Pages:
Author

Topic: [ANN] Technobit HEX8A1 -240 GHs Coincraft A1 board- Finished production - page 30. (Read 72425 times)

hero member
Activity: 490
Merit: 500
FULL STEAM AHEAD! Cool



The numbers are still settling down, not this good in reality, but yeah looks like the 5V fan trick is working!




hero member
Activity: 490
Merit: 500
So far so good. I'll leave it running like this until Monday morning. But it looks like the ThermalTake 730W PSU is the problem. Either it cannot handle 450-500W on it's 684W rail, or it's detecting both miners together as some kinds of fault. Looks like I'll be back at Scan in the morning for another PSU.  Angry Any suggestions? Anyone got 2x Hex8A1 running on one PSU? I'm thinking Corsair 750W this time.
Do you have this power supply?
http://www.techpowerup.com/reviews/Thermaltake/SP-730P/1.html
If so, it is a pretty old group regulated one. The voltages on it will go a little wonky if you're pulling a lot of current from the 12V rail and nothing from the 5V rail.

Hi, similar name, but it is a newer model, semi modular design. This one...
http://www.scan.co.uk/products/730w-thermaltake-smart-se-730-hybrid-modular-80plus-bronze-sli-crossfire-eps-12v-quiet-140mm-fan-atx
What could I put on the 5v rail to make it happy? I would give it a try. Maybe an old hard drive on a molex cable?

Right put a Sunon 4500rpm fan on a 5v molex cable (they are quiet at 5v!). Lets see how long it all runs. Thanks for that idea.  Cool
hero member
Activity: 490
Merit: 500
So far so good. I'll leave it running like this until Monday morning. But it looks like the ThermalTake 730W PSU is the problem. Either it cannot handle 450-500W on it's 684W rail, or it's detecting both miners together as some kinds of fault. Looks like I'll be back at Scan in the morning for another PSU.  Angry Any suggestions? Anyone got 2x Hex8A1 running on one PSU? I'm thinking Corsair 750W this time.
Do you have this power supply?
http://www.techpowerup.com/reviews/Thermaltake/SP-730P/1.html
If so, it is a pretty old group regulated one. The voltages on it will go a little wonky if you're pulling a lot of current from the 12V rail and nothing from the 5V rail.

Similar name PSU, but it is a newer model, semi modular design. This one here...
http://www.scan.co.uk/products/730w-thermaltake-smart-se-730-hybrid-modular-80plus-bronze-sli-crossfire-eps-12v-quiet-140mm-fan-atx
What could I put on the 5v rail to make it happy? I will give it a try. Maybe an old hard drive on a molex cable?
legendary
Activity: 1274
Merit: 1004
So far so good. I'll leave it running like this until Monday morning. But it looks like the ThermalTake 730W PSU is the problem. Either it cannot handle 450-500W on it's 684W rail, or it's detecting both miners together as some kinds of fault. Looks like I'll be back at Scan in the morning for another PSU.  Angry Any suggestions? Anyone got 2x Hex8A1 running on one PSU? I'm thinking Corsair 750W this time.
Do you have this power supply?
http://www.techpowerup.com/reviews/Thermaltake/SP-730P/1.html
If so, it is a pretty old group regulated one. The voltages on it will go a little wonky if you're pulling a lot of current from the 12V rail and nothing from the 5V rail.
hero member
Activity: 490
Merit: 500
Ok taped out the USB cables but still it crashes...

The complete Hex family...


So ruled out leaking USB power now.

So I try and run Bad Boy & Good Girl together to rule out Hex16B cannot run with Hex8A1


Nope not that either, they both crashed.

So now I'm running Bad Boy on it's own with the family. This is to rule in the ThermalTake 730W PSU is the problem not Bad Boy.


So far so good. I'll leave it running like this until Monday morning. But it looks like the ThermalTake 730W PSU is the problem. Either it cannot handle 450-500W on it's 684W rail, or it's detecting both miners together as some kinds of fault. Looks like I'll be back at Scan in the morning for another PSU.  Angry Any suggestions? Anyone got 2x Hex8A1 running on one PSU? I'm thinking Corsair 750W this time.

Ok got Bad Boy on it's own PSU and TP-Link and now it's hashing! 220GH/260W
Some hardware errors, that's probably the caps with bad legs. Still has green and orange light.

