I'm gonna enjoy testing this mod to see what performance increase I get ....................................
Wolfey - stick with what you know how to do. Don't you already have the best solution for you? Why would you want to change now?
Topic: GridSeed 5-chip USB miner voltage mod - page 23. (Read 156991 times)
Wolfey - stick with what you know how to do. Don't you already have the best solution for you? Why would you want to change now?
zig modded another Gridseed today to see if the clicking sound is a problem of the first one but the secondone show the same clickung sound. i checked the solder connections no bridge and the ground / R128 test shows the values it should i dont tested the c42 DDV because i dont know which it is any idea ore somone has the same problem / solution fr it ?
Edit: The clicking stopped and so the sending of shares did I killd the gridseed ? where should is search for a point to fix it the chip ar not getting warm at all so i assume they are not calculating
might it help to put it in the oven
Edit: The clicking stopped and so the sending of shares did I killd the gridseed ? where should is search for a point to fix it the chip ar not getting warm at all so i assume they are not calculating
might it help to put it in the oven
I think I saw someone else have this same problem. They did Zig's pod clicker mod, then it started clicking. They re did the solder connections and the clicking sound stopped but the pod was DOA as in no share submittals, not working, nothing! So failing to do the mod 'correctly?' in the first place, may cause PERMANENT damage to your pod!
Just an observation of possibilities.
I'd stick with what is KNOWN to work. R52 mod with 49.9k resistor replacement. So what if it takes a little bit longer to do the mod or reverse the mod later (which will probably NEVER be needed!)
Best for everyone to just do the R52 mod and let your miner mine and and start making you more $/KH instead of sitting on the bench longer or becoming an expensive paper weight!
Remember, R52 mod works as proven by thousands of mods by now! No problems down the road AND, if the R52 mod isn't done right the first time, it won't destroy your pod!
God speed!
Yeah, you'd only reverse to stock or maybe VMOD1 if a SHA coin was regularly at the top of the profitability lists. It seems unlikely but my guess is that there is a lot of older Bitcoin hardware that might be used to mine other SHA-256 coins as Bitcoin difficulty rises and makes the old equipment obsolete. Just a guess.
btw, VMOD1 is pretty impressive for the low watts used. 413 kH/s 48hr average Scrypt only using sandor's cpuminer.
btw, VMOD1 is pretty impressive for the low watts used. 413 kH/s 48hr average Scrypt only using sandor's cpuminer.
Ahh, right, for all 3 values you'd need to add a physical switch or jumper. Thanks for catching that Xer0 ...
So, your idea of using a 20k spindle-pot as the resistor is ZiG's rmod would allow all values from 33k to 53k right?
Is this summary correct?
Bridge R333 to allow "voltage=0" or "voltage=1" to be used via some software.
ZiG's rmod ups everything by adding the resistor chosen.
So, if you picked rmod 14k then you get 50k with "voltage=1" or 47k with "voltage=0".
Short this use of Zig's rmod with a jumper or switch then you'd get 36k with "voltage=1" and stock 33k with "voltage=0"
Without software options you'd bridge R333 and also bridge R337 to force "voltage=1" via hardware.
So, if you picked rmod 14k then you get 50k. Short this use of Zig's rmod with a jumper or switch then you'd get 36k.
Without software options and no additional bridges if you picked rmod 14k then you'd get 47k. Short Zig's rmod with a jumper or switch then you'd get 33k.
Bridge R333 to allow use of software voltage switches.
Bridge R333 and R337 to force use of R66 (36k).
Cut R46 to allow adding resistance in series aka rmod.
Adding a resistor between R46 points will add to R139 (36k) and/or R66 (33k) dependent on your choice of bridges used or bridge and software used.
So, your idea of using a 20k spindle-pot as the resistor is ZiG's rmod would allow all values from 33k to 53k right?
Is this summary correct?
Bridge R333 to allow "voltage=0" or "voltage=1" to be used via some software.
