Raspberry Pi Suffers Minor Production Glitch

btarunr · Mar 9, 2012, 12:16 PM

In late-February, the first batch of Raspberry Pi shipped out, but a minor production issue soon surfaced. The RJ-45 jack (common Ethernet port) soldered onto Raspberry Pi units were the ones without integrated magnets, leaving these boards without network connectivity. The problem was traced back to a sourcing glitch, and as The Verge writes, is not a difficult mistake to make. To fix the problem, one has to desolder the old jacks, and replace them with new ones. The pin-density of an RJ-45 jack isn't high, and a simple soldering kit is all one needs. The Raspberry Pi team is sourcing as many of these proper RJ-45 jacks as possible to put production of the next batch of these tiny computers back on track.

Source: The Verge

KonstantinDK · Mar 9, 2012, 01:19 PM

For integrated magnets you have to pay more then $35.

Shurakai · Mar 9, 2012, 02:41 PM

Curious, why do they even make ones without magnets if it leaves a board without network connectivity?

ron732 · Mar 9, 2012, 02:57 PM

Quote:

Originally Posted by Shurakai

Curious, why do they even make ones without magnets if it leaves a board without network connectivity?

I was thinking the same thing and Googled it. Apparently you use a none integrated RJ-45 connector with an external magnetic isolation transformer. If board space is critical you can use the RJ-45 with integrated magnetics.

faramir · Mar 9, 2012, 03:09 PM

Those are not 'magnets', they are pulse transformers (sometimes also reffered to as 'magnetics', as in devices that use magnetism to function). Jacks with integrated transformers are more expensive and what's worse, each PHY requires a specific transformer arrangement and ratio (regular versus center-tapped, different ratios) so there isn't just one single jack type that would fit every PHY in existence.

Older network cards simply used external pulse transformers to avoid the hassle of getting propper jacks - they are the large black "boxes", like the ones on this photo:

http://www.elec-intro.com/EX/05-13-23/ethernet-card.jpg

Frick · Mar 9, 2012, 04:04 PM

Quote:

Originally Posted by faramir

Older network cards simply used external pulse transformers to avoid the hassle of getting propper jacks - they are the large black "boxes", like the ones on this photo:

http://www.elec-intro.com/EX/05-13-23/ethernet-card.jpg

Aahhhhh. I've been wondering about that.

Aleksander · Mar 9, 2012, 04:18 PM

All new electronic and electric products lately are being really crappy
I have heard that there are old TV which are 1000x more durable than 3000$ TV of today

cheesy999 · Mar 9, 2012, 04:30 PM

Quote:

Originally Posted by Aleksander Dishnica

All new electronic and electric products lately are being really crappy
I have heard that there are old TV which are 1000x more durable than 3000$ TV of today

I wouldn't say all, I'd say it's closer to about 40%

Frick · Mar 9, 2012, 04:32 PM

Quote:

Originally Posted by Aleksander Dishnica

I have heard that there are old TV which are 1000x more durable than 3000$ TV of today

And I've heard Jesus was gay and that the old crazy president of Haiti was behind the JFK assassination with the help of voodoo.

option350z · Mar 9, 2012, 05:16 PM

Quote:

Originally Posted by Aleksander Dishnica

All new electronic and electric products lately are being really crappy
I have heard that there are old TV which are 1000x more durable than 3000$ TV of today

Really? Did you just noticed this? Because if you did many others don't. Electronics today are not built to last. Just like aircraft* cough cough Airbus cough*, they are meant to be something that you buy one year and last for a few years before you are out again to purchase the latest model. Unlike that Zenith radio from the 60's I have that still works, a crappy Samsung LED TV went out on me before that thing. Early model mind you...

camoxiong · Mar 10, 2012, 02:30 AM

I was going to buy the Pi, but I dont want to in a way

BeepBeep2 · Mar 10, 2012, 03:29 AM

Quote:

Originally Posted by camoxiong

I was going to buy the Pi, but I dont want to in a way

Nice. Very logical thought process you have there.

qwerty_lesh · Mar 10, 2012, 04:05 AM

All this talk about magnets and not a single Insane Clown Posse refrence, guys I am disappoint

newtekie1 · Mar 10, 2012, 04:19 AM

Quote:

Originally Posted by Aleksander Dishnica

I have heard that there are old TV which are 1000x more durable than 3000$ TV of today

Of course they are, the old tube style made of insanely thick glass is naturally more durable than a TV of today. But a TV of today is much better than an old TV, and as long as you don't drop the thing you shouldn't have a problem.

