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[Official] AMD R9 290X / 290 Owners Club - Page 1156

post #11551 of 43950
Quote:
Originally Posted by H1GHL4ND3R View Post

What brand and Watt-eg You have on your PSU?
Anything under 750Watt 80+Brown and OCing your CPU aswel , i would recomend hit the load default in UEFI (BIOS) , load windows check for arts , if there is non mean your 8pin or 6 pin power conector is low on power delivery that mean changing your PSu for something stronger , definitly not lower than 750 80+Silver , and if You run custom loop from the same PSU i wouldnt go lower than 850-1000Watt 80+Silver, this card in load can suck up to 380Watt on stock , and well over 420 Watt in OC , problem with low rated PSU is that most of them work actualy below 80% efficiency if its Brown u got guarnt that u hit 750Watt with 80% efficiency that give you around 650Watt of constant draw , so from sipmle math u cant run system with this card without power swings .


Sorry but you are mistaken. I just tested my setup

3770k @ 1.432 vcore (4.7ghz)
290x @ 1100 core / 1250mV +50% power tune
2 ssds and an hdd
5x 120mm fans
XSPC 750 v4 pump/res combo unit.

I ran both furmark+ intel burn test at the same time! that is about the heaviest load you can get imo.

and the most it pulled tested via watt meter was 550W.

When you do the efficiency calculation for an 80% bronze psu it comes out like this:

550W*0.85=467W

I'm tired of the misinformation people spread about psu requirements.

I am running on a 650W seasonic psu and the air coming out of the psu isn't even warm. Granted if it is a garbage unit that can't even put out 550W I'd consider replacing it.

bottom line: a quality 650W psu is plenty fine for a highly overclocked i5/i7 (probably most amd chips too) and an overclocked 290x + a water cooling loop.

Also you are wrong about how much power a watercooled 290/x can pull. My system @ idle desktop uses 146W (without doing the conversion to 0.85%) If I load up furmark then it jumps to 420W.

so it is around 274W for a watercooled 290x @ 1250mV with +50% power tune. Core clock doesn't add that much more power since the voltage is alrdy calculated. It is either 230-274 I'm not sure if I should * it by 0.85 before I minus the two numbers or before. But regardless it is not 380W

edit: actually it is 255W for the 290x since the cpu draws ~230W on it's own in ibt.

I have ran 2x 7950's on this exact same setup and it drew 100W more and everything was fine. This was for 5-6 months.
Edited by HardwareDecoder - 12/19/13 at 6:31am
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Gskill 4x4gb @ 1600mhz Samsung Evo 120gb Samsung Evo 120gb 2TB Seagate Game storage drive  
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XSPC Raystorm CPU BLOCK EK Nickle/Acetal 290x Block  2x XSPC 240MM Radiator Windows 8.1  
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post #11552 of 43950
Quote:
Originally Posted by jerrolds View Post

Can you provide a source for the 120C VRMs?

Me and one highly educated electrician read pdf which one of the users on OCN posted about reference vrms parts, mosfets & chokes.

95% of the vrms are rated to run ~ 120 as max, they got parameters listed for the temperature, they drop like 50% of their efficiency, and produce noise at that temp, hence the crashes.

Its bad to run them over 80c stability wise, if you want top oc- and stability. The electrician said, it would be best to aim for 50-60c thumb.gif
Quote:
Originally Posted by H1GHL4ND3R View Post

Thats why i was conser about tha temps , but only Kombusting or FURing make the VRM1 go up to 80 , under realy heavy load , in game i dont reach 60 with all games maxed out ,so i think im fine with it ;P

Definitely, you are good to go, great in fact smile.gif

What fan speed/oc you run?
Edited by psyside - 12/19/13 at 6:27am
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WD Blue EZEX 1TB & Samsung 840 Pro 256GB (OS) Asus Nocuta NH D14 WIN 7 64 Ultimate 
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post #11553 of 43950
Quote:
Originally Posted by Joeking78 View Post

Are you comparing GPU bios to GPU driver?