ZiG's rmod ups everything by adding the resistor chosen.
So, if you picked rmod 14k then you get 50k with "voltage=1" or 47k with "voltage=0".
Short this use of Zig's rmod with a jumper or switch then you'd get 36k with "voltage=1" and stock 33k with "voltage=0"
Without software options you'd bridge R333 and also bridge R337 to force "voltage=1" via hardware.
So, if you picked rmod 14k then you get 50k. Short this use of Zig's rmod with a jumper or switch then you'd get 36k.
Without software options and no additional bridges if you picked rmod 14k then you'd get 47k. Short Zig's rmod with a jumper or switch then you'd get 33k.
Bridge R333 to allow use of software voltage switches.
Bridge R333 and R337 to force use of R66 (36k).
Cut R46 to allow adding resistance in series aka rmod.
Adding a resistor between R46 points will add to R139 (36k) and/or R66 (33k) dependent on your choice of bridges used or bridge and software used.
Yep...that is exactly what is possible...But I will use Vmod 1 bridge and Software to select 33K or 36K...
we are all trying to get better speed and resulting hashes...so Lower speeds by shorting Rmod are really only for "reversing to stock" ...if there is any need...
Trimm pot = 20K as Rmod... is IDEAL for experimenting and testing...This is what I am using since the beggining...
ZiG
I'm gonna enjoy testing this mod to see what performance increase I get or will I get 'Zig's pod clicker mod' results.... We'll see.
There could be a difference between the schematic circuit and the actual pcb circuit which could be the 'secret' culprit behind Zig's clicking pod mod problem.
Remember, the 49.9k R52 mod works. PERIOD! Proven by thousands of mods by now.
No possibility of clicking or other problems later down the road.
Good luck!
Ahh, right, for all 3 values you'd need to add a physical switch or jumper. Thanks for catching that Xer0 ...
So, your idea of using a 20k spindle-pot as the resistor is ZiG's rmod would allow all values from 33k to 53k right?
Is this summary correct?
Bridge R333 to allow "voltage=0" or "voltage=1" to be used via some software.
ZiG's rmod ups everything by adding the resistor chosen.
So, if you picked rmod 14k then you get 50k with "voltage=1" or 47k with "voltage=0".
Short this use of Zig's rmod with a jumper or switch then you'd get 36k with "voltage=1" and stock 33k with "voltage=0"
Without software options you'd bridge R333 and also bridge R337 to force "voltage=1" via hardware.
So, if you picked rmod 14k then you get 50k. Short this use of Zig's rmod with a jumper or switch then you'd get 36k.
Without software options and no additional bridges if you picked rmod 14k then you'd get 47k. Short Zig's rmod with a jumper or switch then you'd get 33k.
Bridge R333 to allow use of software voltage switches.
Bridge R333 and R337 to force use of R66 (36k).
Cut R46 to allow adding resistance in series aka rmod.
Adding a resistor between R46 points will add to R139 (36k) and/or R66 (33k) dependent on your choice of bridges used or bridge and software used.
So, your idea of using a 20k spindle-pot as the resistor is ZiG's rmod would allow all values from 33k to 53k right?
Is this summary correct?
Bridge R333 to allow "voltage=0" or "voltage=1" to be used via some software.
ZiG's rmod ups everything by adding the resistor chosen.
So, if you picked rmod 14k then you get 50k with "voltage=1" or 47k with "voltage=0".
Short this use of Zig's rmod with a jumper or switch then you'd get 36k with "voltage=1" and stock 33k with "voltage=0"
Without software options you'd bridge R333 and also bridge R337 to force "voltage=1" via hardware.
So, if you picked rmod 14k then you get 50k. Short this use of Zig's rmod with a jumper or switch then you'd get 36k.
Without software options and no additional bridges if you picked rmod 14k then you'd get 47k. Short Zig's rmod with a jumper or switch then you'd get 33k.
