GekkoScience 2Pac/Compac BM1384 Stickminer Official Support Thread - page 91.

vh

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Activity: 699

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Quote from: jmigdlc99 on June 08, 2017, 01:27:13 AM

Quote from: zumpbond2000 on June 08, 2017, 12:39:39 AM

Let me do a newbie question, please sorry if it's a too dumb question.

Would it be possible to change the firmware ( or something else ) of the 2Pac GekkoScience to mine with a different algorithm? Like Scrypt?

For firmware, not likely, the 2pac is an ASIC. Meaning its designed specifically for a single algorithm and this is hard coded into the hardware during manufacturing. They could release another version of the 2pac with different a algorithm but the one you already have will remain as is.

Quote from: in2tactics on June 08, 2017, 05:22:55 AM

No. That is not how firmware works and there is nothing else you can change on the 2PAC to change its algorithm.

Yes and yes. These Bitcoin ASICs are application specific to Bitcoins.

Long answer:

Logically bitcoin hashing involves a double SHA256: SHA(SHA(x)).

But most application specific one does a: SHA(m [+ s] + MODIFIEDSHA(w + n)) and checks for leading zero then returns n.
m=pool created midstate,
s=driver created partial sha (chip specific),
w=driver created leaftover from x,
n=chip created nonce

Which results in logically a SHA(SHA(x)) at the pool.

Short answer:

They are hard wired and not programmable in any way.

vh

hero member

Activity: 699

Merit: 666

Quote from: cjsummers82 on June 08, 2017, 09:52:17 AM

Quote from: zumpbond2000 on June 08, 2017, 12:32:31 AM

Quote from: cjsummers82 on June 07, 2017, 11:18:54 PM

I'm having some issues with a 2Pac, wondering if anyone has any ideas...

Was working fine; PC rebooted unexpectedly, and now I cannot get cgminer to recognize it. (have tried multiple PCs, fresh installs, etc.)
-Green light stays illuminated
-Windows recognizes device - shows in devices and printers
-when i run cgminer.exe -n, it finds device, and lists as GekkoScience 2PAC Bitcoin Miner
-when cgminer.exe is run either via batch or just launching the executable - always states 'No devices found' (cgminer build is confirmed working with other 2Pacs)
-have verified and re-installed winUSB driver via zadig 2.3
-checked with mutimeter - pulling 0.02a, 5v, 0.217w

any ideas or assistance would be greatly appreciated.

Thanks,
CJ

Hi, just to clarify! You have 3 Sticks, 2 are working in the same Computer and with the same Cgminer (VH's) version, but 1 stick is not working? is that so?

There were 2 devices running on this machine at one point, one of those devices is no longer being used. The single stick that I have currently was running on this PC without issue prior.
Thanks,
CJ

For some reason sounds like the chip is not getting enough power to run anymore.
Move around the PC and try a port on a different controller or use a powered hub (recommended).

cjsummers82

newbie

Activity: 22

Merit: 30

Quote from: zumpbond2000 on June 08, 2017, 12:32:31 AM

Quote from: cjsummers82 on June 07, 2017, 11:18:54 PM

I'm having some issues with a 2Pac, wondering if anyone has any ideas...

Was working fine; PC rebooted unexpectedly, and now I cannot get cgminer to recognize it. (have tried multiple PCs, fresh installs, etc.)
-Green light stays illuminated
-Windows recognizes device - shows in devices and printers
-when i run cgminer.exe -n, it finds device, and lists as GekkoScience 2PAC Bitcoin Miner
-when cgminer.exe is run either via batch or just launching the executable - always states 'No devices found' (cgminer build is confirmed working with other 2Pacs)
-have verified and re-installed winUSB driver via zadig 2.3
-checked with mutimeter - pulling 0.02a, 5v, 0.217w

any ideas or assistance would be greatly appreciated.

Thanks,
CJ

Hi, just to clarify! You have 3 Sticks, 2 are working in the same Computer and with the same Cgminer (VH's) version, but 1 stick is not working? is that so?