BeepBeep2 · Mar 10, 2012, 04:22 AM

Quote:

Originally Posted by newtekie1

Of course they are, the old tube style made of insanely thick glass is naturally more durable than a TV of today. But a TV of today is much better than an old TV, and as long as you don't drop the thing you shouldn't have a problem.

Build quality of today vs then = horrible
Picture quality of today vs then = worse blacks but 8x better resolution

R_1 · Mar 11, 2012, 09:58 AM

Good ol' times.

Still remember my 6800. Not as good as i5-2600k, but kicked ass back in the days.

Chevalr1c · Mar 12, 2012, 02:54 AM

nvm

Mar 9, 2012, 12:16 PM	#1
btarunr Editor & Senior Moderator Join Date: Oct 2007 Location: Hyderabad, India Posts: 14,981 (7.31/day) Thanks: 788 Thanked 12,895 Times in 5,647 Posts System Specs	Raspberry Pi Suffers Minor Production Glitch In late-February, the first batch of Raspberry Pi shipped out, but a minor production issue soon surfaced. The RJ-45 jack (common Ethernet port) soldered onto Raspberry Pi units were the ones without integrated magnets, leaving these boards without network connectivity. The problem was traced back to a sourcing glitch, and as The Verge writes, is not a difficult mistake to make. To fix the problem, one has to desolder the old jacks, and replace them with new ones. The pin-density of an RJ-45 jack isn't high, and a simple soldering kit is all one needs. The Raspberry Pi team is sourcing as many of these proper RJ-45 jacks as possible to put production of the next batch of these tiny computers back on track. Source: The Verge Last edited by btarunr; Mar 9, 2012 at 04:44 PM.

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Mar 9, 2012, 01:19 PM	#2
KonstantinDK Join Date: Mar 2012 Posts: 20 (0.05/day) Thanks: 0 Thanked 2 Times in 2 Posts	For integrated magnets you have to pay more then $35.

Mar 9, 2012, 02:41 PM	#3
Shurakai Join Date: Oct 2007 Location: Australia, SA Posts: 232 (0.11/day) Thanks: 61 Thanked 19 Times in 14 Posts System Specs	Curious, why do they even make ones without magnets if it leaves a board without network connectivity?

Mar 9, 2012, 03:09 PM	#5
faramir Join Date: May 2011 Posts: 203 (0.28/day) Thanks: 5 Thanked 27 Times in 20 Posts	Those are not 'magnets', they are pulse transformers (sometimes also reffered to as 'magnetics', as in devices that use magnetism to function). Jacks with integrated transformers are more expensive and what's worse, each PHY requires a specific transformer arrangement and ratio (regular versus center-tapped, different ratios) so there isn't just one single jack type that would fit every PHY in existence. Older network cards simply used external pulse transformers to avoid the hassle of getting propper jacks - they are the large black "boxes", like the ones on this photo: http://www.elec-intro.com/EX/05-13-23/ethernet-card.jpg

Mar 9, 2012, 04:18 PM	#7
Aleksander Join Date: Dec 2009 Posts: 3,028 (2.39/day) Thanks: 648 Thanked 280 Times in 228 Posts System Specs	All new electronic and electric products lately are being really crappy I have heard that there are old TV which are 1000x more durable than 3000$ TV of today

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Mar 10, 2012, 02:30 AM	#11
camoxiong Join Date: Dec 2010 Location: Fresno, CA Central Valley Posts: 536 (0.61/day) Thanks: 112 Thanked 44 Times in 36 Posts System Specs	I was going to buy the Pi, but I dont want to in a way __________________ My Heatware doesn't have anything, but my Ebay does. Heatware - http://www.heatware.com/eval.php?id=73415 Ebay - http://myworld.ebay.com/camoxiong

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Mar 10, 2012, 04:05 AM	#13
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Mar 11, 2012, 09:58 AM	#16
R_1 Join Date: Nov 2006 Posts: 449 (0.19/day) Thanks: 4 Thanked 39 Times in 26 Posts	Good ol' times. Still remember my 6800. Not as good as i5-2600k, but kicked ass back in the days.

Mar 12, 2012, 02:54 AM	#17
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