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post #15371 of 43916
Quote:
Originally Posted by Forceman View Post

Yes, you can run two PSUs like that to spread the load. They sell adapter things so that the second one comes on with the first also, should be able to find one at FrozenCPU or Performance PCs, somewhere like that, but I can't remember the name of the adapter thing off-hand.

Quote:
Originally Posted by geggeg View Post

ADD2PSU

Thank you! And thanks to the others that chimed in earlier, as well!

I don't think I'll need an adapter since my computer stays on pretty much 24/7.
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post #15372 of 43916
Quote:
Originally Posted by Ukkooh View Post

I just got an odd issue with my gpu. I was taking the dog out and shortly after I came back I lost signal on my monitor and the gpu fan started running at 100%. Is this something to get worried about?
Probably just crashed. No need to worry. If it's persistent then you need to check your PSU. If you use modular PSU and/or using extension PCIe power cables, check the cables. Sometime the pins doesn't make proper contact even though the connector seems connected properly. If the problem still persist with different PSU & cables are confirmed ok, then maybe something is wrong with the card.
Quote:
Originally Posted by Redvineal View Post

Question for you smart power supply folks...

I'm set to receive my 2nd and 3rd R9 290's on Friday. As I mentioned in previous posts, I have a Corsair AX860 PSU that can handle 2 cards for a while. In order to power the 3rd card, I'm considering using an older 850 PSU I have lying around.

Is it safe for me to use PCIe power connectors from 1 PSU on 2 cards, and PCIe power connectors from a second PSU to power the 3rd card?

I've seen builds with dual PSUs, but not sure about the risks and considerations involved.

(edit: btw, this is all just a temporary solution until I can find a nice high output PSU in stock somewhere)

Thanks!
Yes you can. It definitely safe. You can get dual power supply connector/adapter. It's optional though but you can turn on/off both power supply at the same time. You also can DIY the connector yourself.



Quote:
Originally Posted by Loktar Ogar View Post

I just realized that the R9 290/290x GPU is hot (ref and non-ref)! It makes my room warm and the exhaust blows directly to my feet since i don't have a PC chassis yet. biggrin.gif
What more if you run this in X-fire or Tri-fire? devil.gif I guess it doesn't matter if you are using a watercooling setup and the ambient temp results will be the same? rolleyes.gif
My room is hotter when I'm using stock cooler because the heat is concentrated at one spot in the room. I have dual GPU, you can imagine how much heat it produce. With watercooling setup, the heat being removed by radiator(s). It still warm up my room but not like when using stock cooler because the heat no longer concentrated at one spot in the room.
Edited by kizwan - 1/29/14 at 7:58pm
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post #15373 of 43916
Quote:
Originally Posted by esqueue View Post

If space is an issue, get a modulated power supply (removable cables). I have an Antec 620m Power supply that I love.

I'm limited to a 140mm long PSU. A 140mm modular PSU would only fit if I didn't use any of the cables. My case is the SG08, I have an mITX system.
Quote:
Originally Posted by Loktar Ogar View Post

If you don't have plans of doing X-fire in the near future, i will not suggest getting more than 600W PSU if you only pulling 420W at your OC settings to save money for your next upgrade.

My best tip is to get a high efficiency and very good quality PSU if you really want a PSU upgrade as i have been told before by a PSU guru. thumb.gif

Well, yea, I generally go that route. The SG08 comes with a 600W Silverstone 80Plus Bronze PSU. I am not sure if I can trust it as far as voltage output, so I'm considering a Seasonic as a replacement. As this is the rig in my sig, it's mITX, so no x-fire.

Quote:
Originally Posted by shilka View Post

A 550 watts is enough if you dont overvolt

I do overvolt, and those power draw numbers I posted are with an overclocked and overvolted GPU/CPU under in-game load.
Quote:
Originally Posted by Sazz View Post

You can't trust any of the voltage monitor software, if you want a precise measurement of voltage you would need a multi-meter. heck I got Asus Probe Utility installed and it says my 12v drops to 0.12v and at that voltage my system should have crashed, LOL Heck it even says my CPU voltage goes as low as 0.05v LOLOL


They generally just give you an idea on how much voltage you are using but not the exact amount.

Well, I think GPU-Z is measuring the 12v supply to the card, where all the motherboard monitoring software I have read the 12v as 1.26v. The Kill-A-Watt is what I'm using to measure power draw.
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post #15374 of 43916
Quote:
Originally Posted by kizwan View Post

My room is hotter when I'm using stock cooler because the heat is concentrated at one spot in the room. I have dual GPU, you can imagine how much heat it produce. With watercooling setup, the heat being removed by radiator(s). It still warm up my room but not like when using stock cooler because the heat no longer concentrated at one spot in the room.

