WiFi card replacement in ASUS N550JV laptop.Which cable colour i need to connect it to Main post ?

I have an ASUS N550JV-CN163D notebook with Qualcomm Atheros AR9485WB-EG wifi card inside and i wish to replace it with Intel AC 7260 card .

The questions is : the Atheros AR9485WB-EG card have "Main" and "AUX" plot .

The Intel AC 7260 have : "1" and "2" plot .


So, the white antenna cable must to connect it to : "1" or "2" plot ?

1.In this blog, it show it the ASUS N550JV wifi card it have : black cable to : "Main"
mmp669-All About Gadget: ASUS N550JV Entertainment Laptop Frequently Asked Questions
http://3.bp.blogspot.com/-c96h18cASXs/UsLPcGDV9RI/AAAAAAAAAlc/MFSnIEYVZZE/s1600/kj4m.jpg


2.This guy it say, he saw it in every laptop the white cable must to be to : "Main"
Fix for Lenovo G580 WiFi Issues on Windows 8 - James Croft

3.In this wifi install tutorial it say , doesn't matter which colour cable where you connect it :
HOW TO INSTALL A NEW WIRELESS WIFI PCI CARD IN A LAPTOP | eBay

So, finally, if the Intel AC 7260 wifi card will have : " 1" and " 2" plot , which colour of antenna cable must to connect it to plot " 1" ?

White or black ? Or doesn't matter ?

Because i saw it this 3 cases : black , white, and doesn't matter !


Anyone can explain us exactly how to do this ? If doesn't matter, why they have choose it oposite colours for antenna cable ?
When something doesn't matter, then will choose the same colour for cables .

But when you need to be carefully with connection, they choose oposite colours : black and white .


The same thing with car battery cables : red and black . The red colour it's : Positive and Black it's always the Ground ( Negative ) .


In this case, wifi card from laptops, what's the right connection ? What's the rule ?


What colour cable i need to connect it to post "1" from Intel AC 7260 wifi card ? In case at my Atheros AR9485WB-EG card, the black cable it's connected to : "Main" , where i need it to connect it to Intel AC 7260 card ?

Black to plot " 1" or to plot " 2" ?

http://www.wireless-home-network-made-easy.com/wifi-module.html

http://h30499.www3.hp.com/t5/Notebo...ns-on-NX9000/m-p/352529/highlight/true#M54783

So, what's the right decision ?

Black to post "1" or to post "2" ? Who have right ? How is correct ?

 

It doesn't matter. Antennas are identical. I've been saying this for years but to put your money where my mouth is I actually tested it when I upgraded (if it can even be called that) to 7260 last month. These is no difference.

The reason why cables are different colors is very simple it helps when assembling and disassembling the notebook.

 

http://forum.notebookreview.com/networking-wireless/716325-intel-7260-a-16.html#post9352130

 

As I said, there is no physical difference between them. If you had only one antennas a you would connect it to MAIN but with two identical antennas both placed in the screen bezel, no difference at all.

 

Is there an electrical difference? Is one antennae grounded (for example)?

There must be a reason, I would think? And I'm sure I've read where the connections were backwards and putting them properly fixed an issue of flakey wireless performance too.

 

Flaky performance might be more due to not having them connected properly than different antennae. No difference. They are completely identical other than color of the wire. They are both in bezel. It will perform exactly the same...

Sent from my GT-I9300 using Tapatalk

 

do you guys have any background on electrical & communications engineering perhaps? sorry for the doubt.

 

No background, just been my hobby since forever. I like to know how my stuff works how it's put together and how/if possible to fix it. Have taken apart and put together plenty of laptops/phones etc. To know symptoms and where to look for fixes essentially the guy friends call to save 50£+ on electronics repairs.

Sent from my GT-I9300 using Tapatalk

 

Just out of curiousity:
You replaced the Atheros AR9485WB-EG wifi card with Intel AC 7260 card .
The Atheros only supports 2.4ghz, the AC 7260, also 5ghz.
Does it matter for the antenna's built in the laptop? If you want to exchange your WIFI antenna's on your router these have to be capable for 5ghz as well if your route supports that. is this for laptop antenna's as well?

That spreeds do you get from the AC 7260 card?

I am about to buy an ASUS N750, and the only thing keeping me now is the 2.4ghz wifi, I want better speed, 5ghz and AC (since my router supports that!)

 

well considering i upgraded my old old asus eee 1000 to a 5ghz card and it works fine, i see no worry... i got a 3rd antenna from a nintendo ds lite connected to my intel 6300... no problems at all. they are pretty much all identical as far as i can tell, minus the varieties in size.

 

Each antenna is for it's own data stream so it should not make a difference, your wireless signal does not disappear if you rotate your notebook 180 degrees does it?

I have a BEng in electrical and electronic engineering from Edinburgh university if it makes you feel any better lol. My dissertation was on creating a compact high range (-30V to +30V) multi channel voltage controller for an interference pattern based electronically controlled directional mobile phone antenna.



As pointed out though in your case you could just swap the cables and test yourself.