Update Large review of Finksy/J4bbrwock server psus compared to ATXpsu-photos up

[philipma1957]

You are the MAN Phillip.  Pictures are worth a thousand words as they say.  I thought that was just a screw, didn't even know it's a Trimming / adjustable thing.  WOOHOO.  12.55V now.  Will connect the Avalon to this Board later this week.  Right now it's busy warming up the house.  Yes, I just starting doing the NiceHash casino on Kano pool.  It's paying off for me with the current luck while I work on finishing up the 400AMP upgrade.  


Update - Now that I'm over volting it to give it more juice, they seem to react much better to the 731M frequency then when at just 12-12.2V.  Testing this for a few hours and see how stable this is as I'm surely over stressing my 2x2KW PSU at this load.

The batch eight should be under clocked  based on the burn up complaints

If I kept the batch eight I would run at freq 687 and 11.85 volts

[nhando]

Good tip.  Just playing with the different setting to see the potential, I will reduce the voltage for the S7.  Only getting this more for the Avalon.  

Just curious - What ambient temperature were those guys running that they burn their boards?  My garage is currently 65 degrees right now so I'm not as concern for a short test.  What hash rate would I get at the lower voltage and that freq you mention?

[philipma1957]

Good tip.  Just playing with the different setting to see the potential, I will reduce the voltage for the S7.  Only getting this more for the Avalon.  

Just curious - What ambient temperature were those guys running that they burn their boards?  My garage is currently 65 degrees right now so I'm not as concern for a short test.  What hash rate would I get at the lower voltage and that freq you mention?

some were under 50f

maybe 4600 vs 4730

[rockyforever]

Good tip.  Just playing with the different setting to see the potential, I will reduce the voltage for the S7.  Only getting this more for the Avalon.  

Just curious - What ambient temperature were those guys running that they burn their boards?  My garage is currently 65 degrees right now so I'm not as concern for a short test.  What hash rate would I get at the lower voltage and that freq you mention?

some were under 50f

maybe 4600 vs 4730

I sent a PM to Finsky and waiting on a response but figured I would ask here.

I was sent the 4k set-up, purchased my own fans and set it up and the PSUs made crackling sounds. I assumed with the c19-c20 power plug from PSU that it would work with my 240v PDU (just like the 2880 set-up I currently have from finsky). I looked at the power cord and saw a small sticker that says 120v 15 amp, so I am thinking I have to buy a separate power cord c19-c20 rated for 240v 30 amps for both PSUs to work with the PDU but I am afraid that the crackling might have fried the PSUs utilizing the 120v plugs.

Please let me know your thoughts. thanks!

[nhando]

Good tip.  Just playing with the different setting to see the potential, I will reduce the voltage for the S7.  Only getting this more for the Avalon.  

Just curious - What ambient temperature were those guys running that they burn their boards?  My garage is currently 65 degrees right now so I'm not as concern for a short test.  What hash rate would I get at the lower voltage and that freq you mention?

some were under 50f

maybe 4600 vs 4730

Do you have the Wattaged used with this underclocking and lower freq?  Sounds like a good trade off for longer longevity with not much lower hash.  Probably a reasonable amount of electricity saved via lower wattage too.

[philipma1957]

Good tip.  Just playing with the different setting to see the potential, I will reduce the voltage for the S7.  Only getting this more for the Avalon.  

Just curious - What ambient temperature were those guys running that they burn their boards?  My garage is currently 65 degrees right now so I'm not as concern for a short test.  What hash rate would I get at the lower voltage and that freq you mention?

some were under 50f

maybe 4600 vs 4730

I sent a PM to Finsky and waiting on a response but figured I would ask here.

I was sent the 4k set-up, purchased my own fans and set it up and the PSUs made crackling sounds. I assumed with the c19-c20 power plug from PSU that it would work with my 240v PDU (just like the 2880 set-up I currently have from finsky). I looked at the power cord and saw a small sticker that says 120v 15 amp, so I am thinking I have to buy a separate power cord c19-c20 rated for 240v 30 amps for both PSUs to work with the PDU but I am afraid that the crackling might have fried the PSUs utilizing the 120v plugs.



Please let me know your thoughts. thanks!

You have a different issue. The power cords are good.
The wires can handle 240 volts.

Need photos  of the setup.

Need to know if you crossed the pcie cables as you can put them in backwards.

Do you power on with no pcie cables .  Just the fans and no miners?

@ nhando. You should save 3-5 percent per gh so 26/27 is how much it will reduce watts per gh on my model

On your model it should be 30/31 or so per gh of hash

[rockyforever]

Good tip.  Just playing with the different setting to see the potential, I will reduce the voltage for the S7.  Only getting this more for the Avalon.  

