ASUS K8U-X Socket 754 ATX vs GIGABYTE K8NP S939 nVIDIA 4 SLI DDR400

Comparison of K8U-X, K8NP S939 nVIDIA 4 SLI DDR400

32 specifications	A ASUS K8U-X Socket 754 ATX Model K8U-X View product	B GIGABYTE K8NP S939 nVIDIA 4 SLI DDR400View product
Processor1 differ
Processor socketDiffers	Socket 754	Socket 939
Processor system buses supportedKnown for one	800 MHz	—Unknown — not stated by the source
Memoryidentical
Number of memory slotsKnown for one	—Unknown — not stated by the source	4
Maximum internal memoryKnown for one	2 GB	—Unknown — not stated by the source
Internal I/Oidentical
USB 2.0 connectorsKnown for one	—Unknown — not stated by the source	3
Number of SATA connectorsKnown for one	—Unknown — not stated by the source	4
S/PDIF out connectorKnown for one	—Unknown — not stated by the source	Yes
CD/AUX audio inKnown for one	—Unknown — not stated by the source	Yes
ATX Power connector (24-pin)Known for one	—Unknown — not stated by the source	Yes
CPU fan connectorKnown for one	—Unknown — not stated by the source	Yes
Number of chassis fan connectorsKnown for one	—Unknown — not stated by the source	3
Number of COM connectorsKnown for one	—Unknown — not stated by the source	1
Number of IEEE1394 connectorsKnown for one	—Unknown — not stated by the source	2
Rear panel I/O portsidentical
Ethernet LAN (RJ-45) portsKnown for one	—Unknown — not stated by the source	1
PS/2 ports quantityKnown for one	—Unknown — not stated by the source	1
Headphone outputsKnown for one	—Unknown — not stated by the source	1
Microphone inKnown for one	—Unknown — not stated by the source	Yes
S/PDIF out portKnown for one	—Unknown — not stated by the source	Yes
Weight & dimensionsidentical
WidthKnown for one	—Unknown — not stated by the source	30.5 mm
DepthKnown for one	—Unknown — not stated by the source	24.4 mm
Other features1 differ
Floppy disk drive connectorKnown for one	—Unknown — not stated by the source	Yes
I/O portsDiffers	Achterpaneel I/O-poorten 1 x Parallel 1 x Serieel 1 x PS/2-toetsenbord 1 x PS/2-muis 1 x SPDIF-out 1 x Audio I/O 4 x USB 2.0 1 x RJ45 Interne I/O-connectoren Inbreukbescherming behuizing 2x USB2.0-connectoren voor 4 additionele poorten Frontpaneel Audioconnector 20-pins ATX / 4-pins ATX 12V voedings	2 x UDMA ATA 133/100/66 Bus Master IDE 2 x PCI-Express X 16 2 x PCI-Express X 1 2 x PCI 4 x Line-out/ 1 x Line-in/ 1 x MIC 1 x LPT
Manageability featuresKnown for one	—Unknown — not stated by the source	NVIDIA SLI multi-GPU NVIDIA Firewall Norton Internet Security Xpress Installation Xpress Recovery 2 Q-Flash @BIOS
Dimensions (WxDxH)Known for one	305 x 178	—Unknown — not stated by the source
Audio outputKnown for one	ADI AD1888, 6-kanaals CODEC	—Unknown — not stated by the source
Storage controllersidentical
RAID levelsKnown for one	JBOD	—Unknown — not stated by the source
Networkidentical
Networking featuresKnown for one	Realtek 8201CL 10/100 Mbps Ethernet LAN	—Unknown — not stated by the source
Expansion slotsidentical
Expansion slotsKnown for one	1 x AGP 8X 4 x PCI	—Unknown — not stated by the source
Packaging contentidentical
Bundled softwareKnown for one	Device drivers ASUS PC Probe Antivirus (OEM-versie) ASUS LiveUpdate Utility	—Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.