Swedish ASIC miner company kncminer.com

[CYPER]

Beauty  

[Searing]

**too much air on the VRM's will shut some down....
just be aware of that.
sweet lookin' setup btw...  

from the MDT040A0X docs.
Wide operating temperature range [-40°C to105°C]

I don't think you know what you are talking about.
But thx for appreciating the aesthetics.

well imho the Jupiter 1st order units are "interesting" Phonex's unit for example runs better "hot" 60c or above...I have a unit where my cores are 30c 31c 38c and 40c ..if they get in the 50's range I lose hash

ie we are completely oppisite on how we get extra GH

we also both have I think some of the better running units

so..that is where he was coming from...the posts from my experiences and his experiences and others on the forum...it may vary greatly..

also he is in hawaii and mine is in a 62F basement wating for winter.....I also have the cover off and 2 5" menard's fans blowing from either side of the front crossways across the unit....if i shut one fan off i lose hash ..i turn of both i lose more hash...kinda a clue that the temps matter on my unit..oppisite thou they be from phoenix's units

go figure

Searing

Out of interest how hot have yours peaked at?

in the basement scenario at 62F which is more or less stable and cover off fans etc...I think the hottest I've seen them is 48c before I got the fans ...now at around 40c or maybe 41c is my hottest.....they we're hotter with the .99 upgrade but adjusted the fans some the outside ones blowing crossways

my basement will probably always be around 62F so prob this is as low as I can go cooling wise

also I'm in a dry winter basement 62F Phoneix's unit which I think acts opposite then mine is in Hawaii ...could just plain Humidity diff be the reason for this ...it would be very large imho

anyway...whatever floats the boat

Searing

[Searing]

Beauty 

HEY.....where did you get the cool decals..mine is as plain as a baby's butt.....(I also only have one piece of foam on the top of one of my heat sinks missing the other 3 foam pieces.....)


the fiends


very pretty....

Searing

[tolip_wen]

**too much air on the VRM's will shut some down....
just be aware of that.
sweet lookin' setup btw...  

from the MDT040A0X docs.
Wide operating temperature range [-40°C to105°C]

I don't think you know what you are talking about.
But thx for appreciating the aesthetics.

whatever...  okay....cool away....
it was only posted like a dozen times by different folks, but I guess I'm wrong.

The amount of folks and the amount of times posted does not trump physics.

I could be wrong, I don't claim otherwise, you do.

What if the fix is reduced output from the VRM's when they are over 75C?
If so, it might be possible to back them off in software, without the heat gun.

The VRM's on my boards are running ~75C when I have the ghetto cardboard air tunnel removed.

The docs say to expect a drop in output near this temperature.

http://www.lineagepower.com/oem/pdf/MDT040A0X.pdf

top right page 7 (@0.6V)  &  page 8 (@ 1.2V)
guestimate between them for 0.9V

[Bogart]

Agree, Water is the choice for thermal reasons alone.

I wonder if anyone has ever tried this stuff in a PC/miner liquid cooling system to increase its performance:

http://www.redlineoil.com/product.aspx?pid=74&pcid=10

[fubly]

Hi LiqCooling Cowboys!

Whats about your hashrates, temp, hw errors and so on,
if you give green light then i will cool it too liquid.


I figured out that:


Different Temps on different AsicBoard has different amount of HW errors.

When i think about this situation above in the pic, then i need an Cooling Fan System with external
thermalsensor, or somthing to increase and decrease the speed of the fans.

I have on Asic_3 one original fan repalced with an highspeed corsair fan = blow air
and on the other side of the cooler two 120 mm fans which are sucking the air.

Also on top of all this one:

[CYPER]

Hi LiqCooling Cowboys!

Whats about your hashrates, temp, hw errors and so on,
if you give green light then i will cool it too liquid.


I figured out that:


Different Temps on different AsicBoard has different amount of HW errors.

