GridSeed 5-chip USB miner voltage mod - page 83.

HashFire

newbie

Activity: 17

Merit: 0

Quote from: jamieb81 on March 18, 2014, 11:01:59 PM

Quote from: HashFire on March 18, 2014, 03:16:47 PM

So if you can solder the risks are very minimal considering you can unsolder the bridge if you need to. I am running my test seed at the moment with BFGMiner, There should be no problems doing this mod with that right?

So I'm getting one of these babies in pretty soon, what's the best miner soft to use.

I've seen on crypto blog that with BFG you don't need to replace any driver just plug in and mine,

can you confirm that?

so many here seem to prefer cpuminer but being able to use cgwatcher seems appealing!

Yep that is the guide I used. You still need the basic normal drivers that are not included in windows. I did it because I wanted to know the hash rate, adn CPUMiner was not showing that without switching drivers at that time I believe.

poopypants

full member

Activity: 134

Merit: 100

Did the mod with 2 solder bridges as shown above, freq 950 stable at 403-408 kh/s with two units out of the rest. Will wait 24hrs for longer results but I am pretty happy with the mod. Using OC Cpuminer, thanks again for the mod tip.

wolfey2014

sr. member

Activity: 378

Merit: 250

Quote from: HashFire on March 18, 2014, 09:15:10 PM

Well I had full intentions of modding mine tonight until I opened it up and saw the size of the resistors. For reference I put a grain of rice by the resistors. It's 7 resistors long. I am going to have to look into a different tip on the soldering iron and maybe a jig or something.

Grain of rice for reference.

I'm going to wait to find out if either of the moder's mods goes pop pop fizz fizz...and if they do, it ain't gonna be no relief!
But it won't be a chunk of cash bitten out of my ass either!
I'm pretty sure the mods are safe but the most important thing about this mod is higher stable hash rates!
I'm gonna give it a couple weeks before I dive in and mod my own pods.
Wolfey2014

jamieb81

sr. member

Activity: 308

Merit: 250

Quote from: HashFire on March 18, 2014, 03:16:47 PM

So if you can solder the risks are very minimal considering you can unsolder the bridge if you need to. I am running my test seed at the moment with BFGMiner, There should be no problems doing this mod with that right?

So I'm getting one of these babies in pretty soon, what's the best miner soft to use.

I've seen on crypto blog that with BFG you don't need to replace any driver just plug in and mine,

can you confirm that?

so many here seem to prefer cpuminer but being able to use cgwatcher seems appealing!

sandor111

hero member

Activity: 616

Merit: 500

1050 MHz doesn't seem to be that stable, but at least it submits some shares.

HashFire

newbie

Activity: 17

Merit: 0

Well I had full intentions of modding mine tonight until I opened it up and saw the size of the resistors. For reference I put a grain of rice by the resistors. It's 7 resistors long. I am going to have to look into a different tip on the soldering iron and maybe a jig or something.

Grain of rice for reference.
http://i.imgur.com/WDIV8Di.jpg

poopypants

full member

Activity: 134

Merit: 100

Thanks for taking the time to post this information, I appreciate it. Grin

wolfey2014

sr. member

Activity: 378

Merit: 250

Quote from: sandor111 on March 18, 2014, 06:26:27 PM

Quote from: Andareed on March 18, 2014, 06:24:49 PM

Quote from: sandor111 on March 18, 2014, 06:21:50 PM

Testing at 1000 MHz now, seems stable with slightly higher voltage.

Did you replace a resistor?

Yes, using a slightly higher one, 38k...
Edit: although I had to lower PLL voltage to 1.05 first

Stably reporting shares?
No red nonce lines?
What is the voltage level now?
What's the temp?
Which resistor did you change out?
Thanks
wolfey2014

simon66

sr. member

Activity: 423

Merit: 250

I don't see a speed increase in mine Sad

The non modded ones are running faster. I'm pulling these info from the pool

Grid1: 360Kh/s
Grid2: 350Kh/s
Grid3: 353Kh/s <---- This is the OC one
Grid4: 330Kh/s

Could there be something wrong?

sandor111

hero member

Activity: 616

Merit: 500

Quote from: Andareed on March 18, 2014, 06:24:49 PM

Quote from: sandor111 on March 18, 2014, 06:21:50 PM

Testing at 1000 MHz now, seems stable with slightly higher voltage.

Did you replace a resistor?

Yes, using a slightly higher one, 38k...
Edit: although I had to lower PLL voltage to 1.05 first

Andareed

member

Activity: 84

Merit: 14

Quote from: sandor111 on March 18, 2014, 06:21:50 PM

Testing at 1000 MHz now, seems stable with slightly higher voltage.

Did you replace a resistor?

sandor111

hero member

Activity: 616

Merit: 500

Testing at 1000 MHz now, seems stable with slightly higher voltage.

wolfey2014

sr. member

Activity: 378

Merit: 250

Quote from: simon66 on March 18, 2014, 04:42:05 PM

Quote from: wolfey2014 on March 18, 2014, 03:56:33 PM

Excellent!
Looks good to me! Wink

Have you tried 1000+MHz yet?
Got any pics of your handy work?
Can you restart that one miner that's clocked at 950 and screen capture where it shows it is in fact clocked at 950MHz? This will lend credence to your claim that you are actually clocking at 950 with zero red nonce's.
Much appreciated!

