[ANN] Technobit HEX8A1 -240 GHs Coincraft A1 board- Finished production

[Gator-hex]

You should be able to stick 2x 92mm fans on top with a lower/quieter RPM in that case.

I will do that for sure, at the moment it is not bearable.
two 92mm ~2000rpm on top, and the bottom one will be replaced too, just got to find the right ones

Are they both Sunon Maglev PF92251V1-000U-S99 DC 12v 4.7W?

It's 127.43m3/h 75cfm. I hope they didn't put a 110cfm on the top!

I'm hoping the bottom one is slower too! Dunno how I'd replace 75cfm to that heatsink!

[stiffla]

Are they both Sunon Maglev PF92251V1-000U-S99 DC 12v 4.7W?

It's 127.43m3/h 75cfm.

I'm hoping the bottom one is slower! Dunno how I'd replace 75cfm to that heatsink!

Maaan, it will be a challenge to replace them with adequate fans

[Zich]

That's was huge heatsink   . Seem like use 2 different type FAN, right stiffla?
Can not be sure until the parcel arrived.

[Gator-hex]

Are they both Sunon Maglev PF92251V1-000U-S99 DC 12v 4.7W?

It's 127.43m3/h 75cfm.

I'm hoping the bottom one is slower! Dunno how I'd replace 75cfm to that heatsink!

Maaan, it will be a challenge to replace them with adequate fans

Top one is easy if it's 75cfm replace it with 2x 43cfm = 86cfm.

If the bottom fan is Sunon 2v 2500rpm, leave it as is. If it's faster we'll have to drop the hash speed to get it quiet.

[stiffla]

That's was huge heatsink   . Seem like use 2 different type FAN, right stiffla?
Can not be sure until the parcel arrived.

yeah right, the top one is thicker and I think much louder.
I have deported them now to my toilet with an slightly opened window, but they are still to loud in there . Already waiting for neighbours to complain

[dspbuy]

When are you going to return the money you stole from me Marto? Do you think I will just forget about it?

[loshia]

Can a TP-Link run both Hex16B and Hex8A1 at the same time? Which do u set as default then?

Yes gator. It can. Set it to hex8 but watch it on startup if it will detect all boards properly. If not just reboot it

[marto74]

When are you going to return the money you stole from me Marto? Do you think I will just forget about it?

order ref ?

[Wotan777]

Marto please answer to my friend ^^

@Marto74

(1) I would like to ask for a refund for my order that is more than 2 months old now.
Order reference: UICAWGFJD

OR I would like to get a HEX8A1 card as a form of consolation

(2) Why don't you react to messages sent to technobit.eu?

Best regards,
  W

Marto, please answer.
Order ref is UICAWGFJD

[dspbuy]

When are you going to return the money you stole from me Marto? Do you think I will just forget about it?

order ref ?

ABOIPMBVS

Please do not send me the miner now. It is too late. I have made the order more than 4 months ago, so the miner is now completely worthless (due to drop in BTC value and increase of mining difficulty). I would like to have my money back please (you may send me in BTC).

[foobar31]

This time i am very satisfied with speedy 
The parcel already cleared from custom. I just call DHL office & they said they will deliver the parcel tomorrow 

Congrats Zich:)

Thanks loshia 
Going to prepare new PSU tonight 

Hi Zich,

Can I ask which PSU/model you're using ?

Thanks

[Zich]

This time i am very satisfied with speedy  
The parcel already cleared from custom. I just call DHL office & they said they will deliver the parcel tomorrow  

Congrats Zich:)

Thanks loshia  
Going to prepare new PSU tonight  

Hi Zich,

Can I ask which PSU/model you're using ?

Thanks

Of course, i am using OCZ ZT 750


Sorry for late reply, my board just arrived. So a bit busy here  

[Zich]

Here some picture of my board that just arrived  






And fan picture, i bet Gator-hex will be surprises  
Bottom fan is "SUPER FAN" SUNON PMD1209PMB1-A rated at 12,5 W, 4900 rpm & 57 dBA





Upper fan is SUNON PF92251V1-000U-S99 rated at 4,7 W, 4500 rpm & 46 dBA





After trying some setting:

  Hex8A1 Chip Frequency : 250              
  Hex8A1 Chip Core Voltage : 980
  Hex8A1 Set ASIC difficulty to one : 1