Just curious - What ambient temperature were those guys running that they burn their boards?  My garage is currently 65 degrees right now so I'm not as concern for a short test.  What hash rate would I get at the lower voltage and that freq you mention?

some were under 50f

maybe 4600 vs 4730

I sent a PM to Finsky and waiting on a response but figured I would ask here.

I was sent the 4k set-up, purchased my own fans and set it up and the PSUs made crackling sounds. I assumed with the c19-c20 power plug from PSU that it would work with my 240v PDU (just like the 2880 set-up I currently have from finsky). I looked at the power cord and saw a small sticker that says 120v 15 amp, so I am thinking I have to buy a separate power cord c19-c20 rated for 240v 30 amps for both PSUs to work with the PDU but I am afraid that the crackling might have fried the PSUs utilizing the 120v plugs.

Please let me know your thoughts. thanks!

You have a different issue. The power cords are good.
The wires can handle 240 volts.

Need photos  of the setup.

Need to know if you crossed the pcie cables as you can put them in backwards.

Do you power on with no pcie cables .  Just the fans and no miners?

Just the fans, no miners. Is that the issue? I had to buy the fans separate and was going to try a few ways to set it up before attaching the miners.

[philipma1957]

Good tip.  Just playing with the different setting to see the potential, I will reduce the voltage for the S7.  Only getting this more for the Avalon.  

Just curious - What ambient temperature were those guys running that they burn their boards?  My garage is currently 65 degrees right now so I'm not as concern for a short test.  What hash rate would I get at the lower voltage and that freq you mention?

some were under 50f

maybe 4600 vs 4730

I sent a PM to Finsky and waiting on a response but figured I would ask here.

I was sent the 4k set-up, purchased my own fans and set it up and the PSUs made crackling sounds. I assumed with the c19-c20 power plug from PSU that it would work with my 240v PDU (just like the 2880 set-up I currently have from finsky). I looked at the power cord and saw a small sticker that says 120v 15 amp, so I am thinking I have to buy a separate power cord c19-c20 rated for 240v 30 amps for both PSUs to work with the PDU but I am afraid that the crackling might have fried the PSUs utilizing the 120v plugs.

Please let me know your thoughts. thanks!

You have a different issue. The power cords are good.
The wires can handle 240 volts.

Need photos  of the setup.

Need to know if you crossed the pcie cables as you can put them in backwards.

Do you power on with no pcie cables .  Just the fans and no miners?

Just the fans, no miners. Is that the issue? I had to buy the fans separate and was going to try a few ways to set it up before attaching the miners.

Wait for finksy or j4bberwock to answer.
I do not know what is wrong.
I asked because I thought you may have reversed a pcie cable.

[nhando]

Good tip.  Just playing with the different setting to see the potential, I will reduce the voltage for the S7.  Only getting this more for the Avalon.  

Just curious - What ambient temperature were those guys running that they burn their boards?  My garage is currently 65 degrees right now so I'm not as concern for a short test.  What hash rate would I get at the lower voltage and that freq you mention?

some were under 50f

maybe 4600 vs 4730

I sent a PM to Finsky and waiting on a response but figured I would ask here.

I was sent the 4k set-up, purchased my own fans and set it up and the PSUs made crackling sounds. I assumed with the c19-c20 power plug from PSU that it would work with my 240v PDU (just like the 2880 set-up I currently have from finsky). I looked at the power cord and saw a small sticker that says 120v 15 amp, so I am thinking I have to buy a separate power cord c19-c20 rated for 240v 30 amps for both PSUs to work with the PDU but I am afraid that the crackling might have fried the PSUs utilizing the 120v plugs.



Please let me know your thoughts. thanks!

You have a different issue. The power cords are good.
The wires can handle 240 volts.

Need photos  of the setup.

Need to know if you crossed the pcie cables as you can put them in backwards.

Do you power on with no pcie cables .  Just the fans and no miners?

@ nhando. You should save 3-5 percent per gh so 26/27 is how much it will reduce watts per gh on my model

On your model it should be 30/31 or so per gh of hash

Wow, so for the 130 GH dropped, I save 30*130 or 390Watts?  That sounds too good to be true?   My math might be wrong but if I do 5% off of 1500Watts at the wall is only 75 watts.  so it's more like almost 2 watts per GH saved?

[philipma1957]

Good tip.  Just playing with the different setting to see the potential, I will reduce the voltage for the S7.  Only getting this more for the Avalon.  

Just curious - What ambient temperature were those guys running that they burn their boards?  My garage is currently 65 degrees right now so I'm not as concern for a short test.  What hash rate would I get at the lower voltage and that freq you mention?

some were under 50f

maybe 4600 vs 4730

I sent a PM to Finsky and waiting on a response but figured I would ask here.

