Official Thread: AMT

[regtable69]

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This is the new cage.

Nice a good splattering of fans and a little redundancy, I hope the board or PI can track working fans or dead ones...

Taking a second look at those fans it seems like they are smaller 80mm fans. A setup like that would be fairly loud would it not? Not that it matters for those putting into custom cases or datacenters but for those mining at home that will be a noisy mess. Would 2 larger 180mm fans work? 2 of them would seem to be more than enough to push air through. Just wondering what the design decision was that led to having that many smaller fans vs a couple of larger fans that could achieve similar CFM with a lower Db level.

possible you could face dead zones around the centre of the larger fans which would leave 2 cards prone to over heat. thats my theory

[NotFuzzyWarm]

When trying different fans, first look at the cfm needed and just make sure ya at least match the total cfm of whatever they ship with. Also on center dead zones: only applies to close mounted fans. If placed >1.5 the thickness of the fan away from the heat sinks (and have the side gaps closed off) the back pressure from the heat sinks almost always results in near perfect air distribution everywhere. I do this all the time with power systems I design.

Or... maybe wedge some copper or aluminum tubing between the fins and plumb to a manifold for liquid-cooling... Heck, I'd be tempted to pull the sinks and mount a cold-plate instead. Hmm...

On PSU's gotta say check Amazon or ebay, case in point, http://www.amazon.com/s/ref=sr_nr_p_n_feature_keywords_6?rh=n%3A1161760%2Ck%3Ahp+server+power+supply%2Cp_n_feature_keywords_two_browse-bin%3A6906988011&keywords=hp+server+power+supply&ie=UTF8&qid=1396308246&rnid=6525659011

Only catch is that they usually have 1-2 heavy output buses in the form of big copper lugs. Folks sel lug to pcie cable breakouts or just make yer own from some sets of pcie extender cables.

[opieum2]

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This is the new cage.

Nice a good splattering of fans and a little redundancy, I hope the board or PI can track working fans or dead ones...

Taking a second look at those fans it seems like they are smaller 80mm fans. A setup like that would be fairly loud would it not? Not that it matters for those putting into custom cases or datacenters but for those mining at home that will be a noisy mess. Would 2 larger 180mm fans work? 2 of them would seem to be more than enough to push air through. Just wondering what the design decision was that led to having that many smaller fans vs a couple of larger fans that could achieve similar CFM with a lower Db level.

possible you could face dead zones around the centre of the larger fans which would leave 2 cards prone to over heat. thats my theory

There are dead zones in this design as well. I guess it depends on the reasons for the design too. Its possible 180mm would just not fit int he case (which is easily the case) 140mm might have not been large enough. I was more curious as to why this many fans really vs less and larger fans with similar CFM. Not a deal breaker by any means but it is a curious choice.

[sirminesalot]

When trying different fans, first look at the cfm needed and just make sure ya at least match the total cfm of whatever they ship with. Or... maybe wedge some copper or aluminum tubing between the fins and plumb to a manifold for liquid-cooling... Heck, I'd be tempted to pull the sinks and mount a cold-plate instead. Hmm...

On PSU's gotta say check Amazon or ebay, case in point, http://www.amazon.com/s/ref=sr_nr_p_n_feature_keywords_6?rh=n%3A1161760%2Ck%3Ahp+server+power+supply%2Cp_n_feature_keywords_two_browse-bin%3A6906988011&keywords=hp+server+power+supply&ie=UTF8&qid=1396308246&rnid=6525659011

Only catch is that they usually have 1-2 heavy output buses in the form of big copper lugs. Folks sel lug to pcie cable breakouts or just make yer own from some sets of pcie extender cables.

The case is fucked because it can't natively support two power supplies in it.

That's why buying a desktop PC case for this design was retarded. So was hoping it'd all run off of one power supply, and be expandable, to boot.

The way I see it, it'd be better to have dual 750's or 1000watt PSU's - redundancy being the key here (not one power supply issue will take all boards offline).

Shop around for "dual power supply cable" - these will let you connect two powersupplies to one motherboard (or switch). They are fairly cheap.

[NotFuzzyWarm]

Interesting, I assume these are for use with supplies that are made to support redundant/hot-swap with internal isolation diodes? No way they can be in the plugs, they'd melt.