A BTU is the same whether it is put out in a concentrated area or a wide area. A cooling system may take longer as the water can store quite a bit of the heat but it will put out the exact heat as a fan. A soldering iron will feel hotter to the touch as it is concentrated heat but the computer is generating more heat and will heat up a room way more than a 40 watt soldering ever will. Even at 15 watts a soldering iron is impossible to touch.
post #15375 of 43916
Question: I have one R9 290 running, OCed to 1150/1450 and +87mv. I was playing BF4 and I usually get frames of 90-120 normally. However, today I connected a 1440x900 monitor and without even using the monitor (its just connected via DVI and powered on), my frames drop to 40-60 in game. Is this normal? Any way I can improve this?

Thanks.
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post #15376 of 43916
Thread Starter 
I was reading about the beta driver for mantle. I thought it was going to be a completed ready project. Looks like the bigger improvements are going to come from lower performing CPU's not so much on higher end. I wonder if it's in beta stages for Battlefield 4 implementation or includes other supported upcoming games like Thief and Star Citizen?

AMD Catalyst 14.1 Beta Driver Brings Mantle Support, Frame Pacing Phase 2, HSA

AMD
Quote:
We want to convey that this is only the initial release of Mantle. Mantle will continue to grow, evolve and improve in the months ahead. As an initial release, however, there is a list of known issues we are tracking. Everyone in the Mantle ecosystem is working to identify the root cause of these problems, and to resolve them as quickly as possible. As they are resolved, we and our partners will be issuing new drivers and patches as necessary!

We felt it best to get users working with and providing feedback on Mantle as soon as possible, rather than hold the entire launch for select scenarios that aren’t performing up to our expectations. The known issues will be posted for all to see at www.amd.com/mantleknownissues, and attached you will find the complete list.


Stats
Quote:
Core i7-4960X CPU + R9 290X GPU
◦1080p, Ultra Preset, 4xAA: 9.2% improvement with Mantle
◦1600p, Ultra Preset, 4xAA: 10% improvement with Mantle


•Core i7-4960X CPU + R7 260X GPU
◦1080p, Ultra Preset, 4xAA: 2.7% improvement
◦1600p, Ultra Preset, 4xAA: 1.4% improvement

A10-7700K CPU + R9 290X GPU
◦1080p, Ultra Preset, 4xAA: 40.9% improvement
◦1600p, Ultra Preset, 4xAA: 17.3% improvement


•A10-7700K CPU + R7 260X GPU
◦1080p, Ultra Preset, 4xAA: 8.3% improvement
◦1600p, Low Preset: 16.8% improvement

Hope we get some Mantle results soon and confirm these gains gaming.
     
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post #15377 of 43916
Quote:
Originally Posted by Redvineal View Post

My single card system right now on full load uses about 430-440W at stock. Adding two cards will probably bust the AX860 easily.

I don't mind the ghetto rig for a few days/weeks. I just need to know if I can safely jump the TX850 and use only its PCIe connectors on 1 or 2 cards. Just to supplement the power. Mainly, I'm concerned that I'm not considering something with the ghetto rig which could cause GPU failure, fire, or whatever else is worse than those!

Has anyone tried this before? Am I the first around here to come up with such an idea?

Every OC post I've read about dual PSU's were people wanting to use 2x1200W units or something crazy like that. The only responses were "man, that's overkill, save your money" type responses.
860w is likely fine for 3 cards, as long as there is no overvolting.
post #15378 of 43916
Can you add me.


It's a Sapphire TRI X R9 290X OC biggrin.gif

GPUZ Validation: http://www.techpowerup.com/gpuz/c6nvr/
Edited by DamnedLife - 1/29/14 at 11:28pm
post #15379 of 43916
Quote:
Originally Posted by kizwan View Post

Probably just crashed. No need to worry. If it's persistent then you need to check your PSU. If you use modular PSU and/or using extension PCIe power cables, check the cables. Sometime the pins doesn't make proper contact even though the connector seems connected properly. If the problem still persist with different PSU & cables are confirmed ok, then maybe something is wrong with the card.
Yes you can. It definitely safe. You can get dual power supply connector/adapter. It's optional though but you can turn on/off both power supply at the same time. You also can DIY the connector yourself.

I guess I'll check the PSU cables today. Thanks for the tip.
     
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post #15380 of 43916
Hey guys - dont have mine yet but hopefully soon. Quick heads up - 27" mon @ 1440p 120hz. 2x GTX 670 OC models. 1000w AURUM PSU.

I'm looking to go 2x 290's - I'm working out trying to decide which card to get! Options include:

Saph Tri X
Gigabyte Windforce
Powercolour PCS+

Question:
Will my 1000w PSU handle my OC'd CPU which is a 4670k @ 4.4ghz 1.27v AND 2x 290's OC?

Which card would be the best to Xfire / heat dissipation / OC ability? Don't care about noise or price to much just dont want the things to throttle under head etc with a nice healthy OC?

Cheers,
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