Which PSU for 6x R9 390? | Bitcointalksearch.org

fricircled

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Quote from: Vaccinus on April 05, 2016, 07:02:34 AM

Quote from: fricircled on April 01, 2016, 07:00:35 AM

Quote from: mistanama on March 27, 2016, 04:21:20 AM

Quote from: fricircled on March 16, 2016, 09:28:58 PM

Quote from: Deki1904 on March 16, 2016, 05:25:33 AM

Corsair CP-9020057-EU AX Serie AX1500i ATX/EPS 80 PLUS Titanium 1500Watt, Digital, Netzteil, EU
this one or the Lepa 1600w?
for 4x R9 390?

For 4x390, 1500W is enough.

1500W is even enough for 6x390 if you use the -100mV undervoltage. That will consumes about 220W each.

The 1500W power supplies are usually not single rail, so you have to distribute the power properly among the rails.

read http://www.corsair.com/en/ax1500i-digital-atx-power-supply-1500-watt-fully-modular-psu

corsair 1500 can be set to operate with single or multiple rail

That is just an exception. I saw quite a few 1200/1250W power supply are single rails. I use the OCZ 1250.

Vaccinus

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Quote from: fricircled on April 01, 2016, 07:00:35 AM

Quote from: mistanama on March 27, 2016, 04:21:20 AM

Quote from: fricircled on March 16, 2016, 09:28:58 PM

Quote from: Deki1904 on March 16, 2016, 05:25:33 AM

Corsair CP-9020057-EU AX Serie AX1500i ATX/EPS 80 PLUS Titanium 1500Watt, Digital, Netzteil, EU
this one or the Lepa 1600w?
for 4x R9 390?

For 4x390, 1500W is enough.

1500W is even enough for 6x390 if you use the -100mV undervoltage. That will consumes about 220W each.

The 1500W power supplies are usually not single rail, so you have to distribute the power properly among the rails.

read http://www.corsair.com/en/ax1500i-digital-atx-power-supply-1500-watt-fully-modular-psu

corsair 1500 can be set to operate with single or multiple rail

Pamadar

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Quote from: fricircled on April 01, 2016, 07:00:35 AM

Quote from: mistanama on March 27, 2016, 04:21:20 AM

Quote from: fricircled on March 16, 2016, 09:28:58 PM

Quote from: Deki1904 on March 16, 2016, 05:25:33 AM

Corsair CP-9020057-EU AX Serie AX1500i ATX/EPS 80 PLUS Titanium 1500Watt, Digital, Netzteil, EU
this one or the Lepa 1600w?
for 4x R9 390?

For 4x390, 1500W is enough.

1500W is even enough for 6x390 if you use the -100mV undervoltage. That will consumes about 220W each.

The 1500W power supplies are usually not single rail, so you have to distribute the power properly among the rails.

That is very important. If the power is not distributed properly and within the limits, the power supply will crash and the computer will restart.

fricircled

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Quote from: mistanama on March 27, 2016, 04:21:20 AM

Quote from: fricircled on March 16, 2016, 09:28:58 PM

Quote from: Deki1904 on March 16, 2016, 05:25:33 AM

Corsair CP-9020057-EU AX Serie AX1500i ATX/EPS 80 PLUS Titanium 1500Watt, Digital, Netzteil, EU
this one or the Lepa 1600w?
for 4x R9 390?

For 4x390, 1500W is enough.

1500W is even enough for 6x390 if you use the -100mV undervoltage. That will consumes about 220W each.

The 1500W power supplies are usually not single rail, so you have to distribute the power properly among the rails.

mistanama

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Quote from: fricircled on March 16, 2016, 09:28:58 PM

Quote from: Deki1904 on March 16, 2016, 05:25:33 AM

Corsair CP-9020057-EU AX Serie AX1500i ATX/EPS 80 PLUS Titanium 1500Watt, Digital, Netzteil, EU
this one or the Lepa 1600w?
for 4x R9 390?

For 4x390, 1500W is enough.

1500W is even enough for 6x390 if you use the -100mV undervoltage. That will consumes about 220W each.

fricircled

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Activity: 201

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Quote from: Deki1904 on March 16, 2016, 05:25:33 AM

Corsair CP-9020057-EU AX Serie AX1500i ATX/EPS 80 PLUS Titanium 1500Watt, Digital, Netzteil, EU
this one or the Lepa 1600w?
for 4x R9 390?

For 4x390, 1500W is enough.

Eliovp

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Huh?

I own the lepa g1600 and i'm very happy with it.

Up to you..

Deki1904

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Corsair CP-9020057-EU AX Serie AX1500i ATX/EPS 80 PLUS Titanium 1500Watt, Digital, Netzteil, EU
this one or the Lepa 1600w?
for 4x R9 390?

Deki1904

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Activity: 490

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Thank you

i saw it to late.