Bridge R333 to allow use of software voltage switches.
Bridge R333 and R337 to force use of R66 (36k).
Cut R46 to allow adding resistance in series aka rmod.
Adding a resistor between R46 points will add to R139 (36k) and/or R66 (33k) dependent on your choice of bridges used or bridge and software used.
Yep...that is exactly what is possible...But I will use Vmod 1 bridge and Software to select 33K or 36K...
we are all trying to get better speed and resulting hashes...so Lower speeds by shorting Rmod are really only for "reversing to stock" ...if there is any need...
Trimm pot = 20K as Rmod... is IDEAL for experimenting and testing...This is what I am using since the beggining...
ZiG
C42 in photo here: https://bitcointalksearch.org/topic/m.6359210 upper left of center on photo of PCB. I measured 1.75v there when I added a 15k rmod.
Emu05 - what is, where is R128?
Emu05 - what is, where is R128?
Ahh, right, for all 3 values you'd need to add a physical switch or jumper. Thanks for catching that Xer0 ...
So, your idea of using a 20k spindle-pot as the resistor is ZiG's rmod would allow all values from 33k to 53k right?
Is this summary correct?
Bridge R333 to allow "voltage=0" or "voltage=1" to be used via some software.
ZiG's rmod ups everything by adding the resistor chosen.
So, if you picked rmod 14k then you get 50k with "voltage=1" or 47k with "voltage=0".
Short this use of Zig's rmod with a jumper or switch then you'd get 36k with "voltage=1" and stock 33k with "voltage=0"
Without software options you'd bridge R333 and also bridge R337 to force "voltage=1" via hardware.
So, if you picked rmod 14k then you get 50k. Short this use of Zig's rmod with a jumper or switch then you'd get 36k.
Without software options and no additional bridges if you picked rmod 14k then you'd get 47k. Short Zig's rmod with a jumper or switch then you'd get 33k.
Bridge R333 to allow use of software voltage switches.
Bridge R333 and R337 to force use of R66 (36k).
Cut R46 to allow adding resistance in series aka rmod.
Adding a resistor between R46 points will add to R139 (36k) and/or R66 (33k) dependent on your choice of bridges used or bridge and software used.
So, your idea of using a 20k spindle-pot as the resistor is ZiG's rmod would allow all values from 33k to 53k right?
Is this summary correct?
Bridge R333 to allow "voltage=0" or "voltage=1" to be used via some software.
ZiG's rmod ups everything by adding the resistor chosen.
So, if you picked rmod 14k then you get 50k with "voltage=1" or 47k with "voltage=0".
Short this use of Zig's rmod with a jumper or switch then you'd get 36k with "voltage=1" and stock 33k with "voltage=0"
Without software options you'd bridge R333 and also bridge R337 to force "voltage=1" via hardware.
So, if you picked rmod 14k then you get 50k. Short this use of Zig's rmod with a jumper or switch then you'd get 36k.
Without software options and no additional bridges if you picked rmod 14k then you'd get 47k. Short Zig's rmod with a jumper or switch then you'd get 33k.
Bridge R333 to allow use of software voltage switches.
Bridge R333 and R337 to force use of R66 (36k).
Cut R46 to allow adding resistance in series aka rmod.
Adding a resistor between R46 points will add to R139 (36k) and/or R66 (33k) dependent on your choice of bridges used or bridge and software used.
zig modded another Gridseed today to see if the clicking sound is a problem of the first one but the secondone show the same clickung sound. i checked the solder connections no bridge and the ground / R128 test shows the values it should i dont tested the c42 DDV because i dont know which it is any idea ore somone has the same problem / solution fr it ?
i had a clicking sound when smd wasnt properly soldered, maybe you have scratched smd line on pcb or something.
check resistance value between that test point in lower position, and directly on chip to ensure that that line is operational.
cheers
zig modded another Gridseed today to see if the clicking sound is a problem of the first one but the secondone show the same clickung sound. i checked the solder connections no bridge and the ground / R128 test shows the values it should i dont tested the c42 DDV because i dont know which it is any idea ore somone has the same problem / solution fr it ?