Wow these are some cool temps. Especially the 1st one.

[CYPER]

Beauty 

HEY.....where did you get the cool decals..mine is as plain as a baby's butt.....(I also only have one piece of foam on the top of one of my heat sinks missing the other 3 foam pieces.....)


the fiends


very pretty....

Searing

Got them in Stockholm.

[fubly]

Hi LiqCooling Cowboys!

Whats about your hashrates, temp, hw errors and so on,
if you give green light then i will cool it too liquid.


I figured out that:


Different Temps on different AsicBoard has different amount of HW errors.

Wow these are some cool temps. Especially the 1st one.

I HAVE NO liquid cooling

[BitcoinApprentice]

On the fedex/ups talks, I use both regularly. UPS never fails me for normal deliveries or even 2nd-day or same day air. FedEx next day and same day air is also good.

However, normal ground deliveries? FedEx blows.

I know it's not a consolation, but I ordered a curtain rod last week and used FedEx. The shipment came from one state, passed by my house, went to another state, went back past my state, and then got left in a fedex courier facility where it's sat for 4 days.

They're still trying to assess the issue.

The issue was I used FedEx.

A couple years ago, I went into a fedex office to check pricing for a package to xyz, since I was in their neighborhood.

They handed me a triplicate form with a gazillion lines on it and told me to fill it out.  ER, you can't give me a price quote until I take 20 minutes out of my life?  Goodbye & good riddens. Haven't been back since.

What a great business model, the CEO must've gone to a govt funded university.  WOW/// 

[soy]

Beauty 

HEY.....where did you get the cool decals..mine is as plain as a baby's butt.....(I also only have one piece of foam on the top of one of my heat sinks missing the other 3 foam pieces.....)


the fiends


very pretty....

Searing

I notice in this and in another photo the rears are almost abutting the wall.  VRMs do get hot and their heat effects the modules.  I put a piece of cardboard between the VRMs and the module and flow air in a tunnel - easy it's a Merc and only a single module so cardboard on the outside of the PCB making the tunnel, the air passes over the VRMs and out the back - being kept sequestered from the module as it were, in addition to the Arctic Freezer w/fan.  When the extra module gets here it will go behind the first as my power supplies will be on the left.  I will probably mount two 2" diag 12v fans on the board blowing right toward the VRMs and perhaps a 120mm fan to the back behind the added module pulling air out.

[CYPER]

Beauty 

HEY.....where did you get the cool decals..mine is as plain as a baby's butt.....(I also only have one piece of foam on the top of one of my heat sinks missing the other 3 foam pieces.....)


the fiends


very pretty....

Searing

I notice in this and in another photo the rears are almost abutting the wall.  VRMs do get hot and their heat effects the modules.  I put a piece of cardboard between the VRMs and the module and flow air in a tunnel - easy it's a Merc and only a single module so cardboard on the outside of the PCB making the tunnel, the air passes over the VRMs and out the back - being kept sequestered from the module as it were, in addition to the Arctic Freezer w/fan.  When the extra module gets here it will go behind the first as my power supplies will be on the left.  I will probably mount two 2" diag 12v fans on the board blowing right toward the VRMs and perhaps a 120mm fan to the back behind the added module pulling air out.

It's a skewed perspective. I just measured the distance and there is 17cm between the miners and the wall.

[soy]

Beauty 

HEY.....where did you get the cool decals..mine is as plain as a baby's butt.....(I also only have one piece of foam on the top of one of my heat sinks missing the other 3 foam pieces.....)


the fiends


very pretty....

Searing

I notice in this and in another photo the rears are almost abutting the wall.  VRMs do get hot and their heat effects the modules.  I put a piece of cardboard between the VRMs and the module and flow air in a tunnel - easy it's a Merc and only a single module so cardboard on the outside of the PCB making the tunnel, the air passes over the VRMs and out the back - being kept sequestered from the module as it were, in addition to the Arctic Freezer w/fan.  When the extra module gets here it will go behind the first as my power supplies will be on the left.  I will probably mount two 2" diag 12v fans on the board blowing right toward the VRMs and perhaps a 120mm fan to the back behind the added module pulling air out.