I do not know what he is comparing, but he is correct the beta 9.5's are the exact same drivers as the new WHQL's.
post #11554 of 43950
Whats is Power Tune on CCC? Like auto voltage? thinking.gif
post #11555 of 43950
Quote:
Originally Posted by HardwareDecoder View Post

Sorry but you are mistaken. I just tested my setup

3770k @ 1.432 vcore (4.7ghz)
290x @ 1100 core / 1250mV +50% power tune
2 ssds and an hdd
5x 120mm fans
XSPC 750 v4 pump/res combo unit.

I ran both furmark+ intel burn test at the same time! that is about the heaviest load you can get imo.

and the most it pulled tested via watt meter was 550W.

When you do the efficiency calculation for an 80% bronze psu it comes out like this:

550W*0.85=467W

I'm tired of the misinformation people spread about psu requirements.

I am running on a 650W seasonic psu and the air coming out of the psu isn't even warm. Granted if it is a garbage unit that can't even put out 550W I'd consider replacing it.

bottom line: a quality 650W psu is plenty fine for a highly overclocked i5/i7 (probably most amd chips too) and an overclocked 290x + a water cooling loop.

Also you are wrong about how much power a watercooled 290/x can pull. My system @ idle desktop uses 146W (without doing the conversion to 0.85%) If I load up furmark then it jumps to 420W.

so it is around 274W for a watercooled 290x @ 1250mV with +50% power tune. Core clock doesn't add that much more power since the voltage is alrdy calculated. It is either 230-274 I'm not sure if I should * it by 0.85 before I minus the two numbers or before. But regardless it is not 380W

edit: actually it is 255W for the 290x since the cpu draws ~230W on it's own in ibt.

I have ran 2x 7950's on this exact same setup and it drew 100W more and everything was fine. This was for 5-6 months.

+ rep. Wish more would read this, as my initial attempt to clear things up failed.
post #11556 of 43950
Quote:
Originally Posted by the9quad View Post

I do not know what he is comparing, but he is correct the beta 9.5's are the exact same drivers as the new WHQL's.

I get much lower 3dmark scores with the 13.12 compared to 9.2beta...have you tested/compared them yet?
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post #11557 of 43950
Quote:
Originally Posted by bond32 View Post

+ rep. Wish more would read this, as my initial attempt to clear things up failed.

Thanks I had a bunch of help from user @TwoCables when I initially wanted to know If my 650W could handle 2 overclocked 7950's with my oc'ed cpu. I had people telling me I needed a 1000W psu so it irks me whenever I see misinformation on the subject.
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XSPC Raystorm CPU BLOCK EK Nickle/Acetal 290x Block  2x XSPC 240MM Radiator Windows 8.1  
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Gskill 4x4gb @ 1600mhz Samsung Evo 120gb Samsung Evo 120gb 2TB Seagate Game storage drive  
CoolingCoolingCoolingOS
XSPC Raystorm CPU BLOCK EK Nickle/Acetal 290x Block  2x XSPC 240MM Radiator Windows 8.1  
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post #11558 of 43950
Quote:
Originally Posted by Joeking78 View Post

I get much lower 3dmark scores with the 13.12 compared to 9.2beta...have you tested/compared them yet?

I was about 100 to 150 points lower yes
post #11559 of 43950
Hey everyone. Just wanted to know all your thoughts on Nvidia G-Sync. Is it the end for AMD?
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Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
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XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
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EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
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post #11560 of 43950
Quote:
Originally Posted by BradleyW View Post

Hey everyone. Just wanted to know all your thoughts on Nvidia G-Sync. Is it the end for AMD?

Yeah amd is done for....sucks to be amd right now they are stuck in all of the next gen consoles,can't keep any of their cards on the shelf, have a new API debuting this month, and a gsync like feature they are announcing soon....sucks to be amd....
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