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Win7 detecting less than half of my video memory

Last response: in Graphics & Displays
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September 30, 2011 3:27:08 PM

I've got a Sapphire Toxic Radeon HD 4850 512MB
DXDiag and Blizzard's beta system scanner are both showing me 244MB of video memory. GPU-Z and my display settings show 512MB. I'm not sure if the system is utilizing the full 512MB or not.

I was previously running WinXP pro (32bit) and the full 512MB showed up fine everywhere. I just installed a new motherboard, CPU, ram, and did a fresh install of Windows 7 Home Premium on a new HDD, and now this issue has appeared.

I've tried both the 11.9 drivers, and the 11.10 preview version, which I believe was released to give better Battlefield 3 beta performance.

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September 30, 2011 3:46:39 PM

honestly, if gpu-z is showing the ram, i would not worry about it.

with the new mobo, cpu and ram... why not a new GPU?
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September 30, 2011 4:02:47 PM

dxdiag is clearly broken for showing video memory i have a 1GB radeon 5770 and its showing it as same card but 3.7GB of memory
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September 30, 2011 4:11:44 PM

inerax said:
honestly, if gpu-z is showing the ram, i would not worry about it.

with the new mobo, cpu and ram... why not a new GPU?


I didn't have the money for a new GPU. The "new" parts are actually sort of old, just not used, and were a gift. (e.g. the CPU is a Phenom II)
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October 1, 2011 12:22:15 AM

If you are running win 32bit , it will only see 3.5 gb of memory total . What is the total amount of your ram ?
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October 1, 2011 12:26:34 AM

inzone said:
If you are running win 32bit , it will only see 3.5 gb of memory total . What is the total amount of your ram ?


I'm running Windows 7 Home Premium 64 bit. I have 8 gigs of memory, all of which is showing up properly.
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October 2, 2011 10:25:06 PM

dxdiag claims I have 348MB of memory on my 6950 2GB. Other programs see the full 2GB. No clue.
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October 13, 2011 12:39:43 AM

Best answer selected by Fleshfeast.
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