Eliovp

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Huh?

Quote from: Deki1904 on March 16, 2016, 05:06:24 AM

I have one problem, how i connect 6x USB 3.0 Riser to a MOBO?

As i see the H81 got only usb2.0

You don't need 6x usb..you need 6x pci 1x or 16x.

The usb is the connection from the risercard to the pci connection :-)

Deki1904

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oh i see..
http://www.ebay.de/itm/PCI-Express-PCI-E-1x-16x-Extender-Riser-Card-mit-USB3-0-SATA-15P-Kabel-Adapter-/361440109402

there is a adapter for the pcie slot?

Deki1904

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Activity: 490

Merit: 250

I have one problem, how i connect 6x USB 3.0 Riser to a MOBO?

As i see the H81 got only usb2.0

Deki1904

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the 1500w psu is for the 3x r9 390

the 1000w psu are for 6x r7 390

Ayers

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Quote from: Deki1904 on March 16, 2016, 03:22:04 AM

http://www.amazon.de/registry/wishlist/1MRLE4E80HZZ2

my rigs. did i forgot something?

i think you're ordering too much stuff that do not contibute to the profit, leave those alone and buy only what is needed, and 1500+1000w seems overkill, are you sure you need that amount?

Deki1904

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http://www.amazon.de/registry/wishlist/1MRLE4E80HZZ2

my rigs. did i forgot something?

Basteamore

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Quote from: Deki1904 on March 15, 2016, 08:25:39 AM

I made a desicion to use R9 380

Any one expirence in Undervolting them and settings?

You need to use the 4GB version.

Deki1904

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I made a desicion to use R9 380

Any one expirence in Undervolting them and settings?

bathrobehero

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Quote from: Pamadar on March 15, 2016, 03:50:31 AM

Quote from: bathrobehero on March 14, 2016, 06:08:49 PM

Quote from: mistanama on March 14, 2016, 05:07:50 PM

Quote from: Eliovp on March 14, 2016, 01:13:04 PM

Quote from: Deki1904 on March 14, 2016, 12:03:03 PM

Thank you all.

Im just thinking about the Nano, it use only 150W at 28Mhs i saw.

That test was a few months ago. Hashrate has dropped a little due to the bigger DAG file.

It's more like 26Mh @ 150W.

But more interesting = 22Mh @ 65W with some down clocking. Wink

It is not possible for 22MH @65W. The maximum down voltage is -100 mV with MSI afterburner as far as I know.

It's about Power Target or TDP Limit or however you want to call it and not voltage.

In AMD cards, you can only change the voltage to affect the power consumption. For R9 390 it is -100 mV for Afterburner.

Nonsense. Not 100% sure that you can reduce it below 100% but I know there's an option to change it.

Eliovp

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Huh?

Quote from: antantti on March 15, 2016, 03:37:09 AM

Quote from: bathrobehero on March 14, 2016, 06:08:49 PM

Quote from: mistanama on March 14, 2016, 05:07:50 PM

Quote from: Eliovp on March 14, 2016, 01:13:04 PM

Quote from: Deki1904 on March 14, 2016, 12:03:03 PM

Thank you all.

Im just thinking about the Nano, it use only 150W at 28Mhs i saw.

That test was a few months ago. Hashrate has dropped a little due to the bigger DAG file.

It's more like 26Mh @ 150W.

But more interesting = 22Mh @ 65W with some down clocking. Wink

It is not possible for 22MH @65W. The maximum down voltage is -100 mV with MSI afterburner as far as I know.

It's about Power Target or TDP Limit or however you want to call it and not voltage.

I have a feeling eliovp uses custom bios too...

You can pull the bios from the card, mod it manually and rewrite it.

Not that difficult. However, when you do it wrong, you could break it and bye bye to your warranty..

Use to do that a lot when running only on linux.

Thx to Wolf though :-)

Pamadar

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Quote from: bathrobehero on March 14, 2016, 06:08:49 PM

Quote from: mistanama on March 14, 2016, 05:07:50 PM

Quote from: Eliovp on March 14, 2016, 01:13:04 PM

Quote from: Deki1904 on March 14, 2016, 12:03:03 PM

Thank you all.

Im just thinking about the Nano, it use only 150W at 28Mhs i saw.

That test was a few months ago. Hashrate has dropped a little due to the bigger DAG file.

It's more like 26Mh @ 150W.

But more interesting = 22Mh @ 65W with some down clocking. Wink

It is not possible for 22MH @65W. The maximum down voltage is -100 mV with MSI afterburner as far as I know.

It's about Power Target or TDP Limit or however you want to call it and not voltage.

In AMD cards, you can only change the voltage to affect the power consumption. For R9 390 it is -100 mV for Afterburner.

Topic: Which PSU for 6x R9 390? (Read 3860 times)