I was sent the 4k set-up, purchased my own fans and set it up and the PSUs made crackling sounds. I assumed with the c19-c20 power plug from PSU that it would work with my 240v PDU (just like the 2880 set-up I currently have from finsky). I looked at the power cord and saw a small sticker that says 120v 15 amp, so I am thinking I have to buy a separate power cord c19-c20 rated for 240v 30 amps for both PSUs to work with the PDU but I am afraid that the crackling might have fried the PSUs utilizing the 120v plugs.



Please let me know your thoughts. thanks!

You have a different issue. The power cords are good.
The wires can handle 240 volts.

Need photos  of the setup.

Need to know if you crossed the pcie cables as you can put them in backwards.

Do you power on with no pcie cables .  Just the fans and no miners?

@ nhando. You should save 3-5 percent per gh so 26/27 is how much it will reduce watts per gh on my model

On your model it should be 30/31 or so per gh of hash

Wow, so for the 130 GH dropped, I save 30*130 or 390Watts?  That sounds too good to be true?   My math might be wrong but if I do 5% off of 1500Watts at the wall is only 75 watts.  so it's more like almost 2 watts per GH saved?

Sorry tiny iPad sucks.

30/31 is 95 or 96 percent so if you run at 4730 and you use .31 watts a gh

You should run at 4600 .30 watts a gh

So .31 x 4730 =

Vs .30 x 4600 =

[J4bberwock]

Good tip.  Just playing with the different setting to see the potential, I will reduce the voltage for the S7.  Only getting this more for the Avalon.  

Just curious - What ambient temperature were those guys running that they burn their boards?  My garage is currently 65 degrees right now so I'm not as concern for a short test.  What hash rate would I get at the lower voltage and that freq you mention?

some were under 50f

maybe 4600 vs 4730

I sent a PM to Finsky and waiting on a response but figured I would ask here.

I was sent the 4k set-up, purchased my own fans and set it up and the PSUs made crackling sounds. I assumed with the c19-c20 power plug from PSU that it would work with my 240v PDU (just like the 2880 set-up I currently have from finsky). I looked at the power cord and saw a small sticker that says 120v 15 amp, so I am thinking I have to buy a separate power cord c19-c20 rated for 240v 30 amps for both PSUs to work with the PDU but I am afraid that the crackling might have fried the PSUs utilizing the 120v plugs.

Please let me know your thoughts. thanks!

You have a different issue. The power cords are good.
The wires can handle 240 volts.

Need photos  of the setup.

Need to know if you crossed the pcie cables as you can put them in backwards.

Do you power on with no pcie cables .  Just the fans and no miners?

Just the fans, no miners. Is that the issue? I had to buy the fans separate and was going to try a few ways to set it up before attaching the miners.

I have some Sunon fans that made some crackling noise too, when I overvolted too much, like 12.9v.
But apart from the noise, they have been working fine for a few hours until I reduced the voltage for other tests.
Then, I swapped them for other fans.
My Ultrakaze fans were working fine on the same pack of PSUs.

[mavericklm]

a bit off topic:
had crackling/cracking(eng is my 2rd language, sorry) noise somewhere between 750watt and 1100watt, all inside the dps-2000bb....
will check again asap
Talking of single psu over here

[21million]

Thread have helped me a lot ty for the detail and pics

[dmwardjr]

Can anyone tell me HOW I would connect this 280mm x 280mm x 80mm fan to 230 Volts?

Bearing Type:Ball.Current Rating:790mA.Flow Rate - Imperial:1077.1cu.ft/min.Flow Rate - Metric:1865m/h.Frame Dimensions:280mm x 280mm x 80mm.Frame Size:280mm.Noise Rating:66dBA.Power Connection Type:Terminal Block.SVHC:No SVHC (16-Jun-2014).Series:W2E.Supply Voltage:230VAC

http://www.amazon.com/EBM-PAPST-W2E250-HL06-01-AXIAL-230VAC/dp/B00MMX9B5S/ref=sr_1_1?ie=UTF8&qid=1452666821&sr=8-1&keywords=Ebm+Papst+W2E250-Hl06-01+Axial+Fan%2C+280Mm+X+280Mm+X+80Mm

[Prelude]

Can anyone tell me HOW I would connect this 280mm x 280mm x 80mm fan to 230 Volts?

Bearing Type:Ball.Current Rating:790mA.Flow Rate - Imperial:1077.1cu.ft/min.Flow Rate - Metric:1865m/h.Frame Dimensions:280mm x 280mm x 80mm.Frame Size:280mm.Noise Rating:66dBA.Power Connection Type:Terminal Block.SVHC:No SVHC (16-Jun-2014).Series:W2E.Supply Voltage:230VAC

http://www.amazon.com/EBM-PAPST-W2E250-HL06-01-AXIAL-230VAC/dp/B00MMX9B5S/ref=sr_1_1?ie=UTF8&qid=1452666821&sr=8-1&keywords=Ebm+Papst+W2E250-Hl06-01+Axial+Fan%2C+280Mm+X+280Mm+X+80Mm

It probably has terminals for you to connect the wires to directly, then you can put whatever plug you want on the other end? Nice looking fan.

