HashFast announces specs for new ASIC: 400GH/s

[-ck]

I would have figured it was clear it was a sierra.

Only option was:
"hfa-hash-clock" : "645"

[1714881324]

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[1714881324]

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[Minor Miner]

I would have figured it was clear it was a sierra.
Only option was:
"hfa-hash-clock" : "645"

I don't suppose you have a Cointerra there that you can fix too?

[SolarSilver]

I would have figured it was clear it was a sierra.

Hey con,

do you have physical access to the Sierra or just online access?

Can you check what power supply is inside this Sierra?

Are they using the Seasonic SS-1000XP Active PFC F3 Power Supply Unit to drive 2 boards?

https://bitcointalk.org/index.php?topic=430208.msg4754197#msg4754197

[minternj]

Con can answer but looks like its just 2 power supplies inside the sierra.
http://hashfast.com/shop/sierra-fourth-batch/

[Coin_Master]

I would have figured it was clear it was a sierra.

Hey con,

do you have physical access to the Sierra or just online access?

Can you check what power supply is inside this Sierra?

Are they using the Seasonic SS-1000XP Active PFC F3 Power Supply Unit to drive 2 boards?

https://bitcointalk.org/index.php?topic=430208.msg4754197#msg4754197

He said he put a power meter on it, of course he has physical access.

I've put the power meter on it, and overclocked to 645 mine measures a solid 1.4TH @ 1480W on 240V at the wall. Bear in mind I have a slightly modified one with fans running flat out so it will probably be slightly less, but not that much less.

Come on guys, these questions are getting ridiculous.

[ninjarobot]

My BJ hashes @ 422 GH/s consuming 407W at the wall using stock settings:

Code:

#!/bin/bash
sleep 10
/usr/bin/screen -dmS miner /opt/minepeon/bin/cgminer -c /opt/minepeon/etc/miner.conf --hfa-hash-clock 550

Even at stock it is not very stable as it has gone belly up 2 times over the last 3 days. It requires a manual reboot to get it running again. Minepeon graphs also go crazy when this happens:

[minternj]

You might want to try the new version of cgminer. However, i am on the old version on the raspi and see more stability than yours.

[kikaha]

Power supply inside a Sierra is a Seasonic Model (X-850) SS-850KM Active PFC F3 power supply rated at 850 Watts.  There are two.  One supply goes to the left PCIE power inputs of all 3 boards and the other goes to the right PCIE power inputs of each board.  I will post some photos later on today, since after verifying that it mined, I took it apart to see how everything was connected.

I would have figured it was clear it was a sierra.

Hey con,

do you have physical access to the Sierra or just online access?

Can you check what power supply is inside this Sierra?

Are they using the Seasonic SS-1000XP Active PFC F3 Power Supply Unit to drive 2 boards?

https://bitcointalk.org/index.php?topic=430208.msg4754197#msg4754197

[gateway]

My BJ hashes @ 422 GH/s consuming 407W at the wall using stock settings:

Code:

#!/bin/bash
sleep 10
/usr/bin/screen -dmS miner /opt/minepeon/bin/cgminer -c /opt/minepeon/etc/miner.conf --hfa-hash-clock 550

I highly recommend using the latest cgminer 3.11x with these devices, quite a bit of work to the hf driver was done.  Also you do not need to supply the --hfa-hash-clock if you are just going to run at 550 since thats default, a good number to try is 610, of course will use more power but should get you more hashing and not many if all hw errors..

[minternj]

Power supply inside a Sierra is a Seasonic Model (X-850) SS-850KM Active PFC F3 power supply rated at 850 Watts.  There are two.  One supply goes to the left PCIE power inputs of all 3 boards and the other goes to the right PCIE power inputs of each board.  I will post some photos later on today, since after verifying that it mined, I took it apart to see how everything was connected.

I would have figured it was clear it was a sierra.

Hey con,

do you have physical access to the Sierra or just online access?

Can you check what power supply is inside this Sierra?

Are they using the Seasonic SS-1000XP Active PFC F3 Power Supply Unit to drive 2 boards?

https://bitcointalk.org/index.php?topic=430208.msg4754197#msg4754197

Kikaha, can you tell me if one of the boards have the front panel pins connected ? If so can you tell me what order they are in? I've circled below.

[kikaha]

Mine were not connected, but I determined that they are for status LEDs.  Top pins toward the outside of the board are power and inside pins are ground.  From the outside of the board going inward, the first column is power status.  I am guessing, since it goes high when powered on and takes a long to turn off, guessing it is all of the caps.  The next one in is some sort of status.  It seems to blink randomly.  I am guessing it is reporting transactions between the mining ASIC and cgminer.  The rest of the pins do not see to do anything, that I could tell.  I have a friend who got his Baby Jet and these same two sets of pins are connected to the white LEDs on the top of the Baby Jet sticker on the front panel.

Power supply inside a Sierra is a Seasonic Model (X-850) SS-850KM Active PFC F3 power supply rated at 850 Watts.  There are two.  One supply goes to the left PCIE power inputs of all 3 boards and the other goes to the right PCIE power inputs of each board.  I will post some photos later on today, since after verifying that it mined, I took it apart to see how everything was connected.

I would have figured it was clear it was a sierra.

Hey con,

do you have physical access to the Sierra or just online access?

Can you check what power supply is inside this Sierra?