[RickJamesBTC]

No, they just double up the turn on pins in the second psu. I have them in my store.

[NotFuzzyWarm]

better have some well matched supplies then. Even so, the one with higher v out will get most/all the load...
EDIT: Hmm on re-read ( & look), so the supplies outputs are not actually tied together, you are just switching 2 supplies on/off at once and each feeds it's own load? (not 1+n redundant)

[sirminesalot]

Good luck using server power supplies. They are expensive, and the cabling usually isn't very long.

They also have proprietary connections based on the brand you buy, so you have to do research.

On a side note: I think it's a fucking embarrassment that AMT is saying they are out of power supplies. If they ship any miner without case, PSU, whatever - then a refund should be made to cover the cost of those items.

[NaranKPatel]

Likely a dual 800 supply will cheap than 1500

When trying different fans, first look at the cfm needed and just make sure ya at least match the total cfm of whatever they ship with. Or... maybe wedge some copper or aluminum tubing between the fins and plumb to a manifold for liquid-cooling... Heck, I'd be tempted to pull the sinks and mount a cold-plate instead. Hmm...

On PSU's gotta say check Amazon or ebay, case in point, http://www.amazon.com/s/ref=sr_nr_p_n_feature_keywords_6?rh=n%3A1161760%2Ck%3Ahp+server+power+supply%2Cp_n_feature_keywords_two_browse-bin%3A6906988011&keywords=hp+server+power+supply&ie=UTF8&qid=1396308246&rnid=6525659011

Only catch is that they usually have 1-2 heavy output buses in the form of big copper lugs. Folks sel lug to pcie cable breakouts or just make yer own from some sets of pcie extender cables.

The case is fucked because it can't natively support two power supplies in it.

That's why buying a desktop PC case for this design was retarded. So was hoping it'd all run off of one power supply, and be expandable, to boot.

The way I see it, it'd be better to have dual 750's or 1000watt PSU's - redundancy being the key here (not one power supply issue will take all boards offline).

Shop around for "dual power supply cable" - these will let you connect two powersupplies to one motherboard (or switch). They are fairly cheap.

It's likely that 2 x 750/900w supplies will be cheaper and more popular than one big 1500-1800 watt unit anyway, thus less of supply/demand issue. I assume you just need to chain power cables switches of both turn on together so that all boards on the back-plane are powered in the chain at the same time otherwise no joy...

I would like / prefer, 6 x board back plane with 2 power chained together option if it exists...? Some of 800-900w units are fairly small, I wonder if they can they fit in the rack case?!? Both inside, one out one in, both outside?

[sirminesalot]

Agreed. The higher wattage PSU's (1500+) are a ripoff and why would you want to push so much load over one supply?

Retarded design.

They should have taken a note from the ebayer who had pictures of a 4u rack case, with space for 2 PSU's.

[augustocroppo]

Alyssa,

And Josh rarely types here. I'll check you're mail and get back to you shortly.

You are certainly not Alyssa, but Josh or Jim pretending to be Alyssa. I quite doubt that an Alyssa would use so many technical terms in her posts and know certain details which just a Josh or a Jim should know from the onset of this topic.

[augustocroppo]

OK, did AMT provided any proof of delivery? Did anyone aside from the obvious shill received any order? Otherwise, you are all still being manipulated. What I read is just more promises and excuses to avoid deliver what every customers paid a high price for it.

[FrictionlessCoin]

I am order #958, the only thing I got so far from AMT is a bad attitude. All the solutions are just a mix match of parts or missing parts. Power supplies and cases no where in sight. The miners don't hash at the advertised speed unless you put them in turbo mode. This is why I am trying to go the refund route. If you try to complain they will rip your head off.

I filed with FTC and they also asked if I was a veteran when I filed and I said yes. I am also going to contact my veterans group to let them know what this wonderful American mining company is doing to me and the other veterans here.

AMT definitely need to ramp up their customer service.

At this point,  they're lack of responsiveness is going to lead to a lot of legal action.

[regtable69]

I am order #958, the only thing I got so far from AMT is a bad attitude. All the solutions are just a mix match of parts or missing parts. Power supplies and cases no where in sight. The miners don't hash at the advertised speed unless you put them in turbo mode. This is why I am trying to go the refund route. If you try to complain they will rip your head off.

