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Blisk
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May 28, 2014, 05:34:15 AM |
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Why you put that wires there?
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GenTarkin
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May 28, 2014, 05:55:39 AM |
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Why you put that wires there?
If theres a better place.. Id be willing to try =P but dont think there is. |
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Blisk
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May 28, 2014, 06:06:27 AM |
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Why you put that wires there?
If theres a better place.. Id be willing to try =P but dont think there is. I still have no idea why at all you put that wires on board? |
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GenTarkin
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May 28, 2014, 06:12:48 AM |
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Why you put that wires there?
If theres a better place.. Id be willing to try =P but dont think there is. I still have no idea why at all you put that wires on board? Oh an attempt to minimize voltage drop across the chips. Cuz theres a .05v difference between VRM area & chips. |
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Blisk
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May 28, 2014, 06:32:59 AM |
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Ok but you must be avare of making extra inductance on the board after that.
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styson
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May 28, 2014, 06:41:04 AM
Last edit: June 02, 2014, 12:34:29 PM by styson |
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Lost them while busy trying to find a short on the board, 3 Ferrites were blown and the FET is shorted !!! Waiting for replacement FET's now.
Thanks J4bberwock
anything else than the ferrites and fet blown? it can be helpful for some other people. As far as I can see, nothing else damaged, I did get a confirmation from gridseed that you can use 100ohm 1206 100Mhz Ferrite Bead instead of the 300ohm 1206 100Mhz bye the power plug, but they say you can't go lower than that, but I suppose if your using a good quality power supply you can just put a 0ohm resistor in the or jumper it like you guys do. As for the FETs, I have ordered : CSD16321Q5C (replaces IRFH5302) * Dual Cool CSD17556Q5B (replaces IRFH5300) * Correction these are not DualCool Which are the DualCool type, should run a lot cooler  |
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Blisk
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May 28, 2014, 06:55:09 AM |
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I will try with to-220 housing they are much easier to cool down
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tuanvie
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May 28, 2014, 09:03:17 AM |
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I am so interested to have a hardware mining
but whether the overlock the original without overlock feel the difference?
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GenTarkin
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May 28, 2014, 02:47:40 PM |
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Ok but you must be avare of making extra inductance on the board after that.
I barely know anything bout electronics, I just know this type of mod has been attempted on several multi chip ASIC designs in the past. So, wanted to try it on gblade. Its helped a bit, just not as much as Id hoped =) So, all in all, w/ the wire mod & bridge mod, Im at 925mhz .25% HW avg across all my blades. |
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ZiG
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May 28, 2014, 05:00:17 PM |
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Ok but you must be avare of making extra inductance on the board after that.
I barely know anything bout electronics, I just know this type of mod has been attempted on several multi chip ASIC designs in the past. So, wanted to try it on gblade. Its helped a bit, just not as much as Id hoped =) So, all in all, w/ the wire mod & bridge mod, Im at 925mhz .25% HW avg across all my blades. Good job, buddy... Bridge mod = VMOD1...Correct...? ZiG |
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GenTarkin
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May 28, 2014, 05:06:05 PM |
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Ok but you must be avare of making extra inductance on the board after that.
I barely know anything bout electronics, I just know this type of mod has been attempted on several multi chip ASIC designs in the past. So, wanted to try it on gblade. Its helped a bit, just not as much as Id hoped =) So, all in all, w/ the wire mod & bridge mod, Im at 925mhz .25% HW avg across all my blades. Good job, buddy... Bridge mod = VMOD1...Correct...? ZiG Yeahp, I think =P ... lol, its the one where u close to 2 x 2 solder pads and it brings it up .1v |
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wolfey2014
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May 28, 2014, 05:16:40 PM |
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Ok but you must be avare of making extra inductance on the board after that.
I barely know anything bout electronics, I just know this type of mod has been attempted on several multi chip ASIC designs in the past. So, wanted to try it on gblade. Its helped a bit, just not as much as Id hoped =) So, all in all, w/ the wire mod & bridge mod, Im at 925mhz .25% HW avg across all my blades. Good job, buddy... Bridge mod = VMOD1...Correct...? ZiG I would un-do that mod if I were you....you're probably going to lose more than you gain in the long run with that particular mod..... .also .25% HW error is too high... |
I Modify Miners Professionally! PM me for details!
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GenTarkin
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May 28, 2014, 05:35:06 PM |
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too high? anything 2% and lower is a gain....
Also, naw, the wire mod allowed me to go from 913 to 925 at same or less HW%
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wolfey2014
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May 28, 2014, 07:00:42 PM |
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too high? anything 2% and lower is a gain....
Also, naw, the wire mod allowed me to go from 913 to 925 at same or less HW%
What? Okay, have it your way  |
I Modify Miners Professionally! PM me for details!
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GenTarkin
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May 28, 2014, 09:03:10 PM |
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too high? anything 2% and lower is a gain....
Also, naw, the wire mod allowed me to go from 913 to 925 at same or less HW%
What? Okay, have it your way That is .25% ... vardiff calculated =) So the calculation is (HW * vardiff) / (Diff1A + Diff1R) * 100 |
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styson
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May 30, 2014, 05:36:49 AM |
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My CSD16321Q5C arrives today, gonna solder them tonight and have my second blade up and running CSD17556Q5C arrive next week only, so will try them then. |
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kaltar
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May 30, 2014, 02:26:14 PM |
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Small question, i have a bunch of 49.9k vertical resistors from moddings seeds, can i use one to mod a g-blade and just keeps an eye on tempeture and not go above lets say 1000mhz .?
and if yes, wich directions (side ) do i solder the top of the resistor ( yellow line ) or its doesn`t matter.
thanks
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DarkKnight
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May 30, 2014, 04:06:06 PM |
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Small question, i have a bunch of 49.9k vertical axial resistors from moddings seeds, can i use one to mod a g-blade and just keeps an eye on tempeture and not go above lets say 1000mhz .? Only if you want to fry your power MOSFETs in short order. It's not the set speed that damages the components, it's the current your trying to push through them. AFAIK, 43k is the highest anyone has gone, and that creates enough heat to melt the power jack. So many people just soldering crap on and off, not even really understanding what they are doing, or the consequences of it. Makes me wish there was a root privilege lock out for hardware. |
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kaltar
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May 30, 2014, 04:23:04 PM
Last edit: May 30, 2014, 04:43:03 PM by kaltar |
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Small question, i have a bunch of 49.9k vertical axial resistors from moddings seeds, can i use one to mod a g-blade and just keeps an eye on tempeture and not go above lets say 1000mhz .? Only if you want to fry your power MOSFETs in short order. It's not the set speed that damages the components, it's the current your trying to push through them. AFAIK, 43k is the highest anyone has gone, and that creates enough heat to melt the power jack. So many people just soldering crap on and off, not even really understanding what they are doing, or the consequences of it. Makes me wish there was a root privilege lock out for hardware. ok, so no more than a 39k but i can still use an axiel one. ? and is there a side to hit. ? |
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DarkKnight
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May 30, 2014, 06:31:51 PM
Last edit: May 30, 2014, 09:42:24 PM by DarkKnight |
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It's not entirely clear what you are asking, but it sounds like you didn't read through the thread.  You want to O/C your blade? Stop skimming and read through the entire thread. I've read all 17 pages many times, you can do it at least once. Those of you doing mods, are you using rework stations or a pencil iron? |
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