Bad Boy hates company!
I'll try and tape out the +5V and Ground in the USB cable and see if that makes him play nice with the others!

Good to see that one is still working Gator  Grin

So I see you did add 3 arctic f9 to the good girl, right? Grin
Are they sufficient enough and not that noisy?

Both of them work okay with 3x Arctic F9 fans at 220/880 they don't feel any hotter than a cold cup of tea and you have a pleasant whoosh like leaves blowing in the wind to listen to instead of a vacuum cleaner. They're in a cool North facing room, with no heating on, and no windows open. Bad Boy draws 40W more than Good Girl but does give 20GH extra. He feels like a slightly warmer cup of "hurry up and drink before it goes cold" tea. Cheesy

If anyone wants to swap a working Hex8A1 for my 6x Hex16B (F9 Fanned 270GH/415W) let me know. I'm after GH/W more than pure hashing power.
I'd be happy to give up 60GH to save 200W.
newbie
Activity: 10
Merit: 0
i think i will stay with this settings, no errors, no rejects and a quite cool heatsink

--hexminer8-chip-mask 255 --hexminer8-voltage 940 --hexminer8-options 8:220

http://www.bilder-upload.eu/thumb/adaf12-1392582335.png
member
Activity: 77
Merit: 10
Ok got Bad Boy on it's own PSU and TP-Link and now it's hashing! 220GH/260W
Some hardware errors, that's probably the caps with bad legs. Still has green and orange light.


Bad Boy hates company!
I'll try and tape out the +5V and Ground in the USB cable and see if that makes him play nice with the others!


Good to see that one is still working Gator  Grin

So I see you did add 3 arctic f9 to the good girl, right? Grin
Are they sufficient enough and not that noisy?
legendary
Activity: 1610
Merit: 1000
Ok got Bad Boy on it's own PSU and TP-Link and now it's hashing! 220GH/260W
Some hardware errors, that's probably the caps with bad legs. Still has green and orange light.



Bad Boy hates company!
I'll try and tape out the +5V and Ground in the USB cable and see if that makes him play nice with the others!


Gator I am repeating this constantly over and over Wink give it more voltage to reduce hw errors they are pretty good now
hero member
Activity: 490
Merit: 500
Ok got Bad Boy on it's own PSU and TP-Link and now it's hashing! 220GH/260W
Some hardware errors, that's probably the caps with bad legs. Still has green and orange light.



Bad Boy hates company!
I'll try and tape out the +5V and Ground in the USB cable and see if that makes him play nice with the others!

legendary
Activity: 1610
Merit: 1000
I see, so different PSU on one host.

Yeah, I figure out when powering 6x Hex16b, if you use a power protected hub, multiple PSU works fine.

I noticed some lose Capacitor legs on this bad Hex8A1. Maybe they got broken in packing or shipping but the one on the right looks like a horrible solder joint. Not sure if this would stop it hashing though. I'm not an expert at electronics. Wish I was!

Look like the voltage stand on 800mv even with 1000mv setting.

Actually my board also had same broken capacitor leg but cause by my self  Cheesy.
But i just join it with his friend there( the one you point by single red arrow)

Did yours stop working with broken capacitor leg?
I pushed the legs to touch the nearest resistor. It powered up with it's sister 220/880 ran for 5 mins, then crashed the power supply.

The bad one had green and orange light as always. The good one had two green lights and a red light after crashing.
After rebooting the good one went back to two green lights and started working. The bad one refused to reboot again.

I think there is some charge building up in the bad one after 5mins which causes the PSU to trip failsafe, then that charge is still held for some time, which stops it rebooting back up, but a day later it will.

I'm going to give it one last try and run it on it's own TP-Link. How do I upgrade an old TP-Link from 0_1_0 to 0_2_0? Do I flash the "factory.bin" file or do I use the "sysupgrade.bin" file. It's not in factory condition anymore, so I guess it's an upgrade, but I've only seen people mention the factory file?
Syspgrade is ok. Make sure after upgrade you fill all web boxes and leave nothing empty in cgminer config except pools if you are using less than three
hero member
Activity: 490
Merit: 500
I see, so different PSU on one host.

Yeah, I figure out when powering 6x Hex16b, if you use a power protected hub, multiple PSU works fine.