Ampere usage on 12 V rail is 30 A

[iFA88]

My board is just arrived too! First screenshot from hashing :

[Zich]

My board is just arrived too! First screenshot from hashing :

Wooo, you had big PSU there  

[stiffla]

Here some picture of my board that just arrived  

And fan picture, i bet Gator-hex will be surprises  
Bottom fan is "SUPER FAN" SUNON PMD1209PMB1A rated at 12,5 W, 4900 rpm & 57 dBA



Upper fan is SUNON PF92251V1-000U-S99 rated at 4,7 W, 4500 rpm & 46 dBA


After trying some setting:

  Hex8A1 Chip Frequency : 250              
  Hex8A1 Chip Core Voltage : 980
  Hex8A1 Set ASIC difficulty to one : 1

Ampere usage on 12 V rail is 30 A

Alright, so the bottom one is the pain in the ass
Do you think about any replacement options? I'm still on the looks for good fans right now

BTW: 30 A are quite ok, so you get approximately 1,44W/GH with this settings ,right? (i have avg 250GH/s)

[Zich]

Here some picture of my board that just arrived  

And fan picture, i bet Gator-hex will be surprises  
Bottom fan is "SUPER FAN" SUNON PMD1209PMB1A rated at 12,5 W, 4900 rpm & 57 dBA



Upper fan is SUNON PF92251V1-000U-S99 rated at 4,7 W, 4500 rpm & 46 dBA


After trying some setting:

  Hex8A1 Chip Frequency : 250              
  Hex8A1 Chip Core Voltage : 980
  Hex8A1 Set ASIC difficulty to one : 1

Ampere usage on 12 V rail is 30 A

Alright, so the bottom one is the pain in the ass
Do you think about any replacement options? I'm still on the looks for good fans right now

BTW: 30 A are quite ok, so you get approximately 1,44W/GH with this settings ,right? (i have avg 250GH/s)

Even with that 4900 rpm, the heatsink is very hot. So i don't want to replace the fan 

That is my rough measurement since i had to measure on 3 wire 
So around 1,44 - 1,5 W/GH.

[Gator-hex]

OMG guys the fans are worse than I thought! MARTO!  

BOTTOM FANS = Sunon PF92251V1-000U-G99/S99 = 92mm 12V 4.7W 4500RPM 46dBA 75CFM

TOP FAN = Sunon PMD1209PMB1-A(2).GN = 92mm 12V 12.5W 4900RPM 57.6dBA 120.2CFM

The thing is HUGE! Here it is next to a Hex16B!



I don't have time to mess with it today because it's valentines day and a couple of family birthdays too!

All the parts I need have arrived except the PSUs I had on back order.

I'll have to go hunting for a PSU tomorrow, can anyone confirm 850mV it runs < 264W?
I might just pick up a cheap 550W 44A to tide me over. It's using 17.2W just for fans! I'll get that down to 3x 2W hopefully.

On a serious note guys these fans are dangerous to little fingers. Keeps kids away/get fan guards. They only cost a few dollars.

[loshia]

Nice pictures guy's
Congrats to all
Spacial thanks to Zih for bringing light to power consumption!

Have fun and happy nonstop mining

[marto74]

Sorry about that Gator.
Specially for customers like you we are finishing now 4 chip version with normal heat sink and fans.
I hope it will be stable @ 130 range  with nice 2-3w fans.
The damn chip is sooo power hungry

Update in Monday

OMG guys the fans are worse than I thought! MARTO!  

BOTTOM FANS = Sunon PF92251V1-000U-G99/S99 = 92mm 12V 4.7W 4500RPM 46dBA 75CFM

TOP FAN = Sunon PMD1209PMB1-A(2).GN = 92mm 12V 12.5W 4900RPM 57.6dBA 120.2CFM

The thing is HUGE! Here it is next to a Hex16B!



I don't have time to mess with it today because it's valentines day and a couple of family birthdays too!

All the parts I need have arrived except the PSUs I had on back order.

I'll have to go hunting for a PSU tomorrow, can anyone confirm 850mV it runs < 264W?
I might just pick up a cheap 550W 44A to tide me over. It's using 17.2W just for fans!

On a serious note guys these fans are dangerous to little fingers. Keeps kids away/get fan guards. They only cost a few dollars.