HOME PRODUCTS Motherboards Socket 939 NF4UK8AA-8EKRS
Sold In: Europe, China, North and South America, APAC


- AMD Athlon™ 64 and 64 FX processors, Socket 939
- 2000 MT/s HyperTransport™
- Dual channel DDR400 / DDR333 / DDR 266 DRAM x4 DIMMs, Max 4GB
- 2 PCIe x 1
- 4 Serial ATA II w/ RAID 0, 1, 0+1
- IEEE 1394 (Fire Wire)
- 7.1 channel Audio, AC97 interface (Realtek)
- 8 USB 2.0 ports


Processor Socket 939 for AMD Athlon™ 64 and 64 FX processors
Chipset NVIDIA NF4 Ultra (Single chipset solution)
Front Side Bus Up to 2000 MT/s HyperTransport™
Memory Dual channel DDR400 x4, support up to 4GB
VGA on Die N/A
Expansion Slots 1 x PCIe x16, 2 x PCIe x1 and 4 x PCI slots
IDE ATA133 x 2
Serial ATA(SATA)/RAID Supports 4 Serial ATAII devices, RAID 0, RAID 1, RAID 0+1
Audio Integrated 7.1, Realtek ALC 850 (AC97 interface) - support S/PDIF-out
LAN GbE (integrated GbE MAC + Cicada CIS8201 GbE PHY)
IEEE1394 2; Agere FW322-06 (support 2 ports)
Back Panel I/O Ports 1 x PS/2 Keyboard
1 set 7.1 channel Audio Jack
1 x PS/2 Mouse
1 x Parallel
1 x LAN
1 x COM
4 x USB 2.0
1 x IEEE 1394 (Fire Wire)
1 x Coax S/PDIF out port
Internal I/O Connectors 1 x CD In
1 x 1394a x1
2 x USB 2.0 headers, support 4 ports
1 x S/PDIF
1 x IrDA header
BIOS Features LPC ROM 4M (SST49LF004B and PM49FL004), ACPI 1.0b, APM 1.2, PnP 1.0a, SMBIOS 2.3, USB 2.0, WfM 2.0
Support CD Chipset Drivers, DirectX 9.0, RAID Driver, VGA Driver, USB 2.0 Driver, Audio Driver, Network Driver, Adobe Reader 6.0, SuperUtilities, Norton Internet Security
Standards/Manageability USB2.0, WfM 2.0, DMI 2.0, WOL by PME, LPC 1.1 Interface, PC2001
Special Features Wake on ring, LAN, USB, keyboard & mouse, STR (Suspend-to-Ram), STD (Suspend-to-Disk), SuperRecovery, SuperBoot, SuperBIOS-Protect, SuperSpeed by BIOS, SuperStep, SuperLogo, SuperUpdate by CD Driver, MediaShield, overclocking
Form Factor ATX (12” x 9.6”)


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Tech Support

File Description Version Size Updated Date
NF4UK8AA-8EKRS Disable the system will shut down when chip fan speeds very slow during POST. 49GW1P66 297KB 3/5/2008
NF4UK8AA-8EKRS Patch NB Chipset are burned problems when Chipset fan speed vey slow. 49GW1P65 297KB 1/11/2008
NF4UK8AA-8EKRS 1.Fixed password isn’t unique. 49GW1P61 301K 4/26/2006
NF4UK8AA-8EKRS 1. Fixed intruder function not accord with test SOP. 2. Added Sign On Message "nVIDIA NF4 Series 49GW1P55 101905". 49GW1P55 291K 10/19/2005
File Description Version Size Updated Date
NF4UK8AA-8EKRS NVIDIA chipset package drivers(include Audio and Lan) for 32bit. V1.0 36.4MB 8/9/2010
NF4UK8AA-8EKRS NVIDIA chipset package drivers(include Audio and Lan) for 64bit. V1.0 38.1MB 8/9/2010
NF4UK8AA-8EKRS nTune driver. 11.1M 4/13/2006
File Description Version Size Updated Date
NF4UK8AA-8EKRS For manual V1.1 3.83MB 6/5/2009

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All specifications are subject to change without notice. Products may not be available in all markets.