I noticed some lose Capacitor legs on this bad Hex8A1. Maybe they got broken in packing or shipping but the one on the right looks like a horrible solder joint. Not sure if this would stop it hashing though. I'm not an expert at electronics. Wish I was!

Look like the voltage stand on 800mv even with 1000mv setting.

Actually my board also had same broken capacitor leg but cause by my self  Cheesy.
But i just join it with his friend there( the one you point by single red arrow)

Did yours stop working with broken capacitor leg? I was really careful with unpacking and handling, I know caps are always the weakest electronic part.
I do have a soldering iron, if I knew what needed soldering to what I could maybe fix it, but it's unclear where these legs were attached.
I pushed the legs to touch the nearest micro resistor. It powered up with it's sister 220/880 ran for 5 mins, then crashed the power supply.

The bad one had green and orange light as always. The good one had two green lights and a red light after crashing.
After rebooting the good one went back to two green lights and started working. The bad one refused to reboot again.

I think there is some charge building up in the bad one after 5mins which causes the PSU to trip failsafe, then that charge is still held for some time, which stops it rebooting back up.

I'm going to give it one last try and run it on it's own TP-Link at 260/1000 next time it works. How do I upgrade an old TP-Link from 0_1_0 to 0_2_0? Do I flash the "factory.bin" file or do I use the "sysupgrade.bin" file. It's not in factory condition anymore, so I guess it's an upgrade, but I've only seen people mention the factory file?

Bad Boy & Good Girl... one hashes 210GH/220W quietly... the other just don't hash for more than a few minutes!
legendary
Activity: 1190
Merit: 1000

Thx for your answers guys Smiley
So Zich, nice settings, do you use any extra cooling or can you touch your board longer than 5 sec? Grin

Nope  Grin
The heatsink is very hot to touch  Cheesy

does the miner have a overheating shutdown?

No, there is no temperature sensor on board.
You need to set the board at appropriated setting which don't make the board over temperature  Cheesy
the question is what isn't too hot? ^^

you can decide it your self  Roll Eyes
newbie
Activity: 10
Merit: 0

Thx for your answers guys Smiley
So Zich, nice settings, do you use any extra cooling or can you touch your board longer than 5 sec? Grin

Nope  Grin
The heatsink is very hot to touch  Cheesy

does the miner have a overheating shutdown?

No, there is no temperature sensor on board.
You need to set the board at appropriated setting which don't make the board over temperature  Cheesy
the question is what isn't too hot? ^^
legendary
Activity: 1190
Merit: 1000

Thx for your answers guys Smiley
So Zich, nice settings, do you use any extra cooling or can you touch your board longer than 5 sec? Grin

Nope  Grin
The heatsink is very hot to touch  Cheesy

does the miner have a overheating shutdown?

No, there is no temperature sensor on board.
You need to set the board at appropriated setting which don't make the board over temperature  Cheesy
newbie
Activity: 10
Merit: 0

Thx for your answers guys Smiley
So Zich, nice settings, do you use any extra cooling or can you touch your board longer than 5 sec? Grin

Nope  Grin
The heatsink is very hot to touch  Cheesy

does the miner have a overheating shutdown?
legendary
Activity: 1190
Merit: 1000

Thx for your answers guys Smiley
So Zich, nice settings, do you use any extra cooling or can you touch your board longer than 5 sec? Grin

Nope  Grin
The heatsink is very hot to touch  Cheesy
member
Activity: 77
Merit: 10
After playing with various setting, this is my final result  Grin



Locking good zich Smiley
congrats

Yeah, thanks  Grin
After two days in same room with HEX8, i become familiar with the noise  Cheesy

Thx for your answers guys Smiley
So Zich, nice settings, do you use any extra cooling or can you touch your board longer than 5 sec? Grin
legendary
Activity: 1190
Merit: 1000
After playing with various setting, this is my final result  Grin



Locking good zich Smiley
congrats

Yeah, thanks  Grin
After two days in same room with HEX8, i become familiar with the noise  Cheesy
legendary
Activity: 1610
Merit: 1000
After playing with various setting, this is my final result  Grin



Locking good zich Smiley
congrats
legendary
Activity: 1190
Merit: 1000
After playing with various setting, this is my final result  Grin


Pages:
Jump to: