHz
Total HyperTransport Bandwidth	3.6GB/s	6.4GB/s	6.4GB/s	8.0GB/s
NVIDIA Firewall Technology	No	No	Yes	Yes
High Performance Networking Features	No	No	Yes	Yes

Specification

GA-K8NS-939

nForce3 Ultra chipset

Processor

Socket 939 for AMD Athlon64/ 64 FX

Chipset

NVIDIA nForce3 Ultra Platform Processor Super I/O: ITE IT8712F chip Integrated peripherials   - Marvell 8001 Gigabit Ethernet controller   - Realtek ALC850 Audio AC'97 Codec

Memory

Type: Dual channel DDR400/ 333/ 266 -184pin Max capacity: Up to 4GB by 4 DIMM slots

Internal I/O Connectors

2 x Serial ATA connector 2 x UDMA ATA 133/100/66 Bus Master IDE connectors 1 x FDD connector 2 x USB 2.0/1.1 connectors (supports 4 ports) 3 x cooling fan pin headers CD in

Expansion Slots

1 x AGP slot (8x/4x-AGP 3.0 compliant), supports 1.5v display card only 5 x PCI slots (PCI 2.3 compliant)

Rear Panel I/O

PS/2 Keyboard / Mouse 4 x USB 2.0/1.1 ports 1 x RJ45 ports 2 x COM ports 1 x LPT Audio (1 x Line-in / 1 x Line-out / 1 x Mic) connector

CPU/AGP/DIMM setting

CPU FSB / Multiplier / Vcore Voltage adjustable via BIOS AGP Voltage / Clock adjustable via BIOS DIMM Voltage / Clock adjustable via BIOS

Power

ATX power connector and ATX 12V connector Power-off by Windows 98/ Me/ 2000/ XP shut down and switch

Form Factor

ATX form factor 30.5 x 24.4 cm

H/W Monitoring

System health status auto-detect and report by BIOS Hardware detecting and reporting for case open, CPU voltage, and fan speed

BIOS

2M bit flash ROM, Phoenix BIOS

Other Features

XpressTM Installation XpressTM Recovery Q-FlashTM @BIOSTM