My dualcore 2.3 PM has 2 ethernet ports, each is separate, with 2 different Ethernet ports. I've only used one so can't comment on speed differences. They are supposed to be the same. YMMV
- Peter PS: Excuse the dreaded "top post" but comcast mailer overrides all sensibilities. ----- Original Message ----- From: "Dan" <[email protected]> To: [email protected] Sent: Friday, March 4, 2011 6:57:39 AM Subject: Re: Strange ethernet issue (possibly) (context restored) At 1:01 PM +0000 3/4/2011, Andy wrote: >At 8:18 PM -0500 3/3/2011, Dan wrote: >>At 2:56 PM -0800 3/3/2011, AndyTheMac wrote: >>>wired network >>>1 dual 2.5GHZ G5, 1 QS 733, 2 GigE G4s and a BW G3 plus a minolta printer. >> >>This G5? >>.../powermac_g5_2.5_dp.html > >This one <http://dl.dropbox.com/u/2016390/G5.jpg> Ok. You mean the Quad, then? <http://www.everymac.com/systems/apple/powermac_g5/stats/powermac_g5_quad_2.5.html> >>>They all go into a Netgear 8 port gigabit router and then connect >>>to the internet through a Netgear modem. Please clarify - exactly what model router? what model modem? This is to some sort of cable service or DSL or ? >>>The download speeds form the internet to all the machines except >>>the G5 fluctuate between 20 and 30 KB/s. The G5 achieves download >>>speeds of around 400 KB/s with the cable in the bottom of the 2 >>>Ethernet ports. >>>If I plug my Macbook into the network using the cable from the G5 >>>I get between 20 - 30 KB/s. >>>If I plug that same cable into the top port in the G5, the >>>download speed drops to 20 - 30 KB/s. >>>The modem is, allegedly, connect to the internet with a downstream >>>speed of 7.9MB/s. > >How exactly are you measuring this speed? > >Inaccurately. By downloading a 5MB file from the same server and >noting the data transfer rate in the download window. Inaccurately is an understatement. To many unknown variables - server speed, the throughput of the network between you and it, browser overhead, browser averaging, etc. Use a real speed test, please. Of course, please make it clean test - no other apps running and no other network traffic on your LAN. <http://www.speakeasy.net/speedtest/> <http://www.broadband.gov/> > >Please clarify your units. Do you mean megabytes per second or megabits? > >Sorry, I mixed units! The G5 bottom port - 400kbps, G5 top port - >20-30kbps, all other machines 20-30kbps (kilobits per second) And your internet service is supposed to be 8 Mbps? (7.9 MB/sec would be ~80 Mbps -- expensive). 30 Kbps (less than V.90 dial-up speed!) over an 8 Mbps service is pitiful. Because that affects all your Macs, it's starting to sound like you have a cabling or switch or router or modem issue. The information from the ifconfig (Bruce's reply) will be helpful. > >Check to see what speed your ethernet link has sync'd at. > >Not done that yet but my Macbook connects with other ethernet networks at >full 1000mbps yet when using the same cable and router port as the G5 >bottom ethernet port, the speed changes. Anything talking to that router via wi-fi? (You didn't say exactly what model router it is, so I'm guessing it does wi-fi). Asking because I've seen many less-expensive routers taken to their knees because of being overloaded. - Dan. -- - Psychoceramic Emeritus; South Jersey, USA, Earth. -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list
