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by CCitizenTO
Mon Jul 16, 2012 6:13 pm
Forum: General discussion
Topic: D-Link 7-Port USB 2.0 Hub (DUB-H7)
Replies: 15
Views: 23960

D-Link 7-Port USB 2.0 Hub (DUB-H7)

Well I have just received my D-Link 7-Port USB 2.0 Hub (Model#: DUB-H7). First thing is first. Reading the instructions alludes to the fact that there are two 'fast charging ports' that deliver 1.2A of power. I found out that this will only take effect when the computer is 'off' or not connected. Wh...
by CCitizenTO
Mon Jul 16, 2012 2:09 pm
Forum: General discussion
Topic: Anyone have wifi dongle without external power?
Replies: 45
Views: 28461

Re: Anyone have wifi dongle without external power?

You're probably getting lower bandwidth with the wireless for two reasons 1) Interference from 30+ other wireless networks 2) Overhead built into the Ethernet protocol. Even when I do iperf through my Pi on it's native 100Mbps wired ethernet interface to my desktop computer with only a router betwee...
by CCitizenTO
Mon Jul 16, 2012 2:51 am
Forum: General discussion
Topic: Dlink dub-h4 -- Any feedback at all?
Replies: 15
Views: 12245

Re: Dlink dub-h4 -- Any feedback at all?

None personally but I'm going based off of what is said in http://elinux.org/RPi_VerifiedPeriphera ... m_USB_Hubs

I upgraded my firmware and distro (debian squeeze) so I'll let you know first hand when it arrives tomorrow.
by CCitizenTO
Sun Jul 15, 2012 8:50 pm
Forum: Beginners
Topic: OK light blinking
Replies: 2
Views: 1057

Re: OK light blinking

Ah ok I am using the latest firmware I was wondering if maybe it wasnt getting proper voltage or something... Good to know.
by CCitizenTO
Sun Jul 15, 2012 5:49 pm
Forum: Beginners
Topic: Will this power source work/be warmfull?
Replies: 4
Views: 925

Re: Will this power source work/be warmfull?

700mA is the minimum the Pi needs thus it should work. Good luck with modifications.
by CCitizenTO
Sun Jul 15, 2012 5:02 pm
Forum: General discussion
Topic: Dlink dub-h4 -- Any feedback at all?
Replies: 15
Views: 12245

Re: Dlink dub-h4 -- Any feedback at all?

I ordered a DUB-H7 which has some issues but I'm hoping an upgraded firmware and distro remove all issues.
by CCitizenTO
Sun Jul 15, 2012 5:00 pm
Forum: General discussion
Topic: USB 2.0/1.1 ?-- Connecting different USB Versions
Replies: 7
Views: 5717

Re: USB 2.0/1.1 ?-- Connecting different USB Versions

Well from what I understand... The USB ports work at their own speed. If you plug a USB1.1 peripheral in it'll work at it's own speed. Basically it's like a small network. Capacity is only used when it's needed. So your USB Wifi dongle if it's an N pobably uses 100-150Mbps. a USB2.0 port can handle ...
by CCitizenTO
Sun Jul 15, 2012 4:54 pm
Forum: General discussion
Topic: What power supply?
Replies: 9
Views: 9213

Re: What power supply?

So, 5V/2A is the best option that we can choose... If I want to use my external HD (Transcend Storejet 2.5" USB) with my RPi, it's ok a 5V/700mA power adapter? Well considering the requirements state 5V/700mA it should work. Remember that about 500mA is required to run the CPU itself and the other ...
by CCitizenTO
Sun Jul 15, 2012 4:50 pm
Forum: Beginners
Topic: OK light blinking
Replies: 2
Views: 1057

OK light blinking

I dont know but my Pi seems to be working properly but the OK light keeps blinking on and off... I was wondering if that is normal behavior.
by CCitizenTO
Sun Jul 15, 2012 2:00 am
Forum: General discussion
Topic: USB 3 for file-system
Replies: 2
Views: 1000

Re: USB 3 for file-system

Very good...

Although I would say it's probably falling back to USB2.0 speeds because that's all the RPi is capable of supporting. Still USB2.0 speeds are damn fast (like 480Mbps) whereas true USB3.0 speeds would be more like 3Gbps (same speeds as SATA2)
by CCitizenTO
Sun Jul 15, 2012 12:36 am
Forum: For sale
Topic: sd cards
Replies: 11
Views: 6948

Re: sd cards

very strange because my 32gb card is still ticking along fine!all i can suggest is to google for sd formatter(free sortware) and use that before trying again.also for the ebay link above,why 5 pounds more for xmbc?haha £35 quid fo a 32gb card just because its got an OS on it?cant wait till full on ...
by CCitizenTO
Sat Jul 14, 2012 5:21 pm
Forum: Networking and servers
Topic: USB-Ethernet adapters should work ok?
Replies: 6
Views: 13604

Re: USB-Ethernet adapters should work ok?

If that is the case then it will require a powered hub...
by CCitizenTO
Sat Jul 14, 2012 4:39 pm
Forum: Networking and servers
Topic: SD size to setup a web server
Replies: 6
Views: 4199

Re: SD size to setup a web server

I dont think the class makes a huge difference (the only reason classes are introduced is that some cameras with lots of Megapixels and digital camcorders need faster than normal write times... All things being equal (including price) go for the higher class though. Also I MAY be a bit off on my num...
by CCitizenTO
Sat Jul 14, 2012 4:33 pm
Forum: Networking and servers
Topic: USB-Ethernet adapters should work ok?
Replies: 6
Views: 13604

Re: USB-Ethernet adapters should work ok?