I filed with FTC and they also asked if I was a veteran when I filed and I said yes. I am also going to contact my veterans group to let them know what this great American mining company is doing to me and other veterans here.

not being nasty as you served your time well, ok you are a veteran but this is using the fact you are a vet which is the same as playing "is it coz i is black card." amt are not the only ones who disrespect veterans say health systems, governments , kids you name it. do you get free or preferential treatment from mc donalds?? doy you get preferential treatment when you fill up at exxon or shop at k mart. you are a normal person whos been through a lot i'm sure, but you being a veteran has nothing to do with this at all. sorry if it offends you but it offends me to see you write it. because from your statement you have more right to the miner than i do? no i think not we both earned our money we both paid the same and we both deserve a miner. do not use your veteran status as a leverage its just disrespectful in my eyes.

[regtable69]

I am order #958, the only thing I got so far from AMT is a bad attitude. All the solutions are just a mix match of parts or missing parts. Power supplies and cases no where in sight. The miners don't hash at the advertised speed unless you put them in turbo mode. This is why I am trying to go the refund route. If you try to complain they will rip your head off.

I filed with FTC and they also asked if I was a veteran when I filed and I said yes. I am also going to contact my veterans group to let them know what this wonderful American mining company is doing to me and the other veterans here.

AMT definitely need to ramp up their customer service.

At this point,  they're lack of responsiveness is going to lead to a lot of legal action.

are you referring to the "kit" option? iv also had no reply from 3 emails regarding this lol. really dunno what to think of all this now

[regtable69]

My veteran status does have to do with this case, as I said the FTC asked me and I imagine it makes them look a bit harder. This is also good for the others who are being ignored by AMT. Kids and healthcare did not take my $6000. Most people do not hate, they are respectful and say things like "thanks for your service" when I did not ask.

so you get a preferential service from the ftc (which i presume is a govt service) and so you should but amt specifically will not treat you any better as you are the same as me a paying customer.

[FrictionlessCoin]

My veteran status does have to do with this case, as I said the FTC asked me and I imagine it makes them look a bit harder. This is also good for the others who are being ignored by AMT. Kids and healthcare did not take my $6000. Most people do not hate, they are respectful and say things like "thanks for your service" when I did not ask.

so you get a preferential service from the ftc (which i presume is a govt service) and so you should but amt specifically will not treat you any better as you are the same as me a paying customer.

Veterans do get preferential service from government agencies,  that is just the way it works.

He has every right to use this card.  It's not just the government, but the courts will not look kindly on a company that is screwing veterans.

Remember, we are customers of AMT.  We have paid over $6,000 each for a product they have not delivered.  They owe it to us to be responsive to our queries.  So far, they have not been, and that is why so many of us are forced to take the legal route.  We truly have no other option.

[rik_khaos]

Did you work for the Govt as a civilian was another question they asked, but it did not allow me to check both. I only see this helping everyone because your cases will be grouped with mine.

I noted my service on the FTC complaint as well. I figured it can only help if they are going to try to mediate something.

Though I'm looking at going with the DIY kit to get it quicker, get a milk crate and find a way to mount it in there, do a dual PSU set up and and run an extension cord to get the one psu in another socket on another breaker. Get a fan to pull the heated air and expel it out a window.

I just need to hear back from amt on this.

[regtable69]

Did you work for the Govt as a civilian was another question they asked, but it did not allow me to check both. I only see this helping everyone because your cases will be grouped with mine.

i am a uk citizen so i am fubard with that respect. you cannot possibly help me lol. although because i am in the uk i do not need the psu that you guys need or get so i am exempt from requiring amt to provide a psu i cannot possibly use so kit option it is lmao

[rik_khaos]

They said anyone who filed a complaint they will not help. So a kit is not possible if you filed.

What they said was they don't like it and don't give preferred treatment. I don't think taking my miner with missing pieces is in any way preferred treatment, more just a consolation prize if anything. Though I did give them the excellent idea of shipping with extra cage and back plane which gives them more room to sell add on boards or course they want to make it an upgrade because they've not taken enough of our money.

I'll put my request in and if they honor it I will pull all my complaints, it's that simple. If the situation is resolved there I have no complaint. But if they don't honor the DIY kit then the complaint will stick.

SO now I'll e-mail and see if they get back to me.