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[ttmcmurry]

I'll throw in my 2¢...

My entire company is wired up with cat 5e to Dell PowerConnect 6248 Gigabit (1000TX) switches.  We're able to get 1000 Full Duplex as far away as 750 feet, around flourescent lighting, air conditioners, and other data/electric/phone bundles just fine.  Did I mention this all works in a crowded building in midtown NYC?

There are some connections that are running half-duplex at the periphery of the building.  Point is 5e works just fine with gigabit.   

Trav

[v_lestat]

i never said it doesnt work with gigabit but your not getting full gigabit with it, i guarentee you,, 100% guarentee that your not.. its I M P O S S I B L E to get full gigabit with cat5e,, simply impossible.
its only rated and capable of 400mb.
anything over that the crosstalk and interference becomes too great.

this is my business i make and sell ethernet/fiber/coax/lmr cable all day 5 days a week.. so..

[EddieZ]

believe what ever it is you wish to believe but cat3 is ******ed and any company who installed that should have their weener smacked.

Agree with that part 
Unless they put it in 20 years ago ofcourse.

[Wal_]

I have a 100% gigabit netwrok running in my home comprised of entirely cat5e. I see close to 850Mbps through my network, and and actual rate of 106+MBps.
So your statement about cat5e is completely untrue.

Cat5e all around in my intricate yet precious network providing Gigabit speeds all around.

[ttmcmurry]

I really do get humored in a good way by people when they're adamant about something.

Fact is the TIA/EIA 568-B1 standard specifies that Cat5e carries up to a 100MHz carrier frequency.  There are 5e cables that do far exceed the required "megahertz" for 5e - but it isn't necessary for proper gigabit operation.  The standard also specifies how 10/100/1000 connections via a 5e cable work.  It's completley capable of full duplex at all speeds.  As many of us has indicated, we use 5e cabling with gigabit ethernet every day without fail.   A simple Google search (for a site OTHER than wikipedia, [exploitive deleted] bless its soul) will return and verify all of this info. 

In v_lestat's defense, the truth is anyone who is going to be buying bulk cable these days should be moving on to Cat6 or even Cat7 to future-proof yourself in an office or industrial area.  Any good salesman should pitch Cat6/7 to a potential customer, I agree 100%.  Though claiming Cat5/5e can't reliably do gigabit is contrary to published standard. 

One last note, Cat6 was designed to do 10Gbit over copper while maintaining backward compatibility...

Edit:  Hey D-Link Guys.. above I said ".. site other than wikipedia G o d bless its soul" and it got [exploitive deleted] .. that wasn't an expletive .. and it's spelled wrong.