Edit: The clicking stopped and so the sending of shares did I killd the gridseed ? where should is search for a point to fix it the chip ar not getting warm at all so i assume they are not calculating
might it help to put it in the oven
Edit: The clicking stopped and so the sending of shares did I killd the gridseed ? where should is search for a point to fix it the chip ar not getting warm at all so i assume they are not calculating
might it help to put it in the oven
36k or 47k or 50k options all controlled by software. Can't ask for more than that!
from my understanding, you can only soft-switch between 47k and 50k thenfor doing 400/500kH switch one must find and replace the 3k which v=1 is adding
I think that ZiG's discovery has additional uses. (I'll try to confirm tomorrow)
its even great for Experiments: just solder a 20km Ohm spindle-potmore room, less cables then with R52 replacing
and you cant accidentally turn R to zero cuz there is still 33k in series
for those in the USA, I just cam across a very good price for a groupbuy
https://bitcointalksearch.org/topic/gb-for-gridseed-5-chip-0193btc-blades-299btc-583755
https://bitcointalksearch.org/topic/gb-for-gridseed-5-chip-0193btc-blades-299btc-583755
not really a great deal if you ask me...
GAW sells them for $83, right now!
I'm sure once the gen 2 chips come out, these will be DIRT CHEAP
http://www.gawminers.com/300-kh-s-single-gridseed-asic-miner/
yes no doubt that prices will fall real quick, I've got some pre orders at Fibonacci. 8.6Mh for 320$ that's going to kill Gridseed prices fast when those come out.
but here in Europe the gridseeds remain expensive it's hard to get one below 120/130 euros!
Not too hard, I have 100 coming in next week, if I'm not using ebay and paypal, I can do them for 100 euro each + delivery, I'm in the UK. 10 for E950 + delivery. I'd be amazed if I'm the only person selling at those prices.
My plan is to sell most of them in ebay at a small profit, keep 20 for myself, buy another batch etc etc until I'm sick of selling them!
I'm hoping volt modded ones will sell for a nice premium, I'm a bit dubious about running the full 500kH voltage.
Hey Happydaze,
For the #2...After you remove the resistor...You still have to short R46...
Thanks for catching that!
I like those ideas. I think only cgminer has the software voltage switch though.
I get it. Just adding 1 bridge, cutting 1 bridge and adding one resistor, a 14k Rmod plus the 2 software switches would give us 36k or 47k or 50k options all controlled by software. Can't ask for more than that!
ZiG's rmod works. Mine has been running for several days now https://bitcointalksearch.org/topic/m.6364716 non stop.
I think it is easier to do but you still need to make good solder connections.
I think it is easier to do but you still need to make good solder connections.
Thanks buddy...I am glad to see your verification...Appreciate your time and effort to explore and hope you enjoy the results...
As of some participants having buzzing sound ...it is a missing connection /bad solder point...
As I said before...MEASURE first...between two pads of R46 resistance should be 17K...or Rmod...You can also measure between GROUND and INNER point of R139 ("R52) to see that there is 50K...THIS IS BEFORE YOU TURN THE POWER ON...
Also NEXT ...MEASURE voltage supplied to the chips ...DVDD on C42...should be around 1.70-1.75V...IF NOT just report here...ask questions...Buzzing reporting only is not enough...it is like..."my car is not working..."
I can NOT inspect your soldering...but you CAN...Please...measure these 2 things and you will know is the mod is well done ...or not...BTW, Same is valid for any other mod ...R139 (R52) replacement etc...
Thanks,
ZiG
ZiG's rmod is adding a resistor in series and can be done at least 2 ways.
