nikolaz (OP)
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April 25, 2014, 11:01:25 AM
Last edit: April 25, 2014, 11:49:24 AM by nikolaz |
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Hello dear technical gurus, I have question, it seems some of the ferrite beads have been damaged (please see the highlighted section in the image below). I was wondering how easy it is to replace them and if so does anyone know how much that would usually cost? I have sent an email to find out if it is covered under the warranty as I did not overclock the blade or modified it in anyway (image below is from Google). Would really appreciate the help.  Close up  |
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J4bberwock
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April 25, 2014, 01:58:16 PM |
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Best choice will be to send the blade for replacement under warranty.
unless you know where the trouble came from in the first place, you'll probably face it again, even after replacing ferrite beads.
So, for the components,
C217 and C208 are capacitor, I'll have to check the tracks on my board to be sure which one they are.
I believe something around 22uF 25v 1206 size, but I really need to check since the schematic isn't the exact same as the G-Blade
FB28 is ferrite bead, 300ohm@100MHz,3A, 1206 size
FB29 is ferrite bead, 300ohm@100MHz,3A, 1206 size
I found same values FB on ebay for around 5 or 6$ each. should be available from digikey, mouser...
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nikolaz (OP)
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April 25, 2014, 02:07:41 PM |
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Thanks for the reply... I have got in touch with Hashra, just waiting for them to get back to me. Basically I am not sure what the issue actually but I think it could be down to bad power supply or I just got very unlucky. I am using http://www.maplin.co.uk/p/power-pax-60w-switched-mode-dc-fixed-voltage-12v-power-supply-n95ju -- I have total of 5 blades, 2 of them are hashing away with the same power supply for other 3 not so much. I am hoping it is covered by the warranty otherwise I might need to try and fix it myself :-( |
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J4bberwock
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April 25, 2014, 04:49:20 PM |
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You'd better use 100w power supply for each blade to get some spare power.
As for replacing the components, hopefully, they are near the edge of the board, so less risks to mess something else.
If you are comfortable with soldering, 1206 SMD are quite easy to replace, even with a soldering iron.
easier with soldering station with regulated temperature.
Hot air station is overkill for those "big" SMD, and you have to be used to soldering with it.
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nikolaz (OP)
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April 25, 2014, 04:58:42 PM |
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I have actually bought all of the parts now including soldering kit... Just in case, for some weird reason it is not covered by the warranty, also it doesn't hurt to have these around. I do have few PSUs laying around, and I have also ordered "Gridseed power adapter cable 12v 4-pin molex to 2 barrel plugs" so I can run them from my 2 x Corsair 850W PSU. Thank you so much for the help... Hashra, it's your move now  |
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HASHRA
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HASHRA - MINING TO THE MOON
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April 25, 2014, 09:37:39 PM |
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Hi Nikolaz Really sorry to see this, we tested every unit too before shipping. : ( Obviously we have been in touch now by PM and we'll obviously do our best to get you hashing again soon! Still under warranty of course. Regarding communicating with us please use our email " info@hashra.com". Thanks |
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HASHRA
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HASHRA - MINING TO THE MOON
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April 25, 2014, 09:40:27 PM |
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You'd better use 100w power supply for each blade to get some spare power.
As for replacing the components, hopefully, they are near the edge of the board, so less risks to mess something else.
If you are comfortable with soldering, 1206 SMD are quite easy to replace, even with a soldering iron.
easier with soldering station with regulated temperature.
Hot air station is overkill for those "big" SMD, and you have to be used to soldering with it.
Spot on. We would advise to use a standard ATX power supply, we provide for free 6 PIN PCIE cables with our Blades so this can be down easily. Just not worth taking the risk on the power supply, can easily damage the unit. |
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nikolaz (OP)
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April 25, 2014, 09:43:40 PM |
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Hi Nikolaz Really sorry to see this, we tested every unit too before shipping. : ( Obviously we have been in touch now by PM and we'll obviously do our best to get you hashing again soon! Still under warranty of course. Regarding communicating with us please use our email " info@hashra.com". Thanks Yes, as always you guys are great at getting back to me... Obviously something went wrong badly, let's discuss this via email. Just an FYI though with your new firmware 2 of my working gridseed blades are hashing between 5.5 - 6.0Mh/s with 4% reject rate using the default clock rate. |
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larsoeh
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June 19, 2014, 08:25:26 PM |
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Hi,
This question is related to the AFB26 component between the USB and power socket.
Does anyone know the specs for this component and where to buy it?
Thanks in advance
Lars O
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Lumanet
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July 05, 2015, 08:19:13 PM |
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Hi Guys,
let me know what is going on. We do repair Gridseeds 5 Chip and also Blades. We do have all the parts and can share details if you just need details.
While you also do have them already apart I suggest you do a little modding :-).
regards
Olaf
LSE LLC
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