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1  Hardware and U-Boot firmware / Hardware / Re: Bricked / Modded Guruplug-ServerPLUS - FOR SALE! on: January 05, 2011, 01:08:56 PM
How about 40 EUR + shipping?
2  Hardware and U-Boot firmware / Hardware / Bricked / Modded Guruplug-ServerPLUS - FOR SALE! on: January 04, 2011, 02:18:06 PM
After a couple of weeks of stable and flawless operation, my Guruplug bricked itself. After a power-cycle (which was necessary due to location change) it woudn't boot anymore.
Looking through the USB / Jtag adapter to the console: nothing happens. Green led is lit on the device.

I give up now with the whole thing, it's too much for me. I don't have any more precious time to spend unbricking it. I already spent a lot of time and money in doing the hardware mod (see: http://plugcomputer.org/plugforum/index.php?topic=1735.msg15573#msg15573), I want  no more of this mess.

For sale is the guruplug itself with all the mods, with the original power supply which is outside (attn: not the psu seen in the photo! it's the psu which was taken out of the plug to make room for the vent and sinks). I also don't sell the JTAG adapter either, I need that one for my other projects.

So the auction is open: who wants a plug and for how much?

The plug is located in Budapest / Hungary / Europe. Postage can be done - payment via PayPal.
3  Linux Stuff / General Linux questions / Re: GuruPlug: Change address range now cant log in on: December 16, 2010, 06:25:02 AM
Same here, needed to reflash the plug.   Embarrassed
4  Hardware and U-Boot firmware / Hardware / Re: new kernel on a guruplug on: December 15, 2010, 08:57:38 AM
do i do these modifications at the marvel prompt, or how do i get the guru to accept commands? ... theo
I did them at the serial console through the USB JTag adapter, at marvell prompt
5  Hardware and U-Boot firmware / Hardware / Re: Poll: Sheeva Plug Power Supply failures - does the mains voltage matter? on: December 15, 2010, 04:58:43 AM
See my post here about external PSU from eBay, much cheaper and better:
http://plugcomputer.org/plugforum/index.php?topic=1735.msg15574#msg15574

6  Hardware and U-Boot firmware / Hardware / Re: GuruPlug Server Plus Heat Problems on: December 15, 2010, 04:57:02 AM
You mean, I should try connecting the plug to a peripheral or floppy drive connector (5V)? I have few desktop PC power supplies unused, so I could try this.
Yes. Moreover, if it works, I'd keep using the Guruplug with one of them, dedicated with a DC jack or molex connector - as the desktop PC power supply is definitely more reliable and accurate than the original one.
7  Hardware and U-Boot firmware / Hardware / Re: GuruPlug Server Plus Heat Problems on: December 15, 2010, 04:06:51 AM
I will try to buy a new power supply with 5V/3A DC, but in fact, I am not really confident that this will work out.
Try with another PSU - your desktop PC's internal power supply has 5V and enough ampers, so take black as minus, red as plus from there, and see if your plug works. If it does, your power supply died. If it doesn't, your plug's mobo died - use as a brick.

8  Hardware and U-Boot firmware / Hardware / Re: GuruPlug Server Plus Heat Problems on: December 15, 2010, 03:34:14 AM
Prices:
Copper heatsink for CPU: ~4.3 USD incl shipping, 8 pcs in a pack, need only 2
Aluminium heatsink for ram, flash, nic: ~2.7 USD incl shipping, 8 pcs in a pack, need only 6
External PSU: ~12 USD incl shipping
FAN Metal Wire 40mm Grill/Guard: ~2 USD incl shipping (see this)

I got the 40mm fan from a local store - it's actually a chipset cooler set, just removed the fan from the chipset heatsink. It's a 12V fan, which spins with zero noise at 5V.
9  Hardware and U-Boot firmware / Hardware / Re: GuruPlug Server Plus Heat Problems on: December 15, 2010, 02:50:54 AM
Exactly. (I didn't provide direct links in my previous post, as after the item ends, the link becomes invalid)

PSU: http://global.ebay.com/5V_DC_55A_30W_Regulated_Switching_Power_Supply_/270612998405/item

It's a very stable power supply, I'm using one for my modded router too. I strongly advice it to the GuruPlug also: not only cheaper, but much better build quality and precise voltage control using the little trimmer and a screwdriver. Use a multimeter to set voltage to exactly 5.00 Volts.
10  Hardware and U-Boot firmware / Hardware / Re: GuruPlug Server Plus Heat Problems on: December 14, 2010, 10:02:19 AM
More pictures - part 2.

After removing and inspecting the internal PSU, I decided to get from eBay a much better one, which allows to fine-tune the output voltage by milivolts using a trimmer. It's a 5V 5.5A unit, much easier and safer than to use the original PSU, it's already boxed - and much cheaper.

The fan is a 12V one (40mm / 7mm thin - there is room for thicker). Heatsinks also from eBay - self-sticking.

Works flawlessly - and zero noise.
11  Hardware and U-Boot firmware / Hardware / Re: GuruPlug Server Plus Heat Problems on: December 14, 2010, 09:54:41 AM
Same here.  Huh

Here are my hw mods to GuruPlug Server, see pics attached.
12  Hardware and U-Boot firmware / Hardware / Re: Male connector for GuruPlug UART/JTAG ports on: October 30, 2010, 12:55:52 PM
*maybe* save $10 over
Unfortunately it's not a 'maybe'. Shipping doubles the price.
13  Hardware and U-Boot firmware / Hardware / Re: Male connector for GuruPlug UART/JTAG ports on: October 30, 2010, 12:50:23 PM
What did you use for the TTL-level UART signals, and how? Did you connect it to a serial port?
14  Hardware and U-Boot firmware / Hardware / Re: Male connector for GuruPlug UART/JTAG ports on: October 30, 2010, 12:37:39 PM
Thank you. But my question is: what JTAG adapter did you use to connect it to the PC? There are hundreds of JTAG boards out there, even with the same chip as the one sold Globalscale Technologies, Inc. overpriced. Do you use a cheaper model? Can you share the connection schematic?

Million thanks in advance.
15  Hardware and U-Boot firmware / Hardware / Re: Male connector for GuruPlug UART/JTAG ports on: October 30, 2010, 11:27:58 AM
Yep, this connector worked for me and UART connection is up and running!
Hello!

How did you do it, what adapter did you use?

I found a Russian blog describing how to make a UART connection to the GuruPlug with a Nokia CA-42, or DKU-5 cable
http://habrahabr.ru/blogs/DIY/101990/
(based on http://buffalo.nas-central.org/wiki/Use_a_Nokia_Serial_Cable_on_an_ARM9_Linkstation)
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