Avalon 7

[allinvain]

I wonder if the PCIE jacks on these are strong enough to handle the current flowing through just two plugs per board. I would use 16 AWG cables from the PSU so I'd have 4 PCIE cables per system, 2 per board.

[1715300250]

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[1715300250]

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[1715300250]

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[1715300250]

1715300250

[QuintLeo]

I wonder if the PCIE jacks on these are strong enough to handle the current flowing through just two plugs per board. I would use 16 AWG cables from the PSU so I'd have 4 PCIE cables per system, 2 per board.

125 watts or less per connector?

 Trivial - the PCI-E standard for 8-pin connections uses the *SAME* 3 pins for 12VDC as the 6-pin connection yet is rated by the PCI-E group at 150 watts.
 The actual CONNECTORS used for the PCI-E 6-pin connections are rated at 288 watts - the PCI-E standard is EXCESSIVELY conservative in rating them at 75 watts.



 As far as A7 reliability - there is NO track record for it, though the A6 had a generally good record which implies but does NOT specify that the A7 should as well.

[sidehack]

PCIe 6-pin spec only requires two wires for power; 8-pin requires all 3. If you're only using 18AWG wire (which most consumer PSUs do), 150W is a practical upperbound for a 3-hots 6-pin.

[QuintLeo]

Interesting, I've never seen a PCI-E 6-pin connector that only used 2 wires though.
On the other hand, I stick with high quality PS that don't scrimp....

 9-)

[in2tactics]

Interesting, I've never seen a PCI-E 6-pin connector that only used 2 wires though.
On the other hand, I stick with high quality PS that don't scrimp....

 9-)

I think you misunderstand. The 6-pin connector only has two +12V lines according to the standard.

[HagssFIN]

Interesting, I've never seen a PCI-E 6-pin connector that only used 2 wires though.
On the other hand, I stick with high quality PS that don't scrimp....

 9-)

I think you misunderstand. The 6-pin connector only has two +12V lines according to the standard.

Yeah, the official standard declares one plus pin as "no connection", but most PSUs provide +12 volts at this pin.
So in most cases there is 3x +12V and 3x COM pins.

This is the case for most PSUs:


The official standard declares the pin number 2 as a "no connection".

[in2tactics]

Interesting, I've never seen a PCI-E 6-pin connector that only used 2 wires though.
On the other hand, I stick with high quality PS that don't scrimp....

 9-)

I think you misunderstand. The 6-pin connector only has two +12V lines according to the standard.

Yeah, the official standard declares one plus pin as "no connection", but most PSUs provide +12 volts at this pin.
So in most cases there is 3x +12V and 3x COM pins.

This is the case for most PSUs:


The official standard declares the pin number 2 as a "no connection".

Technically, it is usually 2x +12V, 2x Ground, 1x Sense, and the last one is either +12V or empty.

[HagssFIN]

Interesting, I've never seen a PCI-E 6-pin connector that only used 2 wires though.
On the other hand, I stick with high quality PS that don't scrimp....

 9-)

I think you misunderstand. The 6-pin connector only has two +12V lines according to the standard.

Yeah, the official standard declares one plus pin as "no connection", but most PSUs provide +12 volts at this pin.
So in most cases there is 3x +12V and 3x COM pins.

This is the case for most PSUs:


The official standard declares the pin number 2 as a "no connection".

Technically, it is usually 2x +12V, 2x Ground, 1x Sense, and the last one is either +12V or empty.

Yes one of the grounds is for the GPU's Sense connector to tell that "hey I'am a connected cable".
And as I said in most cases there is 3x +12V pins.

Official standard though indeed declares that one pin as an empty connection.
I haven't personally seen this in any PSUs but it is possible to find this situation.

My picture is for most cases, it is not the standard.

Here is a link for the pinout according to the standard for those who are interested: http://cdn.overclock.net/a/ac/ac82eb1d_pinout.png

[in2tactics]

Yes one of the grounds is for the GPU's Sense connector to tell that "hey I'am a connected cable".
And as I said in most cases there is 3x +12V pins.

Official standard though indeed declares that one pin as an empty connection.
I haven't personally seen this in any PSUs but it is possible to find this situation.

My picture is for most cases, it is not the standard.

