Topic: GridSeed 5-chip USB miner voltage mod - page 67. (Read 156991 times)

Solder bridges + resistor + pencil ?

Tell me your secret!

Awesome! I'll gonna try to beat that !

Here is my result:



1200MHz, 510 kH/s, 0.98% HW error rate and 28W power consumption. Stable since 2014. march 7.


BTC: 1gqdzx8iSwUGt3vaoEaPCjvrWo7zKn7PK

here is the windows compiled one
http://cryptomining-blog.com/1688-alternative-cgminer-3-7-2-for-scrypt-mining-on-gridseed-5-chip-gc3355-asics

the race for 500kH/s has begun

push these little suckers!

Guys, I was having trouble with USB 3.0 until I updated to the latest USB3.0 drivers and make sure Windows 7 had SP1 on it. Now it runs fine.
Only glitch I have now is that CGminer crashes when I first start it then close it and restart then its fine.

TC

Again, there are no bottleneck or performance issue.

thanks i checked them out bookmarked for fuure but for a few smd reistors im not paying nearly 10 euros shipping. i can get a couple of hunderd of different types shipping from over sea - uk - within a week for less. typical.

Excellent!
Are those figures done with the current mods I've reported?
Or have you done something else?
What are the frequency steps that can be done with cgminer 3.7.2?

Is it easy to install and configure compared to cpuminer?

I'm seeing much better results at my pool on this latest trial run.
24Hr of 444KH/s to 575KH/s

Thanks! Good work!
Wolfey2014

Great !....Good job, Nemercry...Super...

So...what are the latest tricks...mods for this...?

I want to share some pics with you guys. Yet not determined to be 24h stable. But actually more than 1100mhz, so i probably get some reward here ?

Gridseed porn (:])

OK.. Before I start modding some units... It would be nice to run these GDS miners stable for weeks with no crashing...but I cant even get 24hrs...

On linux (xunbutu 13.10)  I have noticed:

1. A 10 port hub into USB 3.0 > Much Quicker Crash than USB 2.0  (why?)
2. A 10 port hub daisy chained into a 10 port hub into USB > Crash and "zombie" errors after 4 hours
3. Running all night at 800mhz... half are OFF... then crash... WTF Am i doing wrong?  I can mod until I can make them stable.
4. Once I get a crash on one unit with "OFF" status...the whole cgminer kicks off and stops...

The most stable situation I have come up with so far:

One 10 port hub, into 1 MOBO at 750mhz. 

Someone please tell me WTF...

That isn't what the results indicate so far. If you're running at 1000 MHz, you should be hashing at around 420 kh/s. The stats so far indicate that even with no errors the performance isn't noticeably better than an unmodified unit. There could be a number of reasons for that.

That being said, you can't make the claim that there are no other issues when overclocking without knowing how every part of the system works. If any part of the system is being saturated or starved, increasing chip speed isn't going to help (and may even make things worse depending on the software/firmware/architecture).

Again, hashrate does NOT equal performance. Hashrate is a measure of how fast the chips are hashing, not how much work is actually being done. That's why you need to look at the whole system when you're trying to improve performance. More hashing power is pointless if the problem is actually IO, for example.

If after another 24 hours elapse and the performance is still about the same, then other parts of the system may need to be investigated for potential bottlenecks.

Thanks for your comments.
I'm giving very strong consideration to changing over to something else for the same reasons.
So I can see 'client side' results and have better control over 'overdrive' frequency
This has become more important now due to the mods I've made.

I don't recall it taking me very long to figure out and start using cpuminer. At that time, I was totally green and a complete 100% newb to this game. I started this from scratch! Had never mined in my life but within the first day I was up and running within a few hours. So that's why I fell in love with cpuminer,,,,so to speak.

I saw all the convolution going on with cg and bfg miner and it scared me away from trying it for more reasons than one. Just my personal preference of course. I know others out there love cg and bfg miner too. To each their own. That's how I see it.

My opinions are 'my' opinions and anyone should keep this in mind when reading my/others 'opinions'. Just different viewpoints being expressed by different 'beings' on here. This isn't the borg, eh? It's not a collective single mind, is it.....  Resistance is futile! Ahhhhhhhhhhhh! Kidding! 

I am happy to share my successes and failures along the way. That's life and I am happy and honored to share mine with you all.

Okay, let's rock on and see how things shake out.
I want this mod to work! Not just for me, but for everyone involved in the crypto-mining game!
We want it to grow, not contract! Crypto-mining is here to stay!

Wolfey2014

girnyau cgminer supports this frequencies.
700,  706,  713,  719,  725,  731,  738,  744, 750,  756,  763,  769,  775,  781,  788, 794, 800,  813,  825,  838,  850,  863,  875,  888, 900,  913,  925,  938,  950,  963,  975,  988, 1000, 1013, 1025, 1038, 1050, 1063, 1075, 1088, 1100, 1113, 1125, 1138, 1150, 1163, 1175, 1188, 1200, 1213, 1225, 1238, 1250, 1263, 1275, 1288, 1300, 1313, 1325, 1338, 1350, 1363, 1375, 1388, 1400

But no windows complied file can be found.

if you are in Europe,
i can mod it too

but i will need to send a seperate parcel for each 2 miners,
as DHL/DPAG insures only up to 500€

Use girnyau's cgminer, because it contains per chip statistics and per chip frequency adjustment in 12.5MHz steps. (And OC supported up to 1400MHz.)

@wolfey2014.
As in black square, not only the 24 hr hash rate is same as running at 850Mhz, but also the pay out is same for LTC. ~0.06/24 hr.
Coz i also mined past 2-3 days litecoin & my pay out is similar.

I respect you wolfey for doing great work, helping others.
But one thing i cannot understand why u hate cgminer or bfgminer & like cpuminer too much.

Since i read your past posts also, i came to know that it took you too much time to know how to run cpuminer, so now u dont want to run any other miner, as you fear, it will waste your time.
Running cgminer is very simple, i dont know abt bfgminer.
but cgminer requires zadig_2.1.0 usb driver. you can install the usb driver in a SEPARATE system & run just ONE miner in cgminer.

You can download zadig from here
http://zadig.akeo.ie/downloads/zadig_2.1.0.exe

& over clock supported up to 1300Mhz with increment of 25 Mhz cgminer here
http://cryptomining-blog.com/1662-updated-cgminer-3-7-2-oc-for-mining-on-gridseed-5-chip-gc3355-asics/
http://cryptomining-blog.com/wp-content/files/cgminer-3-7-2-gridseed-windows-oc.zip

To run cgminer in windows mode, this is i am using in bat file.
cgminer.exe --scrypt -o stratum+tcp://litecoinpool.org:3333 -u YOURWORKERNAME -p PASSWORD --gridseed-options=baud=115200,freq=850,chips=5 --hotplug 5

Run cgminer first & then connect miner to pc, so cgminer detects it correctly & mines.
I hope it will help you & also me & others as every one can see the hash rate in client side also & also HW errors, rejects.....

Thanks

I'm interested in this. Is there a roundup somewhere about what each mod does? I kinda lost track...

   My machine models and different from you, if your on my machine will have the effect?