Actually I'd be willing to bet wired ethernet doesnt require as much mA to run as wireless ethernet. The reasoning behind this.... http://www.raspberrypi.org/phpBB3/viewtopic.php?f=46&t=10482 As well wireless dongles have to transmit a signal in a broadcast form. A Wired connection is more efficient...
by CCitizenTO
Sat Jul 14, 2012 4:22 pm
Forum: Networking and servers
Topic: SD size to setup a web server
Replies: 6
Views: 4199

Re: SD size to setup a web server

Well considering that when you unpack the Debian Squeeze image file it uses 1.9 GB... Also taking into account updating firmware (since it updates on the SD card, NOT on the Pi itself something I found out messing around with it) as well as running the updates (sudo apt-get update and sudo apt-get d...
by CCitizenTO
Sat Jul 14, 2012 4:10 pm
Forum: General discussion
Topic: USB Wifi Dongles and Power Usage
Replies: 31
Views: 20329

USB Wifi Dongles and Power Usage

So yeah I know the RPi Model B requires 5V/700mA to run and this accounts for 200mA of power going to the USB ports (for Keyboard/Mouse). I also noticed that in the wiki people are using 5V/2A adapters. I was wondering if you use a more powerful power supply to give power to the Pi if it's possible ...
by CCitizenTO
Sat Jul 14, 2012 4:01 pm
Forum: General discussion
Topic: Very Low Network Bandwidth with USB Network Dongle
Replies: 8
Views: 10122

Re: Very Low Network Bandwidth with USB Network Dongle

Good job!

Also when I tested iperf on my Pi's native 100Mbps interface it showed about 75Mbps (i'm guessing it's common to see anywhere from 10-25% overhead)
by CCitizenTO
Sat Jul 14, 2012 3:59 pm
Forum: General discussion
Topic: What power supply?
Replies: 9
Views: 9213

Re: What power supply?

Well considering the requirements state 5V/700mA it should work. Remember that about 500mA is required to run the CPU itself and the other 200mA are designed to be used by the USB ports for low powered peripherals like keyboard/mouse. Now the question is since many people are reporting other higher ...
by CCitizenTO
Fri Jul 13, 2012 9:50 pm
Forum: General discussion
Topic: Powered USB Hub Problems (Any reccomendations)
Replies: 6
Views: 3064

Re: Powered USB Hub Problems (Any reccomendations)

I ordered the dlink one online... DUB-H7 or whatever the one with 7 ports. just because I like to keep my options open.
by CCitizenTO
Thu Jul 12, 2012 4:05 pm
Forum: General discussion
Topic: Powered USB Hub Problems (Any reccomendations)
Replies: 6
Views: 3064

Re: Powered USB Hub Problems (Any reccomendations)

Actually I'm not gonna plug it into my Pi again because others have confirmed it to be a very bad USB hub... In fact it's the first one on the problem hubs... http://elinux.org/RPi_VerifiedPeripherals#Problem_USB_Hubs Leaks current back to the Pi and stuff... I need a reliable USB Hub because I want...
by CCitizenTO
Wed Jul 11, 2012 3:37 pm
Forum: General discussion
Topic: Powered USB Hub Problems (Any reccomendations)
Replies: 6
Views: 3064

Powered USB Hub Problems (Any reccomendations)

Alright well I went down to my local computer store to buy a powered usb hub... I went and picked up a Belkin USB 7-port Powered Hub (Part#: F4U018-BLK) and had nothing but problems. When I first put my USB hub in and plugged my Wireless N Nano adapter and Bluetooth adapter into it it issued Kernel ...
by CCitizenTO
Sun Jul 08, 2012 5:50 pm
Forum: User groups and events
Topic: CANADA! anyone in the GTA?
Replies: 35
Views: 7673

Re: CANADA! anyone in the GTA?

I just got my Pi on the 6th.. I ordered with RS Components about 2 weeks earlier.

Got it running and working on the 7th. Now using it headless.
by CCitizenTO
Sun Jul 08, 2012 5:32 pm
Forum: General discussion
Topic: Peripheral Problems Easily Solved
Replies: 0
Views: 848

Peripheral Problems Easily Solved

The biggest problem with peripherals is the lack of suitable power to drive them. You can only use some low powered USB devices like keyboards (plain no fancy usb ports on them or LCD screens, etc..), Mouse and probably USB Flash Drives. The easiest way to troubleshoot problem peripherals is by buyi...
by CCitizenTO
Sun Jul 08, 2012 4:45 pm
Forum: General discussion
Topic: Very Low Network Bandwidth with USB Network Dongle
Replies: 8
Views: 10122

Re: Very Low Network Bandwidth with USB Network Dongle

Well I havent been able to test a wireless connection but I've done iperf on eth0 and got the following result... 74.1 74.2 74.6 Mbps... This seems to indicate a 25% overhead or data loss on average. This is also a more ideal situation. My wire connection is about 2-3 feet long between the Pi and th...
by CCitizenTO
Sun Jul 08, 2012 5:58 am
Forum: General discussion
Topic: Very Low Network Bandwidth with USB Network Dongle
Replies: 8
Views: 10122

Re: Very Low Network Bandwidth with USB Network Dongle

Given you are mentioning 100Mbps wireless dongle I'll assume it is using the Wireless N (802.11n) standard rather than Wireless G (802.11g) standard. However, if you are using a Wireless N dongle to connect to a Wireless G Router it can and will fall back and use Wireless G speeds. Another thing tha...

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