Here is a link for the pinout according to the standard for those who are interested: http://cdn.overclock.net/a/ac/ac82eb1d_pinout.png

The issue that I was taking with your 6-pin depiction was the listing of 3x COM.

[HagssFIN]

Yes one of the grounds is for the GPU's Sense connector to tell that "hey I'am a connected cable".
And as I said in most cases there is 3x +12V pins.

Official standard though indeed declares that one pin as an empty connection.
I haven't personally seen this in any PSUs but it is possible to find this situation.

My picture is for most cases, it is not the standard.

Here is a link for the pinout according to the standard for those who are interested: http://cdn.overclock.net/a/ac/ac82eb1d_pinout.png

The issue that I was taking with your 6-pin depiction was the listing of 3x COM.

They basicly are 3x COM pins.
The sense in the GPU is grounded and when that circuit so closes, the GPU knows that I got a cable.

You are right though that if we are totally official we should call it sense.

[clgrissom3]

Has anyone been able to pay for the A721 with anything other than bank transfer?

[HagssFIN]

Has anyone been able to pay for the A721 with anything other than bank transfer?

I guess not. Phil didn't get a green light for his paypal proposal yet and btc payment has been a no go.
I simply can not understand why Canaan is this way stabbing their own knee.

[valkir]

They will sell only to big company or a person with a lot of money. They will probably lose a lot of sell. Strange call!

[philipma1957]

Has anyone been able to pay for the A721 with anything other than bank transfer?

I guess not. Phil didn't get a green light for his paypal proposal yet and btc payment has been a no go.
I simply can not understand why Canaan is this way stabbing their own knee.

I will get an answer on Monday about paypal.

[clgrissom3]

Has anyone been able to pay for the A721 with anything other than bank transfer?

I guess not. Phil didn't get a green light for his paypal proposal yet and btc payment has been a no go.
I simply can not understand why Canaan is this way stabbing their own knee.

I will get an answer on Monday about paypal.

My request for any alternate payment method was politely denied.

Code:

right now our shop is new and we are only offering bank transfer for payment right now until we get the basics down.

[philipma1957]

Has anyone been able to pay for the A721 with anything other than bank transfer?

I guess not. Phil didn't get a green light for his paypal proposal yet and btc payment has been a no go.
I simply can not understand why Canaan is this way stabbing their own knee.

I will get an answer on Monday about paypal.

My request for any alternate payment method was politely denied.

Code:

right now our shop is new and we are only offering bank transfer for payment right now until we get the basics down.

As was mine
Sad as  all this just pushes me to GPU mining of Alts.

[leowonderful]

No wonder this miner's not having good sales- one payment option that doesn't work for most people and a rushed 16nm chip with efficiency that barely beats the S7's. Not sure what Canaan is doing right now, they're digging themselves into a hole. Not like many people were going to buy this miner if they accepted BTC and other methods anyways. They're losing money either way, I would've preferred a better thought out miner and payment plan than this mess.

[philipma1957]

No wonder this miner's not having good sales- one payment option that doesn't work for most people and a rushed 16nm chip with efficiency that barely beats the S7's. Not sure what Canaan is doing right now, they're digging themselves into a hole. Not like many people were going to buy this miner if they accepted BTC and other methods anyways. They're losing money either way, I would've preferred a better thought out miner and payment plan than this mess.

Well at least amazon and newegg send me gpus fast.  I get 1 2 and 3 year warranties on the gear and  I have a long return policy.

Not that I do this but I could order parts for an  entire rig and return it to amazon in late Jan  say it failed. And get a refund.

This is driving alt coins big time and hurting btc it has   been happening since March about 7 months.

I have had more luck with alts then btc this year.

[Elphamyto]

I'm confused. What is with this "The shop is new" talk? Does this have something to do with Canaan's acquisition a few months ago? The company has been on and off the asic production scene for a long time; Avalon 6's were not difficult to get a hold of. So what's going on?

[philipma1957]

I'm confused. What is with this "The shop is new" talk? Does this have something to do with Canaan's acquisition a few months ago? The company has been on and off the asic production scene for a long time; Avalon 6's were not difficult to get a hold of. So what's going on?

I am still efforting to get payment other then bank.  I guess this is all about the new ownership.