[mavericklm]

http://sigma.octopart.com/10607752/image/EBM-Papst-W2E200-HK38-01.jpg

might be screws terminal, like in the first batches of antminer s1

[kilo17]

Can anyone tell me HOW I would connect this 280mm x 280mm x 80mm fan to 230 Volts?

Bearing Type:Ball.Current Rating:790mA.Flow Rate - Imperial:1077.1cu.ft/min.Flow Rate - Metric:1865m/h.Frame Dimensions:280mm x 280mm x 80mm.Frame Size:280mm.Noise Rating:66dBA.Power Connection Type:Terminal Block.SVHC:No SVHC (16-Jun-2014).Series:W2E.Supply Voltage:230VAC

http://www.amazon.com/EBM-PAPST-W2E250-HL06-01-AXIAL-230VAC/dp/B00MMX9B5S/ref=sr_1_1?ie=UTF8&qid=1452666821&sr=8-1&keywords=Ebm+Papst+W2E250-Hl06-01+Axial+Fan%2C+280Mm+X+280Mm+X+80Mm

Not sure but Papst makes some badass fans

[nhando]

Can anyone tell me HOW I would connect this 280mm x 280mm x 80mm fan to 230 Volts?

Bearing Type:Ball.Current Rating:790mA.Flow Rate - Imperial:1077.1cu.ft/min.Flow Rate - Metric:1865m/h.Frame Dimensions:280mm x 280mm x 80mm.Frame Size:280mm.Noise Rating:66dBA.Power Connection Type:Terminal Block.SVHC:No SVHC (16-Jun-2014).Series:W2E.Supply Voltage:230VAC

http://www.amazon.com/EBM-PAPST-W2E250-HL06-01-AXIAL-230VAC/dp/B00MMX9B5S/ref=sr_1_1?ie=UTF8&qid=1452666821&sr=8-1&keywords=Ebm+Papst+W2E250-Hl06-01+Axial+Fan%2C+280Mm+X+280Mm+X+80Mm

Gave up on the other 2K CFM Fan DMwardjr?

[dmwardjr]

Can anyone tell me HOW I would connect this 280mm x 280mm x 80mm fan to 230 Volts?

Bearing Type:Ball.Current Rating:790mA.Flow Rate - Imperial:1077.1cu.ft/min.Flow Rate - Metric:1865m/h.Frame Dimensions:280mm x 280mm x 80mm.Frame Size:280mm.Noise Rating:66dBA.Power Connection Type:Terminal Block.SVHC:No SVHC (16-Jun-2014).Series:W2E.Supply Voltage:230VAC

http://www.amazon.com/EBM-PAPST-W2E250-HL06-01-AXIAL-230VAC/dp/B00MMX9B5S/ref=sr_1_1?ie=UTF8&qid=1452666821&sr=8-1&keywords=Ebm+Papst+W2E250-Hl06-01+Axial+Fan%2C+280Mm+X+280Mm+X+80Mm

Gave up on the other 2K CFM Fan DMwardjr?

No, haven't given up.  I'm just weighing ALL options.

[dmwardjr]

Can anyone tell me HOW I would connect this 280mm x 280mm x 80mm fan to 230 Volts?

Bearing Type:Ball.Current Rating:790mA.Flow Rate - Imperial:1077.1cu.ft/min.Flow Rate - Metric:1865m/h.Frame Dimensions:280mm x 280mm x 80mm.Frame Size:280mm.Noise Rating:66dBA.Power Connection Type:Terminal Block.SVHC:No SVHC (16-Jun-2014).Series:W2E.Supply Voltage:230VAC

http://www.amazon.com/EBM-PAPST-W2E250-HL06-01-AXIAL-230VAC/dp/B00MMX9B5S/ref=sr_1_1?ie=UTF8&qid=1452666821&sr=8-1&keywords=Ebm+Papst+W2E250-Hl06-01+Axial+Fan%2C+280Mm+X+280Mm+X+80Mm

It probably has terminals for you to connect the wires to directly, then you can put whatever plug you want on the other end? Nice looking fan.

So, this is not a fan to connect to 12VDC apparently.  It sounds like [From what you are saying] I need to buy a cord from Amazon or local hardware store for 208 to 240 VAC and wire it up to the fan [Plugging it directly into 208 to 240 VAC?  If this is the case, do you have any particular 208 to 240 VAC receptacle and cord to recommend?