Solved Computer not recognizing Ethernet cable after new motherboard install

Sublime

New member
So I put a new motherboard in my PC, and soon after my internet stopped working. When I look in the back of my PC, where you plug the ethernet cable in, it is not lit up as it usually is when you plug it in. I know the ethernet cable is good. My modem has all green lights, im posting using the same connection from that modem on my laptop. I think it has something to do with settings because of the new mobo installed. I am not sure though. Tried googling for some solutions with no luck.

Again I tried the ethernet cord in my laptop, and it works great. I get a wireless connection of my modem great also. So it is not the modem/cable. For some reason it is not recognizing that the ethernet cable is plugged in, and won't get connected. It worked perfect before the new mobo was installed.
 

My Computer

OS
Windows 7 64bit
CPU
Intel core 2 duo E8400
Motherboard
Biostar
Memory
4GB
Graphics Card(s)
Nvidia GTX 260
Did you load the new mother board drivers?
 

My Computer

Computer Manufacturer/Model Number
Custom
OS
Windows 7 Pro x64 -- PCLinuxOS KDE4 FullMonty 2011
CPU
i7-875k @ Turbo - 7,6,5,5 - 3.6ghz
Motherboard
Asus P7P55D-E Deluxe
Memory
Corsair CMD8GX3M4A1600C8 8gb
Graphics Card(s)
Asus EAH5850 DirectCU/2DIS/1GD5
Sound Card
On Board
Monitor(s) Displays
Samsung SyncMaster T220 - Panasonic VT30a 50"
Screen Resolution
1680x1050 -
Hard Drives
Corsair Force 3 SSD 120GB x 2 ::
WD VelociRaptor 150GB WD1500HLFS x 2
PSU
Corsair HX-850 Power Supply
Case
Coolmaster HAF 932
Cooling
Corsair H50
Keyboard
Logitech Wireless MK700
Mouse
Logitech Wireless MX620
Internet Speed
Good enough for now
Other Info
Voip. Insanely cheap phone calls.
Do you have the onboard NIC/LAN chip enabled in the BIOS of the new mobo?

Proper drivers installed for that NIC/LAN chip from the manufacturer's site?

Does the NIC/LAN show up in hardware with a yellow exclamation mark as "other", implying no proper driver installed?

As was already suggested... proper chipset and other mobo-specific drivers installed for the mobo, from the generally provider "driver CD"?
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home-built, two systems (1) and (2)
OS
Windows 7 Pro x64 (1), Win7 Pro X64 (2)
CPU
i5-3350p 3.1Ghz/6MB-cache (1); E8400 3.0Ghz/6MB-cache (2)
Motherboard
ASUS P8Z77-V Pro (1); ASUS P5Q3 (2)
Memory
8GB PC3-12800 DDR3 (1); 4GB PC3-10600 DDR3 (2)
Graphics Card(s)
ATI HD7750 (1), (see TV cards); ATI R7 250 (2)
Sound Card
Realtek ALC892 HD Audio (1); Realtek ALC1200 HD Audio (2)
Monitor(s) Displays
Eizo HD2441W LCD, Eizo S2433W (1); Eizo 24" S2433W (2)
Screen Resolution
1920x1200, 1920x1200 (1); 1920x1200 (2)
Hard Drives
(1) 1TB SATA-II (7200RPM), 2x2TB SATA-III (7200RPM), 250GB SATA-III (10000RPM) for OS; 2x2TB external USB 3.0

(2) 320GB SATA-II (7200RPM), 750GB SATA-II (7200RPM), 150GB SATA-II (10000RPM) for OS; 2TB external USB 3.0
PSU
Nesteq ECS-6001 600W (1); Nesteq ECS-5001 500W (2)
Case
Acousti-Case 360 (1) and (2)
Cooling
Noctua NH-U12P SE2 for CPU, 2x120mm case fans (1) and (2)
Keyboard
IBM PS/2 (1) and (2)
Mouse
Logitech MX Revolution wireless (1); Microsoft wired (2)
Internet Speed
100mbps down / 10mbps up
Antivirus
Microsoft Security Essentials; Malwarebyte Anti-Malware Pro
Browser
Firefox
Other Info
Ceton InfiniTV 4-tuner cablecard-enabled TV card as well as Hauppauge HVR-2250 OTA/ATSC 2-tuner TV card in (1), running under Win7 WMC
Reinstalled drivers and its working... thanks
 

My Computer

OS
Windows 7 64bit
CPU
Intel core 2 duo E8400
Motherboard
Biostar
Memory
4GB
Graphics Card(s)
Nvidia GTX 260
Good stuff. :)
 

My Computer

Computer Manufacturer/Model Number
Custom
OS
Windows 7 Pro x64 -- PCLinuxOS KDE4 FullMonty 2011
CPU
i7-875k @ Turbo - 7,6,5,5 - 3.6ghz
Motherboard
Asus P7P55D-E Deluxe
Memory
Corsair CMD8GX3M4A1600C8 8gb
Graphics Card(s)
Asus EAH5850 DirectCU/2DIS/1GD5
Sound Card
On Board
Monitor(s) Displays
Samsung SyncMaster T220 - Panasonic VT30a 50"
Screen Resolution
1680x1050 -
Hard Drives
Corsair Force 3 SSD 120GB x 2 ::
WD VelociRaptor 150GB WD1500HLFS x 2
PSU
Corsair HX-850 Power Supply
Case
Coolmaster HAF 932
Cooling
Corsair H50
Keyboard
Logitech Wireless MK700
Mouse
Logitech Wireless MX620
Internet Speed
Good enough for now
Other Info
Voip. Insanely cheap phone calls.
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