Are they using the Seasonic SS-1000XP Active PFC F3 Power Supply Unit to drive 2 boards?

https://bitcointalk.org/index.php?topic=430208.msg4754197#msg4754197

Kikaha, can you tell me if one of the boards have the front panel pins connected ? If so can you tell me what order they are in? I've circled below.

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

[minternj]

Mine were not connected, but I determined that they are for status LEDs.  Top pins toward the outside of the board are power and inside pins are ground.  From the outside of the board going inward, the first column is power status.  I am guessing, since it goes high when powered on and takes a long to turn off, guessing it is all of the caps.  The next one in is some sort of status.  It seems to blink randomly.  I am guessing it is reporting transactions between the mining ASIC and cgminer.  The rest of the pins do not see to do anything, that I could tell.  I have a friend who got his Baby Jet and these same two sets of pins are connected to the white LEDs on the top of the Baby Jet sticker on the front panel.

Just what I was looking for , thanks!

[ninjarobot]

I highly recommend using the latest cgminer 3.11x with these devices, quite a bit of work to the hf driver was done.  Also you do not need to supply the --hfa-hash-clock if you are just going to run at 550 since thats default, a good number to try is 610, of course will use more power but should get you more hashing and not many if all hw errors..

Thanks. I turned on automatic HF updates again and after a reboot I see I now have a new version: cgminer3.9.0h2

It is still not 3.11.x but I'll leave the 'h2' version running for a bit to see if that improves stability. I did notice it caused my hashrate to drop slightly from 422 to 417. I assume HF will push 3.11 automatically once it is ready for primetime. Will post future updates in the HF user thread as not to spam this one.

[gateway]

I highly recommend using the latest cgminer 3.11x with these devices, quite a bit of work to the hf driver was done.  Also you do not need to supply the --hfa-hash-clock if you are just going to run at 550 since thats default, a good number to try is 610, of course will use more power but should get you more hashing and not many if all hw errors..

Thanks. I turned on automatic HF updates again and after a reboot I see I now have a new version: cgminer3.9.0h2

It is still not 3.11.x but I'll leave the 'h2' version running for a bit to see if that improves stability. I did notice it caused my hashrate to drop slightly from 422 to 417. I assume HF will push 3.11 automatically once it is ready for primetime. Will post future updates in the HF user thread as not to spam this one.

Yep cheers.. I also started a thread for Sierra owners here.. https://bitcointalk.org/index.php?topic=433350

[kikaha]

Another interesting observation is that the USB pins appear to be messed up in minternj's photo, which matches mine as well.

Typically, USB motherboard (IDC) connections are red-white-green-black-black for (power, D-, D+, Gnd, Gnd) (note that the last ground is typically not connected).  But in the photo you can clearly see (from the outside of the board inward) black-green-white-red-black, which is completely wrong for USB.  Testing the pins and then using my own USB IDC to Type A cable, I found the header on the board is correct.  If you connect a standard IDC cable to the board with red starting on the outside of the board, it works perfectly.  Don't know why they would use a USB cable with messed up color coding.

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

[defcon23]

My BJ hashes @ 422 GH/s consuming 407W at the wall using stock settings:

Code:

#!/bin/bash
sleep 10
/usr/bin/screen -dmS miner /opt/minepeon/bin/cgminer -c /opt/minepeon/etc/miner.conf --hfa-hash-clock 550

I highly recommend using the latest cgminer 3.11x with these devices, quite a bit of work to the hf driver was done.  Also you do not need to supply the --hfa-hash-clock if you are just going to run at 550 since thats default, a good number to try is 610, of course will use more power but should get you more hashing and not many if all hw errors..

thanx 

[SolarSilver]

Come on guys, these questions are getting ridiculous.

And what exact factual contribution do you have to add to this conversation? Can you tell us what spare parts to order? How the 3 boards are hooked up?

[SolarSilver]

Power supply inside a Sierra is a Seasonic Model (X-850) SS-850KM Active PFC F3 power supply rated at 850 Watts.  There are two.  One supply goes to the left PCIE power inputs of all 3 boards and the other goes to the right PCIE power inputs of each board.  I will post some photos later on today, since after verifying that it mined, I took it apart to see how everything was connected.

Thank you for some real info we can use.

I'm surprised, I was expecting 2 power supplies, one hooked up to 2 boards and the other to one board

[bitterdog]

Great news for Team HF. On Feb. 1, a Saturday, when they head to their Fedex store to ship more Batch 2 packages, they could walk a half block away and attend http://www.eventbrite.com/e/everything-you-need-to-know-to-build-a-great-team-registration-9740621461?aff=es2&rank=25&sid=ebb4399182f211e3a21912313d225df9

Im more interested in HOOKER ALLEY COMMUNITY GARDEN!! LOL nice map

[-ck]

Bear in mind that if you upgrade cgminer, the hashrate will appears slightly lower because the earlier code overestimated due to counting all hashes and now the code only counts hashes based on valid share return. There is a slight loss of hashes within the silicon.

Also I have further information that up to 90 degrees is safe so if you are struggling to keep it under 85 with the overclocking and cgminer's throttling is kicking in regularly, you can kick the overheat temp up to 90. I will be changing the default to that in the next version. The device internally sheds cores transiently anyway if it thinks it's overheating, and trips a thermal overload flag should all fail which makes cgminer shut it down so there are countless ways the device is protected.