Best PSU for R9 390 series - page 2.

antantti

legendary

Activity: 1176

Merit: 1015

Quote from: forato on December 07, 2016, 04:06:30 PM

Quote from: antantti on December 07, 2016, 04:01:09 PM

Quote from: forato on December 07, 2016, 03:48:38 PM

Quote from: antantti on December 07, 2016, 03:21:03 PM

1000w gold psu should easily feed 3x390 everything default.

thats not correct friend..

Sometimes a R9 goes to 400W 3x400 = 1200W

If you use dual mining ETH + DECRED for example, unfortuny this happen.. (on stock)

You are right, forgot someone could be dualmining.

Give me one example where 1000w can't feed 3x390, launch config. I will try it right away.

i tryed here with zcash v8 (works)

the problem on my rigs with psu is when i use this:

Claymore's Dual Ethereum+Decred_Siacoin_Lbry AMD+NVIDIA GPU Miner v7.3
6 x r9 390 (powercolor)
2x 1000W gold plus PSU

tryed on 2 rigs

1 - Work for 4 hours than reset
2 - Reset after 20 minutes (and i thought the psu was broken, but is wasa not)

So you have two 3x390 rigs? Or two 6x390? Or one 6x390 rig powered by 2x1000w psu?

forato

full member

Activity: 237

Merit: 100

Quote from: antantti on December 07, 2016, 04:01:09 PM

Quote from: forato on December 07, 2016, 03:48:38 PM

Quote from: antantti on December 07, 2016, 03:21:03 PM

1000w gold psu should easily feed 3x390 everything default.

thats not correct friend..

Sometimes a R9 goes to 400W 3x400 = 1200W

If you use dual mining ETH + DECRED for example, unfortuny this happen.. (on stock)

You are right, forgot someone could be dualmining.

Give me one example where 1000w can't feed 3x390, launch config. I will try it right away.

i tryed here with zcash v8 (works)

the problem on my rigs with psu is when i use this:

Claymore's Dual Ethereum+Decred_Siacoin_Lbry AMD+NVIDIA GPU Miner v7.3
6 x r9 390 (powercolor)
2x 1000W gold plus PSU

tryed on 2 rigs

1 - Work for 4 hours than reset
2 - Reset after 20 minutes (and i thought the psu was broken, but is wasa not)

antantti

legendary

Activity: 1176

Merit: 1015

Quote from: forato on December 07, 2016, 03:48:38 PM

Quote from: antantti on December 07, 2016, 03:21:03 PM

1000w gold psu should easily feed 3x390 everything default.

thats not correct friend..

Sometimes a R9 goes to 400W 3x400 = 1200W

If you use dual mining ETH + DECRED for example, unfortuny this happen.. (on stock)

You are right, forgot someone could be dualmining.

Give me one example where 1000w can't feed 3x390, launch config. I will try it right away.

forato

full member

Activity: 237

Merit: 100

Quote from: antantti on December 07, 2016, 03:21:03 PM

1000w gold psu should easily feed 3x390 everything default.

thats not correct friend..

Sometimes a R9 goes to 400W 3x400 = 1200W

If you use dual mining ETH + DECRED for example, unfortuny this happen.. (on stock)

antantti

legendary

Activity: 1176

Merit: 1015

1000w gold psu should easily feed 3x390 everything default.

eckmar

legendary

Activity: 1878

Merit: 1038

Telegram: https://t.me/eckmar

Hey, maybe you can try to modify server PSU. They are much more stable under load and much more efficient than normal PSUs. I saw a lot of guys do that so i did it few months ago and it's working fine under full load (1000w). You can search this forum, a guy posted tutorial few years back, and best of all 1000w PSU i found for less than 50$

Charloz24

hero member

Activity: 966

Merit: 501

Quote from: forato on December 07, 2016, 09:58:42 AM

Hello gus..

I have some rigs with RX 480 cards (5 or 6 cards each one) and i use 2 psu x 850W in each Rig.

Now i am making some R9 390 rigs.. But i can see that i will need at least 850W PSU for 2 cards.. I tryed to power on 3 cards on a 1000W gold plus PSU and sometimes it goes off..

Is this normal? Huh

3 on 1000W should do the job, try undervolting maybe? (- 100mv)

I run 3X 290 on a 850W...

adaseb

legendary

Activity: 3808

Merit: 1723

Quote from: forato on December 07, 2016, 09:58:42 AM

Hello gus..

I have some rigs with RX 480 cards (5 or 6 cards each one) and i use 2 psu x 850W in each Rig.

Now i am making some R9 390 rigs.. But i can see that i will need at least 850W PSU for 2 cards.. I tryed to power on 3 cards on a 1000W gold plus PSU and sometimes it goes off..

Is this normal? Huh

Undervolt those 390s. 3 should work on a 1000W PSU.

forato

full member

Activity: 237

Merit: 100

Hello gus..

I have some rigs with RX 480 cards (5 or 6 cards each one) and i use 2 psu x 850W in each Rig.

Now i am making some R9 390 rigs.. But i can see that i will need at least 850W PSU for 2 cards.. I tryed to power on 3 cards on a 1000W gold plus PSU and sometimes it goes off..

Is this normal? Huh

Topic: Best PSU for R9 390 series - page 2. (Read 1086 times)