It's a skewed perspective. I just measured the distance and there is 17cm between the miners and the wall.

Well, if you think 3/4" is enough....

[Biffa]

It's a skewed perspective. I just measured the distance and there is 17cm between the miners and the wall.

Well, if you think 3/4" is enough....

17cm = 6.7 inches

You are thinking mm

[Phoenix1969]

This is actually a bit embarrassing, but it may help someone with a bad die/no amps on a VRM. I just got done installing a new 200amp service line to my home, and was very happy to shut down, to move the miners to the new, more powerful circuit... When I rebooted, one of the miners wasn't up to speed...
So, using bertmod, was able to quickly identify the board, and that a vrm wasnt getting any amps..(0.34).  I tried every enablecore, cooling, heating trick i could think of, and was really scratching my head, because that miner was the fastest before. I fiddled and prodded, tried every connection, and guess what....
It was a loose pci cable connection on the board...  I gave it a wiggle, and bertmod showed it fired right up!  Now we know yet another thing to look for... those pci connections can fool ya, and are connection critical....  

[opentoe]

http://www.c-span.org/Live-Video/C-SPAN3/
Tony Gallippi speaking now

Thanks for the heads-up

For anything related to politics, that was pretty interesting.

Basically, they don't want bitcoin to be used to fund terrorism or buy drugs.

Otherwise, they seemed quite interested in it's potential for innovation.

You need to read between the lines.   What i took from it was..  It's fine as long as we have a the right to cease funds, and every exchange muh collect personal details, same as a bank. 

I guess people only heard what they wanted to here!  crypto will carry on regardless

What I got "Between the lines" Is that they want traceability, and identity; they were promised that....end of story.
Look for a huge jump in BTC price now! Wow.

The price is actually dropping.

[opentoe]

Beauty 

HEY.....where did you get the cool decals..mine is as plain as a baby's butt.....(I also only have one piece of foam on the top of one of my heat sinks missing the other 3 foam pieces.....)


the fiends


very pretty....

Searing

I notice in this and in another photo the rears are almost abutting the wall.  VRMs do get hot and their heat effects the modules.  I put a piece of cardboard between the VRMs and the module and flow air in a tunnel - easy it's a Merc and only a single module so cardboard on the outside of the PCB making the tunnel, the air passes over the VRMs and out the back - being kept sequestered from the module as it were, in addition to the Arctic Freezer w/fan.  When the extra module gets here it will go behind the first as my power supplies will be on the left.  I will probably mount two 2" diag 12v fans on the board blowing right toward the VRMs and perhaps a 120mm fan to the back behind the added module pulling air out.

It's a skewed perspective. I just measured the distance and there is 17cm between the miners and the wall.

Cyper, do your the guy a lot of Saturn owners didn't get a chance to upgrade their miners!

[Phoenix1969]

one more note and I'll shut up for the evening....  hehe
The new dedicated electrical service line for the miners really is looking to be helping stability as well.
I'll share graph results tomorrow when there's a 12 hour result.....
Night all

[Searing]

one more note and I'll shut up for the evening....  hehe
The new dedicated electrical service line for the miners really is looking to be helping stability as well.
I'll share graph results tomorrow when there's a 12 hour result.....
Night all

yep the only thing I have on my 20amp circuit in the basement is the miner and an old evon800v laptop to run putty ..and of course the sep fans blowing from the outside on the open case...also have a pretty heavy duty ISO power brick.........for all I know it may have some kinda elec filter stuff going on *was given to me forget how*

[opentoe]

These miners don't require much power and at least in my opinion do not require a 220 line like a 20,000 BTU air conditioner does. A Jupiter is only pulling what 600? 700?