There were 2 devices running on this machine at one point, one of those devices is no longer being used. The single stick that I have currently was running on this PC without issue prior.
Thanks,
CJ

in2tactics

hero member

Activity: 578

Merit: 501

Quote from: zumpbond2000 on June 08, 2017, 12:39:39 AM

Let me do a newbie question, please sorry if it's a too dumb question.

Would it be possible to change the firmware ( or something else ) of the 2Pac GekkoScience to mine with a different algorithm? Like Scrypt?

No. That is not how firmware works and there is nothing else you can change on the 2PAC to change its algorithm.

jmigdlc99

sr. member

Activity: 784

Merit: 282

Quote from: zumpbond2000 on June 08, 2017, 12:39:39 AM

Let me do a newbie question, please sorry if it's a too dumb question.

Would it be possible to change the firmware ( or something else ) of the 2Pac GekkoScience to mine with a different algorithm? Like Scrypt?

For firmware, not likely, the 2pac is an ASIC. Meaning its designed specifically for a single algorithm and this is hard coded into the hardware during manufacturing. They could release another version of the 2pac with different a algorithm but the one you already have will remain as is.

zumpbond2000

newbie

Activity: 19

Merit: 0

Let me do a newbie question, please sorry if it's a too dumb question.

Would it be possible to change the firmware ( or something else ) of the 2Pac GekkoScience to mine with a different algorithm? Like Scrypt?

zumpbond2000

newbie

Activity: 19

Merit: 0

Quote from: cjsummers82 on June 07, 2017, 11:18:54 PM

I'm having some issues with a 2Pac, wondering if anyone has any ideas...

Was working fine; PC rebooted unexpectedly, and now I cannot get cgminer to recognize it. (have tried multiple PCs, fresh installs, etc.)
-Green light stays illuminated
-Windows recognizes device - shows in devices and printers
-when i run cgminer.exe -n, it finds device, and lists as GekkoScience 2PAC Bitcoin Miner
-when cgminer.exe is run either via batch or just launching the executable - always states 'No devices found' (cgminer build is confirmed working with other 2Pacs)
-have verified and re-installed winUSB driver via zadig 2.3
-checked with mutimeter - pulling 0.02a, 5v, 0.217w

any ideas or assistance would be greatly appreciated.

Thanks,
CJ

Hi, just to clarify! You have 3 Sticks, 2 are working in the same Computer and with the same Cgminer (VH's) version, but 1 stick is not working? is that so?

cjsummers82

newbie

Activity: 22

Merit: 30

I'm having some issues with a 2Pac, wondering if anyone has any ideas...

Was working fine; PC rebooted unexpectedly, and now I cannot get cgminer to recognize it. (have tried multiple PCs, fresh installs, etc.)
-Green light stays illuminated
-Windows recognizes device - shows in devices and printers
-when i run cgminer.exe -n, it finds device, and lists as GekkoScience 2PAC Bitcoin Miner
-when cgminer.exe is run either via batch or just launching the executable - always states 'No devices found' (cgminer build is confirmed working with other 2Pacs)
-have verified and re-installed winUSB driver via zadig 2.3
-checked with mutimeter - pulling 0.02a, 5v, 0.217w

any ideas or assistance would be greatly appreciated.

Thanks,
CJ

hurricandave

legendary

Activity: 966

Merit: 1003

Quote from: Biodom on June 06, 2017, 04:19:23 PM

Quote from: vh on June 06, 2017, 10:33:38 AM

Quote from: hurricandave on June 06, 2017, 12:32:16 AM

I live in Houston and Compaq is still in business here. albeit private stuff only, its the Dell warranty repair center contractor for this region as well if you know how to back track the return shipping label.

