Running 4 290 on one PSU 1250 Watt

[Zombie123]

So,

I am running 4 XFX 290 with a single PSU 1250 Watt Seasonic GOLD
I am running all 4 at 20 Intensity 24Hrs a Day. All cards at 75C

Card 1 -- 890 Avg
Rest of tha cards 877 Avg

IS there any danger of Melting the RIG and I guess I am under powered as well using just 1 1250Watt PSU
No undervolting 3 cards locked didnt check the card 1 yet

 

[Gazza1]

I wonder if VBE7 would work on your cards for undervolting

[crazyates]

I have a 5x 290 rig, and that pulls ~1750W at the wall with 2 80Plus GOLD PSUs. Your 1250 is not cutting it. You need to buy a small secondary PSU, and move at least one of them off to it.

And no, last I checked VBE7, doesn't work on 290 cards. It only works on the 280x, and any Tahiti cards. The 290 and 290x are Hawaii chips.

[daddyfatsax]

So,

I am running 4 XFX 290 with a single PSU 1250 Watt Seasonic GOLD
I am running all 4 at 20 Intensity 24Hrs a Day. All cards at 75C

Card 1 -- 890 Avg
Rest of tha cards 877 Avg

IS there any danger of Melting the RIG and I guess I am under powered as well using just 1 1250Watt PSU
No undervolting 3 cards locked didnt check the card 1 yet

 

I ran 4 7970's off a Corsair 1250W PSU for 6 months. Got around 730k per card. I think the new R290's do pull more power, so I would have to agree you will need another smaller PSU.

[Zombie123]

Hmm Ok will think about adding one more card and another PSU... dont want to melt anything..though it seems to be stable for  couple of days now

[Gazza1]

hook a kilowatt up to the wall. i bet you are running near max if not over

[Zombie123]

I am running over at around 1300 but i read overclock forum that  it wont kill PSU. PSU can handle it

[Equate]

I am running over at around 1300 but i read overclock forum that  it wont kill PSU. PSU can handle it

just wait and watch, when it kill the psu.Then you will regret.

[samsonn25]

I had stock 290s pulling 260-270 watts on 95-99% load.

Seasonic 1250 can go hold at  least 1500 watts.

Adding a secondary PSU wouldnt hurt to spread out one of the cards, no additional motherboard and cpu draw if using a dummY plug for the 24pin atx.

[Zombie123]

I had stock 290s pulling 260-270 watts on 95-99% load.

Seasonic 1250 can go hold at  least 1500 watts.

Adding a secondary PSU wouldnt hurt to spread out one of the cards, no additional motherboard and cpu draw if using a dummY plug for the 24pin atx.

Thanks Guys I will get another sea sonic and 2 more cards and hash away !!! Waiting for risers.. which I ordered from China lol Risers in US  are around 25$ now which is ridiculous!

[maxman190]

Dude, I seriously recommend that you stop doing that right now and wait till you get another PSU.