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Windows 7: gtx 970 SLI - barely any fps difference in-game

12 May 2016   #11
Erion95

Windows 7 Ultimate 64-bit
 
 

Quote   Quote: Originally Posted by ThrashZone View Post
Hi,
Never know until it's under a lot of stress or you start overclocking it further before you might run into power shortages.

Recommended spec's are mostly to cover their asses I'd imagine but the gpu does soak it up not counting everything else
Never heard of your psu (Be quiet 750w 80+) "gold" I guess ?
Silent 730W PSU PURE POWER L8 | 730W CM supply by be quiet!
Using alphaniner's calculator it says im using 661 watts under full load, and reccomends a 750w power supply.


My System SpecsSystem Spec
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12 May 2016   #12
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi,
Cutting it pretty close
My System SpecsSystem Spec
12 May 2016   #13
Erion95

Windows 7 Ultimate 64-bit
 
 

Quote   Quote: Originally Posted by ThrashZone View Post
Hi,
Cutting it pretty close
Do you think that's the problem then?
Is there any way i can verify?
Can i connect just my second card to the power supply of my dad's pc if i put my pc next to it, or doesnt that work?
My System SpecsSystem Spec
.

12 May 2016   #14
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi,
Doesn't the second card already have separate power cables from the psu ?
Each card should have it's own cables.
My System SpecsSystem Spec
12 May 2016   #15
Erion95

Windows 7 Ultimate 64-bit
 
 

Quote   Quote: Originally Posted by ThrashZone View Post
Hi,
Doesn't the second card already have separate power cables from the psu ?
Each card should have it's own cables.
Yes it does, but say that my current psu cannot give enough power to both cards - i should be able to see if that's the case if i connect 1 card to an entire different psu, right?
My System SpecsSystem Spec
12 May 2016   #16
alphaniner

Windows 7 Professional x64, Arch Linux
 
 

In general, using a second PSU to power certain components is a reasonable troubleshooting technique. But I'm not sure about using a different PSU to power each card in SLI. I doubt have no reason to assume it would cause harm, but it could potentially cause malfunction. If the second PSU has the juice and the connectors, I'd use it to power both GPUs.
My System SpecsSystem Spec
12 May 2016   #17
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi,
I'd say removing the second card completely and testing would be the better test
I've never sli'ed so ?

Or install each card solo and test each one separately see if they perform the same.
My System SpecsSystem Spec
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 gtx 970 SLI - barely any fps difference in-game




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