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GTX 1080 registering 4b of ram?

leroy94
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Hi everyone

 

ive been playing with my first SLI setup recently testing it on a friends 4k monitor and ive been having a few issues but thats in a different post.

 

whilst ive been pouring over internet forums trying to come up with a solution i noticed this in my dxdiag in windows 7:

Capture2.PNG.c8b1e0a889260307627ce241e1a30b97.PNG

 

My GTX 1080 is only recognised as having 4095mb by direct x

 

this is in windows 7 with all the updates, the latest driver (plus an attempt to resolve by doing a driver rollback) and the latest motherboard bios as a just in case.

 

interestingly i don't not get this problem in windows 10 but im having other problems in SLI with this that i wont go into now.

 

im noticing quite a difference in frame rate in windows 10 with all the same drivers with direct x11 games and can only put it down to this right now. does anyone know of a fix for this?

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Direct X is sometime not accurate, just use GPU-Z

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Just now, deXxterlab97 said:

Direct X is sometime not accurate, just use GPU-Z

Yeah, check GPU-Z first.  I hope it's just Direct X being stupid, because your GTX 1080 would have 4GB of dead RAM if it's not. :( 

Sorry for the mess!  My laptop just went ROG!

"THE ROGUE":  ASUS ROG Zephyrus G15 GA503QR (2021)

  • Ryzen 9 5900HS
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  • 24GB DDR4-3200 (8+16)
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  • 90Wh battery + 200W power brick
  • 15.6" 1440p 165Hz IPS Pantone display
  • Logitech G603 mouse + Logitech G733 headset

"Hex": Dell G7 7588 (2018)

  • i7-8750H
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Other tech: Apple iPhone 14 Pro Max 256GB in White, Sennheiser PXC 550-II, Razer Hammerhead earbuds, JBL Tune Flex earbuds, OontZ Angle 3 Ultra, Raspberry Pi 400, Logitech M510 mouse, Redragon S113 keyboard & mouse, Cherry MX Silent Red keyboard, Cooler Master Devastator II keyboard (not in use), Sennheiser HD4.40BT (not in use)

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Posted (edited)
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Capture3.PNG.42a2fbaac2219a3137ea7863f5017b9a.PNG

GPUz sees it correctly but id have thought games that run directX 11 would use the same protocols to detect hardware as dx diag so they wouldn't see the correct amount of ram either? something else to note is that in windows 7 witcher 3 does not run at above 47 fps in 4k but in windows 10 where direct x is seeing the graphics cards correctly it runs at a stable 60?

Edited by leroy94
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