Retailers are dropping left and right around these parts. Without a storefront most name-brands will be similar in about 5-10 years.

that's true, are you from around here?
In any case, I blame it on Amazon and Houstonstan's heat.
Blue apron delivers nice produce and recipes-close to restaurant's quality, so no need to eat out and Amazon with prime kills the rest of retailers slowly.

Yea, I'm by Rice for now but moving to Stink-a-Dena end of July.

Compaq was/is always never able to compete with SuperMicro in the industrial sector and just when they had a glimmer of relevance in the retail world they got shot down by Gateway. Always a Day late and a Dollar short of success.

Biodom

legendary

Activity: 3808

Merit: 4078

Quote from: vh on June 06, 2017, 10:33:38 AM

Quote from: hurricandave on June 06, 2017, 12:32:16 AM

I live in Houston and Compaq is still in business here. albeit private stuff only, its the Dell warranty repair center contractor for this region as well if you know how to back track the return shipping label.

Retailers are dropping left and right around these parts. Without a storefront most name-brands will be similar in about 5-10 years.

that's true, are you from around here?
In any case, I blame it on Amazon and Houstonstan's heat.
Blue apron delivers nice produce and recipes-close to restaurant's quality, so no need to eat out and Amazon with prime kills the rest of retailers slowly.

vh

hero member

Activity: 699

Merit: 666

Quote from: hurricandave on June 06, 2017, 12:32:16 AM

I live in Houston and Compaq is still in business here. albeit private stuff only, its the Dell warranty repair center contractor for this region as well if you know how to back track the return shipping label.

Retailers are dropping left and right around these parts. Without a storefront most name-brands will be similar in about 5-10 years.

hurricandave

legendary

Activity: 966

Merit: 1003

I live in Houston and Compaq is still in business here. albeit private stuff only, its the Dell warranty repair center contractor for this region as well if you know how to back track the return shipping label.

vh

hero member

Activity: 699

Merit: 666

Quote from: ZedZedNova on June 06, 2017, 12:09:10 AM

...
Compaq! Grin

compaq mining bitcoin Huh

ZedZedNova

sr. member

Activity: 475

Merit: 265

Ooh La La, C'est Zoom!

Quote from: vh on June 05, 2017, 04:45:06 PM

"compaq" ???The error sais unrecognised because it doesn't know what that is.

Compaq!

sidehack

legendary

Activity: 3346

Merit: 1858

Curmudgeonly hardware guy

People calling them "compaq" has been frustrating me for two years.

buddyleex

newbie

Activity: 19

Merit: 0

Quote from: vh on June 05, 2017, 04:45:06 PM

"compaq"

The error sais unrecognised because it doesn't know what that is.

Yeah....I'm not proud of myself right now. Everything I see that I think of Compaq computers.

vh

hero member

Activity: 699

Merit: 666

"compaq"

The error sais unrecognised because it doesn't know what that is.

buddyleex

newbie

Activity: 19

Merit: 0

Compac != Compaq

Found issue should have looked closer for a bit longer....

sidehack

legendary

Activity: 3346

Merit: 1858

Curmudgeonly hardware guy

If you got it from eyeboot, your first point of contact for service is eyeboot.

That goes for anyone who bought from a reseller. That person got your money so that person has an obligation to you as a customer. If the seller drops the ball I'll pick it up but the seller bears the responsibility of his own customer service so take full advantage of that. Honestly most of 'em are making a lot more profit than I am so they definitely owe it to their customers to have good customer service.

dijib

newbie

Activity: 7

Merit: 0

Voltage issue.
I still am not able to get this thing to a voltage over 0.2v, not exactly sure what i did. Nothing has been broken off of the Stick, the only the i can think of is i could have hit another contact point on the board (see picture)
Is there any way i can get this fixed sidehack or like exchanged or anything for a fee? i got this thing from eyeboot, and when i received it the voltages were reading normal so its definitely something i have done to it.

https://i.imgur.com/NDiWJ3h.jpg

Topic: GekkoScience 2Pac/Compac BM1384 Stickminer Official Support Thread - page 91. (Read 177300 times)