Yea sure, Here are some pics.

Here are the installation pic. I got one of those shitty USB cam Sad

I could had done a better job here but kinda wanted to really try this out.

I wouldn't recommend a novice to do this mod! Once minor slip and a cap or resistor will fly off!

This is what I did. I have some 30AUG, striped it and placed it on the 2 pads. I then placed my iron tip on the middle of the pad (This way, both sides will get hot at the same time) for like 3-5 seconds (at 30C).

Then when the connection was made, I just cut the extra wire with a small, but sharp x-acto knife.

Good luck!

UPDATE:

Ye, anything over 950MHz will not work for me. For some reason, minerd doesn't accept 975MHz(It starts up and sets it to 600MHz) and at 1000MHz, I just get HW errors.

Nice work!
Yeah, I know what you mean about steady hands. I've been soldering etc.for decades so I can practically do it blindfolded without any mess ups.

Are you using cpuminer Over Clock version?
I recon you would be since you can OC to 950. I don't think non OC version will allow that.
It will allow 900 though.

Cool cool cool! You've done it, Ram Jet! Cheesy

I wonder if adding a few tenths of a volt will allow for overclocking to 1GHz and higher....hmmmmm.....

Far out!
Wolfey2014

Andareed

member

Activity: 84

Merit: 14

volder

full member

Activity: 238

Merit: 100

simon66

sr. member

Activity: 423

Merit: 250

Quote from: wolfey2014 on March 18, 2014, 03:56:33 PM

Excellent!
Looks good to me! Wink

Have you tried 1000+MHz yet?
Got any pics of your handy work?
Can you restart that one miner that's clocked at 950 and screen capture where it shows it is in fact clocked at 950MHz? This will lend credence to your claim that you are actually clocking at 950 with zero red nonce's.
Much appreciated!

Yea sure, Here are some pics.

Here are the installation pic. I got one of those shitty USB cam Sad

I could had done a better job here but kinda wanted to really try this out.

I wouldn't recommend a novice to do this mod! Once minor slip and a cap or resistor will fly off!

This is what I did. I have some 30AUG, striped it and placed it on the 2 pads. I then placed my iron tip on the middle of the pad (This way, both sides will get hot at the same time) for like 3-5 seconds (at 30C).

Then when the connection was made, I just cut the extra wire with a small, but sharp x-acto knife.

Good luck!

UPDATE:

Ye, anything over 950MHz will not work for me. For some reason, minerd doesn't accept 975MHz(It starts up and sets it to 600MHz) and at 1000MHz, I just get HW errors.

wolfey2014

sr. member

Activity: 378

Merit: 250

Quote from: simon66 on March 18, 2014, 03:36:55 PM

Quote from: sandor111 on March 18, 2014, 11:31:18 AM

Quote from: RowanX on March 18, 2014, 05:28:53 AM

If I perform the mod, then I want to go back to mining at 600-850mhz again for some reason, that still works? (but still using 2W more?)

Of course, the power consumption is directly related to core voltage, so frequency does not matter much in that regard.

If you want to hard mod the voltage to 1.25v, and use different miner software:

I just completed the mod on 1 of my gridseeds. It's hashing away at --freq=950. I'm using an overclocked enabled cpuminer on the modded one (Bottom left), while the others are on the regular gridseed enabled one. Does this look right?

The bottom left one is the modded one, while the others are hashing away at --freq=850 (I've been mining for about 5mins now). I keep getting those 0: <<< LTC552000003d93cfcc12345678. Is that ok? I've been using cpuminer for a month now and it seems fine. Just wanted to combine my question in 1 post

Excellent!
Looks good to me! Wink

Have you tried 1000+MHz yet?
Got any pics of your handy work?
Can you restart that one miner that's clocked at 950 and screen capture where it shows it is in fact clocked at 950MHz? This will lend credence to your claim that you are actually clocking at 950 with zero red nonce's.
Much appreciated!

simon66

sr. member

Activity: 423

Merit: 250

Quote from: sandor111 on March 18, 2014, 11:31:18 AM

Quote from: RowanX on March 18, 2014, 05:28:53 AM

If I perform the mod, then I want to go back to mining at 600-850mhz again for some reason, that still works? (but still using 2W more?)

Of course, the power consumption is directly related to core voltage, so frequency does not matter much in that regard.

If you want to hard mod the voltage to 1.25v, and use different miner software:

I just completed the mod on 1 of my gridseeds. It's hashing away at --freq=950. I'm using an overclocked enabled cpuminer on the modded one (Bottom left), while the others are on the regular gridseed enabled one. Does this look right?

The bottom left one is the modded one, while the others are hashing away at --freq=850 (I've been mining for about 5mins now). I keep getting those 0: <<< LTC552000003d93cfcc12345678. Is that ok? I've been using cpuminer for a month now and it seems fine. Just wanted to combine my question in 1 post

HashFire

newbie

Activity: 17

Merit: 0

So if you can solder the risks are very minimal considering you can unsolder the bridge if you need to. I am running my test seed at the moment with BFGMiner, There should be no problems doing this mod with that right?

wolfey2014

sr. member

Activity: 378

Merit: 250

Topic: GridSeed 5-chip USB miner voltage mod - page 83. (Read 156991 times)