1. Cut the bridge at R46 and add a resistor between those two points. To undue just re-bridge R46. Removing the resistor is optional as it would be bypassed by the bridge.
OR
2. Cut the bridge at R46 and add a resistor between the outer point of R46 and CON3 pin 3 (DGND). To undue remove the resistor.
method 2 is a bit easier because you have lots of room to work at both points
method 1 is easier to undue
---------------------------------------------------------------------------------
I think that ZiG's discovery has additional uses. (I'll try to confirm tomorrow)
VMOD1 = 36k + ZiG's idea but using a 13k resistor (for example) would give you 49k. (not tested yet)
VMOD3 = 47K + ZiG's idea but using a 2k resistor (for example) would give you 49k. (not tested yet)
It looks useful for anyone who has done other mods but now want to try a higher resistor value. It's possible you won't have to undue the other mod if this works.
nemercry or ZiG would know if the second part of what I posted is correct or not.
For now, stick to the first part of my post (above the dotted line) as being ZiG's rmod.
(edit - I see ZiG posted as I was typing)
1. Cut the bridge at R46 and add a resistor between those two points. To undue just re-bridge R46. Removing the resistor is optional as it would be bypassed by the bridge.
OR
2. Cut the bridge at R46 and add a resistor between the outer point of R46 and CON3 pin 3 (DGND). To undue remove the resistor.
method 2 is a bit easier because you have lots of room to work at both points
method 1 is easier to undue
---------------------------------------------------------------------------------
I think that ZiG's discovery has additional uses. (I'll try to confirm tomorrow)
VMOD1 = 36k + ZiG's idea but using a 13k resistor (for example) would give you 49k. (not tested yet)
VMOD3 = 47K + ZiG's idea but using a 2k resistor (for example) would give you 49k. (not tested yet)
It looks useful for anyone who has done other mods but now want to try a higher resistor value. It's possible you won't have to undue the other mod if this works.
nemercry or ZiG would know if the second part of what I posted is correct or not.
For now, stick to the first part of my post (above the dotted line) as being ZiG's rmod.
(edit - I see ZiG posted as I was typing)
Hey Happydaze,
For the #2...After you remove the resistor...You still have to short R46...
I guess...you are targeting "SHORTING" the Rmod...Axial or SMD...Removal is OPTIONAL...very well said...
SECOND Part...I was thinking of some variety of speeds, that this mod is making possible...including adding some external components, like DIP switch(es) etc...to be able to select from several possible Voltages/speeds...including through Software ("voltage=0" or "1" )...
Unfortunately Gridseed left UNUSED VID1 pin of the Buck Convertor...
BUT...if we combine MOD 1 ...bridge to shift Voltage reference to 36K...with Rmod = 14K AND Software option "voltage=1" we can do 50K Vref...as a "Extreme - 1200/1250MHz"....
AND Software switching with "voltage=0" will shift Voltage reference back to 33K resistor... + 14K = 47K Total...this will be more balanced Overclock "Turbo " ...
...like 1125-1150-1175Mhz...which IMHO is the long term sweet spot for running 24/7...Having played with full range of all Voltages and Speeds I know it is DOABLE...have to test and see...
Thanks for your time to experiment with these ideas...
ZiG
ZiG's rmod works. Mine has been running for several days now https://bitcointalksearch.org/topic/m.6364716 non stop.
I think it is easier to do but you still need to make good solder connections.
I think it is easier to do but you still need to make good solder connections.
Glad to hear its working without causing any problems in your mods.
My report cometh
No, I don't have photos of method 1. I did method 2. I'm still waiting for my resistors to come in the mail. I want to do method 1 and will take a photo.
ZiG's rmod is adding a resistor in series and can be done at least 2 ways.
1. Cut the bridge at R46 and add a resistor between those two points. To undue just re-bridge R46. Removing the resistor is optional as it would be bypassed by the bridge.
OR
2. Cut the bridge at R46 and add a resistor between the outer point of R46 and CON3 pin 3 (DGND). To undue remove the resistor.
method 2 is a bit easier because you have lots of room to work at both points
method 1 is easier to undue
---------------------------------------------------------------------------------
I think that ZiG's discovery has additional uses. (I'll try to confirm tomorrow)
VMOD1 = 36k + ZiG's idea but using a 13k resistor (for example) would give you 49k. (not tested yet)
VMOD3 = 47K + ZiG's idea but using a 2k resistor (for example) would give you 49k. (not tested yet)
It looks useful for anyone who has done other mods but now want to try a higher resistor value. It's possible you won't have to undue the other mod if this works.
nemercry or ZiG would know if the second part of what I posted is correct or not.
For now, stick to the first part of my post (above the dotted line) as being ZiG's rmod.
(edit - I see ZiG posted as I was typing)
1. Cut the bridge at R46 and add a resistor between those two points. To undue just re-bridge R46. Removing the resistor is optional as it would be bypassed by the bridge.
OR
2. Cut the bridge at R46 and add a resistor between the outer point of R46 and CON3 pin 3 (DGND). To undue remove the resistor.
method 2 is a bit easier because you have lots of room to work at both points
method 1 is easier to undue
---------------------------------------------------------------------------------
I think that ZiG's discovery has additional uses. (I'll try to confirm tomorrow)
VMOD1 = 36k + ZiG's idea but using a 13k resistor (for example) would give you 49k. (not tested yet)
VMOD3 = 47K + ZiG's idea but using a 2k resistor (for example) would give you 49k. (not tested yet)
It looks useful for anyone who has done other mods but now want to try a higher resistor value. It's possible you won't have to undue the other mod if this works.
nemercry or ZiG would know if the second part of what I posted is correct or not.
For now, stick to the first part of my post (above the dotted line) as being ZiG's rmod.
(edit - I see ZiG posted as I was typing)
Thanks so much for the clarification. Method 2 it is.
Guide corrected appropriately.
Would you also happen to have an image for Method 1?
ZiG's rmod works. Mine has been running for several days now https://bitcointalksearch.org/topic/m.6364716 non stop.
I think it is easier to do but you still need to make good solder connections.
I think it is easier to do but you still need to make good solder connections.
Hey Guys 
I just updated my guide. It now includes:
- ZiG's rVMOD3 (Reversible VMOD3) in simple language and beautiful high resolution pictures.
- G-Blade VMOD1 Information & Pictures
Check it out, let me know what you think
I just updated my guide. It now includes:
- ZiG's rVMOD3 (Reversible VMOD3) in simple language and beautiful high resolution pictures.
- G-Blade VMOD1 Information & Pictures
Check it out, let me know what you think
What about the 2 or more pods that were ruined by trying to do 'Zigs' mod?
Have they been addressed and handled or not?
I am afraid of it happening to others who apply it.
And some others have already passed on it to in favor of the R52 aka 'the great R139 discovery' axial or SMD 49.9k
I may try it while modding this next batch coming in.
I have serious reservations that something has been overlooked and may be causing damage to crystal oscillators.
2 so far that I've come across said their miner started 'clicking' which is really weird but totally possible ergo the above.
The only parts that could even possibly click would be the crystal 'most probable' - or L1 the inductor. If somehow and it's highly doubtful some of its windings are lose, the click could perhaps 'longshot' come from there.
Only other possibility is the sound of pulsed Arcing hence clicking but I don't see how that's even possible. There ain't no HV running in there anywhere. And oh, possibly a capacitor that has blown internally, that might click too. Nothing else on the card can or will, unless it releases its magic black smoke
I'll be reporting my results IF I even decide to try it.
Updates comin!
BAMM! BAMM!
fyi Jesse's guide already explains how to do the mod the way you're suggesting... now it's up to the people of the community to decide what mod works best for them.
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